version 1.39, 2003/10/15 21:30:51
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version 1.44, 2003/10/21 16:00:30
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Line 1
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Line 1
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# |
# |
|
|
# $Id$ |
# $Id$ |
# |
# |
# Copyright Michigan State University Board of Trustees |
# Copyright Michigan State University Board of Trustees |
Line 36 use Apache::loncoursedata();
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Line 35 use Apache::loncoursedata();
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use Apache::lonstatistics; |
use Apache::lonstatistics; |
use Apache::lonlocal; |
use Apache::lonlocal; |
use HTML::Entities(); |
use HTML::Entities(); |
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use Time::Local(); |
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use Spreadsheet::WriteExcel(); |
|
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my $plotcolors = [qw/ |
my $plotcolors = ['#33ff00', |
#33ff00 |
'#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933', |
#0033cc #990000 #aaaa66 #663399 #ff9933 |
'#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66', |
#66ccff #ff9999 #cccc33 #660000 #33cc66 |
]; |
/]; |
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#[qw/lgreen dgreen dred/]; |
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sub BuildProblemAnalysisPage { |
sub BuildProblemAnalysisPage { |
my ($r,$c)=@_; |
my ($r,$c)=@_; |
Line 51 sub BuildProblemAnalysisPage {
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Line 50 sub BuildProblemAnalysisPage {
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# |
# |
my @Students = @Apache::lonstatistics::Students; |
my @Students = @Apache::lonstatistics::Students; |
# |
# |
if (exists($ENV{'form.updatecaches'}) || |
if (exists($ENV{'form.ClearCache'}) || |
|
exists($ENV{'form.updatecaches'}) || |
(exists($ENV{'form.firstanalysis'}) && |
(exists($ENV{'form.firstanalysis'}) && |
$ENV{'form.firstanalysis'} ne 'no')) { |
$ENV{'form.firstanalysis'} ne 'no')) { |
&Apache::lonstatistics::Gather_Full_Student_Data($r); |
&Apache::lonstatistics::Gather_Full_Student_Data($r); |
Line 78 sub BuildProblemAnalysisPage {
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Line 78 sub BuildProblemAnalysisPage {
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$r->print('<input type="submit" name="SelectAnother" value="'. |
$r->print('<input type="submit" name="SelectAnother" value="'. |
&mt('Choose a different resource').'" />'); |
&mt('Choose a different resource').'" />'); |
$r->print(' 'x5); |
$r->print(' 'x5); |
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$r->print('<input type="submit" name="ExcelOutput" value="'. |
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&mt('Produce Excel Data Sheet').'" />'); |
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$r->print(' 'x5); |
# |
# |
$r->print('<hr />'); |
$r->print('<hr />'); |
# |
# |
my ($symb,$part,$resid) = &get_problem_symb( |
my ($symb,$part,$resid) = &get_problem_symb( |
&Apache::lonnet::unescape($ENV{'form.problemchoice'}) |
&Apache::lonnet::unescape($ENV{'form.problemchoice'}) |
); |
); |
|
$r->rflush(); |
# |
# |
my $resource = &get_resource_from_symb($symb); |
my $resource = &get_resource_from_symb($symb); |
if (defined($resource)) { |
if (defined($resource)) { |
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$r->print('<h1>'.$resource->{'title'}.'</h1>'); |
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$r->print('<h3>'.$resource->{'src'}.'</h3>'); |
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$r->rflush(); |
my %Data = &get_problem_data($resource->{'src'}); |
my %Data = &get_problem_data($resource->{'src'}); |
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my $PerformanceData = |
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&Apache::loncoursedata::get_optionresponse_data |
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(\@Students,$symb,$resid); |
my $ORdata = $Data{$part.'.'.$resid}; |
my $ORdata = $Data{$part.'.'.$resid}; |
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if (exists($ENV{'form.ExcelOutput'}) && |
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defined($PerformanceData)) { |
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my $result = &prepare_excel_sheet($r,$resource, |
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$PerformanceData,$ORdata); |
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$r->print($result); |
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$r->rflush(); |
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} |
## |
## |
## Render the problem |
## Render the problem |
my $base; |
my $base; |
Line 102 sub BuildProblemAnalysisPage {
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Line 119 sub BuildProblemAnalysisPage {
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'<base href="'.$base.'" />'. |
'<base href="'.$base.'" />'. |
$rendered_problem. |
$rendered_problem. |
'</td></tr></table>'); |
'</td></tr></table>'); |
## |
$r->rflush(); |
## Analyze the problem |
if (! exists($ENV{'form.ExcelOutput'})) { |
my $PerformanceData = |
## |
&Apache::loncoursedata::get_optionresponse_data |
## Analyze the problem |
(\@Students,$symb,$resid); |
if (defined($PerformanceData) && |
if (defined($PerformanceData) && |
ref($PerformanceData) eq 'ARRAY') { |
ref($PerformanceData) eq 'ARRAY') { |
if ($ENV{'form.AnalyzeOver'} eq 'Tries') { |
if ($ENV{'form.AnalyzeOver'} eq 'Tries') { |
my $analysis_html = &tries_analysis($r, |
my $analysis_html = &tries_analysis($PerformanceData, |
$PerformanceData, |
$ORdata); |
$ORdata); |
$r->print($analysis_html); |
$r->print($analysis_html); |
} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { |
$r->rflush(); |
my $analysis_html = &time_analysis($PerformanceData, |
} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { |
$ORdata); |
my $analysis_html = &time_analysis($PerformanceData, |
$r->print($analysis_html); |
$ORdata); |
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$r->print($analysis_html); |
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$r->rflush(); |
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} else { |
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$r->print('<h2>'. |
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&mt('The analysis you have selected is '. |
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'not supported at this time'). |
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'</h2>'); |
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} |
} else { |
} else { |
$r->print('<h2>'. |
$r->print('<h2>'. |
&mt('The analysis you have selected is '. |
&mt('There is no student data for this problem.'). |
'not supported at this time'). |
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'</h2>'); |
'</h2>'); |
} |
} |
} else { |
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$r->print('<h2>'. |
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&mt('There is no student data for this problem.'). |
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'</h2>'); |
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} |
} |
} else { |
} else { |
$r->print('resource is undefined'); |
$r->print('resource is undefined'); |
Line 141 sub BuildProblemAnalysisPage {
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Line 161 sub BuildProblemAnalysisPage {
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} |
} |
} |
} |
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######################################################### |
######################################################### |
######################################################### |
######################################################### |
## |
## |
Line 151 sub BuildProblemAnalysisPage {
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Line 170 sub BuildProblemAnalysisPage {
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######################################################### |
######################################################### |
sub build_foil_index { |
