version 1.71, 2004/03/23 16:35:15
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version 1.103, 2005/03/27 05:08:03
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Line 55 use Apache::loncommon();
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Line 55 use Apache::loncommon();
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use Apache::lonhtmlcommon; |
use Apache::lonhtmlcommon; |
use Apache::loncoursedata; |
use Apache::loncoursedata; |
use Apache::lonstatistics; |
use Apache::lonstatistics; |
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use LONCAPA::lonmetadata(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Spreadsheet::WriteExcel; |
use Spreadsheet::WriteExcel; |
use Apache::lonstathelpers(); |
use Apache::lonstathelpers(); |
use Time::HiRes; |
use Time::HiRes; |
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my @StatsArray; |
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my %SeqStat; # keys are symbs, values are hash refs |
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## |
## |
## Localization notes: |
## Localization notes: |
## |
## |
Line 66 use Time::HiRes;
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Line 71 use Time::HiRes;
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## header for plots created with Graph.pm, both of which more than likely do |
## header for plots created with Graph.pm, both of which more than likely do |
## not support localization. |
## not support localization. |
## |
## |
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# |
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# |
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## |
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## Description of Field attributes |
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## |
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## Attribute Required Value Meaning or Use |
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## |
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## name yes any scalar Used to uniquely identify field |
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## title yes any scalar This is what the user sees to identify |
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## the field. Passed through &mt(). |
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## long_title yes any scalar Used as graph heading and in excel |
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## output. NOT translated |
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## align no (left|right|center) HTML cell contents alignment |
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## color yes html color HTML cell background color |
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## used to visually group statistics |
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## special no (link) Indicates a link, target is name.link |
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## Currently set in &get_statistics() |
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## graphable no (yes|no) Can a bar graph of the field be |
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## produced? |
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## sortable no (yes|no) Should a sort link be put in the |
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## column header? |
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## selectable yes (yes|no) Can the column be removed from the |
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## statistics display? |
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## selected yes (yes|no) Is the column selected by default? |
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## |
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## format no sprintf format string |
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## |
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## excel_format no excel format type |
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## (see &Apache::loncommon::define_excel_formats |
my @Fields = ( |
my @Fields = ( |
{ name => 'problem_num', |
{ name => 'problem_num', |
title => 'P#', |
title => 'P#', |
align => 'right', |
align => 'right', |
color => '#FFFFE6' }, |
color => '#FFFFE6', |
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selectable => 'no', |
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defaultselected => 'yes', |
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}, |
{ name => 'container', |
{ name => 'container', |
title => 'Sequence or Folder', |
title => 'Sequence or Folder', |
align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
sortable => 'yes' }, |
sortable => 'yes', |
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selectable => 'no', |
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defaultselected => 'yes', |
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}, |
{ name => 'title', |
{ name => 'title', |
title => 'Title', |
title => 'Title', |
align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
special => 'link', |
special => 'link', |
sortable => 'yes', }, |
sortable => 'yes', |
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selectable => 'no', |
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defaultselected => 'yes', |
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}, |
{ name => 'part', |
{ name => 'part', |
title => 'Part', |
title => 'Part', |
align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
}, |
selectable => 'no', |
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defaultselected => 'yes', |
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}, |
{ name => 'num_students', |
{ name => 'num_students', |
title => '#Stdnts', |
title => '#Stdnts', |
align => 'right', |
align => 'right', |
Line 94 my @Fields = (
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Line 139 my @Fields = (
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format => '%d', |
format => '%d', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Number of Students Attempting Problem' }, |
long_title => 'Number of Students Attempting Problem', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'tries', |
{ name => 'tries', |
title => 'Tries', |
title => 'Tries', |
align => 'right', |
align => 'right', |
Line 102 my @Fields = (
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Line 150 my @Fields = (
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format => '%d', |
format => '%d', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Total Number of Tries' }, |
long_title => 'Total Number of Tries', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'max_tries', |
{ name => 'max_tries', |
title => 'Max Tries', |
title => 'Max Tries', |
align => 'right', |
align => 'right', |
Line 110 my @Fields = (
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Line 161 my @Fields = (
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format => '%d', |
format => '%d', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Maximum Number of Tries' }, |
long_title => 'Maximum Number of Tries', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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{ name => 'min_tries', |
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title => 'Min Tries', |
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align => 'right', |
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color => '#DDFFFF', |
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format => '%d', |
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sortable => 'yes', |
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graphable => 'yes', |
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long_title => 'Minumum Number of Tries', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'mean_tries', |
{ name => 'mean_tries', |
title => 'Mean Tries', |
title => 'Mean Tries', |
align => 'right', |
align => 'right', |
Line 118 my @Fields = (
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Line 183 my @Fields = (
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format => '%5.2f', |
format => '%5.2f', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Average Number of Tries' }, |
long_title => 'Average Number of Tries', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'std_tries', |
{ name => 'std_tries', |
title => 'S.D. tries', |
title => 'S.D. tries', |
align => 'right', |
align => 'right', |
Line 126 my @Fields = (
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Line 194 my @Fields = (
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format => '%5.2f', |
format => '%5.2f', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Standard Deviation of Number of Tries' }, |
long_title => 'Standard Deviation of Number of Tries', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'skew_tries', |
{ name => 'skew_tries', |
title => 'Skew Tries', |
title => 'Skew Tries', |
align => 'right', |
align => 'right', |
Line 134 my @Fields = (
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Line 205 my @Fields = (
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format => '%5.2f', |
format => '%5.2f', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Skew of Number of Tries' }, |
long_title => 'Skew of Number of Tries', |
{ name => 'deg_of_diff', |
selectable => 'yes', |
title => 'DoDiff', |
defaultselected => 'no', |
align => 'right', |
}, |
color => '#DDFFFF', |
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format => '%5.2f', |
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sortable => 'yes', |
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graphable => 'yes', |
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long_title => 'Degree of Difficulty'. |
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'[ 1 - ((#YES+#yes) / Tries) ]'}, |
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{ name => 'num_solved', |
{ name => 'num_solved', |
title => '#YES', |
title => '#YES', |
align => 'right', |
align => 'right', |
Line 151 my @Fields = (
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Line 216 my @Fields = (
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format => '%4.1f',# format => '%d', |
format => '%4.1f',# format => '%d', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Number of Students able to Solve' }, |
long_title => 'Number of Students able to Solve', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'num_override', |
{ name => 'num_override', |
title => '#yes', |
title => '#yes', |
align => 'right', |
align => 'right', |
Line 159 my @Fields = (
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Line 227 my @Fields = (
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format => '%4.1f',# format => '%d', |
format => '%4.1f',# format => '%d', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Number of Students given Override' }, |
long_title => 'Number of Students given Override', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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{ name => 'tries_per_correct', |
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title => 'tries/correct', |
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align => 'right', |
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color => '#FFDDDD', |
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format => '%4.1f', |
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sortable => 'yes', |
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graphable => 'yes', |
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long_title => 'Tries per Correct Answer', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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{ name => 'num_wrong', |
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title => '#Wrng', |
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align => 'right', |
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color => '#FFDDDD', |
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format => '%4.1f', |
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sortable => 'yes', |
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graphable => 'yes', |
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long_title => 'Number of students whose final answer is wrong', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'per_wrong', |
{ name => 'per_wrong', |
title => '%Wrng', |
title => '%Wrng', |
align => 'right', |
align => 'right', |
color => '#FFFFE6', |
color => '#FFDDDD', |
format => '%4.1f', |
format => '%4.1f', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Percent of students whose final answer is wrong' }, |
long_title => 'Percent of students whose final answer is wrong', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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{ name => 'deg_of_diff', |
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title => 'DoDiff', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%5.2f', |
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sortable => 'yes', |
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graphable => 'yes', |
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long_title => 'Degree of Difficulty'. |
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'[ 1 - ((#YES+#yes) / Tries) ]', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
{ name => 'deg_of_disc', |
{ name => 'deg_of_disc', |
title => 'Deg of Disc', |
title => 'DoDisc', |
align => 'right', |
align => 'right', |
color => '#FFFFE6', |
color => '#FFFFE6', |
format => '%4.2f', |
format => '%4.2f', |
sortable => 'yes', |
sortable => 'yes', |
graphable => 'yes', |
graphable => 'yes', |
long_title => 'Degree of Discrimination' }, |
long_title => 'Degree of Discrimination', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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## duedate included for research purposes. Commented out most of the time. |
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# { name => 'duedate', |
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# title => 'Due Date', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'yes', |
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# graphable => 'no', |
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# long_title => 'Due date of resource for instructor', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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## opendate included for research purposes. Commented out most of the time. |
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# { name => 'opendate', |
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# title => 'Open Date', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'yes', |
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# graphable => 'no', |
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# long_title => 'date resource became answerable', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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## symb included for research purposes. Commented out most of the time. |
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# { name => 'symb', |
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# title => 'Symb', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'yes', |
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# graphable => 'no', |
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# long_title => 'Unique LON-CAPA identifier for problem', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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## resptypes included for research purposes. Commented out most of the time. |
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# { name => 'resptypes', |
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# title => 'Response Types', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'no', |
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# graphable => 'no', |
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# long_title => 'Response Types used in this problem', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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## maxtries included for research purposes. Commented out most of the time. |
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# { name => 'maxtries', |
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# title => 'Maxtries', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'no', |
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# graphable => 'no', |
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# long_title => 'Maximum number of tries', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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## hinttries included for research purposes. Commented out most of the time. |
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# { name => 'hinttries', |
