version 1.3, 2002/07/26 21:50:12
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version 1.44, 2003/03/26 17:03:41
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# (Publication Handler |
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# |
# |
# $Id$ |
# $Id$ |
# |
# |
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# http://www.lon-capa.org/ |
# http://www.lon-capa.org/ |
# |
# |
# (Navigate problems for statistical reports |
# (Navigate problems for statistical reports |
# YEAR=2001 |
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# 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei |
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# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei |
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# YEAR=2002 |
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# 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei |
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# 5/12,5/14,5/15,5/19,5/26,7/16,7/25 Behrouz Minaei |
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# |
# |
### |
### |
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package Apache::lonproblemstatistics; |
package Apache::lonproblemstatistics; |
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use strict; |
use strict; |
use Apache::lonnet(); |
use Apache::lonnet(); |
use Apache::lonhtmlcommon; |
use Apache::lonhtmlcommon; |
use Apache::loncoursedata; |
use Apache::loncoursedata; |
use GDBM_File; |
use Apache::lonstatistics; |
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use Spreadsheet::WriteExcel; |
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#my %mapsort; |
####################################################### |
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####################################################### |
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sub BuildProblemStatisticsPage { |
sub CreateInterface { |
my ($cacheDB, $students, $courseID, $c, $r,%color)=@_; |
my $Str = ''; |
my %cache; |
$Str .= '<table cellspacing="5">'."\n"; |
#my %DoDiff; |
$Str .= '<tr>'; |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) { |
$Str .= '<td align="center"><b>Sections</b></td>'; |
return '<html><body>Unable to tie database.</body></html>'; |
$Str .= '<td align="center"><b>Sequences and Folders</b></td>'; |
} |
$Str .= '<td align="center"><b>Output</b></td>'; |
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$Str .= '</tr>'."\n"; |
my $Ptr = ''; |
# |
$Ptr .= '<table border="0"><tbody>'; |
$Str .= '<tr><td align="center">'."\n"; |
$Ptr .= '<tr><td align="right"><b>Select Map</b></td>'."\n"; |
$Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); |
$Ptr .= '<td align="left">'; |
$Str .= '</td><td align="center">'; |
$Ptr .= &Apache::lonhtmlcommon::MapOptions(\%cache, 'ProblemStatistics'); |
# |
$Ptr .= '</td></tr>'."\n"; |
my $only_seq_with_assessments = sub { |
$Ptr .= &AscendOrderOptions($cache{'Ascend'}); |
my $s=shift; |
$Ptr .= &ProblemStatisticsButtons($cache{'DisplayFormat'}); |
if ($s->{'num_assess'} < 1) { |
$Ptr .= '</table>'; |
return 0; |
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} else { |
$Ptr .= &ProblemStatisticsLegend(); |
return 1; |
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untie(%cache); |
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foreach (@$students) { |
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my $courseData = |
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&Apache::loncoursedata::DownloadCourseInformation($_, $courseID); |
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last if ($c->aborted()); |
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if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) { |
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&Apache::loncoursedata::ProcessStudentData(\%cache, |
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$courseData, $_); |
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untie(%cache); |
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} |
} |
} |
}; |
if($c->aborted()) { return $Ptr; } |
$Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, |
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$only_seq_with_assessments); |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) { |
$Str .= '</td><td>'."\n"; |
return '<html><body>Unable to tie database.</body></html>'; |
$Str .= &CreateAndParseOutputSelector(); |
} |
$Str .= '</td></tr>'."\n"; |
my $discriminantFactor; |
$Str .= '</table>'."\n"; |
my @list=(); |
return $Str; |
my %Discuss=&Apache::loncoursedata::LoadDiscussion($courseID); |
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my $index=0; |
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foreach (@$students) { |
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$index++; |
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#&Apache::lonstatistics::Update_PrgWin(++$index,$r); |
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$discriminantFactor = &ExtractStudentData(\%cache, $_, \@list, |
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\%Discuss, $r); |
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} |