sub build_foil_index { |
my ($ORdata) = @_; |
my ($ORdata) = @_; |
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return if (! exists($ORdata->{'Foils'})); |
my %Foildata = %{$ORdata->{'Foils'}}; |
my %Foildata = %{$ORdata->{'Foils'}}; |
my @Foils = sort(keys(%Foildata)); |
my @Foils = sort(keys(%Foildata)); |
my %Concepts; |
my %Concepts; |
Line 173 sub build_foil_index {
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Line 193 sub build_foil_index {
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eight => 8, |
eight => 8, |
nine => 9, |
nine => 9, |
ten => 10,); |
ten => 10,); |
my $a1 = $a; |
my $a1 = lc($a); |
my $b1 = $b; |
my $b1 = lc($b); |
if (exists($Numbers{lc($a)})) { |
if (exists($Numbers{$a})) { |
$a1 = $Numbers{lc($a)}; |
$a1 = $Numbers{$a}; |
} |
} |
if (exists($Numbers{lc($b)})) { |
if (exists($Numbers{$b})) { |
$b1 = $Numbers{lc($b)}; |
$b1 = $Numbers{$b}; |
} |
} |
$a1 cmp $b1; |
$a1 cmp $b1; |
}; |
}; |
Line 266 sub build_option_index {
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Line 286 sub build_option_index {
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my $table = "<table>\n"; |
my $table = "<table>\n"; |
my $optionindex = 0; |
my $optionindex = 0; |
my @Rows; |
my @Rows; |
foreach my $option ('correct',@{$ORdata->{'Options'}}) { |
foreach my $option (&mt('correct option chosen'),@{$ORdata->{'Options'}}) { |
push (@Rows, |
push (@Rows, |
'<tr>'. |
'<tr>'. |
'<td bgcolor="'.$plotcolors->[$optionindex++].'">'. |
'<td bgcolor="'.$plotcolors->[$optionindex++].'">'. |
Line 274 sub build_option_index {
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Line 294 sub build_option_index {
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'<td>'.$option.'</td>'. |
'<td>'.$option.'</td>'. |
"</tr>\n"); |
"</tr>\n"); |
} |
} |
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shift(@Rows); # Throw away 'correct option chosen' color |
$table .= join('',reverse(@Rows)); |
$table .= join('',reverse(@Rows)); |
$table .= "</table>\n"; |
$table .= "</table>\n"; |
} |
} |
Line 286 sub build_option_index {
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Line 307 sub build_option_index {
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######################################################### |
######################################################### |
######################################################### |
######################################################### |
sub tries_analysis { |
sub tries_analysis { |
my ($PerformanceData,$ORdata) = @_; |
my ($r,$PerformanceData,$ORdata) = @_; |
my $mintries = 1; |
my $mintries = 1; |
my $maxtries = $ENV{'form.NumPlots'}; |
my $maxtries = $ENV{'form.NumPlots'}; |
my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); |
my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); |
Line 297 sub tries_analysis {
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Line 318 sub tries_analysis {
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'</h3>'.$table; |
'</h3>'.$table; |
$ENV{'form.AnalyzeAs'} = 'Foils'; |
$ENV{'form.AnalyzeAs'} = 'Foils'; |
} |
} |
my %ResponseData = &analyze_option_data_by_tries($PerformanceData, |
my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData, |
$mintries,$maxtries); |
$mintries,$maxtries); |
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my $analysis = ''; |
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if ($ENV{'form.AnalyzeAs'} eq 'Foils') { |
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$analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils, |
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\%ResponseData,$ORdata); |
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} else { |
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$analysis = &Tries_Concept_Analysis($mintries,$maxtries, |
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$Concepts,\%ResponseData,$ORdata); |
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} |
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$table .= $analysis; |
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return $table; |
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} |
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sub Tries_Foil_Analysis { |
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my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_; |
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my %ResponseData = %$respdat; |
# |
# |
# Compute the data neccessary to make the plots |
# Compute the data neccessary to make the plots |
my @PlotData; # Array which holds the data for each plot |
my @PlotData; |
# @{$PlotData[$try]->{'datasetname'}} holds the data for |
foreach my $foilid (@$Foils) { |
# try $try with respect to 'datasetname'. The array is |
for (my $i=$mintries;$i<=$maxtries;$i++) { |
# filled either with per-foil or per-concept data. |
if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { |
my ($extrakey,$xlabel,$ylabel); |
push(@{$PlotData[$i]->{'_correct'}},0); |
if ($ENV{'form.AnalyzeAs'} eq 'Foils') { |
} else { |
$extrakey = &build_option_index($ORdata); |
push(@{$PlotData[$i]->{'_correct'}}, |
$xlabel = 'Foil Number'; |
100*$ResponseData{$foilid}->[$i]->{'_correct'}/ |
$ylabel = 'Option Chosen'; |
$ResponseData{$foilid}->[$i]->{'_total'}); |
foreach my $foilid (@$Foils) { |
} |
for (my $i=$mintries;$i<=$maxtries;$i++) { |
foreach my $option (@{$ORdata->{'Options'}}) { |
foreach my $option ('_correct',@{$ORdata->{'Options'}}) { |
push(@{$PlotData[$i]->{'_total'}}, |
push(@{$PlotData[$i]->{'_total'}}, |
$ResponseData{$foilid}->[$i]->{'_total'}); |
$ResponseData{$foilid}->[$i]->{'_total'}); |
if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { |
if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { |
push (@{$PlotData[$i]->{$option}},0); |
push (@{$PlotData[$i]->{$option}},0); |
} else { |
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if ($ResponseData{$foilid}->[$i]->{'_total'} == |
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$ResponseData{$foilid}->[$i]->{'_correct'}) { |
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push(@{$PlotData[$i]->{$option}},0); |
} else { |
} else { |
push (@{$PlotData[$i]->{$option}}, |
push (@{$PlotData[$i]->{$option}}, |
100 * $ResponseData{$foilid}->[$i]->{$option} / |
100 * $ResponseData{$foilid}->[$i]->{$option} / |
$ResponseData{$foilid}->[$i]->{'_total'}); |
($ResponseData{$foilid}->[$i]->{'_total'} - |
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$ResponseData{$foilid}->[$i]->{'_correct'})); |
} |
} |
} |
} |
} |
} |
} |
} |
} else { |
} |
# Concept analysis |
# |
# |
# Build a table for the plots |
# Note: we do not bother with characterizing the students incorrect |
my $analysis_html = "<table>\n"; |
# answers at the concept level because an incorrect answer for one foil |
my $foilkey = &build_option_index($ORdata); |
# may be a correct answer for another foil. |
for (my $i=$mintries;$i<=$maxtries;$i++) { |
$extrakey = ''; |
my $count = $ResponseData{'_total'}->[$i]; |
$xlabel = 'Concept Number'; |
if ($count == 0) { |
$ylabel = 'Percent Correct'; |
$count = 'no submissions'; |
my %ConceptData; |
} elsif ($count == 1) { |
foreach my $concept (@{$Concepts}) { |
$count = '1 submission'; |
for (my $i=$mintries;$i<=$maxtries;$i++) { |
} else { |
# |
$count = $count.' submissions'; |
# Gather the per-attempt data |
} |
my $cdata = $ConceptData{$concept}->[$i]; |
my $title = 'Attempt '.$i.', '.$count; |
foreach my $foilid (@{$concept->{'foils'}}) { |
my @Datasets; |
$cdata->{'_correct'} += |
foreach my $option ('_correct',@{$ORdata->{'Options'}}) { |
$ResponseData{$foilid}->[$i]->{'_correct'}; |
next if (! exists($PlotData[$i]->{$option})); |
$cdata->{'_total'} += |
push(@Datasets,$PlotData[$i]->{$option}); |
$ResponseData{$foilid}->[$i]->{'_total'}; |
} |
} |
my $correctgraph = &Apache::loncommon::DrawGraph |
push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'}); |
($title,'Foil Number','Percent Correct', |
if ($cdata->{'_total'} == 0) { |
100,$plotcolors,$Datasets[0]); |
push (@{$PlotData[$i]->{'_correct'}},0); |
$analysis_html.= '<tr><td>'.$correctgraph.'</td>'; |
} else { |