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# title => 'hinttries', |
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# align => 'left', |
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# color => '#FFFFFF', |
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# sortable => 'no', |
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# graphable => 'no', |
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# long_title => 'Number of tries before a hint appears', |
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# selectable => 'no', |
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# defaultselected => 'yes', |
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# }, |
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# |
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## problem weight for instructor |
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{ name => 'weight', |
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title => 'weight', |
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align => 'right', |
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color => '#FFFFFF', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Problem weight (for instructor)', |
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selectable => 'yes', |
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defaultselected => 'yes', |
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}, |
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); |
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my @SeqFields = ( |
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{ name => 'title', |
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title => 'Sequence', |
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align => 'left', |
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color => '#FFFFE6', |
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special => 'no', |
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sortable => 'no', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'items', |
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title => '#Items', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4d', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Number of Items in Sequence', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'scoremean', |
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title => 'Score Mean', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Mean Sequence Score', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'scorestd', |
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title => 'Score STD', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Standard Deviation of Sequence Scores', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'scoremax', |
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title => 'Score Max', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Maximum Sequence Score', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'scoremin', |
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title => 'Score Min', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Minumum Sequence Score', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'scorecount', |
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title => 'Score N', |
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align => 'right', |
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color => '#FFFFE6', |
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format => '%4d', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Number of Students in score computations', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'countmean', |
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title => 'Count Mean', |
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align => 'right', |
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color => '#FFFFFF', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Mean Sequence Score', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'countstd', |
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title => 'Count STD', |
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align => 'right', |
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color => '#FFFFFF', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Standard Deviation of Sequence Scores', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'countmax', |
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title => 'Count Max', |
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align => 'right', |
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color => '#FFFFFF', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Maximum Number of Correct Problems', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'countmin', |
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title => 'Count Min', |
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align => 'right', |
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color => '#FFFFFF', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Minumum Number of Correct Problems', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'count', |
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title => 'Count N', |
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align => 'right', |
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color => '#FFFFFF', |
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format => '%4d', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'Number of Students in score computations', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
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{ name => 'KR-21', |
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title => 'KR-21', |
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align => 'right', |
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color => '#FFAAAA', |
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format => '%4.2f', |
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sortable => 'no', |
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graphable => 'no', |
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long_title => 'KR-21 reliability statistic', |
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selectable => 'yes', |
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defaultselected => 'no', |
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}, |
); |
); |
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my %SelectedFields; |
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sub parse_field_selection { |
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# |
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# Pull out the defaults |
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if (! defined($ENV{'form.fieldselections'})) { |
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$ENV{'form.fieldselections'} = []; |
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foreach my $field (@Fields) { |
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next if ($field->{'selectable'} ne 'yes'); |
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if ($field->{'defaultselected'} eq 'yes') { |
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push(@{$ENV{'form.fieldselections'}},$field->{'name'}); |
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} |
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} |
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} |
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# |
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# Make sure the data we are plotting is there |
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my %NeededFields; |
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if (exists($ENV{'form.plot'}) && $ENV{'form.plot'} ne '' && |
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$ENV{'form.plot'} ne 'none') { |
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if ($ENV{'form.plot'} eq 'degrees') { |
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$NeededFields{'deg_of_diff'}++; |
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$NeededFields{'deg_of_disc'}++; |
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} elsif ($ENV{'form.plot'} eq 'tries statistics') { |
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$NeededFields{'mean_tries'}++; |
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$NeededFields{'std_tries'}++; |
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$NeededFields{'problem_num'}++; |
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} else { |
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$NeededFields{$ENV{'form.plot'}}++; |
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} |
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} |
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# |
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# This should not happen, but in case it does... |
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if (ref($ENV{'form.fieldselections'}) ne 'ARRAY') { |
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$ENV{'form.fieldselections'} = [$ENV{'form.fieldselections'}]; |
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} |
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# |
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# Set the field data and the selected fields (for easier checking) |
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undef(%SelectedFields); |
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foreach my $field (@Fields) { |
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if ($field->{'selectable'} ne 'yes') { |
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$field->{'selected'} = 'yes'; |
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} else { |
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$field->{'selected'} = 'no'; |
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} |
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if (exists($NeededFields{$field->{'name'}})) { |
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$field->{'selected'} = 'yes'; |
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$SelectedFields{$field->{'name'}}++; |
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} |
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foreach my $selection (@{$ENV{'form.fieldselections'}}) { |
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if ($selection eq $field->{'name'} || $selection eq 'all') { |
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$field->{'selected'} = 'yes'; |
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$SelectedFields{$field->{'name'}}++; |
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} |
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} |
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} |
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# |
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# Always show all the sequence statistics (for now) |
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foreach my $field (@SeqFields) { |
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$field->{'selected'} = 'yes'; |
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} |
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return; |
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} |
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sub field_selection_input { |
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my $Str = '<select name="fieldselections" multiple size="5">'."\n"; |
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$Str .= '<option value="all">all</option>'."\n"; |
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foreach my $field (@Fields) { |
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next if ($field->{'selectable'} ne 'yes'); |
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$Str .= ' <option value="'.$field->{'name'}.'" '; |
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if ($field->{'selected'} eq 'yes') { |
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$Str .= 'selected '; |
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} |
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$Str .= '>'.$field->{'title'}.'</option>'."\n"; |
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} |
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$Str .= "</select>\n"; |
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} |
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############################################### |
############################################### |
############################################### |
############################################### |
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Line 193 select sections, maps, and output.
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Line 602 select sections, maps, and output.
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############################################### |
############################################### |
############################################### |
############################################### |
my @OutputOptions = |
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( |
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{ name => 'grouped by sequence', |
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value => 'HTML problem statistics grouped', |
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description => 'Output statistics for the problem parts.', |
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mode => 'html', |
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show => 'grouped', |
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}, |
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{ name => 'ungrouped', |
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value => 'HTML problem statistics ungrouped', |
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description => 'Output statistics for the problem parts.', |
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mode => 'html', |
|
show => 'ungrouped', |
|
}, |
|
{ name => 'Excel', |
|
value => 'Excel problem statistics', |
|
description => 'Output statistics for the problem parts '. |
|
'in an Excel workbook', |
|
mode => 'excel', |
|
show => 'all', |
|
}, |
|
); |
|
|
|
sub CreateInterface { |
sub CreateInterface { |
|
my ($r) = @_; |
|
# |
|
&parse_field_selection(); |
|
# |
my $Str = ''; |
my $Str = ''; |
$Str .= &Apache::lonhtmlcommon::breadcrumbs |
$Str .= &Apache::lonhtmlcommon::breadcrumbs |
(undef,'Overall Problem Statistics','Statistics_Overall_Key'); |
(undef,'Overall Problem Statistics','Statistics_Overall_Key'); |
Line 225 sub CreateInterface {
|
Line 615 sub CreateInterface {
|
$Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Output').'</b></td>'; |
$Str .= '<td align="center"><b>'.&mt('Statistics').'</b></td>'; |
$Str .= '<td rowspan="2">'. |
$Str .= '<td rowspan="2">'. |
&Apache::lonstathelpers::limit_by_time_form().'</td>'; |
&Apache::lonstathelpers::limit_by_time_form().'</td>'; |
$Str .= '</tr>'."\n"; |
$Str .= '</tr>'."\n"; |
Line 236 sub CreateInterface {
|
Line 626 sub CreateInterface {
|
$Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); |
$Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); |
$Str .= '</td><td align="center">'; |
$Str .= '</td><td align="center">'; |
# |
# |
my $only_seq_with_assessments = sub { |
$Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5); |
my $s=shift; |
$Str .= '</td><td>'.&field_selection_input(); |
if ($s->{'num_assess'} < 1) { |
|
return 0; |
|
} else { |
|
return 1; |
|
} |
|
}; |
|
$Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, |
|
$only_seq_with_assessments); |
|
$Str .= '</td><td>'."\n"; |
|
my ($html,$outputmode,$show) = |
|
&Apache::lonstatistics::CreateAndParseOutputSelector( |
|
'statsoutputmode', |
|
'HTML problem statistics grouped', |
|
@OutputOptions); |
|
$Str .= $html; |
|
$Str .= '</td></tr>'."\n"; |
$Str .= '</td></tr>'."\n"; |
$Str .= '</table>'."\n"; |
$Str .= '</table>'."\n"; |
|
# |
|
$Str .= '<p>'.&mt('Status: [_1]', |
|
'<input type="text" '. |
|
'name="stats_status" size="60" value="" />' |
|
). |
|
'</nobr></p>'; |
|
# |
$Str .= '<input type="submit" name="GenerateStatistics" value="'. |
$Str .= '<input type="submit" name="GenerateStatistics" value="'. |
&mt('Generate Statistics').'" />'; |
&mt('Generate Statistics').'" />'; |
$Str .= ' 'x5; |
$Str .= ' 'x5; |
$Str .= '<input type="submit" name="ClearCache" value="'. |
$Str .= 'Plot '.&plot_dropdown().(' 'x10); |
&mt('Clear Caches').'" />'; |
# |
$Str .= ' 'x5; |
return $Str; |
return ($Str,$outputmode,$show); |
|
} |
} |
|
|
############################################### |
############################################### |
Line 277 Main interface to problem statistics.
|
Line 658 Main interface to problem statistics.