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#&Apache::lonstatistics::Close_PrgWin($r); |
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my ($upper, $lower) = &Discriminant($discriminantFactor); |
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my %Header = (0,"Homework Sets Order",1,"#Stdnts",2,"Tries",3,"Mod", |
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4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"DoDiff", |
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9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd", 13, "Disc."); |
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my %GraphDat= &BuildStatisticsTable(\%cache, $discriminantFactor, \@list, |
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\%Header, $students, $r, \%color); |
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untie(%cache); |
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return $Ptr; |
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} |
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sub BuildDiffGraph { |
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my ($r)=@_; |
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my $graphData = &GetGraphData('DiffGraph', $r); |
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return '<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />'; |
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} |
} |
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sub BuildWrongGraph { |
####################################################### |
my ($r)=@_; |
####################################################### |
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my $graphData = &GetGraphData('WrongGraph', $r); |
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return '<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />'; |
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} |
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#---- Activity log ------------------------------------------------------- |
=pod |
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sub LoadDoDiffFile { |
=item &CreateAndParseOutputSelector() |
my $file="/home/minaeibi/183d.txt"; |
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open(FILEID, "<$file"); |
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my $line=<FILEID>; |
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my %DoDiff=(); |
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my @Act=split('&',$line); |
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# $r->print('<br>'.$#Act); |
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for(my $n=0;$n<=$#Act;$n++){ |
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my ($res,$Degree)=split('@',$Act[$n]); |
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$DoDiff{$res}=$Degree; |
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} |
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return \%DoDiff; |
=cut |
} |
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sub LoadClassFile { |
####################################################### |
my $file="/home/minaeibi/class.txt"; |
####################################################### |
open(FILEID, "<$file"); |
my $output_mode; |
my $line; |
my $show; |
my %Grade=(); |
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while ($line=<FILEID>) { |
my @OutputOptions = |
my ($id,$ex1,$ex2,$ex3,$ex4,$hw,$final,$grade)=split(' ',$line); |
( |
$Grade{$id}=$grade; |
{ name => 'problem statistics grouped by sequence', |
} |
value => 'HTML problem statistics grouped', |
return \%Grade; |
description => 'Output statistics for the problem parts.', |
} |
mode => 'html', |
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show => 'grouped', |
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}, |
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{ name => 'problem statistics 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', |
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show => 'ungrouped', |
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}, |
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{ name => 'problem statistics, Excel', |
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value => 'Excel problem statistics', |
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description => 'Output statistics for the problem parts '. |
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'in an Excel workbook', |
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mode => 'excel', |
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show => 'all', |
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}, |
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{ name => 'Degree of Difficulty Plot', |
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value => 'plot deg diff', |
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description => 'Generate a plot of the degree of difficulty of each '. |
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'problem part.', |
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mode => 'plot', |