## |
push (@{$PlotData[$i]->{'_correct'}}, |
## |
100*$cdata->{'_correct'}/$cdata->{'_total'}); |
for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) { |
} |
$Datasets[0]->[$i]=0; |
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} |
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$count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i]; |
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if ($count == 0) { |
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$count = 'no submissions'; |
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} elsif ($count == 1) { |
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$count = '1 submission'; |
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} else { |
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$count = $count.' submissions'; |
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} |
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$title = 'Attempt '.$i.', '.$count; |
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my $incorrectgraph = &Apache::loncommon::DrawGraph |
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($title,'Foil Number','% Option Chosen Incorrectly', |
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100,$plotcolors,@Datasets); |
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$analysis_html.= '<td>'.$incorrectgraph.'</td>'; |
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$analysis_html.= '<td>'.$foilkey."<td></tr>\n"; |
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} |
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$analysis_html .= "</table>\n"; |
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return $analysis_html; |
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} |
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sub Tries_Concept_Analysis { |
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my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_; |
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my %ResponseData = %$respdat; |
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my $analysis_html = "<table>\n"; |
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# |
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# Compute the data neccessary to make the plots |
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my @PlotData; |
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# Concept analysis |
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# |
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# Note: we do not bother with characterizing the students incorrect |
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# answers at the concept level because an incorrect answer for one foil |
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# may be a correct answer for another foil. |
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my %ConceptData; |
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foreach my $concept (@{$Concepts}) { |
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for (my $i=$mintries;$i<=$maxtries;$i++) { |
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# |
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# Gather the per-attempt data |
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my $cdata = $ConceptData{$concept}->[$i]; |
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foreach my $foilid (@{$concept->{'foils'}}) { |
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$cdata->{'_correct'} += |
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$ResponseData{$foilid}->[$i]->{'_correct'}; |
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$cdata->{'_total'} += |
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$ResponseData{$foilid}->[$i]->{'_total'}; |
} |
} |
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push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'}); |
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if ($cdata->{'_total'} == 0) { |
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push (@{$PlotData[$i]->{'_correct'}},0); |
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} else { |
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push (@{$PlotData[$i]->{'_correct'}}, |
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100*$cdata->{'_correct'}/$cdata->{'_total'}); |
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} |
} |
} |
} # End of work to fill @PlotData |
} |
# |
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# Build a table for the plots |
# Build a table for the plots |
$table .= "<table>\n"; |
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my @Plots; |
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for (my $i=$mintries;$i<=$maxtries;$i++) { |
for (my $i=$mintries;$i<=$maxtries;$i++) { |
my $minstu = $PlotData[$i]->{'_total'}->[0]; |
my $minstu = $PlotData[$i]->{'_total'}->[0]; |
my $maxstu = $PlotData[$i]->{'_total'}->[0]; |
my $maxstu = $PlotData[$i]->{'_total'}->[0]; |
Line 374 sub tries_analysis {
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Line 461 sub tries_analysis {
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$maxstu = 0 if (! defined($maxstu)); |
$maxstu = 0 if (! defined($maxstu)); |
$minstu = 0 if (! defined($minstu)); |
$minstu = 0 if (! defined($minstu)); |
my $title; |
my $title; |
if ($maxstu == $minstu) { |
my $count = $ResponseData{'_total'}->[$i]; |
$title = 'Attempt '.$i.', '.$maxstu.' students'; |
if ($count == 0) { |
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$count = 'no submissions'; |
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} elsif ($count == 1) { |
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$count = '1 submission'; |
} else { |
} else { |
$title = 'Attempt '.$i.', '.$minstu.'-'.$maxstu.' students'; |
$count = $count.' submissions'; |
} |
} |
my @Datasets; |
$title = 'Attempt '.$i.', '.$count; |
foreach my $option ('_correct',@{$ORdata->{'Options'}}) { |
my $graphlink = &Apache::loncommon::DrawGraph |
next if (! exists($PlotData[$i]->{$option})); |
($title,'Concept Number','Percent Correct', |
push(@Datasets,$PlotData[$i]->{$option}); |
100,$plotcolors,$PlotData[$i]->{'_correct'}); |
} |
$analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n"; |
my $graphlink = &Apache::loncommon::DrawGraph($title, |
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$xlabel, |
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$ylabel, |
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100, |
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$plotcolors, |
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@Datasets); |
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push(@Plots,$graphlink); |
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} |
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# |
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# Should this be something the user can set? Too many dialogs! |
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while (my $plotlink = shift(@Plots)) { |
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$table .= '<tr><td>'.$plotlink.'</td><td>'.$extrakey."</td></tr>\n"; |
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} |
} |
$table .= "</table>\n"; |
$analysis_html .= "</table>\n"; |
return ($table); |
return $analysis_html; |
} |
} |
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sub analyze_option_data_by_tries { |
sub analyze_option_data_by_tries { |
my ($PerformanceData,$mintries,$maxtries) = @_; |
my ($r,$PerformanceData,$mintries,$maxtries) = @_; |
my %Trydata; |
my %Trydata; |
$mintries = 1 if (! defined($mintries) || $mintries < 1); |
$mintries = 1 if (! defined($mintries) || $mintries < 1); |
$maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries); |
$maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries); |
foreach my $row (@$PerformanceData) { |
foreach my $row (@$PerformanceData) { |
next if (! defined($row)); |
next if (! defined($row)); |
my ($grading,$submission,$time,$tries) = @$row; |
my $tries = &get_tries_from_row($row); |
next if ($grading eq 'MISSING_ANSWER'); |
my %Row = &Process_Row($row); |
my @Foilgrades = split('&',$grading); |