|
|
|
############################################### |
############################################### |
############################################### |
############################################### |
|
my $navmap; |
|
my @sequences; |
|
|
sub BuildProblemStatisticsPage { |
sub BuildProblemStatisticsPage { |
my ($r,$c)=@_; |
my ($r,$c)=@_; |
|
undef($navmap); |
|
undef(@sequences); |
# |
# |
my %Saveable_Parameters = ('Status' => 'scalar', |
my %Saveable_Parameters = ('Status' => 'scalar', |
'statsoutputmode' => 'scalar', |
'statsoutputmode' => 'scalar', |
'Section' => 'array', |
'Section' => 'array', |
'StudentData' => 'array', |
'StudentData' => 'array', |
'Maps' => 'array'); |
'Maps' => 'array', |
|
'fieldselections'=> 'array'); |
&Apache::loncommon::store_course_settings('statistics', |
&Apache::loncommon::store_course_settings('statistics', |
\%Saveable_Parameters); |
\%Saveable_Parameters); |
&Apache::loncommon::restore_course_settings('statistics', |
&Apache::loncommon::restore_course_settings('statistics', |
Line 292 sub BuildProblemStatisticsPage {
|
Line 679 sub BuildProblemStatisticsPage {
|
# |
# |
&Apache::lonstatistics::PrepareClasslist(); |
&Apache::lonstatistics::PrepareClasslist(); |
# |
# |
&Apache::loncoursedata::populate_weight_table(); |
# Clear the package variables |
|
undef(@StatsArray); |
|
undef(%SeqStat); |
# |
# |
my ($interface,$output_mode,$show) = &CreateInterface(); |
# Finally let the user know we are here |
|
my $interface = &CreateInterface($r); |
$r->print($interface); |
$r->print($interface); |
$r->print('<input type="hidden" name="statsfirstcall" value="no" />'); |
|
$r->print('<input type="hidden" name="sortby" value="'.$ENV{'form.sortby'}. |
$r->print('<input type="hidden" name="sortby" value="'.$ENV{'form.sortby'}. |
'" />'); |
'" />'); |
$r->print('<input type="hidden" name="plot" value="" />'); |
# |
if (! exists($ENV{'form.statsfirstcall'})) { |
my @CacheButtonHTML = |
|
&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); |
|
my $Str; |
|
foreach my $html (@CacheButtonHTML) { |
|
$Str.=$html.(' 'x5); |
|
} |
|
# |
|
$r->print($Str); |
|
if (! exists($ENV{'form.firstrun'})) { |
|
$r->print('<h3>'. |
|
&mt('Press "Generate Statistics" when you are ready.'). |
|
'</h3><p>'. |
|
&mt('It may take some time to update the student data '. |
|
'for the first analysis. Future analysis this session '. |
|
' will not have this delay.'). |
|
'</p>'); |
return; |
return; |
} |
} |
|
$r->rflush(); |
# |
# |
&Apache::lonstatistics::Gather_Student_Data($r); |
# This probably does not need to be done each time we are called, but |
# |
# it does not slow things down noticably. |
|
&Apache::loncoursedata::populate_weight_table(); |
# |
# |
if ($output_mode eq 'html') { |
($navmap,@sequences) = |
$r->print("<h2>". |
&Apache::lonstatistics::selected_sequences_with_assessments(); |
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}. |
if (! ref($navmap)) { |
"</h2>\n"); |
$r->print('<h1>'.&mt('A course-wide error occured.').'</h1>'. |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
'<h3>'.$navmap.'</h3>'); |
if (defined($starttime) || defined($endtime)) { |
return; |
# Inform the user what the time limits on the data are. |
} |
$r->print('<h3>'.&mt('Statistics on submissions from [_1] to [_2]', |
if (exists($ENV{'form.Excel'})) { |
&Apache::lonlocal::locallocaltime($starttime), |
$r->print('<h4>'. |
&Apache::lonlocal::locallocaltime($endtime)). |
&Apache::lonstatistics::section_and_enrollment_description(). |
'</h3>'); |
'</h4>'); |
} |
&Excel_output($r); |
$r->print("<h3>".&mt('Compiled on [_1]', |
} else { |
&Apache::lonlocal::locallocaltime(time))."</h3>"); |
$r->print('<input type="submit" name="Excel" value="'. |
|
&mt('Produce Excel Output').'" />'.' 'x5); |
$r->rflush(); |
$r->rflush(); |
if ($show eq 'grouped') { |
$r->print('<h4>'. |
&output_html_grouped_by_sequence($r); |
&Apache::lonstatistics::section_and_enrollment_description(). |
} elsif ($show eq 'ungrouped') { |
'</h4>'); |
&output_html_ungrouped($r); |
my $count = 0; |
} |
foreach my $seq (@sequences) { |
} elsif ($output_mode eq 'excel') { |
my @resources = |
$r->print('<h2>'.&mt('Preparing Excel Spreadsheet').'</h2>'); |
&Apache::lonstathelpers::get_resources($navmap,$seq); |
&output_excel($r); |
$count += scalar(@resources); |
} else { |
} |
$r->print('<h1>'.&mt('Not implemented').'</h1>'); |
if ($count > 10) { |
|
$r->print('<h2>'. |
|
&mt('Compiling statistics for [_1] problems',$count). |
|
'</h2>'); |
|
if ($count > 30) { |
|
$r->print('<h3>'.&mt('This will take some time.').'</h3>'); |
|
} |
|
$r->rflush(); |
|
} |
|
# |
|
my $sortby = $ENV{'form.sortby'}; |
|
$sortby = 'container' if (! defined($sortby) || $sortby =~ /^\s*$/); |
|
my $plot = $ENV{'form.plot'}; |
|
if ($plot eq '' || $plot eq 'none') { |
|
undef($plot); |
|
} |
|
if ($sortby eq 'container' && ! defined($plot)) { |
|
&output_sequence_statistics($r); |
|
&output_html_by_sequence($r); |
|
} else { |
|
if (defined($plot)) { |
|
&make_plot($r,$plot); |
|
} |
|
&output_html_stats($r); |
|
&output_sequence_statistics($r); |
|
} |
} |
} |
return; |
return; |
} |
} |
|
|
############################################### |
sub output_sequence_statistics { |
############################################### |
my ($r) = @_; |
|
my $c=$r->connection(); |
|
$r->print('<h2>'.&mt('Sequence Statistics'). |
|
&Apache::loncommon::help_open_topic('Statistics_Sequence'). |
|
'</h2>'); |
|
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n". |
|
'<table border="0" cellpadding="3">'."\n". |
|
'<tr bgcolor="#FFFFE6">'); |
|
$r->print(&sequence_html_header()); |
|
foreach my $seq (@sequences) { |
|
last if ($c->aborted); |
|
&compute_sequence_statistics($seq); |
|
$r->print(&sequence_html_output($seq)); |
|
} |
|
$r->print('</table>'); |
|
$r->print('</table>'); |
|
$r->rflush(); |
|
return; |
|
} |
|
|
=pod |
|
|
|
=item &output_html_grouped_by_sequence() |
########################################################## |
|
########################################################## |
|
## |
|
## HTML output routines |
|
## |
|
########################################################## |
|
########################################################## |
|
sub output_html_by_sequence { |
|
my ($r) = @_; |
|
my $c = $r->connection(); |
|
$r->print(&html_preamble()); |
|
# |
|
foreach my $seq (@sequences) { |
|
last if ($c->aborted); |
|
$r->print("<h3>".$seq->compTitle."</h3>". |
|
'<table border="0"><tr><td bgcolor="#777777">'."\n". |
|
'<table border="0" cellpadding="3">'."\n". |
|
'<tr bgcolor="#FFFFE6">'. |
|
&statistics_table_header('no container')."</tr>\n"); |
|
my @Data = &compute_statistics_on_sequence($seq); |
|
foreach my $data (@Data) { |
|
$r->print('<tr>'.&statistics_html_table_data($data, |
|
'no container'). |
|
"</tr>\n"); |
|
} |
|
$r->print('</table>'."\n".'</table>'."\n"); |
|
$r->rflush(); |
|
} |
|
return; |
|
} |
|
|
Presents the statistics data as an html table organized by the order |
sub output_html_stats { |
the assessments appear in the course. |
my ($r)=@_; |
|
&compute_all_statistics($r); |
|
$r->print(&html_preamble()); |
|
&sort_data($ENV{'form.sortby'}); |
|
# |
|
my $count=0; |
|
foreach my $data (@StatsArray) { |
|
if ($count++ % 50 == 0) { |
|
$r->print("</table>\n</table>\n"); |
|
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n". |
|
'<table border="0" cellpadding="3">'."\n". |
|
'<tr bgcolor="#FFFFE6">'. |
|
'<tr bgcolor="#FFFFE6">'. |
|
&statistics_table_header(). |
|
"</tr>\n"); |
|
} |
|
$r->print('<tr>'.&statistics_html_table_data($data)."</tr>\n"); |
|
} |
|
$r->print("</table>\n</table>\n"); |
|
return; |
|
} |
|
|
|
sub html_preamble { |
|
my $Str=''; |
|
$Str .= "<h2>". |
|
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}. |
|
"</h2>\n"; |
|
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
|
if (defined($starttime) || defined($endtime)) { |
|
# Inform the user what the time limits on the data are. |
|
$Str .= '<h3>'.&mt('Statistics on submissions from [_1] to [_2]', |
|
&Apache::lonlocal::locallocaltime($starttime), |
|
&Apache::lonlocal::locallocaltime($endtime) |
|
).'</h3>'; |
|
} |
|
$Str .= "<h3>".&mt('Compiled on [_1]', |
|
&Apache::lonlocal::locallocaltime(time))."</h3>"; |
|
return $Str; |
|
} |
|
|
=cut |
|
|
|
############################################### |
############################################### |
############################################### |
############################################### |
sub output_html_grouped_by_sequence { |