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show => 'deg of diff', |
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}, |
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{ name => 'Percent Wrong Plot', |
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value => 'plot per wrong', |
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description => 'Generate a plot showing the percent of students who '. |
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'were unable to complete each problem part', |
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mode => 'plot', |
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show => 'per wrong', |
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}, |
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); |
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#------- Classification |
sub OutputDescriptions { |
sub Classify { |
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my ($DiscFac, $students)=@_; |
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my ($fileGrade) = &LoadClassFile(); |
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my $Count=0; |
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my @List=(); |
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my @LS=(); |
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my @LF=(); |
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my @LM=(); |
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my $cf=0; |
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my $cs=0; |
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my $cm=0; |
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foreach (keys(%$DiscFac)){ |
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my @l=split(/\:/,$_); |
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if (!($students->{$l[1]})) {next;} |
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my $Grade=$fileGrade->{$students->{$l[1]}}; |
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if( $Grade > 3 ) { |
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$cs++; |
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push(@LS,("$l[6],$l[5],$l[4],$l[7],$l[8],$l[9],Successful")); |
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} elsif ( $Grade > 2 ) { |
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$cm++; |
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push(@LM,("$l[6],$l[5],$l[4],$l[7],$l[8],$l[9],Average")); |
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} else { |
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$cf++; |
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push(@LF,("$l[6],$l[5],$l[4],$l[7],$l[8],$l[9],Failed")); |
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} |
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} |
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my $Str = ''; |
my $Str = ''; |
for(my $n=0;$n<$cs;$n++){$Str .= '<br>'.$LS[$n];} |
$Str .= "<h2>Output Modes</h2>\n"; |
for(my $n=0;$n<$cm;$n++){$Str .= '<br>'.$LM[$n];} |
$Str .= "<dl>\n"; |
for(my $n=0;$n<$cf;$n++){$Str .= '<br>'.$LF[$n];} |
foreach my $outputmode (@OutputOptions) { |
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$Str .=" <dt>".$outputmode->{'name'}."</dt>\n"; |
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$Str .=" <dd>".$outputmode->{'description'}."</dd>\n"; |
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} |
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$Str .= "</dl>\n"; |
return $Str; |
return $Str; |
} |
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sub ProcAct { |
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# return; |
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my ($Act,$Submit)=@_; |
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my @Act=split(/\@/,$Act); |
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@Act = sort(@Act); |
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##$r->print('<br>'.$#Act); |
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##for(my $n=0;$n<=$#Act;$n++){ |
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## $r->print('<br>n='.$n.')'.$Act[$n]); |
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## } |
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# my $Beg=$Act[0]; |
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my $Dif=$Submit-$Act[0]; |
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$Dif = ($Dif>0) ? ($Dif/3600) : 0; |
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# $r->print('<br>Access Number = '.$#Act.'<br>Submit Time='.$Submit.'<br>First Access='.$Act[0].'<br>Last Access='.$Act[$#Act].'<br> Submit - First = <b>'.$Dif.'</b>'); |
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#time spent for solving the problem |
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# $r->print('<br>Def'.($Act[$#Act-1]-$Act[0])); |
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return $Dif; |
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} |
} |
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sub LoadActivityLog { |
sub CreateAndParseOutputSelector { |
# my $CacheDB = "/home/minaeibi/act183.log.cache"; |
my $Str = ''; |