next if (! %Row); |
my @Foilsubs = split('&',$submission); |
while (my ($foilid,$href) = each(%Row)) { |
for (my $numtries = 1; $numtries <= $maxtries; $numtries++) { |
if (! ref($href)) { |
if ($tries == $numtries) { |
$Trydata{$foilid}->[$tries] += $href; |
for (my $i=0;$i<=$#Foilgrades;$i++) { |
next; |
my ($foilid,$correct) = split('=',$Foilgrades[$i]); |
} |
my (undef,$submission) = split('=',$Foilsubs[$i]); |
while (my ($option,$value) = each(%$href)) { |
$submission = &HTML::Entities::decode($submission); |
$Trydata{$foilid}->[$tries]->{$option}+=$value; |
$submission =~ s/\%20/ /g; |
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if ($correct) { |
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$Trydata{$foilid}->[$numtries]->{'_correct'}++; |
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} else { |
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$Trydata{$foilid}->[$numtries]->{$submission}++; |
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} |
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$Trydata{$foilid}->[$numtries]->{'_total'}++; |
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} |
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} |
} |
} |
} |
} |
} |
Line 441 sub analyze_option_data_by_tries {
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Line 511 sub analyze_option_data_by_tries {
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######################################################### |
######################################################### |
sub time_analysis { |
sub time_analysis { |
my ($PerformanceData,$ORdata) = @_; |
my ($PerformanceData,$ORdata) = @_; |
my $num_plots = $ENV{'form.NumPlots'}; |
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my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); |
my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); |
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if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { |
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$table = '<h3>'. |
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&mt('Not enough data for concept analysis. '. |
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'Performing Foil Analysis'). |
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'</h3>'.$table; |
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$ENV{'form.AnalyzeAs'} = 'Foils'; |
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} |
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my $num_plots = $ENV{'form.NumPlots'}; |
my $num_data = scalar(@$PerformanceData)-1; |
my $num_data = scalar(@$PerformanceData)-1; |
my $percent = sprintf('%2f',100/$num_plots); |
my $percent = sprintf('%2f',100/$num_plots); |
my $extratable = ''; |
# |
if ($ENV{'form.AnalyzeAs'} eq 'Foils') { |
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$extratable = &build_option_index($ORdata); |
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} |
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$table .= "<table>\n"; |
$table .= "<table>\n"; |
for (my $i=0;$i<$num_plots;$i++) { |
for (my $i=0;$i<$num_plots;$i++) { |
|
## |
my $starttime = &Apache::lonhtmlcommon::get_date_from_form |
my $starttime = &Apache::lonhtmlcommon::get_date_from_form |
('startdate_'.$i); |
('startdate_'.$i); |
my $endtime = &Apache::lonhtmlcommon::get_date_from_form |
my $endtime = &Apache::lonhtmlcommon::get_date_from_form |
('enddate_'.$i); |
('enddate_'.$i); |
my ($begin_index,$end_index,$plottitle,$plothtml,$data); |
|
if (! defined($starttime) || ! defined($endtime)) { |
if (! defined($starttime) || ! defined($endtime)) { |
$begin_index = $i*int($num_data/$num_plots); |
my $sec_in_day = 86400; |
$end_index = ($i+1)*int($num_data/$num_plots); |
my $last_sub_time = &get_time_from_row($PerformanceData->[-1]); |
my $lownum = sprintf('%2.1f',$i*$percent); |
my ($sday,$smon,$syear); |
$lownum =~ s/(\.0)$//; |
(undef,undef,undef,$sday,$smon,$syear) = |
my $highnum = sprintf('%2.1f',($i+1)*$percent); |
localtime($last_sub_time - $sec_in_day*$i); |
$highnum =~ s/(\.0)$//; |
$starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear); |
$plottitle = $lownum.'% to '.$highnum.'% of submissions'; |
$endtime = $starttime + $sec_in_day; |
} else { |
if ($i == ($num_plots -1 )) { |
my $j; |
$starttime = &get_time_from_row($PerformanceData->[0]); |
while (++$j < scalar(@$PerformanceData)) { |
} |
last if ($PerformanceData->[$j]->[2] > $starttime); |
} |
} |
|
$begin_index = $j; |
|
while (++$j < scalar(@$PerformanceData)) { |
|
last if ($PerformanceData->[$j]->[2] > $endtime); |
|
} |
|
$end_index = $j; |
|
$plottitle = $ENV{'form.plottitle_'.$i}; |
|
} |
|
($plothtml,$starttime,$endtime,$data) = |
|
&analyze_option_data_by_time($PerformanceData, |
|
$begin_index,$end_index, |
|
$plottitle,$Foils, |
|
$Concepts,$ORdata); |
|
my $startdateform = &Apache::lonhtmlcommon::date_setter |
my $startdateform = &Apache::lonhtmlcommon::date_setter |
('Statistics','startdate_'.$i,$starttime); |
('Statistics','startdate_'.$i,$starttime); |
my $enddateform = &Apache::lonhtmlcommon::date_setter |
my $enddateform = &Apache::lonhtmlcommon::date_setter |
('Statistics','enddate_'.$i,$endtime); |
('Statistics','enddate_'.$i,$endtime); |
$table.="<tr><td>".$plothtml.'</td><td align="left" valign="top">'. |
# |
"<b>Start Time</b>: ".$startdateform."<br />". |
my $begin_index; |
"<b>End Time</b> : "." ".$enddateform."<br />". |
my $end_index; |
'<b>Plot Title</b> :'.(" "x3). |
my $j; |
'<input type="text" size="30" name="plottitle_'.$i.'" value="'. |
while (++$j < scalar(@$PerformanceData)) { |
&HTML::Entities::encode($plottitle).'" /><br />'.$extratable. |
last if (&get_time_from_row($PerformanceData->[$j]) > $starttime); |
"</td></tr>\n"; |
} |
|
$begin_index = $j; |
|
while (++$j < scalar(@$PerformanceData)) { |
|
last if (&get_time_from_row($PerformanceData->[$j]) > $endtime); |
|
} |
|
$end_index = $j; |
|
## |
|
my $interval = { |
|
begin_index => $begin_index, |
|
end_index => $end_index, |
|
startdateform => $startdateform, |
|
enddateform => $enddateform, |
|
}; |
|
if ($ENV{'form.AnalyzeAs'} eq 'Foils') { |
|
$table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils, |
|
$interval); |
|
} else { |
|
$table .= &Concept_Time_Analysis($PerformanceData,$ORdata, |
|
$Concepts,$interval); |
|
} |
} |
} |
$table .="</table>\n"; |
# |
return $table; |
return $table; |
} |
} |
|
|
sub analyze_option_data_by_time { |
sub Foil_Time_Analysis { |
my ($PerformanceData,$begin_index, |
my ($PerformanceData,$ORdata,$Foils,$interval) = @_; |
$end_index,$description,$Foils,$Concepts,$ORdata) = @_; |
my $analysis_html; |
|
my $foilkey = &build_option_index($ORdata); |
|
my ($begin_index,$end_index) = ($interval->{'begin_index'}, |
|
$interval->{'end_index'}); |
my %TimeData; |
my %TimeData; |
# |
# |
# Get the start and end times for this segment of the plot |
|
my $starttime = $PerformanceData->[$begin_index]->[2]; |
|
my $endtime = $PerformanceData->[$end_index ]->[2]; |
|
# |
|
# Compute the number getting the foils correct or incorrects |
# Compute the number getting the foils correct or incorrects |
for (my $i=$begin_index;$i<=$end_index;$i++) { |
for (my $j=$begin_index;$j<=$end_index;$j++) { |
my $row = $PerformanceData->[$i]; |
my $row = $PerformanceData->[$j]; |
next if (! defined($row)); |
next if (! defined($row)); |
my ($grading,$submission,$time,$tries) = @$row; |
my %Row = &Process_Row($row); |
next if ($grading eq 'MISSING_ANSWER'); |
while (my ($foilid,$href) = each(%Row)) { |
my @Foilgrades = split('&',$grading); |
if (! ref($href)) { |
my @Foilsubs = split('&',$submission); |
$TimeData{$foilid} += $href; |
for (my $j=0;$j<=$#Foilgrades;$j++) { |
next; |
my ($foilid,$correct) = split('=',$Foilgrades[$j]); |
} |
my (undef,$submission) = split('=',$Foilsubs[$j]); |
while (my ($option,$value) = each(%$href)) { |
if ($correct) { |
$TimeData{$foilid}->{$option}+=$value; |
$TimeData{$foilid}->{'_correct'}++; |
|
} else { |
|
$submission = &HTML::Entities::decode($submission); |
|
$submission =~ s/\%20/ /g; |
|
$TimeData{$foilid}->{$submission}++; |
|
} |
} |
$TimeData{$foilid}->{'_total'}++; |
|
} |
} |
} |
} |