## |
my ($r) = @_; |
## Misc HTML output routines |
my $problem_num = 0; |
## |
#$r->print(&ProblemStatisticsLegend()); |
############################################### |
foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()) { |
############################################### |
next if ($sequence->{'num_assess'}<1); |
sub statistics_html_table_data { |
$r->print("<h3>".$sequence->{'title'}."</h3>"); |
my ($data,$options) = @_; |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
my $row = ''; |
$r->print('<table border="0" cellpadding="3">'."\n"); |
foreach my $field (@Fields) { |
$r->print('<tr bgcolor="#FFFFE6">'); |
next if ($options =~ /no $field->{'name'}/); |
my $Str = &statistics_table_header('no container no plots'); |
next if ($field->{'selected'} ne 'yes'); |
$r->print('<tr bgcolor="#FFFFE6">'.$Str."</tr>\n"); |
$row .= '<td bgcolor="'.$field->{'color'}.'"'; |
foreach my $resource (@{$sequence->{'contents'}}) { |
if (exists($field->{'align'})) { |
next if ($resource->{'type'} ne 'assessment'); |
$row .= ' align="'.$field->{'align'}.'"'; |
foreach my $part (@{$resource->{'parts'}}) { |
|
$problem_num++; |
|
my $data = &get_statistics($sequence,$resource,$part, |
|
$problem_num); |
|
my $option = ''; |
|
$r->print('<tr>'.&statistics_html_table_data($data, |
|
'no container'). |
|
"</tr>\n"); |
|
} |
} |
|
$row .= '>'; |
|
if (exists($field->{'special'}) && $field->{'special'} eq 'link') { |
|
$row .= '<a href="'.$data->{$field->{'name'}.'.link'}.'">'; |
} |
} |
$r->print("</table>\n"); |
if (exists($field->{'format'}) && $data->{$field->{'name'}} !~ /[A-Z]/i) { |
$r->print("</td></tr></table>\n"); |
$row .= sprintf($field->{'format'},$data->{$field->{'name'}}); |
$r->rflush(); |
} else { |
|
$row .= $data->{$field->{'name'}}; |
|
} |
|
if (exists($field->{'special'}) && $field->{'special'} eq 'link') { |
|
$row.= '</a>'; |
|
} |
|
$row .= '</td>'; |
} |
} |
# |
return $row; |
return; |
|
} |
} |
|
|
############################################### |
sub statistics_table_header { |
############################################### |
my ($options) = @_; |
|
my $header_row; |
|
foreach my $field (@Fields) { |
|
next if ($options =~ /no $field->{'name'}/); |
|
next if ($field->{'selected'} ne 'yes'); |
|
$header_row .= '<th>'; |
|
if (exists($field->{'sortable'}) && $field->{'sortable'} eq 'yes') { |
|
$header_row .= '<a href="javascript:'. |
|
'document.Statistics.sortby.value='."'".$field->{'name'}."'". |
|
';document.Statistics.submit();">'; |
|
} |
|
$header_row .= &mt($field->{'title'}); |
|
if ($options =~ /sortable/) { |
|
$header_row.= '</a>'; |
|
} |
|
if ($options !~ /no plots/ && |
|
exists($field->{'graphable'}) && |
|
$field->{'graphable'} eq 'yes') { |
|
$header_row.=' ('; |
|
$header_row .= '<a href="javascript:'. |
|
"document.Statistics.plot.value='$field->{'name'}'". |
|
';document.Statistics.submit();">'; |
|
$header_row .= &mt('plot').'</a>)'; |
|
} |
|
$header_row .= '</th>'; |
|
} |
|
return $header_row; |
|
} |
|
|
=pod |
sub sequence_html_header { |
|
my $Str .= '<tr>'; |
|
foreach my $field (@SeqFields) { |
|
# next if ($field->{'selected'} ne 'yes'); |
|
$Str .= '<th bgcolor="'.$field->{'color'}.'"'; |
|
$Str .= '>'.$field->{'title'}.'</th>'; |
|
} |
|
$Str .= '</tr>'; |
|
return $Str; |
|
} |
|
|
=item &output_html_ungrouped() |
|
|
|
Presents the statistics data in a single html table which can be sorted by |
sub sequence_html_output { |
different columns. |
my ($seq) = @_; |
|
my $data = $SeqStat{$seq->symb}; |
|
my $row = '<tr>'; |
|
foreach my $field (@SeqFields) { |
|
next if ($field->{'selected'} ne 'yes'); |
|
$row .= '<td bgcolor="'.$field->{'color'}.'"'; |
|
if (exists($field->{'align'})) { |
|
$row .= ' align="'.$field->{'align'}.'"'; |
|
} |
|
$row .= '>'; |
|
if (exists($field->{'format'})) { |
|
$row .= sprintf($field->{'format'},$data->{$field->{'name'}}); |
|
} else { |
|
$row .= $data->{$field->{'name'}}; |
|
} |
|
$row .= '</td>'; |
|
} |
|
$row .= '</tr>'."\n"; |
|
return $row; |
|
} |
|
|
=cut |
#################################################### |
|
#################################################### |
|
## |
|
## Plotting Routines |
|
## |
|
#################################################### |
|
#################################################### |
|
sub make_plot { |
|
my ($r,$plot) = @_; |
|
&compute_all_statistics($r); |
|
&sort_data($ENV{'form.sortby'}); |
|
if ($plot eq 'degrees') { |
|
°rees_plot($r); |
|
} elsif ($plot eq 'tries statistics') { |
|
&tries_data_plot($r); |
|
} else { |
|
&make_single_stat_plot($r,$plot); |
|
} |
|
return; |
|
} |
|
|
############################################### |
sub make_single_stat_plot { |
############################################### |
my ($r,$datafield) = @_; |
sub output_html_ungrouped { |
|
my ($r,$option) = @_; |
|
# |
# |
if (exists($ENV{'form.plot'}) && $ENV{'form.plot'} ne '') { |
my $title; my $yaxis; |
&plot_statistics($r,$ENV{'form.plot'}); |
foreach my $field (@Fields) { |
|
next if ($field->{'name'} ne $datafield); |
|
$title = $field->{'long_title'}; |
|
$yaxis = $field->{'title'}; |
|
last; |
|
} |
|
if ($title eq '' || $yaxis eq '') { |
|
# datafield is something we do not know enough about to plot |
|
$r->print('<h3>'. |
|
&mt('Unable to plot the requested statistic.'). |
|
'</h3>'); |
|
return; |
} |
} |
# |
# |
my $problem_num = 0; |
# Build up the data sets to plot |
my $show_container = 0; |
my @Labels; |
my $show_part = 0; |
my @Data; |
#$r->print(&ProblemStatisticsLegend()); |
my $max = 1; |
my $sortby = undef; |
foreach my $data (@StatsArray) { |
foreach my $field (@Fields) { |
push(@Labels,$data->{'problem_num'}); |
if ($ENV{'form.sortby'} eq $field->{'name'}) { |
push(@Data,$data->{$datafield}); |
$sortby = $field->{'name'}; |
if ($data->{$datafield}>$max) { |
|
$max = $data->{$datafield}; |
|
} |
|
} |
|
foreach (1,2,3,4,5,10,15,20,25,40,50,75,100,150,200,250,300,500,600,750, |
|
1000,1500,2000,2500,3000,3500,4000,5000,7500,10000,15000,20000) { |
|
if ($max <= $_) { |
|
$max = $_; |
|
last; |
} |
} |
} |
} |
if (! defined($sortby) || $sortby eq '' || $sortby eq 'problem_num') { |
if ($max > 20000) { |
$sortby = 'container'; |
$max = 10000*(int($max/10000)+1); |
} |
} |
# If there is more than one sequence, list their titles |
# |
my @Sequences = &Apache::lonstatistics::Sequences_with_Assess(); |
$r->print("<p>".&Apache::loncommon::DrawBarGraph($title, |
if (@Sequences < 1) { |
'Problem Number', |
$option .= ' no container'; |
$yaxis, |
} |
$max, |
# |
undef, # colors |
# Compile the data |
\@Labels, |
my @Statsarray; |
\@Data)."</p>\n"); |
foreach my $sequence (@Sequences) { |
return; |
next if ($sequence->{'num_assess'}<1); |
} |
foreach my $resource (@{$sequence->{'contents'}}) { |
|
next if ($resource->{'type'} ne 'assessment'); |
sub degrees_plot { |
foreach my $part (@{$resource->{'parts'}}) { |
my ($r)=@_; |
$problem_num++; |
my $count = scalar(@StatsArray); |
my $data = &get_statistics($sequence,$resource,$part, |
my $width = 50 + 10*$count; |
$problem_num); |
$width = 300 if ($width < 300); |
$show_part = 1 if ($part ne '0'); |
my $height = 300; |
# |
my $plot = ''; |
push (@Statsarray,$data); |
my $ymax = 0; |
} |
my $ymin = 0; |
|
my @Disc; my @Diff; my @Labels; |
|
foreach my $data (@StatsArray) { |
|
push(@Labels,$data->{'problem_num'}); |
|
my $disc = $data->{'deg_of_disc'}; |
|
my $diff = $data->{'deg_of_diff'}; |
|
push(@Disc,$disc); |
|
push(@Diff,$diff); |
|
# |
|
$ymin = $disc if ($ymin > $disc); |
|
$ymin = $diff if ($ymin > $diff); |
|
$ymax = $disc if ($ymax < $disc); |
|
$ymax = $diff if ($ymax < $diff); |
|
} |
|
# |
|
# Make sure we show relevant information. |
|
if ($ymin < 0) { |
|
if (abs($ymin) < 0.05) { |
|
$ymin = 0; |
|
} else { |
|
$ymin = -1; |
|
} |
|
} |
|
if ($ymax > 0) { |
|
if (abs($ymax) < 0.05) { |
|
$ymax = 0; |
|
} else { |
|
$ymax = 1; |
} |
} |
} |
} |
# |
# |
# Sort the data |
my $xmax = $Labels[-1]; |
my @OutputOrder; |
if ($xmax > 50) { |
if ($sortby eq 'container') { |
if ($xmax % 10 != 0) { |
@OutputOrder = @Statsarray; |
$xmax = 10 * (int($xmax/10)+1); |
|
} |
} else { |
} else { |
# $sortby is already defined, so we can charge ahead |
if ($xmax % 5 != 0) { |
if ($sortby =~ /^(title|part)$/i) { |
$xmax = 5 * (int($xmax/5)+1); |
# Alpha comparison |
|
@OutputOrder = sort { |
|
lc($a->{$sortby}) cmp lc($b->{$sortby}) || |
|
lc($a->{'title'}) cmp lc($b->{'title'}) || |
|
lc($a->{'part'}) cmp lc($b->{'part'}); |
|
} @Statsarray; |
|
} else { |
|
# Numerical comparison |
|
