version 1.115, 2008/10/30 17:45:25
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version 1.117, 2009/03/05 09:12:14
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Line 123 my @Fields = (
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Line 123 my @Fields = (
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align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
special => 'link', |
special => 'link', |
sortable => 'yes', |
sortable => 'yes', |
selectable => 'no', |
selectable => 'no', |
defaultselected => 'yes', |
defaultselected => 'yes', |
}, |
}, |
{ name => 'part', |
{ name => 'part', |
title => 'Part', |
title => 'Part', |
align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
Line 375 my @SeqFields = (
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Line 375 my @SeqFields = (
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align => 'left', |
align => 'left', |
color => '#FFFFE6', |
color => '#FFFFE6', |
special => 'no', |
special => 'no', |
sortable => 'no', |
sortable => 'no', |
selectable => 'yes', |
selectable => 'yes', |
defaultselected => 'no', |
defaultselected => 'no', |
}, |
}, |
Line 510 my @SeqFields = (
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Line 510 my @SeqFields = (
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long_title => 'KR-21 reliability statistic', |
long_title => 'KR-21 reliability statistic', |
selectable => 'yes', |
selectable => 'yes', |
defaultselected => 'no', |
defaultselected => 'no', |
}, |
}, |
); |
); |
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my %SelectedFields; |
my %SelectedFields; |
Line 577 sub parse_field_selection {
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Line 577 sub parse_field_selection {
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} |
} |
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sub field_selection_input { |
sub field_selection_input { |
my $Str = '<select name="fieldselections" multiple size="5">'."\n"; |
my $Str = '<select name="fieldselections" multiple="multiple" size="5">'."\n"; |
$Str .= '<option value="all">all</option>'."\n"; |
$Str .= '<option value="all">all</option>'."\n"; |
foreach my $field (@Fields) { |
foreach my $field (@Fields) { |
next if ($field->{'selectable'} ne 'yes'); |
next if ($field->{'selectable'} ne 'yes'); |
Line 709 sub BuildProblemStatisticsPage {
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Line 709 sub BuildProblemStatisticsPage {
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$r->print('<input type="hidden" name="sortby" value="'.$env{'form.sortby'}. |
$r->print('<input type="hidden" name="sortby" value="'.$env{'form.sortby'}. |
'" />'); |
'" />'); |
# |
# |
my @CacheButtonHTML = |
my @CacheButtonHTML = |
&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); |
&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); |
my $Str; |
my $Str; |
foreach my $html (@CacheButtonHTML) { |
foreach my $html (@CacheButtonHTML) { |
Line 718 sub BuildProblemStatisticsPage {
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Line 718 sub BuildProblemStatisticsPage {
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# |
# |
$r->print($Str); |
$r->print($Str); |
if (! exists($env{'form.firstrun'})) { |
if (! exists($env{'form.firstrun'})) { |
$r->print('<h3>'. |
$r->print('<p class="LC_info"><b>'. |
&mt('Press "Generate Statistics" when you are ready.'). |
&mt('Press "Generate Statistics" when you are ready.'). |
'</h3><p>'. |
'</b></p>'. |
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'<p class="LC_info">'. |
&mt('It may take some time to update the student data '. |
&mt('It may take some time to update the student data '. |
'for the first analysis. Future analysis this session '. |
'for the first analysis. Future analysis this session '. |
'will not have this delay.'). |
'will not have this delay.'). |
'</p>'); |
'</p>'); |
&clean_up(); |
&clean_up(); |
Line 734 sub BuildProblemStatisticsPage {
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Line 735 sub BuildProblemStatisticsPage {
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# it does not slow things down noticably. |
# it does not slow things down noticably. |
&Apache::loncoursedata::populate_weight_table(); |