# |
|
# Compute the total and percent correct |
|
my @Plotdata; |
my @Plotdata; |
my ($xlabel,$ylabel); |
foreach my $foil (@$Foils) { |
if ($ENV{'form.AnalyzeAs'} eq 'Foils') { |
my $total = $TimeData{$foil}->{'_total'}; |
$xlabel = 'Foil Number'; |
if ($total == 0) { |
$ylabel = 'Option Chosen'; |
push(@{$Plotdata[0]},0); |
foreach my $foil (@$Foils) { |
} else { |
my $total = $TimeData{$foil}->{'_total'}; |
push(@{$Plotdata[0]}, |
my $optionidx = 0; |
100 * $TimeData{$foil}->{'_correct'} / $total); |
foreach my $option ('_correct',@{$ORdata->{'Options'}}) { |
} |
if ($total > 0) { |
my $total_incorrect = $total - $TimeData{$foil}->{'_correct'}; |
push(@{$Plotdata[$optionidx]}, |
my $optionidx = 1; |
100 * $TimeData{$foil}->{$option} / $total); |
foreach my $option (@{$ORdata->{'Options'}}) { |
} else { |
if ($total_incorrect == 0) { |
push(@{$Plotdata[$optionidx]},0); |
push(@{$Plotdata[$optionidx]},0); |
} |
} else { |
} continue { |
push(@{$Plotdata[$optionidx]}, |
$optionidx++; |
100 * $TimeData{$foil}->{$option} / $total_incorrect); |
} |
} |
|
} continue { |
|
$optionidx++; |
} |
} |
|
} |
|
# |
|
# Create the plot |
|
my $count = $end_index-$begin_index; |
|
my $title; |
|
if ($count == 0) { |
|
$title = 'no submissions'; |
|
} elsif ($count == 1) { |
|
$title = 'one submission'; |
|
} else { |
|
$title = $count.' submissions'; |
|
} |
|
my $correctplot = &Apache::loncommon::DrawGraph($title, |
|
'Foil Number', |
|
'Percent Correct', |
|
100, |
|
$plotcolors, |
|
$Plotdata[0]); |
|
for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) { |
|
$Plotdata[0]->[$j]=0; |
|
} |
|
$count = $end_index-$begin_index-$TimeData{'_correct'}; |
|
if ($count == 0) { |
|
$title = 'no submissions'; |
|
} elsif ($count == 1) { |
|
$title = 'one submission'; |
} else { |
} else { |
$xlabel = 'Concept Number'; |
$title = $count.' submissions'; |
$ylabel = 'Percent Correct'; |
} |
foreach my $concept (@$Concepts) { |
my $incorrectplot = &Apache::loncommon::DrawGraph($title, |
my $correct; |
'Foil Number', |
my $total; |
'Incorrect Option Choice', |
foreach my $foil (@{$concept->{'foils'}}) { |
100, |
$correct+=$TimeData{$foil}->{'_correct'}; |
$plotcolors, |
$total +=$TimeData{$foil}->{'_total'}; |
@Plotdata); |
|
$analysis_html.='<tr>'. |
|
'<td>'.$correctplot.'</td>'. |
|
'<td>'.$incorrectplot.'</td>'. |
|
'<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n"; |
|
$analysis_html.= '<tr>'.'<td colspan="3">'. |
|
'<b>Start Time</b>:'. |
|
' '.$interval->{'startdateform'}.'<br />'. |
|
'<b>End Time</b> : '. |
|
' '.$interval->{'enddateform'}.'<br />'. |
|
# '<b>Plot Title</b> :'. |
|
# (" "x3).$interval->{'titleform'}. |
|
'</td>'. |
|
"</tr>\n"; |
|
return $analysis_html; |
|
} |
|
|
|
sub Concept_Time_Analysis { |
|
my ($PerformanceData,$ORdata,$Concepts,$interval) = @_; |
|
my $analysis_html; |
|
## |
|
## Determine starttime, endtime, startindex, endindex |
|
my ($begin_index,$end_index) = ($interval->{'begin_index'}, |
|
$interval->{'end_index'}); |
|
my %TimeData; |
|
# |
|
# Compute the number getting the foils correct or incorrects |
|
for (my $j=$begin_index;$j<=$end_index;$j++) { |
|
my $row = $PerformanceData->[$j]; |
|
next if (! defined($row)); |
|
my %Row = &Process_Row($row); |
|
while (my ($foilid,$href) = each(%Row)) { |
|
if (! ref($href)) { |
|
$TimeData{$foilid} += $href; |
|
next; |
} |
} |
if ($total > 0) { |
while (my ($option,$value) = each(%$href)) { |
push(@{$Plotdata[0]},100 * $correct / $total); |
$TimeData{$foilid}->{$option}+=$value; |
} else { |
|
push(@{$Plotdata[0]},0); |
|
} |
} |
} |
} |
} |
} |
# |
# |
|
# Put the data in plottable form |
|
my @Plotdata; |
|
foreach my $concept (@$Concepts) { |
|
my ($total,$correct); |
|
foreach my $foil (@{$concept->{'foils'}}) { |
|
$total += $TimeData{$foil}->{'_total'}; |
|
$correct += $TimeData{$foil}->{'_correct'}; |
|
} |
|
if ($total == 0) { |
|
push(@Plotdata,0); |
|
} else { |
|
push(@Plotdata,100 * $correct / $total); |
|
} |
|
} |
|
# |
# Create the plot |
# Create the plot |
my $graphlink = &Apache::loncommon::DrawGraph |
my $title = ($end_index - $begin_index).' submissions'; |
($description,#'Time Interval Analysis', |
my $correctplot = &Apache::loncommon::DrawGraph($title, |
$xlabel, |
'Concept Number', |
$ylabel, |
'Percent Correct', |
100, |
100, |
$plotcolors, |
$plotcolors, |
@Plotdata); |
\@Plotdata); |
|
$analysis_html.='<tr>'. |
|
'<td>'.$correctplot.'</td>'. |
|
'<td align="left" valign="top">'. |
|
'<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'. |
|
'<b>End Time</b> : '. |
|
' '.$interval->{'enddateform'}.'<br />'. |
|
# '<b>Plot Title</b> :'.(" "x3). |
|
# $interval->{'titleform'}. |
|
'</td>'. |
|
"</tr>\n"; |
|
return $analysis_html; |
|
} |
|
|
|
######################################################### |
|
######################################################### |
|
## |
|
## Excel output |
|
## |
|
######################################################### |
|
######################################################### |
|
sub prepare_excel_sheet { |
|
my ($r,$resource,$PerformanceData,$ORdata) = @_; |
|
my $response = ''; |
|
my (undef,$Foils,$Concepts) = &build_foil_index($ORdata); |
|
# |
|
# Create excel worksheet |
|
my $filename = '/prtspool/'. |
|
$ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. |
|
time.'_'.rand(1000000000).'.xls'; |
|
my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename); |
|
if (! defined($workbook)) { |
|
$r->log_error("Error creating excel spreadsheet $filename: $!"); |
|
$r->print('<p>'.&mt("Unable to create new Excel file. ". |
|
"This error has been logged. ". |
|
"Please alert your LON-CAPA administrator"). |
|
'</p>'); |
|
return undef; |
|
} |
|
# |
|
$workbook->set_tempdir('/home/httpd/perl/tmp'); |
|
# |
|
# Define some potentially useful formats |
|
my $format; |
|
$format->{'header'} = $workbook->add_format(bold => 1, |
|
bottom => 1, |
|
align => 'center'); |
|
$format->{'bold'} = $workbook->add_format(bold=>1); |
|
$format->{'h1'} = $workbook->add_format(bold=>1, size=>18); |
|
$format->{'h2'} = $workbook->add_format(bold=>1, size=>16); |
|
$format->{'h3'} = $workbook->add_format(bold=>1, size=>14); |
|
$format->{'date'} = $workbook->add_format(num_format=> |
|
'mmm d yyyy hh:mm AM/PM'); |
|
# |
|
# Create and populate main worksheets |
|
my $problem_data_sheet = $workbook->addworksheet('Problem Data'); |
|
my $student_data_sheet = $workbook->addworksheet('Student Data'); |
|
my $response_data_sheet = $workbook->addworksheet('Response Data'); |
|
foreach my $sheet ($problem_data_sheet,$student_data_sheet, |
|
$response_data_sheet) { |
|
$sheet->write(0,0,$resource->{'title'},$format->{'h2'}); |
|
$sheet->write(1,0,$resource->{'src'},$format->{'h3'}); |
|
} |
|
# |
|
my $result; |
|
$result = &build_problem_data_worksheet($problem_data_sheet,$format, |
|
$Concepts,$ORdata); |
|
if ($result ne 'okay') { |
|
# Do something useful |
|
} |
|
$result = &build_student_data_worksheet($student_data_sheet,$format); |
|
if ($result ne 'okay') { |
|
# Do something useful |
|
} |
|
$result = &build_response_data_worksheet($response_data_sheet,$format, |
|
$PerformanceData,$Foils, |
|
$ORdata); |
|
if ($result ne 'okay') { |
|
# Do something useful |
|
} |
|
$response_data_sheet->activate(); |
|
# |
|
# Close the excel file |
|
$workbook->close(); |
|
# |
|
# Write a link to allow them to download it |
|
$result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'. |
|
'<p><a href="'.$filename.'">'. |
|
&mt('Your Excel spreadsheet.'). |
|
'</a></p>'."\n"; |
|
return $result; |
|
} |
|
|
|
sub build_problem_data_worksheet { |
|
my ($worksheet,$format,$Concepts,$ORdata) = @_; |
|
my $rows_output = 3; |
|
my $cols_output = 0; |
|
$worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'}); |
|
## |
|
## |
|
my @Headers; |
|
if (@$Concepts > 1) { |
|
@Headers = ("Concept\nNumber",'Concept',"Foil\nNumber", |
|
'Foil Name','Foil Text','Correct value'); |
|
} else { |
|
@Headers = ('Foil Number','FoilName','Foil Text','Correct value'); |
|
} |
|
$worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); |
|
my %Foildata = %{$ORdata->{'Foils'}}; |
|
my $conceptindex = 1; |
|
my $foilindex = 1; |
|