@OutputOrder = sort { |
|
my $retvalue = 0; |
|
if ($b->{$sortby} eq 'nan') { |
|
if ($a->{$sortby} ne 'nan') { |
|
$retvalue = -1; |
|
} else { |
|
$retvalue = 0; |
|
} |
|
} |
|
if ($a->{$sortby} eq 'nan') { |
|
if ($b->{$sortby} ne 'nan') { |
|
$retvalue = 1; |
|
} |
|
} |
|
if ($retvalue eq '0') { |
|
$retvalue = $b->{$sortby} <=> $a->{$sortby} || |
|
lc($a->{'title'}) <=> lc($b->{'title'}) || |
|
lc($a->{'part'}) <=> lc($b->{'part'}); |
|
} |
|
$retvalue; |
|
} @Statsarray; |
|
} |
} |
} |
} |
$option .= 'no part' if (! $show_part); |
|
my $num_output = 0; |
|
# |
# |
# output the headers |
my $discdata .= '<data>'.join(',',@Labels).'</data>'.$/. |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
'<data>'.join(',',@Disc).'</data>'.$/; |
$r->print('<table border="0" cellpadding="3">'."\n"); |
# |
my $Str = &statistics_table_header($option.' sortable'); |
my $diffdata .= '<data>'.join(',',@Labels).'</data>'.$/. |
$r->print('<tr bgcolor="#FFFFE6">'.$Str."</tr>\n"); |
'<data>'.join(',',@Diff).'</data>'.$/; |
# |
# |
foreach my $rowdata (@OutputOrder) { |
my $title = 'Degree of Discrimination\nand Degree of Difficulty'; |
$num_output++; |
if ($xmax > 50) { |
if ($num_output % 25 == 0) { |
$title = 'Degree of Discrimination and Degree of Difficulty'; |
$r->print("</table>\n</td></tr></table>\n"); |
} |
# |
# |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
$plot=<<"END"; |
$r->print('<table border="0" cellpadding="3">'."\n"); |
<gnuplot |
my $Str = &statistics_table_header($option.' sortable'); |
texfont="10" |
$r->print('<tr bgcolor="#FFFFE6">'.$Str."</tr>\n"); |
fgcolor="x000000" |
$r->rflush(); |
plottype="Cartesian" |
|
font="large" |
|
grid="on" |
|
align="center" |
|
border="on" |
|
transparent="on" |
|
alttag="Degree of Discrimination and Degree of Difficulty Plot" |
|
samples="100" |
|
bgcolor="xffffff" |
|
height="$height" |
|
width="$width"> |
|
<key |
|
pos="top right" |
|
title="" |
|
box="off" /> |
|
<title>$title</title> |
|
<axis xmin="0" ymin="$ymin" xmax="$xmax" ymax="$ymax" color="x000000" /> |
|
<xlabel>Problem Number</xlabel> |
|
<curve |
|
linestyle="linespoints" |
|
name="DoDisc" |
|
pointtype="0" |
|
color="x000000"> |
|
$discdata |
|
</curve> |
|
<curve |
|
linestyle="linespoints" |
|
name="DoDiff" |
|
pointtype="0" |
|
color="xFF0000"> |
|
$diffdata |
|
</curve> |
|
</gnuplot> |
|
END |
|
my $plotresult = |
|
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
|
$r->print($plotresult); |
|
return; |
|
} |
|
|
|
sub tries_data_plot { |
|
my ($r)=@_; |
|
my $count = scalar(@StatsArray); |
|
my $width = 50 + 10*$count; |
|
$width = 300 if ($width < 300); |
|
my $height = 300; |
|
my $plot = ''; |
|
my @STD; my @Mean; my @Max; my @Min; |
|
my @Labels; |
|
my $ymax = 5; |
|
foreach my $data (@StatsArray) { |
|
my $max = $data->{'mean_tries'} + $data->{'std_tries'}; |
|
$ymax = $max if ($ymax < $max); |
|
$ymax = $max if ($ymax < $max); |
|
push(@Labels,$data->{'problem_num'}); |
|
push(@STD,$data->{'std_tries'}); |
|
push(@Mean,$data->{'mean_tries'}); |
|
} |
|
# |
|
# Make sure we show relevant information. |
|
my $xmax = $Labels[-1]; |
|
if ($xmax > 50) { |
|
if ($xmax % 10 != 0) { |
|
$xmax = 10 * (int($xmax/10)+1); |
|
} |
|
} else { |
|
if ($xmax % 5 != 0) { |
|
$xmax = 5 * (int($xmax/5)+1); |
} |
} |
$r->print('<tr>'.&statistics_html_table_data($rowdata,$option). |
|
"</tr>\n"); |
|
} |
} |
$r->print("</table>\n"); |
$ymax = int($ymax)+1+2; |
$r->print("</td></tr></table>\n"); |
|
$r->rflush(); |
|
# |
# |
|
my $std_data .= '<data>'.join(',',@Labels).'</data>'.$/. |
|
'<data>'.join(',',@Mean).'</data>'.$/; |
|
# |
|
my $std_error_data .= '<data>'.join(',',@Labels).'</data>'.$/. |
|
'<data>'.join(',',@Mean).'</data>'.$/. |
|
'<data>'.join(',',@STD).'</data>'.$/; |
|
# |
|
my $title = 'Mean and S.D. of Tries'; |
|
if ($xmax > 25) { |
|
$title = 'Mean and Standard Deviation of Tries'; |
|
} |
|
# |
|
$plot=<<"END"; |
|
<gnuplot |
|
texfont="10" |
|
fgcolor="x000000" |
|
plottype="Cartesian" |
|
font="large" |
|
grid="on" |
|
align="center" |
|
border="on" |
|
transparent="on" |
|
alttag="Mean and S.D of Tries Plot" |
|
samples="100" |
|
bgcolor="xffffff" |
|
height="$height" |
|
width="$width"> |
|
<title>$title</title> |
|
<axis xmin="0" ymin="0" xmax="$xmax" ymax="$ymax" color="x000000" /> |
|
<xlabel>Problem Number</xlabel> |
|
<ylabel>Number of Tries</ylabel> |
|
<curve |
|
linestyle="yerrorbars" |
|
name="S.D. Tries" |
|
pointtype="1" |
|
color="x666666"> |
|
$std_error_data |
|
</curve> |
|
<curve |
|
linestyle="points" |
|
name="Mean Tries" |
|
pointtype="1" |
|
color="xCC4444"> |
|
$std_data |
|
</curve> |
|
</gnuplot> |
|
END |
|
my $plotresult = |
|
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
|
$r->print($plotresult); |
return; |
return; |
} |
} |
|
|
|
sub plot_dropdown { |
|
my $current = ''; |
|
# |
|
if (defined($ENV{'form.plot'})) { |
|
$current = $ENV{'form.plot'}; |
|
} |
|
# |
|
my @Additional_Plots = ( |
|
{ graphable=>'yes', |
|
name => 'degrees', |
|
title => 'Difficulty Indexes' }, |
|
{ graphable=>'yes', |
|
name => 'tries statistics', |
|
title => 'Tries Statistics' }); |
|
# |
|
my $Str= "\n".'<select name="plot" size="1">'; |
|
$Str .= '<option name="none"></option>'."\n"; |
|
$Str .= '<option name="none2">none</option>'."\n"; |
|
foreach my $field (@Additional_Plots,@Fields) { |
|
if (! exists($field->{'graphable'}) || |
|
$field->{'graphable'} ne 'yes') { |
|
next; |
|
} |
|
$Str .= '<option value="'.$field->{'name'}.'"'; |
|
if ($field->{'name'} eq $current) { |
|
$Str .= ' selected '; |
|
} |
|
$Str.= '>'.&mt($field->{'title'}).'</option>'."\n"; |
|
} |
|
$Str .= '</select>'."\n"; |
|
return $Str; |
|
} |
|
|
############################################### |
############################################### |
############################################### |
############################################### |
|
## |
=pod |
## Excel output routines |
|
## |
=item &output_excel() |
|
|
|
Presents the statistical data in an Excel 95 compatable spreadsheet file. |
|
|
|
=cut |
|
|
|
############################################### |
############################################### |
############################################### |
############################################### |
sub output_excel { |
sub Excel_output { |
my ($r) = @_; |
my ($r) = @_; |
my $filename = '/prtspool/'. |
$r->print('<h2>'.&mt('Preparing Excel Spreadsheet').'</h2>'); |
$ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. |
## |
time.'_'.rand(1000000000).'.xls'; |
## Compute the statistics |
|
&compute_all_statistics($r); |
|
my $c = $r->connection; |
|
return if ($c->aborted()); |
# |
# |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
# |
## |
my $excel_workbook = undef; |
## Create the excel workbook |
my $excel_sheet = undef; |
my ($excel_workbook,$filename,$format) = |
# |
&Apache::loncommon::create_workbook($r); |
my $rows_output = 0; |
return if (! defined($excel_workbook)); |
my $cols_output = 0; |
|
# |
|
# Create sheet |
|
$excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename); |
|
# |
|
# Check for errors |
|
if (! defined($excel_workbook)) { |
|
$r->log_error("Error creating excel spreadsheet $filename: $!"); |
|
$r->print(&mt("Problems creating new Excel file. ". |
|
"This error has been logged. ". |
|
"Please alert your LON-CAPA administrator.")); |
|
return ; |
|
} |
|
# |
|
# The excel spreadsheet stores temporary data in files, then put them |
|
# together. If needed we should be able to disable this (memory only). |
|
# The temporary directory must be specified before calling 'addworksheet'. |
|
# File::Temp is used to determine the temporary directory. |
|
$excel_workbook->set_tempdir($Apache::lonnet::tmpdir); |
|
# |
# |
# Add a worksheet |
# Add a worksheet |
my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
if (length($sheetname) > 31) { |
if (length($sheetname) > 31) { |
$sheetname = substr($sheetname,0,31); |
$sheetname = substr($sheetname,0,31); |
} |
} |
$excel_sheet = $excel_workbook->addworksheet( |
my $excel_sheet = $excel_workbook->addworksheet( |
&Apache::loncommon::clean_excel_name($sheetname) |
&Apache::loncommon::clean_excel_name($sheetname)); |
); |
## |
|
## Begin creating excel sheet |
|
## |
|
my ($rows_output,$cols_output) = (0,0); |
# |
# |
# Put the course description in the header |
# Put the course description in the header |
$excel_sheet->write($rows_output,$cols_output++, |
$excel_sheet->write($rows_output,$cols_output++, |