&Apache::loncoursedata::populate_weight_table(); |
# |
# |
($navmap,@sequences) = |
($navmap,@sequences) = |
&Apache::lonstatistics::selected_sequences_with_assessments(); |
&Apache::lonstatistics::selected_sequences_with_assessments(); |
if (! ref($navmap)) { |
if (! ref($navmap)) { |
$r->print('<div class="LC_error">'.&mt('A course-wide error occurred.').'</div>'. |
$r->print('<div class="LC_error">'.&mt('A course-wide error occurred.').'</div>'. |
Line 747 sub BuildProblemStatisticsPage {
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Line 748 sub BuildProblemStatisticsPage {
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&Apache::lonstatistics::section_and_enrollment_description(). |
&Apache::lonstatistics::section_and_enrollment_description(). |
'</h4>'); |
'</h4>'); |
&Excel_output($r); |
&Excel_output($r); |
} else { |
} else { |
$r->print('<input type="submit" name="Excel" value="'. |
$r->print('<input type="submit" name="Excel" value="'. |
&mt('Produce Excel Output').'" />'.' 'x5); |
&mt('Produce Excel Output').'" />'.' 'x5); |
$r->rflush(); |
$r->rflush(); |
Line 756 sub BuildProblemStatisticsPage {
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Line 757 sub BuildProblemStatisticsPage {
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'</h4>'); |
'</h4>'); |
my $count = 0; |
my $count = 0; |
foreach my $seq (@sequences) { |
foreach my $seq (@sequences) { |
my @resources = |
my @resources = |
&Apache::lonstathelpers::get_resources($navmap,$seq); |
&Apache::lonstathelpers::get_resources($navmap,$seq); |
$count += scalar(@resources); |
$count += scalar(@resources); |
} |
} |
Line 801 sub output_sequence_statistics {
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Line 802 sub output_sequence_statistics {
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'<table border="0" cellpadding="3">'."\n". |
'<table border="0" cellpadding="3">'."\n". |
'<tr bgcolor="#FFFFE6">'); |
'<tr bgcolor="#FFFFE6">'); |
$r->print(&sequence_html_header()); |
$r->print(&sequence_html_header()); |
foreach my $seq (@sequences) { |
foreach my $seq (@sequences) { |
last if ($c->aborted); |
last if ($c->aborted); |
&compute_sequence_statistics($seq); |
&compute_sequence_statistics($seq); |
$r->print(&sequence_html_output($seq)); |
$r->print(&sequence_html_output($seq)); |
Line 1024 sub make_single_stat_plot {
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Line 1025 sub make_single_stat_plot {
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} |
} |
# |
# |
# Build up the data sets to plot |
# Build up the data sets to plot |
my @Labels; |
my @Labels; |
my @Data; |
my @Data; |
my $max = 1; |
my $max = 1; |
foreach my $data (@StatsArray) { |
foreach my $data (@StatsArray) { |
Line 1064 sub degrees_plot {
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Line 1065 sub degrees_plot {
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my $plot = ''; |
my $plot = ''; |
my $ymax = 0; |
my $ymax = 0; |
my $ymin = 0; |
my $ymin = 0; |
my @Disc; my @Diff; my @Labels; |
my @Disc; my @Diff; my @Labels; |
foreach my $data (@StatsArray) { |
foreach my $data (@StatsArray) { |
push(@Labels,$data->{'problem_num'}); |
push(@Labels,$data->{'problem_num'}); |
my $disc = $data->{'deg_of_disc'}; |
my $disc = $data->{'deg_of_disc'}; |
Line 1154 sub degrees_plot {
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Line 1155 sub degrees_plot {
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</curve> |
</curve> |
</gnuplot> |
</gnuplot> |
END |
END |
my $plotresult = |
my $plotresult = |
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
$r->print($plotresult); |
$r->print($plotresult); |
return; |
return; |
Line 1239 sub tries_data_plot {
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Line 1240 sub tries_data_plot {
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</curve> |
</curve> |
</gnuplot> |
</gnuplot> |
END |
END |
my $plotresult = |
my $plotresult = |
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/; |
$r->print($plotresult); |
$r->print($plotresult); |
return; |
return; |
Line 1350 sub Excel_output {
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Line 1351 sub Excel_output {
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$excel_sheet->write($rows_output,$cols_output++, |