my $CacheDB = "/home/httpd/perl/tmp/act183.log.cache"; |
my $elementname = 'outputmode'; |
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# |
my %Activity; |
# Format for output options is 'mode, restrictions'; |
if (-e "$CacheDB") { |
my $selected = 'html, with links'; |
if (tie(%Activity,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) { |
if (exists($ENV{'form.'.$elementname})) { |
return; |
if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) { |
} |
$selected = $ENV{'form.'.$elementname}->[0]; |
else { |
} else { |
# $r->print("Unable to tie log Cache hash to db file"); |
$selected = $ENV{'form.'.$elementname}; |
} |
} |
} |
} |
else { |
# |
if (tie(%Activity,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) { |
# Set package variables describing output mode |
foreach (keys %Activity) {delete $Activity{$_};} |
$output_mode = 'html'; |
&Build_log(\%Activity); |
$show = 'all'; |
} |
foreach my $option (@OutputOptions) { |
else { |
next if ($option->{'value'} ne $selected); |
# $r->print("Unable to tie log Build hash to db file"); |
$output_mode = $option->{'mode'}; |
} |
$show = $option->{'show'}; |
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} |
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# |
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# Build the form element |
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$Str = qq/<select size="5" name="$elementname">/; |
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foreach my $option (@OutputOptions) { |
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$Str .= "\n".' <option value="'.$option->{'value'}.'"'; |
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$Str .= " selected " if ($option->{'value'} eq $selected); |
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$Str .= ">".$option->{'name'}."<\/option>"; |
} |
} |
return \%Activity; |
$Str .= "\n</select>"; |
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return $Str; |
} |
} |
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sub Build_log { |
############################################### |
my ($Activity)=@_; |
############################################### |
my $file="/home/minaeibi/act183.log"; |
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open(FILEID, "<$file"); |
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my $line; |
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my $count=0; |
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while ($line=<FILEID>) { |
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my ($time,$machine,$what)=split(':',$line); |
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$what=&Apache::lonnet::unescape($what); |
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my @accesses=split('&',$what); |
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foreach my $access (@accesses) { |
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$count++; |
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my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); |
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if (!$resource) { next; } |
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my $res=&Apache::lonnet::unescape($resource); |
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if (($res =~ /\.problem/)) { |
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$Activity->{$who.':'.$res}.=$date.'@'; |
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#$r->print('<br>'.$time.':'.$who.'---'.$res); |
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&Update_PrgInit($count); |
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} |
############################################### |
} |
############################################### |
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sub Gather_Student_Data { |
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my ($r) = @_; |
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my $c = $r->connection(); |
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# |
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my @Sequences = &Apache::lonstatistics::Sequences_with_Assess(); |
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# |
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my @Students = @Apache::lonstatistics::Students; |
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# |
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# Open the progress window |
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my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin |
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($r,'Statistics Compilation Status', |
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'Statistics Compilation Progress', scalar(@Students)); |
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# |
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while (my $student = shift @Students) { |
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return if ($c->aborted()); |
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my ($status,undef) = &Apache::loncoursedata::ensure_current_data |