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}); |
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}, |
|
$format->{'h1'}); |
$cols_output += 3; |
$cols_output += 3; |
# |
# |
# Put a description of the sections listed |
# Put a description of the sections listed |
my $sectionstring = ''; |
my $sectionstring = ''; |
my @Sections = @Apache::lonstatistics::SelectedSections; |
$excel_sheet->write($rows_output,$cols_output++, |
if (scalar(@Sections) > 1) { |
&Apache::lonstatistics::section_and_enrollment_description('plaintext'), |
if (scalar(@Sections) > 2) { |
$format->{'h3'}); |
my $last = pop(@Sections); |
$cols_output += scalar(&Apache::lonstatistics::get_selected_sections()); |
$sectionstring = "Sections ".join(', ',@Sections).', and '.$last; |
|
} else { |
|
$sectionstring = "Sections ".join(' and ',@Sections); |
|
} |
|
} else { |
|
if ($Sections[0] eq 'all') { |
|
$sectionstring = "All sections"; |
|
} else { |
|
$sectionstring = "Section ".$Sections[0]; |
|
} |
|
} |
|
$excel_sheet->write($rows_output,$cols_output++,$sectionstring); |
|
$cols_output += scalar(@Sections); |
|
# |
# |
# Time restrictions |
# Time restrictions |
my $time_string; |
my $time_string; |
Line 600 sub output_excel {
|
Line 1317 sub output_excel {
|
# See note above about lonlocal:locallocaltime |
# See note above about lonlocal:locallocaltime |
$time_string .= 'Data collected before '.localtime($endtime).'.'; |
$time_string .= 'Data collected before '.localtime($endtime).'.'; |
} |
} |
|
if (defined($time_string)) { |
|
$excel_sheet->write($rows_output,$cols_output++,$time_string); |
|
$cols_output+= 5; |
|
} |
# |
# |
# Put the date in there too |
# Put the date in there too |
$excel_sheet->write($rows_output,$cols_output++, |
$excel_sheet->write($rows_output,$cols_output++, |
Line 608 sub output_excel {
|
Line 1328 sub output_excel {
|
# |
# |
$rows_output++; |
$rows_output++; |
$cols_output=0; |
$cols_output=0; |
# |
## |
# Long Headersheaders |
## Sequence Statistics |
foreach my $field (@Fields) { |
## |
next if ($field->{'name'} eq 'problem_num'); |
&write_headers($excel_sheet,$format,\$rows_output,\$cols_output, |
if (exists($field->{'long_title'})) { |
\@SeqFields); |
|
foreach my $seq (@sequences) { |
|
my $data = $SeqStat{$seq->symb}; |
|
$cols_output=0; |
|
foreach my $field (@SeqFields) { |
|
next if ($field->{'selected'} ne 'yes'); |
|
my $fieldformat = undef; |
|
if (exists($field->{'excel_format'})) { |
|
$fieldformat = $format->{$field->{'excel_format'}}; |
|
} |
$excel_sheet->write($rows_output,$cols_output++, |
$excel_sheet->write($rows_output,$cols_output++, |
$field->{'long_title'}); |
$data->{$field->{'name'}},$fieldformat); |
} else { |
|
$excel_sheet->write($rows_output,$cols_output++,''); |
|
} |
} |
|
$rows_output++; |
|
$cols_output=0; |
} |
} |
|
## |
|
## Resource Statistics |
|
## |
$rows_output++; |
$rows_output++; |
$cols_output=0; |
$cols_output=0; |
# Brief headers |
&write_headers($excel_sheet,$format,\$rows_output,\$cols_output, |
foreach my $field (@Fields) { |
\@Fields); |
next if ($field->{'name'} eq 'problem_num'); |
|
# Use english for excel as I am not sure how well excel handles |
|
# other character sets.... |
|
$excel_sheet->write($rows_output,$cols_output++,$field->{'title'}); |
|
} |
|
$rows_output++; |
|
# |
# |
# Write the data |
foreach my $data (@StatsArray) { |
my $problem_num=0; |
$cols_output=0; |
foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()) { |
foreach my $field (@Fields) { |
next if ($sequence->{'num_assess'}<1); |
next if ($field->{'selected'} ne 'yes'); |
foreach my $resource (@{$sequence->{'contents'}}) { |
next if ($field->{'name'} eq 'problem_num'); |
next if ($resource->{'type'} ne 'assessment'); |
my $fieldformat = undef; |
foreach my $part (@{$resource->{'parts'}}) { |
if (exists($field->{'excel_format'})) { |
$cols_output=0; |
$fieldformat = $format->{$field->{'excel_format'}}; |
$problem_num++; |
|
my $data = &get_statistics($sequence,$resource,$part, |
|
$problem_num); |
|
# |
|
if (!defined($part) || $part eq '') { |
|
$part = ' '; |
|
} |
|
foreach my $field (@Fields) { |
|
next if ($field->{'name'} eq 'problem_num'); |
|
$excel_sheet->write($rows_output,$cols_output++, |
|
$data->{$field->{'name'}}); |
|
} |
|
$rows_output++; |
|
} |
} |
|
$excel_sheet->write($rows_output,$cols_output++, |
|
$data->{$field->{'name'}},$fieldformat); |
} |
} |
|
$rows_output++; |
|
$cols_output=0; |
} |
} |
# |
# |
# Write the excel file |
|
$excel_workbook->close(); |
$excel_workbook->close(); |
|
# |
# Tell the user where to get their excel file |
# Tell the user where to get their excel file |
$r->print('<br />'. |
$r->print('<br />'. |
'<a href="'.$filename.'">'. |
'<a href="'.$filename.'">'. |
Line 665 sub output_excel {
|
Line 1382 sub output_excel {
|
return; |
return; |
} |
} |
|
|
############################################### |
## |
############################################### |
## &write_headers |
|
## |
=pod |
sub write_headers { |
|
my ($excel_sheet,$format,$rows_output,$cols_output,$Fields) = @_; |
=item &statistics_html_table_data() |
## |
|
## First the long titles |
Help function used to format the rows for HTML table output. |
foreach my $field (@{$Fields}) { |
|
next if ($field->{'name'} eq 'problem_num'); |
=cut |
next if ($field->{'selected'} ne 'yes'); |
|
if (exists($field->{'long_title'})) { |
############################################### |
$excel_sheet->write($$rows_output,${$cols_output}, |
############################################### |
$field->{'long_title'}, |
sub statistics_html_table_data { |
$format->{'bold'}); |
my ($data,$options) = @_; |
|
my $row = ''; |
|
foreach my $field (@Fields) { |
|
next if ($options =~ /no $field->{'name'}/); |
|
$row .= '<td bgcolor="'.$field->{'color'}.'"'; |
|
if (exists($field->{'align'})) { |
|
$row .= ' align="'.$field->{'align'}.'"'; |
|
} |
|
$row .= '>'; |
|
if (exists($field->{'special'}) && $field->{'special'} eq 'link') { |
|
$row .= '<a href="'.$data->{$field->{'name'}.'.link'}.'">'; |
|
} |
|
if (exists($field->{'format'})) { |
|
$row .= sprintf($field->{'format'},$data->{$field->{'name'}}); |
|
} else { |
} else { |
$row .= $data->{$field->{'name'}}; |
$excel_sheet->write($$rows_output,${$cols_output},''); |
} |
|
if (exists($field->{'special'}) && $field->{'special'} eq 'link') { |
|
$row.= '</a>'; |
|
} |
} |
$row .= '</td>'; |
${$cols_output}+= 1; |
} |
} |
return $row; |
${$cols_output} =0; |
|
${$rows_output}+=1; |
|
## |
|
## Then the short titles |
|
foreach my $field (@{$Fields}) { |
|
next if ($field->{'selected'} ne 'yes'); |
|
next if ($field->{'name'} eq 'problem_num'); |
|
# Use english for excel as I am not sure how well excel handles |
|
# other character sets.... |
|
$excel_sheet->write($$rows_output,$$cols_output, |
|
$field->{'title'}, |
|
$format->{'bold'}); |
|
$$cols_output+=1; |
|
} |
|
${$cols_output} =0; |
|
${$rows_output}+=1; |
|
return; |
} |
} |
|
|
sub statistics_table_header { |
################################################## |
my ($options) = @_; |
################################################## |
my $header_row; |
## |
foreach my $field (@Fields) { |
## Statistics Gathering and Manipulation Routines |
next if ($options =~ /no $field->{'name'}/); |
## |
$header_row .= '<th>'; |
################################################## |
if ($options =~ /sortable/ && |
################################################## |
exists($field->{'sortable'}) && $field->{'sortable'} eq 'yes') { |
sub compute_statistics_on_sequence { |
$header_row .= '<a href="javascript:'. |
my ($seq) = @_; |
'document.Statistics.sortby.value='."'".$field->{'name'}."'". |
my @Data; |
';document.Statistics.submit();">'; |
foreach my $res (&Apache::lonstathelpers::get_resources($navmap,$seq)) { |
} |
foreach my $part (@{$res->parts}) { |
$header_row .= &mt($field->{'title'}); |
next if ($res->is_survey($part)); |
if ($options =~ /sortable/) { |
# |
$header_row.= '</a>'; |
# This is where all the work happens |
} |
my $data = &get_statistics($seq,$res,$part,scalar(@StatsArray)+1); |
if ($options !~ /no plots/ && |
push (@Data,$data); |
exists($field->{'graphable'}) && |
push (@StatsArray,$data); |
$field->{'graphable'} eq 'yes') { |
|
$header_row.=' ('; |
|
$header_row .= '<a href="javascript:'. |
|
"document.Statistics.plot.value='$field->{'name'}'". |
|
';document.Statistics.submit();">'; |
|
$header_row .= &mt('plot').'</a>)'; |
|
} |
} |
$header_row .= '</th>'; |
|
} |
} |
return $header_row; |
return @Data; |
} |
} |
|
|