$excel_sheet->write($rows_output,$cols_output++, |
'Compiled on '.localtime(time)); |
'Compiled on '.localtime(time)); |
# |
# |
$rows_output++; |
$rows_output++; |
$cols_output=0; |
$cols_output=0; |
## |
## |
## Sequence Statistics |
## Sequence Statistics |
## |
## |
&write_headers($excel_sheet,$format,\$rows_output,\$cols_output, |
&write_headers($excel_sheet,$format,\$rows_output,\$cols_output, |
\@SeqFields); |
\@SeqFields); |
foreach my $seq (@sequences) { |
foreach my $seq (@sequences) { |
Line 1432 sub write_headers {
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Line 1433 sub write_headers {
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foreach my $field (@{$Fields}) { |
foreach my $field (@{$Fields}) { |
next if ($field->{'selected'} ne 'yes'); |
next if ($field->{'selected'} ne 'yes'); |
next if ($field->{'name'} eq 'problem_num'); |
next if ($field->{'name'} eq 'problem_num'); |
# Use english for excel as I am not sure how well excel handles |
# Use english for excel as I am not sure how well excel handles |
# other character sets.... |
# other character sets.... |
$excel_sheet->write($$rows_output,$$cols_output, |
$excel_sheet->write($$rows_output,$$cols_output, |
$field->{'title'}, |
$field->{'title'}, |
Line 1545 sub sort_data {
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Line 1546 sub sort_data {
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=item &get_statistics() |
=item &get_statistics() |
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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 |
and &compute_discrimination_factor |
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Inputs: $sequence, $resource, $part, $problem_num |
Inputs: $sequence, $resource, $part, $problem_num |
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Returns: Hash reference with statistics data from |
Returns: Hash reference with statistics data from |
loncoursedata::get_problem_statistics. |
loncoursedata::get_problem_statistics. |
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=cut |
=cut |
Line 1579 sub get_statistics {
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Line 1580 sub get_statistics {
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&escape($resource->symb); |
&escape($resource->symb); |
# |
# |
if ($SelectedFields{'deg_of_disc'}) { |
if ($SelectedFields{'deg_of_disc'}) { |
$data->{'deg_of_disc'} = |
$data->{'deg_of_disc'} = |
&compute_discrimination_factor($resource,$part,$sequence); |
&compute_discrimination_factor($resource,$part,$sequence); |
} |
} |
# |
# |
Line 1592 sub get_statistics {
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Line 1593 sub get_statistics {
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$data->{'course'} = $env{'request.course.id'}; |
$data->{'course'} = $env{'request.course.id'}; |
my $urlres=(&Apache::lonnet::decode_symb($resource->symb))[2]; |
my $urlres=(&Apache::lonnet::decode_symb($resource->symb))[2]; |
$data->{'urlres'}=$urlres; |
$data->{'urlres'}=$urlres; |
my %storestats = |
my %storestats = |
&LONCAPA::lonmetadata::dynamic_metadata_storage($data); |
&LONCAPA::lonmetadata::dynamic_metadata_storage($data); |
my ($dom,$user) = ($urlres=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)}); |
my ($dom,$user) = ($urlres=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)}); |
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$dom,$user); |
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$dom,$user); |
} |
} |
# |
# |
Line 1608 sub get_statistics {
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Line 1609 sub get_statistics {
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# my $hinttries = &Apache::lonnet::EXT('resource.'.$part.'.hinttries',$symb); |
# my $hinttries = &Apache::lonnet::EXT('resource.'.$part.'.hinttries',$symb); |
my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',$symb); |
my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',$symb); |
$data->{'weight'} = $weight; |
$data->{'weight'} = $weight; |
# $data->{'duedate'} = $duedate; |
# $data->{'duedate'} = $duedate; |
# $data->{'opendate'} = $opendate; |
# $data->{'opendate'} = $opendate; |
# $data->{'maxtries'} = $maxtries; |
# $data->{'maxtries'} = $maxtries; |
# $data->{'hinttries'} = $hinttries; |
# $data->{'hinttries'} = $hinttries; |
Line 1642 sub compute_discrimination_factor {