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($student->{'username'},$student->{'domain'}, |
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$ENV{'request.course.id'}); |
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&Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, |
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'last student'); |
} |
} |
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&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); |
# my $c=1; |
$r->rflush(); |
# foreach (sort keys %Activity) { |
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# $r->print('<br>'.$c.')'.$_.' ... '.$Activity{$_}); |
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# $c++; |
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# } |
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} |
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sub Activity { |
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my $file="/home/minaeibi/activity.log"; |
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my $userid='adamsde1'; |
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# $r->print("<br>Using $file"); |
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# $r->rflush(); |
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open(FILEID, "<$file"); |
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my $line; |
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my @allaccess; |
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my $Count=0; |
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while ($line=<FILEID>) { |
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my ($time,$machine,$what)=split(':',$line); |
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$what=&Apache::lonnet::unescape($what); |
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my @accesses=split('&',$what); |
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foreach my $access (@accesses) { |
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my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); |
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#if ($who ne $userid) { next; } |
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if (!$resource) { next; } |
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my $res=&Apache::lonnet::unescape($resource); |
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if (($res =~ /\.(sequence|problem|htm|html|page)/)) { |
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$Count++; |
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###888 $r->print("<br>$Count) ".localtime($date).": $who --> $res"); |
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# if ($post) { |
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# $Count++; |
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# $r->print("<br><b>$Count) Sent data ".join(':', |
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# &Apache::lonnet::unescape(@posts)).'</b>'); |
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# } |
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###888 $r->rflush(); |
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} |
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#push (@allaccess,unescape($access)); |
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#print $machine; |
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} |
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} |
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# @allaccess=sort(@allaccess); |
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# $Count=0; |
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# foreach my $access (@allaccess) { |
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# my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); |
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# $Count++; |
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# $r->print("<br>$Count) $date: $who --> $resource"); |
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# $r->rflush(); |
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# if ($post) { |
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# $r->print("<br><b>Sent data ".join(':',unescape(@posts)).'</b>'); |
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# } |
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# } |
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} |
} |
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#---- END Activity log --------------------------------------------------- |
############################################### |
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############################################### |
#---- Problem Statistics Web Page --------------------------------------- |
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#------- Processing upperlist and lowerlist according to each problem |
############################################### |
sub ProcessDiscriminant { |
############################################### |
my ($List) = @_; |
sub BuildProblemStatisticsPage { |
my @sortedList = sort (@$List); |
my ($r,$c)=@_; |
my $Count = scalar @sortedList; |
# |
my $Problem; |
$output_mode = 'html'; |