############################################### |
sub compute_all_statistics { |
############################################### |
my ($r) = @_; |
|
if (@StatsArray > 0) { |
=pod |
# Assume we have already computed the statistics |
|
return; |
=item &plot_statistics() |
} |
|
my $c = $r->connection; |
=cut |
foreach my $seq (@sequences) { |
|
last if ($c->aborted); |
|
&compute_sequence_statistics($seq); |
|
&compute_statistics_on_sequence($seq); |
|
} |
|
} |
|
|
############################################### |
sub sort_data { |
############################################### |
my ($sortkey) = @_; |
sub plot_statistics { |
return if (! @StatsArray); |
my ($r,$datafield) = @_; |
|
my @Data; |
|
# |
|
# |
# |
my $sortfield = undef; |
# Sort the data |
my $title = undef; |
my $sortby = undef; |
foreach my $field (@Fields) { |
foreach my $field (@Fields) { |
if ($datafield eq $field->{'name'} && |
if ($sortkey eq $field->{'name'}) { |
exists($field->{'graphable'}) && $field->{'graphable'} eq 'yes') { |
$sortby = $field->{'name'}; |
$sortfield = $field->{'name'}; |
|
$title = $field->{'long_title'}; |
|
} |
|
} |
|
return if (! defined($sortfield) || $sortfield eq ''); |
|
# |
|
my $Max = 0; |
|
my $problem_num = 0; |
|
foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()) { |
|
next if ($sequence->{'num_assess'}<1); |
|
foreach my $resource (@{$sequence->{'contents'}}) { |
|
next if ($resource->{'type'} ne 'assessment'); |
|
foreach my $part (@{$resource->{'parts'}}) { |
|
my $problem_number++; |
|
my $data = &get_statistics($sequence,$resource,$part, |
|
$problem_num); |
|
my $value = $data->{$sortfield}; |
|
$Max = $value if ($Max < $value); |
|
push (@Data,$value); |
|
} |
|
} |
} |
} |
} |
# |
if (! defined($sortby) || $sortby eq '' || $sortby eq 'problem_num') { |
# Print out plot request |
$sortby = 'container'; |
my $yaxis = ''; |
} |
if ($sortfield eq 'per_wrong') { |
if ($sortby ne 'container') { |
$yaxis = 'Percent'; |
# $sortby is already defined, so we can charge ahead |
} |
if ($sortby =~ /^(title|part)$/i) { |
# |
# Alpha comparison |
# Determine appropriate value for $Max |
@StatsArray = sort { |
if ($sortfield eq 'deg_of_diff') { |
lc($a->{$sortby}) cmp lc($b->{$sortby}) || |
if ($Max > 0.5) { |
lc($a->{'title'}) cmp lc($b->{'title'}) || |
$Max = 1; |
lc($a->{'part'}) cmp lc($b->{'part'}); |
} elsif ($Max > 0.2) { |
} @StatsArray; |
$Max = 0.5; |
|
} elsif ($Max > 0.1) { |
|
$Max = 0.2; |
|
} |
|
} elsif ($sortfield eq 'per_wrong') { |
|
if ($Max > 50) { |
|
$Max = 100; |
|
} elsif ($Max > 25) { |
|
$Max = 50; |
|
} elsif ($Max > 20) { |
|
$Max = 25; |
|
} elsif ($Max > 10) { |
|
$Max = 20; |
|
} elsif ($Max > 5) { |
|
$Max = 10; |
|
} else { |
} else { |
$Max = 5; |
# Numerical comparison |
|
@StatsArray = sort { |
|
my $retvalue = 0; |
|
if ($b->{$sortby} eq 'nan') { |
|
if ($a->{$sortby} ne 'nan') { |
|
$retvalue = -1; |
|
} else { |
|
$retvalue = 0; |
|
} |
|
} |
|
if ($a->{$sortby} eq 'nan') { |
|
if ($b->{$sortby} ne 'nan') { |
|
$retvalue = 1; |
|
} |
|
} |
|
if ($retvalue eq '0') { |
|
$retvalue = $b->{$sortby} <=> $a->{$sortby} || |
|
lc($a->{'title'}) <=> lc($b->{'title'}) || |
|
lc($a->{'part'}) <=> lc($b->{'part'}); |
|
} |
|
$retvalue; |
|
} @StatsArray; |
} |
} |
} |
} |
|
|
$r->print("<p>".&Apache::loncommon::DrawBarGraph($title, |
|
'Problem Number', |
|
$yaxis, |
|
$Max, |
|
undef, # colors |
|
undef, # labels |
|
\@Data)."</p>\n"); |
|
# |
# |
# Print out the data |
# Renumber the data set |
$ENV{'form.sortby'} = 'Contents'; |
my $count; |
# &output_html_ungrouped($r); |
foreach my $data (@StatsArray) { |
|
$data->{'problem_num'} = ++$count; |
|
} |
return; |
return; |
} |
} |
|
|
Line 831 sub plot_statistics {
|
Line 1522 sub plot_statistics {
|
=item &get_statistics() |
=item &get_statistics() |
|
|
Wrapper routine from the call to loncoursedata::get_problem_statistics. |
Wrapper routine from the call to loncoursedata::get_problem_statistics. |
Calls lonstathelpers::get_time_limits() to limit the data set by time. |
Calls lonstathelpers::get_time_limits() to limit the data set by time |
|
and &compute_discrimination_factor |
|
|
Inputs: $sequence, $resource, $part, $problem_num |
Inputs: $sequence, $resource, $part, $problem_num |
|
|
Line 846 sub get_statistics {
|
Line 1538 sub get_statistics {
|
my ($sequence,$resource,$part,$problem_num) = @_; |
my ($sequence,$resource,$part,$problem_num) = @_; |
# |
# |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my $symb = $resource->{'symb'}; |
my $symb = $resource->symb; |
my $courseid = $ENV{'request.course.id'}; |
my $courseid = $ENV{'request.course.id'}; |
# |
# |
my $data = &Apache::loncoursedata::get_problem_statistics |
my $data = &Apache::loncoursedata::get_problem_statistics |
(\@Apache::lonstatistics::SelectedSections, |
([&Apache::lonstatistics::get_selected_sections()], |
$Apache::lonstatistics::enrollment_status, |
$Apache::lonstatistics::enrollment_status, |
$symb,$part,$courseid,$starttime,$endtime); |
$symb,$part,$courseid,$starttime,$endtime); |
|
$data->{'symb'} = $symb; |
$data->{'part'} = $part; |
$data->{'part'} = $part; |
$data->{'problem_num'} = $problem_num; |
$data->{'problem_num'} = $problem_num; |
$data->{'container'} = $sequence->{'title'}; |
$data->{'container'} = $sequence->compTitle; |
$data->{'title'} = $resource->{'title'}; |
$data->{'title'} = $resource->compTitle; |
$data->{'title.link'} = $resource->{'src'}.'?symb='. |
$data->{'title.link'} = $resource->src.'?symb='. |
&Apache::lonnet::escape($resource->{'symb'}); |
&Apache::lonnet::escape($resource->symb); |
# |
# |
$data->{'deg_of_disc'} = &compute_discrimination_factor($resource,$part,$sequence); |
if ($SelectedFields{'deg_of_disc'}) { |
|
$data->{'deg_of_disc'} = |
|
&compute_discrimination_factor($resource,$part,$sequence); |
|
} |
|
# |
|
# Store in metadata if computations were done for all students |
|
if ($data->{'num_students'} > 1) { |
|
my @Sections = &Apache::lonstatistics::get_selected_sections(); |
|
my $sections = '"'.join(' ',@Sections).'"'; |
|
$sections =~ s/&+/_/g; # Ensure no special characters |
|
$data->{'sections'}=$sections; |
|
$data->{'course'} = $ENV{'request.course.id'}; |
|
my $urlres=(&Apache::lonnet::decode_symb($resource->symb))[2]; |
|
$data->{'urlres'}=$urlres; |
|
my %storestats = |
|
&LONCAPA::lonmetadata::dynamic_metadata_storage($data); |
|
my ($dom,$user) = $urlres=~/^(\w+)\/(\w+)/; |
|
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$dom,$user); |
|
} |
|
# |
|
$data->{'tries_per_correct'} = $data->{'tries'} / |
|
($data->{'num_solved'}+0.1); |
|
# |
|
# Get the due date for research purposes (commented out most of the time) |
|
# $data->{'duedate'} = |
|
# &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb); |
|
# $data->{'opendate'} = |
|
# &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb); |
|
# $data->{'maxtries'} = |
|
# &Apache::lonnet::EXT('resource.'.$part.'.maxtries',$symb); |
|
# $data->{'hinttries'} = |
|
# &Apache::lonnet::EXT('resource.'.$part.'.hinttries',$symb); |
|
$data->{'weight'} = |
|
&Apache::lonnet::EXT('resource.'.$part.'.weight',$symb); |
|
# $data->{'resptypes'} = join(',',@{$resource->{'partdata'}->{$part}->{'ResponseTypes'}}); |
return $data; |
return $data; |
} |
} |
|
|
|
|
############################################### |
############################################### |
############################################### |
############################################### |
|
|
Line 881 Returns: integer between -1 and 1
|
Line 1607 Returns: integer between -1 and 1
|
############################################### |
############################################### |
############################################### |
############################################### |
sub compute_discrimination_factor { |
sub compute_discrimination_factor { |
my ($resource,$part,$sequence) = @_; |
my ($resource,$part,$seq) = @_; |
&Apache::lonnet::logthis($sequence->{'title'}.' '.$resource->{'title'}); |
my $symb = $resource->symb; |
my @Resources; |
my @Resources; |
foreach my $res (@{$sequence->{'contents'}}) { |
foreach my $res (&Apache::lonstathelpers::get_resources($navmap,$seq)){ |
next if ($res->{'symb'} eq $resource->{'symb'}); |
next if ($res->symb eq $symb); |
push (@Resources,$res->{'symb'}); |
push (@Resources,$res->symb); |
} |
} |
# |
# |
# rank |
# rank |
|
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my $ranking = |
my $ranking = |
&Apache::loncoursedata::rank_students_by_scores_on_resources |