foreach my $concept (@$Concepts) { |
|
my @FoilsInConcept = @{$concept->{'foils'}}; |
|
my $firstfoil = shift(@FoilsInConcept); |
|
if (@$Concepts > 1) { |
|
$worksheet->write_row($rows_output++,0, |
|
[$conceptindex, |
|
$concept->{'name'}, |
|
$foilindex++, |
|
$Foildata{$firstfoil}->{'name'}, |
|
$Foildata{$firstfoil}->{'text'}, |
|
$Foildata{$firstfoil}->{'value'},]); |
|
} else { |
|
$worksheet->write_row($rows_output++,0, |
|
[ $foilindex++, |
|
$Foildata{$firstfoil}->{'name'}, |
|
$Foildata{$firstfoil}->{'text'}, |
|
$Foildata{$firstfoil}->{'value'},]); |
|
} |
|
foreach my $foilid (@FoilsInConcept) { |
|
if (@$Concepts > 1) { |
|
$worksheet->write_row($rows_output++,0, |
|
['', |
|
'', |
|
$foilindex, |
|
$Foildata{$foilid}->{'name'}, |
|
$Foildata{$foilid}->{'text'}, |
|
$Foildata{$foilid}->{'value'},]); |
|
} else { |
|
$worksheet->write_row($rows_output++,0, |
|
[$foilindex, |
|
$Foildata{$foilid}->{'name'}, |
|
$Foildata{$foilid}->{'text'}, |
|
$Foildata{$foilid}->{'value'},]); |
|
} |
|
} continue { |
|
$foilindex++; |
|
} |
|
} continue { |
|
$conceptindex++; |
|
} |
|
$rows_output++; |
|
$rows_output++; |
|
## |
|
## Option data output |
|
$worksheet->write($rows_output++,0,'Options',$format->{'header'}); |
|
foreach my $string (@{$ORdata->{'Options'}}) { |
|
$worksheet->write($rows_output++,0,$string); |
|
} |
|
return 'okay'; |
|
} |
|
|
|
sub build_student_data_worksheet { |
|
my ($worksheet,$format) = @_; |
|
my $rows_output = 3; |
|
my $cols_output = 0; |
|
$worksheet->write($rows_output++,0,'Student Data',$format->{'h3'}); |
|
my @Headers = ('full name','username','domain','section', |
|
"student\nnumber",'identifier'); |
|
$worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); |
|
my @Students = @Apache::lonstatistics::Students; |
|
my $studentrows = &Apache::loncoursedata::get_student_data(\@Students); |
|
my %ids; |
|
foreach my $row (@$studentrows) { |
|
my ($mysqlid,$student) = @$row; |
|
$ids{$student}=$mysqlid; |
|
} |
|
foreach my $student (@Students) { |
|
my $name_domain = $student->{'username'}.':'.$student->{'domain'}; |
|
$worksheet->write_row($rows_output++,0, |
|
[$student->{'fullname'}, |
|
$student->{'username'},$student->{'domain'}, |
|
$student->{'section'},$student->{'id'}, |
|
$ids{$name_domain}]); |
|
} |
|
return; |
|
} |
|
|
|
sub build_response_data_worksheet { |
|
my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_; |
|
my $rows_output = 3; |
|
my $cols_output = 0; |
|
$worksheet->write($rows_output++,0,'Response Data',$format->{'h3'}); |
|
$worksheet->set_column(1,1,20); |
|
$worksheet->set_column(2,2,13); |
|
my @Headers = ('identifier','time','award detail','attempt'); |
|
foreach my $foil (@$Foils) { |
|
push (@Headers,$foil.' submission'); |
|
push (@Headers,$foil.' grading'); |
|
} |
|
$worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); |
# |
# |
return ($graphlink,$starttime,$endtime,\%TimeData); |
foreach my $row (@$PerformanceData) { |
|
next if (! defined($row)); |
|
my ($student,$award,$grading,$submission,$time,$tries) = @$row; |
|
my @Foilgrades = split('&',$grading); |
|
my @Foilsubs = split('&',$submission); |
|
my %ResponseData; |
|
for (my $j=0;$j<=$#Foilgrades;$j++) { |
|
my ($foilid,$correct) = split('=',$Foilgrades[$j]); |
|
my (undef,$submission) = split('=',$Foilsubs[$j]); |
|
$submission = &Apache::lonnet::unescape($submission); |
|
$ResponseData{$foilid.' submission'}=$submission; |
|
$ResponseData{$foilid.' award'}=$correct; |
|
} |
|
$worksheet->write($rows_output,$cols_output++,$student); |
|
$worksheet->write($rows_output,$cols_output++, |
|
&calc_serial($time),$format->{'date'}); |
|
$worksheet->write($rows_output,$cols_output++,$award); |
|
$worksheet->write($rows_output,$cols_output++,$tries); |
|
foreach my $foilid (@$Foils) { |
|
$worksheet->write($rows_output,$cols_output++, |
|
$ResponseData{$foilid.' submission'}); |
|
$worksheet->write($rows_output,$cols_output++, |
|
$ResponseData{$foilid.' award'}); |
|
} |
|
$rows_output++; |
|
$cols_output = 0; |
|
} |
|
return; |
|
} |
|
|
|
|
|
## |
|
## The following is copied from datecalc1.pl, part of the |
|
## Spreadsheet::WriteExcel CPAN module. |
|
## |
|
## |
|
###################################################################### |
|
# |
|
# Demonstration of writing date/time cells to Excel spreadsheets, |
|
# using UNIX/Perl time as source of date/time. |
|
# |
|
# Copyright 2000, Andrew Benham, adsb@bigfoot.com |
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# |
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###################################################################### |
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# |
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# UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970) |
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# measured in seconds. |
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# |
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# An Excel file can use exactly one of two different date/time systems. |
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# In these systems, a floating point number represents the number of days |
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# (and fractional parts of the day) since a start point. The floating point |
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# number is referred to as a 'serial'. |
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# The two systems ('1900' and '1904') use different starting points: |
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# '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as |
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# a leap year - see: |
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# http://support.microsoft.com/support/kb/articles/Q181/3/70.asp |
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# for the excuse^H^H^H^H^H^Hreason. |
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# '1904'; '1.00' is 2 Jan 1904. |
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# |
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# The '1904' system is the default for Apple Macs. Windows versions of |
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# Excel have the option to use the '1904' system. |
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# |
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# Note that Visual Basic's "DateSerial" function does NOT erroneously |
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# regard 1900 as a leap year, and thus its serials do not agree with |
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# the 1900 serials of Excel for dates before 1 Mar 1900. |
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# |
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# Note that StarOffice (at least at version 5.2) does NOT erroneously |
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# regard 1900 as a leap year, and thus its serials do not agree with |
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# the 1900 serials of Excel for dates before 1 Mar 1900. |
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# |
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###################################################################### |
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# |
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# Calculation description |
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# ======================= |
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# |
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# 1900 system |
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# ----------- |
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# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900. |
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# Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) |
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# were leap years with an extra day. |
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# Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and |