my @Dis; |
$show = 'grouped'; |
my $Slvd=0; |
# |
my $tmp; |
$r->print(&CreateInterface()); |
my $Sum1=0; |
$r->print('<input type="hidden" name="statsfirstcall" value="no" />'); |
my $Sum2=0; |
$r->print('<input type="hidden" name="sortby" value="'.$ENV{'form.sortby'}. |
my $nIndex=0; |
'" />'); |
my $nStudent=0; |
if (! exists($ENV{'form.statsfirstcall'})) { |
my %Proc=undef; |
return; |
while ($nIndex<$Count) { |
} |
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
# |
@Dis=split(/\+/,$tmp); |
&Gather_Student_Data($r); |
my $Temp = $Problem; |
# |
do { |
# |
$nIndex++; |
if ($output_mode eq 'html') { |
$nStudent++; |
$r->print("<h2>". |
$Sum1 += $Dis[0]; |
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}. |
$Sum2 += $Dis[1]; |
"</h2>\n"); |
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
$r->print("<h3>".localtime(time)."</h3>"); |
@Dis=split(/\+/,$tmp); |
$r->rflush(); |
} while ( $Problem eq $Temp && $nIndex < $Count ); |
if ($show eq 'grouped') { |
# $Proc{$Temp}=($Sum1/$nStudent).':'.$nStudent; |
&output_html_grouped_by_sequence($r); |
$Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent); |
} elsif ($show eq 'ungrouped') { |
# $r->print("$nIndex) $Temp --> ($nStudent) $Proc{$Temp} <br>"); |
&output_html_ungrouped($r); |
$Sum1=0; |
} |
$Sum2=0; |
} elsif ($output_mode eq 'excel') { |
$nStudent=0; |
$r->print("<h2>Preparing Excel Spreadsheet</h2>"); |
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&output_excel($r); |
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} else { |
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$r->print("<h1>Not implemented</h1>"); |
} |
} |
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return; |
return %Proc; |
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} |
} |
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#------- Creating Discimination factor |
############################################### |
sub Discriminant { |
############################################### |
my ($discriminantFactor)=@_; |
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my @discriminantKeys=keys(%$discriminantFactor); |
############################################### |
my $Count = scalar @discriminantKeys; |
############################################### |
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sub output_html_grouped_by_sequence { |
my $UpCnt = int(0.27*$Count); |
my ($r) = @_; |
my $low=0; |
#$r->print(&ProblemStatisticsLegend()); |
my $up=$Count-$UpCnt; |
my @Header = ("Title","Part","#Stdnts","Tries","Mod", |
my @UpList=(); |
"Mean","#YES","#yes","%Wrng","DoDiff", |
my @LowList=(); |
"S.D.","Skew.");#,"D.F.1st","D.F.2nd"); |
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# #FFFFE6 #EEFFCC #DDFFFF FFDDDD #DDFFDD #FFDDFF |
$Count=0; |
foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()) { |
foreach my $key (sort(@discriminantKeys)) { |
my $show_part = 0; |
$Count++; |
next if ($sequence->{'num_assess'}<1); |
if($low < $UpCnt || $Count > $up) { |
$r->print("<h3>".$sequence->{'title'}."</h3>"); |
$low++; |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
my $str=$discriminantFactor->{$key}; |
$r->print('<table border="0" cellpadding="3">'."\n"); |
foreach(split(/\:/,$str)){ |
$r->print('<tr bgcolor="#FFFFE6"><th>'. |
if($_) { |
join("</th><th>",@Header)."</th></tr>\n"); |
if($low<$UpCnt) { push(@LowList,$_); } |
foreach my $resource (@{$sequence->{'contents'}}) { |
else { push(@UpList,$_); } |
next if ($resource->{'type'} ne 'assessment'); |
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foreach my $part (@{$resource->{'parts'}}) { |
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my ($num,$tries,$mod,$mean,$Solved,$solved,$DegOfDiff,$STD, |
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$SKEW) = &Apache::loncoursedata::get_problem_statistics |
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(undef,$resource->{'symb'},$part, |
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$ENV{'request.course.id'}); |
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# |
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$show_part = 1 if ($part ne '0'); |
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$part = ' ' if ($part == 0); |
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# |
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my $wrongpercent = 0; |
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if (defined($num) && $num > 0) { |
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$wrongpercent=int(10*100*($num-$Solved+$solved)/$num)/10; |
} |
} |
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$r->print('<tr>'.&statistics_html_table_data |
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($resource,$part,$num,$tries,$mod,$mean,$Solved, |
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$solved,$wrongpercent,$DegOfDiff,$STD,$SKEW, |
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$show_part). |
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"</tr>\n"); |
} |
} |
} |
} |
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$r->print("</table>\n"); |
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$r->print("</td></tr></table>\n"); |