&Apache::loncoursedata::rank_students_by_scores_on_resources |
(\@Resources, |
(\@Resources, |
\@Apache::lonstatistics::SelectedSections, |
[&Apache::lonstatistics::get_selected_sections()], |
$Apache::lonstatistics::enrollment_status,undef); |
$Apache::lonstatistics::enrollment_status,undef, |
|
$starttime,$endtime); |
# |
# |
# compute their percent scores on the problems in the sequence, |
# compute their percent scores on the problems in the sequence, |
my $number_to_grab = int(scalar(@{$ranking})/4); |
my $number_to_grab = int(scalar(@{$ranking})/4); |
Line 905 sub compute_discrimination_factor {
|
Line 1633 sub compute_discrimination_factor {
|
map { |
map { |
$_->[&Apache::loncoursedata::RNK_student()]; |
$_->[&Apache::loncoursedata::RNK_student()]; |
} @{$ranking}[($num_students-$number_to_grab)..($num_students-1)]; |
} @{$ranking}[($num_students-$number_to_grab)..($num_students-1)]; |
|
if (! @BottomSet || (@BottomSet == 1 && $BottomSet[0] eq '') || |
|
! @TopSet || (@TopSet == 1 && $TopSet[0] eq '')) { |
|
return 'nan'; |
|
} |
my ($bottom_sum,$bottom_max) = |
my ($bottom_sum,$bottom_max) = |
&Apache::loncoursedata::get_sum_of_scores($resource,$part,\@BottomSet); |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@BottomSet, |
|
undef,$starttime,$endtime); |
my ($top_sum,$top_max) = |
my ($top_sum,$top_max) = |
&Apache::loncoursedata::get_sum_of_scores($resource,$part,\@TopSet); |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@TopSet, |
|
undef,$starttime,$endtime); |
my $deg_of_disc; |
my $deg_of_disc; |
if ($top_max == 0 || $bottom_max==0) { |
if ($top_max == 0 || $bottom_max==0) { |
$deg_of_disc = 'nan'; |
$deg_of_disc = 'nan'; |
Line 922 sub compute_discrimination_factor {
|
Line 1656 sub compute_discrimination_factor {
|
|
|
############################################### |
############################################### |
############################################### |
############################################### |
|
## |
|
## Compute KR-21 |
|
## |
|
## To compute KR-21, you need the following information: |
|
## |
|
## K=the number of items in your test |
|
## M=the mean score on the test |
|
## s=the standard deviation of the scores on your test |
|
## |
|
## then: |
|
## |
|
## KR-21 rk= [K/(K-1)] * [1- (M*(K-M))/(K*s^2))] |
|
## |
|
############################################### |
|
############################################### |
|
sub compute_sequence_statistics { |
|
my ($seq) = @_; |
|
my $symb = $seq->symb; |
|
my @Resources; |
|
my $part_count; |
|
foreach my $res (&Apache::lonstathelpers::get_resources($navmap,$seq)) { |
|
push (@Resources,$res->symb); |
|
$part_count += scalar(@{$res->parts}); |
|
} |
|
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
|
# |
|
# First compute statistics based on student scores |
|
my ($smin,$smax,$sMean,$sSTD,$scount,$sMAX) = |
|
&Apache::loncoursedata::score_stats |
|
([&Apache::lonstatistics::get_selected_sections()], |
|
$Apache::lonstatistics::enrollment_status, |
|
\@Resources,$starttime,$endtime,undef); |
|
$SeqStat{$symb}->{'title'} = $seq->compTitle; |
|
$SeqStat{$symb}->{'scoremax'} = $smax; |
|
$SeqStat{$symb}->{'scoremin'} = $smin; |
|
$SeqStat{$symb}->{'scoremean'} = $sMean; |
|
$SeqStat{$symb}->{'scorestd'} = $sSTD; |
|
$SeqStat{$symb}->{'scorecount'} = $scount; |
|
$SeqStat{$symb}->{'max_possible'} = $sMAX; |
|
# |
|
# Compute statistics based on the number of correct problems |
|
# 'correct' is taken to mean |
|
my ($cmin,$cmax,$cMean,$cSTD,$ccount)= |
|
&Apache::loncoursedata::count_stats |
|
([&Apache::lonstatistics::get_selected_sections()], |
|
$Apache::lonstatistics::enrollment_status, |
|
\@Resources,$starttime,$endtime,undef); |
|
my $K = $part_count; |
|
my $kr_21; |
|
if ($K > 1 && $cSTD > 0) { |
|
$kr_21 = ($K/($K-1)) * (1 - $cMean*($K-$cMean)/($K*$cSTD**2)); |
|
} else { |
|
$kr_21 = 'nan'; |
|
} |
|
$SeqStat{$symb}->{'countmax'} = $cmax; |
|
$SeqStat{$symb}->{'countmin'} = $cmin; |
|
$SeqStat{$symb}->{'countstd'} = $cSTD; |
|
$SeqStat{$symb}->{'countmean'} = $cMean; |
|
$SeqStat{$symb}->{'count'} = $ccount; |
|
$SeqStat{$symb}->{'items'} = $K; |
|
$SeqStat{$symb}->{'KR-21'}=$kr_21; |
|
return; |
|
} |
|
|
|
|
|
|
=pod |
=pod |
|
|
=item &ProblemStatisticsLegend() |
=item ProblemStatisticsLegend |
|
|
HELP This needs to be localized, or at least generated automatically. |
=over 4 |
|
|
=cut |
=item #Stdnts |
|
Total number of students attempted the problem. |
|
|
############################################### |
=item Tries |
############################################### |
Total number of tries for solving the problem. |
sub ProblemStatisticsLegend { |
|
my $Ptr = ''; |
=item Max Tries |
$Ptr = '<table border="0">'; |
Largest number of tries for solving the problem by a student. |
$Ptr .= '<tr><td>'; |
|
$Ptr .= '<b>#Stdnts</b></td>'; |
=item Mean |
$Ptr .= '<td>Total number of students attempted the problem.'; |
Average number of tries. [ Tries / #Stdnts ] |
$Ptr .= '</td></tr><tr><td>'; |
|
$Ptr .= '<b>Tries</b></td>'; |
=item #YES |
$Ptr .= '<td>Total number of tries for solving the problem.'; |
Number of students solved the problem correctly. |
$Ptr .= '</td></tr><tr><td>'; |
|
$Ptr .= '<b>Max Tries</b></td>'; |
=item #yes |
$Ptr .= '<td>Largest number of tries for solving the problem by a student.'; |
Number of students solved the problem by override. |
$Ptr .= '</td></tr><tr><td>'; |
|
$Ptr .= '<b>Mean</b></td>'; |
=item %Wrong |
$Ptr .= '<td>Average number of tries. [ Tries / #Stdnts ]'; |
Percentage of students who tried to solve the problem |
$Ptr .= '</td></tr><tr><td>'; |
but is still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ] |
$Ptr .= '<b>#YES</b></td>'; |
|
$Ptr .= '<td>Number of students solved the problem correctly.'; |
=item DoDiff |
$Ptr .= '</td></tr><tr><td>'; |
Degree of Difficulty of the problem. |
$Ptr .= '<b>#yes</b></td>'; |
[ 1 - ((#YES+#yes) / Tries) ] |
$Ptr .= '<td>Number of students solved the problem by override.'; |
|
$Ptr .= '</td></tr><tr><td>'; |
=item S.D. |
$Ptr .= '<b>%Wrong</b></td>'; |
Standard Deviation of the tries. |
$Ptr .= '<td>Percentage of students who tried to solve the problem '; |
[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) |
$Ptr .= 'but is still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]'; |
where Xi denotes every student\'s tries ] |
$Ptr .= '</td></tr><tr><td>'; |
|
$Ptr .= '<b>DoDiff</b></td>'; |
=item Skew. |
$Ptr .= '<td>Degree of Difficulty of the problem. '; |
Skewness of the students tries. |
$Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]'; |
[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)] |
$Ptr .= '</td></tr><tr><td>'; |
|
$Ptr .= '<b>S.D.</b></td>'; |
=item Dis.F. |
$Ptr .= '<td>Standard Deviation of the tries. '; |
Discrimination Factor: A Standard for evaluating the |
$Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) '; |
problem according to a Criterion<br> |
$Ptr .= 'where Xi denotes every student\'s tries ]'; |
|
$Ptr .= '</td></tr><tr><td>'; |
=item [Criterion to group students into %27 Upper Students - |
$Ptr .= '<b>Skew.</b></td>'; |
and %27 Lower Students] |
$Ptr .= '<td>Skewness of the students tries.'; |
1st Criterion for Sorting the Students: |
$Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]'; |
Sum of Partial Credit Awarded / Total Number of Tries |
$Ptr .= '</td></tr><tr><td>'; |
2nd Criterion for Sorting the Students: |
$Ptr .= '<b>Dis.F.</b></td>'; |
Total number of Correct Answers / Total Number of Tries |
$Ptr .= '<td>Discrimination Factor: A Standard for evaluating the '; |
|
$Ptr .= 'problem according to a Criterion<br>'; |
=item Disc. |
$Ptr .= '<b>[Criterion to group students into %27 Upper Students - '; |
Number of Students had at least one discussion. |
$Ptr .= 'and %27 Lower Students]</b><br>'; |
|
$Ptr .= '<b>1st Criterion</b> for Sorting the Students: '; |
=back |
$Ptr .= '<b>Sum of Partial Credit Awarded / Total Number of Tries</b><br>'; |
|
$Ptr .= '<b>2nd Criterion</b> for Sorting the Students: '; |
=cut |
$Ptr .= '<b>Total number of Correct Answers / Total Number of Tries</b>'; |
|
$Ptr .= '</td></tr>'; |
|
$Ptr .= '<tr><td><b>Disc.</b></td>'; |
|
$Ptr .= '<td>Number of Students had at least one discussion.'; |
|
$Ptr .= '</td></tr></table>'; |
|
return $Ptr; |
|
} |
|
|
|
#---- END Problem Statistics Web Page ---------------------------------------- |
############################################################ |
|
############################################################ |
|
|
1; |
1; |
__END__ |
__END__ |