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Line 1643 sub compute_discrimination_factor {
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# |
# |
# rank |
# rank |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my ($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::get_selected_sections()], |
[&Apache::lonstatistics::get_selected_sections()], |
Line 1653 sub compute_discrimination_factor {
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Line 1654 sub compute_discrimination_factor {
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# 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); |
my $num_students = scalar(@{$ranking}); |
my $num_students = scalar(@{$ranking}); |
my @BottomSet = map { $_->[&Apache::loncoursedata::RNK_student()]; |
my @BottomSet = map { $_->[&Apache::loncoursedata::RNK_student()]; |
} @{$ranking}[0..$number_to_grab]; |
} @{$ranking}[0..$number_to_grab]; |
my @TopSet = |
my @TopSet = |
map { |
map { |
$_->[&Apache::loncoursedata::RNK_student()]; |
$_->[&Apache::loncoursedata::RNK_student()]; |
} @{$ranking}[-$number_to_grab..0]; |
} @{$ranking}[-$number_to_grab..0]; |
if (! @BottomSet || (@BottomSet == 1 && $BottomSet[0] eq '') || |
if (! @BottomSet || (@BottomSet == 1 && $BottomSet[0] eq '') || |
! @TopSet || (@TopSet == 1 && $TopSet[0] eq '')) { |
! @TopSet || (@TopSet == 1 && $TopSet[0] eq '')) { |
return 'nan'; |
return 'nan'; |
} |
} |
my ($bottom_sum,$bottom_max) = |
my ($bottom_sum,$bottom_max) = |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@BottomSet, |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@BottomSet, |
undef,$starttime,$endtime); |
undef,$starttime,$endtime); |
my ($top_sum,$top_max) = |
my ($top_sum,$top_max) = |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@TopSet, |
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@TopSet, |
undef,$starttime,$endtime); |
undef,$starttime,$endtime); |
my $deg_of_disc; |
my $deg_of_disc; |
Line 1689 sub compute_discrimination_factor {
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Line 1690 sub compute_discrimination_factor {
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## |
## |
## K=the number of items in your test |
## K=the number of items in your test |
## M=the mean score on the test |
## M=the mean score on the test |
## s=the standard deviation of the scores on your test |
## s=the standard deviation of the scores on your test |
## |
## |
## then: |
## then: |
## |
## |
## KR-21 rk= [K/(K-1)] * [1- (M*(K-M))/(K*s^2))] |
## KR-21 rk= [K/(K-1)] * [1- (M*(K-M))/(K*s^2))] |
## |
## |
############################################### |
############################################### |
Line 1709 sub compute_sequence_statistics {
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Line 1710 sub compute_sequence_statistics {
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my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits(); |
# |
# |
# First compute statistics based on student scores |
# First compute statistics based on student scores |
my ($smin,$smax,$sMean,$sSTD,$scount,$sMAX) = |
my ($smin,$smax,$sMean,$sSTD,$scount,$sMAX) = |
&Apache::loncoursedata::score_stats |
&Apache::loncoursedata::score_stats |
([&Apache::lonstatistics::get_selected_sections()], |
([&Apache::lonstatistics::get_selected_sections()], |
[&Apache::lonstatistics::get_selected_groups()], |
[&Apache::lonstatistics::get_selected_groups()], |
Line 1724 sub compute_sequence_statistics {
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Line 1725 sub compute_sequence_statistics {
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$SeqStat{$symb}->{'max_possible'} = $sMAX; |
$SeqStat{$symb}->{'max_possible'} = $sMAX; |
# |
# |
# Compute statistics based on the number of correct problems |
# Compute statistics based on the number of correct problems |
# 'correct' is taken to mean |
# 'correct' is taken to mean |
my ($cmin,$cmax,$cMean,$cSTD,$ccount)= |
my ($cmin,$cmax,$cMean,$cSTD,$ccount)= |
&Apache::loncoursedata::count_stats |
&Apache::loncoursedata::count_stats |
([&Apache::lonstatistics::get_selected_sections()], |
([&Apache::lonstatistics::get_selected_sections()], |