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$r->rflush(); |
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} |
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# |
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return; |
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} |
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############################################### |
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############################################### |
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############################################### |
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############################################### |
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sub output_html_ungrouped { |
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my ($r) = @_; |
|
# |
|
my $show_container = 0; |
|
my $show_part = 0; |
|
#$r->print(&ProblemStatisticsLegend()); |
|
my @Header = ("Title","Part","#Stdnts","Tries","Mod", |
|
"Mean","#YES","#yes","%Wrng","DoDiff", |
|
"S.D.","Skew");#,"D.F.1st","D.F.2nd"); |
|
# |
|
my $sortby = undef; |
|
foreach (@Header) { |
|
if ($ENV{'form.sortby'} eq $_) { |
|
$sortby = $_; |
|
} |
} |
} |
my %DisUp = &ProcessDiscriminant(\@UpList); |
if (! defined($sortby) || $sortby eq '') { |
my %DisLow = &ProcessDiscriminant(\@LowList); |
$sortby = 'Container'; |
|
|
return (\%DisUp, \%DisLow); |
|
} |
|
|
|
|
|
sub NumericSort { |
|
$a <=> $b; |
|
} |
|
|
|
|
|
sub CreateProblemStatisticsTableHeading { |
|
my ($displayFormat,$sequenceSource,$sequenceTitle,$headings,$r)=@_; |
|
if($displayFormat eq 'Display CSV Format') { |
|
$r->print('<br>"'.$sequenceTitle.'","'); |
|
$r->print($sequenceSource.'"'); |
|
return; |
|
} |
|
|
|
$r->print('<br><a href="'.$sequenceSource. |
|
'" target="_blank">'.$sequenceTitle.'</a>'); |
|
|
|
my $Result = "\n".'<table border=2><tr><th>P#</th>'."\n"; |
|
for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) { |
|
$Result .= '<th>'.'<input type="submit" name="'; |
|
$Result .= 'ProblemStatisticsHeading" value="'; |
|
$Result .= $headings->{$nIndex}.'" />'.'</th>'."\n"; |
|
} |
} |
$Result .= "\n".'</tr>'."\n"; |
# #FFFFE6 #EEFFCC #DDFFFF FFDDDD #DDFFDD #FFDDFF |
$r->print($Result); |
my @Sequences = &Apache::lonstatistics::Sequences_with_Assess(); |
$r->rflush(); |
if (@Sequences > 1) { |
} |
unshift(@Header,"Container"); |
|
$show_container = 1; |
sub CloseTable { |
} |
my ($cache,$r)=@_; |
# |
if($cache->{'DisplayFormat'} eq 'Display CSV Format') { |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
return; |
|
} |
|
$r->print("\n".'</table>'."\n"); |
|
$r->rflush(); |
$r->rflush(); |
} |
# |
|
# Compile the data |
|
my @Statsarray; |
|
foreach my $sequence (@Sequences) { |
# ------ Dump the Student's DB file and handling the data for statistics table |
next if ($sequence->{'num_assess'}<1); |
sub ExtractStudentData { |
foreach my $resource (@{$sequence->{'contents'}}) { |
my ($cache,$name,$list,$Discuss,$r)=@_; |
next if ($resource->{'type'} ne 'assessment'); |
my %discriminantFactor; |
foreach my $part (@{$resource->{'parts'}}) { |
|
my ($num,$tries,$mod,$mean,$Solved,$solved,$DegOfDiff,$STD, |
my $totalTries = 0; |
$SKEW) = &Apache::loncoursedata::get_problem_statistics |
my $totalAwarded = 0; |
(undef,$resource->{'symb'},$part, |
my $tempProblemOrder=0; |
$ENV{'request.course.id'}); |
my $spent=0; |
# |
my $spent_yes=0; |
$show_part = 1 if ($part ne '0'); |
my $TotDiscuss=0; |
$part = ' ' if ($part == 0); |
my $TotalOpend = 0; |
# |
my $ProbSolved = 0; |
my $wrongpercent = 0; |
my $ProbTot = 0; |
if (defined($num) && $num > 0) { |
my $TotFirst = 0; |
$wrongpercent=int(10*100*($num-$Solved+$solved)/$num)/10; |
my $TimeTot = 0; |
} |
my $Discussed=0; |
push (@Statsarray, |
|
{ 'sequence' => $sequence, |
$Apache::lonxml::debug=1; |
'resource' => $resource, |
#&Apache::lonhomework::showhash(%$cache); |
'Title' => $resource->{'title'}, |
$Apache::lonxml::debug=0; |
'Part' => $part, |
|
'#Stdnts' => $num, |
foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
'Tries' => $tries, |
# if($cache->{'ProblemStatisticsMap'} ne 'All Maps' && |
'Mod' => $mod, |
# $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) { |
'Mean' => $mean, |
$r->print("<br>$name --- $sequence"); |
'#YES' => $Solved, |
$r->print("<br>".$cache->{$sequence.':title'}); |
'#yes' => $solved, |
# next; |
'%Wrng' => $wrongpercent, |
# } |
'DoDiff' => $DegOfDiff, |
|
'S.D.' => $STD, |
my $Dis = ''; |
'Skew' => $SKEW, |
foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { |
}); |
my $problem = $cache->{$problemID.':problem'}; |
|
$r->print("<br>$problemID === $problem"); |
|
my $LatestVersion = $cache->{$name.':version:'.$problem}; |
|
# Output dashes for all the parts of this problem if there |
|
# is no version information about the current problem. |
|
#if(!$LatestVersion) { |
|
# foreach my $part (split(/\:/,$cache->{$sequence.':'. |
|
# $problemID. |
|
# ':parts'})) { |
|
# $codes .= "-,"; |
|
# $attempts .= "0,"; |
|
# } |
|
# next; |
|
#} |
|
|
|
my %partData=undef; |
|
# Initialize part data, display skips correctly |
|