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# 1 Jan 1970. |
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# In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year |
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# 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'. |
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# |
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# 1904 system |
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# ----------- |
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# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904. |
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# Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) |
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# were leap years with an extra day. |
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# Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and |
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# 1 Jan 1970. |
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# In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'. |
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# |
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###################################################################### |
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# |
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# Copyright (c) 2000, Andrew Benham. |
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# This program is free software. It may be used, redistributed and/or |
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# modified under the same terms as Perl itself. |
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# |
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# Andrew Benham, adsb@bigfoot.com |
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# London, United Kingdom |
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# 11 Nov 2000 |
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# |
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###################################################################### |
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# Use 1900 date system on all platforms other than Apple Mac (for which |
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# use 1904 date system). |
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my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0; |
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#----------------------------------------------------------- |
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# calc_serial() |
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# |
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# Called with (up to) 2 parameters. |
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# 1. Unix timestamp. If omitted, uses current time. |
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# 2. GMT flag. Set to '1' to return serial in GMT. |
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# If omitted, returns serial in appropriate timezone. |
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# |
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# Returns date/time serial according to $DATE_SYSTEM selected |
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#----------------------------------------------------------- |
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sub calc_serial { |
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my $time = (defined $_[0]) ? $_[0] : time(); |
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my $gmtflag = (defined $_[1]) ? $_[1] : 0; |
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# Divide timestamp by number of seconds in a day. |
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# This gives a date serial with '0' on 1 Jan 1970. |
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my $serial = $time / 86400; |
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# Adjust the date serial by the offset appropriate to the |
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# currently selected system (1900/1904). |
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if ($DATE_SYSTEM == 0) { # use 1900 system |
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$serial += 25569; |
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} else { # use 1904 system |
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$serial += 24107; |
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} |
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unless ($gmtflag) { |
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# Now have a 'raw' serial with the right offset. But this |
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# gives a serial in GMT, which is false unless the timezone |
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# is GMT. We need to adjust the serial by the appropriate |
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# timezone offset. |
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# Calculate the appropriate timezone offset by seeing what |
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# the differences between localtime and gmtime for the given |
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# time are. |
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my @gmtime = gmtime($time); |
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my @ltime = localtime($time); |
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# For the first 7 elements of the two arrays, adjust the |
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# date serial where the elements differ. |
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for (0 .. 6) { |
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my $diff = $ltime[$_] - $gmtime[$_]; |
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if ($diff) { |
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$serial += _adjustment($diff,$_); |
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} |
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} |
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} |
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# Perpetuate the error that 1900 was a leap year by decrementing |
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# the serial if we're using the 1900 system and the date is prior to |
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# 1 Mar 1900. This has the effect of making serial value '60' |
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# 29 Feb 1900. |
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# This fix only has any effect if UNIX/Perl time on the platform |
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# can represent 1900. Many can't. |
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unless ($DATE_SYSTEM) { |
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$serial-- if ($serial < 61); # '61' is 1 Mar 1900 |
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} |
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return $serial; |
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} |
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sub _adjustment { |
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# Based on the difference in the localtime/gmtime array elements |
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# number, return the adjustment required to the serial. |
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# We only look at some elements of the localtime/gmtime arrays: |
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# seconds unlikely to be different as all known timezones |
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# have an offset of integral multiples of 15 minutes, |
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# but it's easy to do. |
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# minutes will be different for timezone offsets which are |
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# not an exact number of hours. |
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# hours very likely to be different. |
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# weekday will differ when localtime/gmtime difference |
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# straddles midnight. |
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# |
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# Assume that difference between localtime and gmtime is less than |
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# 5 days, then don't have to do maths for day of month, month number, |
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# year number, etc... |
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my ($delta,$element) = @_; |
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my $adjust = 0; |
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if ($element == 0) { # Seconds |
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$adjust = $delta/86400; # 60 * 60 * 24 |
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} elsif ($element == 1) { # Minutes |
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$adjust = $delta/1440; # 60 * 24 |
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} elsif ($element == 2) { # Hours |
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$adjust = $delta/24; # 24 |
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} elsif ($element == 6) { # Day of week number |
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# Catch difference straddling Sat/Sun in either direction |
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$delta += 7 if ($delta < -4); |
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$delta -= 7 if ($delta > 4); |
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$adjust = $delta; |
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} |
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return $adjust; |
} |
} |
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######################################################### |
######################################################### |
Line 677 sub CreateInterface {
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Line 1229 sub CreateInterface {
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## |
## |
$Str .= '</tr>'."\n"; |
$Str .= '</tr>'."\n"; |
$Str .= '</table>'."\n"; |
$Str .= '</table>'."\n"; |
return ($Str); |
return $Str; |
} |
} |
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sub OptionResponseProblemSelector { |
sub OptionResponseProblemSelector { |
Line 749 sub get_resource_from_symb {
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Line 1301 sub get_resource_from_symb {
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return undef; |
return undef; |
} |
} |
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sub get_time_from_row { |
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my ($row) = @_; |
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if (ref($row)) { |
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return $row->[3]; |
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} |
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return undef; |
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} |
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sub get_tries_from_row { |
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my ($row) = @_; |
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if (ref($row)) { |
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return $row->[5]; |
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} |
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return undef; |
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} |
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sub Process_Row { |
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my ($row) = @_; |
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my %RowData; |
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my ($student_id,$award,$grading,$submission,$time,$tries) = @$row; |
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return undef if ($award eq 'MISSING_ANSWER'); |
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if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { |
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$RowData{'_correct'} = 1; |
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} |
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$RowData{'_total'} = 1; |
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my @Foilgrades = split('&',$grading); |
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my @Foilsubs = split('&',$submission); |
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for (my $j=0;$j<=$#Foilgrades;$j++) { |
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my ($foilid,$correct) = split('=',$Foilgrades[$j]); |
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my (undef,$submission) = split('=',$Foilsubs[$j]); |
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if ($correct) { |
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$RowData{$foilid}->{'_correct'}++; |
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} else { |
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$submission = &Apache::lonnet::unescape($submission); |
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$RowData{$foilid}->{$submission}++; |
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} |
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$RowData{$foilid}->{'_total'}++; |
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} |
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return %RowData; |
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} |
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## |
## |
## get problem data and put it into a useful data structure. |
## get problem data and put it into a useful data structure. |
## note: we must force each foil and option to not begin or end with |
## note: we must force each foil and option to not begin or end with |
Line 767 sub get_problem_data {
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Line 1360 sub get_problem_data {
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$key =~ s/^$part\.//; |
$key =~ s/^$part\.//; |
if (ref($value) eq 'ARRAY') { |
if (ref($value) eq 'ARRAY') { |
if ($key eq 'options') { |
if ($key eq 'options') { |
for(my $i=0;$i<scalar(@$value);$i++) { |
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$value->[$i]=~ s/(\s*$|^\s*)//g; |
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} |
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$Partdata{$part}->{'Options'}=$value; |
$Partdata{$part}->{'Options'}=$value; |
} elsif ($key eq 'concepts') { |
} elsif ($key eq 'concepts') { |
$Partdata{$part}->{'Concepts'}=$value; |
$Partdata{$part}->{'Concepts'}=$value; |
} elsif ($key =~ /^concept\.(.*)$/) { |
} elsif ($key =~ /^concept\.(.*)$/) { |
my $concept = $1; |
my $concept = $1; |
foreach my $foil (@$value) { |
foreach my $foil (@$value) { |
$foil =~ s/(\s*$|^\s*)//g; |
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$Partdata{$part}->{'Foils'}->{$foil}->{'Concept'}= |
$Partdata{$part}->{'Foils'}->{$foil}->{'Concept'}= |
$concept; |
$concept; |
} |
} |
} |
} |
} else { |
} else { |
$value =~ s/(\s*$|^\s*)//g; |
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if ($key=~ /^foil\.text\.(.*)$/) { |
if ($key=~ /^foil\.text\.(.*)$/) { |
my $foil = $1; |
my $foil = $1; |
$foil =~ s/(\s*$|^\s*)//g; |
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$Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil; |
$Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil; |
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$value =~ s/(\s*$|^\s*)//g; |
$Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value; |
$Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value; |
} elsif ($key =~ /^foil\.value\.(.*)$/) { |
} elsif ($key =~ /^foil\.value\.(.*)$/) { |
my $foil = $1; |
my $foil = $1; |
$foil =~ s/(\s*$|^\s*)//g; |
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$Partdata{$part}->{'Foils'}->{$foil}->{'value'}=$value; |
$Partdata{$part}->{'Foils'}->{$foil}->{'value'}=$value; |
} |
} |
} |
} |