# Skip refers to when a student made no submissions on that |
|
# part/problem. |
|
foreach my $part (split(/\:/,$cache->{$sequence.':'. |
|
$problemID. |
|
':parts'})) { |
|
$partData{$part.':tries'}=0; |
|
$partData{$part.':code'}='-'; |
|
} |
} |
|
} |
# Looping through all the versions of each part, starting with the |
} |
# oldest version. Basically, it gets the most recent |
# |
# set of grade data for each part. |
# Table Headers |
for(my $Version=1; $Version<=$LatestVersion; $Version++) { |
$r->print('<table border="0" cellpadding="3">'."\n"); |
foreach my $part (split(/\:/,$cache->{$sequence.':'. |
my $Str = ''; |
$problemID. |
foreach (@Header) { |
':parts'})) { |
next if ($_ eq 'Part' && !$show_part); |
|
# Do not allow sorting on some fields |
if(!defined($cache->{$name.":$Version:$problem". |
if ($_ eq $sortby || /^(Part)$/) { |
":resource.$part.solved"})) { |
$Str .= '<th>'.$_.'</th>'; |
# No grade for this submission, so skip |
} else { |
next; |
$Str .= '<th>'. |
} |
'<a href="javascript:document.Statistics.sortby.value='."'$_'". |
|
';document.Statistics.submit();">'. |
my $tries=0; |
$_.'</a></th>'; |
my $time=0; |
} |
my $awarded=0; |
} |
$Discussed=0; |
$r->print('<tr bgcolor="#FFFFE6">'.$Str."</tr>\n"); |
my $code='U'; |
# |
|
# Sort the data |
$awarded = $cache->{$name. |
my @OutputOrder; |
"$Version:$problem:resource.". |
if ($sortby eq 'Container') { |
"$part.awarded"}; |
@OutputOrder = @Statsarray; |
$partData{$part.':awarded'} = ($awarded) ? $awarded : 0; |
} else { |
$totalAwarded += $awarded; |
# $sortby is already defined, so we can charge ahead |
|
if ($sortby =~ /^(title|part)$/i) { |
$tries = $cache->{$name.":$Version:$problem". |
# Alpha comparison |
":resource.$part.tries"}; |
@OutputOrder = sort { |
$partData{$part.':tries'} = ($tries) ? $tries : 0; |
lc($a->{$sortby}) cmp lc($b->{$sortby}) || |
$partData{$part.':wrong'} = $partData{$part.':tries'}; |
lc($a->{'Title'}) cmp lc($b->{'Title'}) || |
$totalTries += $tries; |
lc($a->{'Part'}) cmp lc($b->{'Part'}); |
|
} @Statsarray; |
my $val = $cache->{$name.":$Version:$problem". |
} else { |
":resource.$part.solved"}; |
# Numerical comparison |
if ($val eq 'correct_by_student') {$code = 'C';} |
@OutputOrder = sort { |
elsif ($val eq 'correct_by_override') {$code = 'O';} |
my $retvalue = 0; |
elsif ($val eq 'incorrect_attempted') {$code = 'I';} |
if ($b->{$sortby} eq 'nan') { |
elsif ($val eq 'incorrect_by_override'){$code = 'I';} |
if ($a->{$sortby} ne 'nan') { |
elsif ($val eq 'excused') {$code = 'x';} |
$retvalue = -1; |
$partData{$part.':code'}=$code; |
} else { |
if($partData{$part.':wrong'} ne 0 && |
$retvalue = 0; |
($code eq 'C' || $code eq 'O')) { |
|
$partData{$part.':wrong'}--; |
|
} |
} |
} |
} |
} |
if ($a->{$sortby} eq 'nan') { |
|
if ($b->{$sortby} ne 'nan') { |
# Loop through all the parts for the current problem in the |
$retvalue = 1; |
# correct order and prepare the output |
} |
foreach (split(/\:/,$cache->{$sequence.':'.$problemID. |
|
':parts'})) { |
|
my $Yes = 0; |
|
if($partData{$_.':code'} eq 'C' || |
|
$partData{$_.':code'} eq 'O') { |
|
$Yes=1; |
|
} |
} |
my $ptr = $tempProblemOrder.'&'.$problemID; |
if ($retvalue eq '0') { |
|
$retvalue = $b->{$sortby} <=> $a->{$sortby} || |
if($_ > 1) { |
lc($a->{'Title'}) <=> lc($b->{'Title'}) || |
$ptr .= "*(part $_)"; |
lc($a->{'Part'}) <=> lc($b->{'Part'}); |
$Dis .= '&'; |
|
} |
} |
|
$retvalue; |
|
} @Statsarray; |
|
} |
|
} |
|
foreach my $row (@OutputOrder) { |
|
$r->print('<tr>'); |
|
if ($show_container) { |
|
$r->print('<td bgcolor="#FFFFE6">' |
|
.$row->{'sequence'}->{'title'}.'</td>'); |
|
} |
|
$r->print(&stats_row_from_hash($row,$show_part)); |
|
$r->print("</tr>\n"); |
|
} |
|
$r->print("</table>\n"); |
|
$r->print("</td></tr></table>\n"); |
|
$r->rflush(); |
|
# |
|
return; |
|
} |
|
|
my ($pr_no,$dod)=split('&',$ptr); |
sub stats_row_from_hash { |
# my $DoDiff=$DoDiff->{$dod}; |
my ($data,$show_part) = @_; |
# $r->print('<br>'.$name.'---'.$ptr.'==='.$DoDiff); |
return &statistics_html_table_data($data->{'resource'},$data->{'Part'}, |
|
$data->{'#Stdnts'}, $data->{'Tries'}, |
my $Fac = ($partData{$_.':Tries'}) ? |
$data->{'Mod'}, $data->{'Mean'}, |
($partData{$_.':awarded'}/$partData{$_.':tries'}) : 0; |
$data->{'#YES'}, $data->{'#yes'}, |
my $DisF; |
$data->{"\%Wrng"}, $data->{'DoDiff'}, |
if($Fac > 0 && $Fac < 1) { |
$data->{'S.D.'}, $data->{'Skew'}, |
$DisF = sprintf( "%.4f", $Fac ); |
$show_part); |
} else { |
} |
$DisF = $Fac; |
|
|
############################################### |
|
############################################### |
|
|
|
############################################### |
|
############################################### |
|
sub output_excel { |
|
my ($r) = @_; |
|
my $filename = '/prtspool/'. |
|
$ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. |
|
time.'_'.rand(1000000000).'.xls'; |
|
# |
|
my $excel_workbook = undef; |
|
my $excel_sheet = undef; |
|
# |
|
my $rows_output = 0; |
|
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("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 |
|
my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; |
|
if (length($sheetname) > 31) { |
|
$sheetname = substr($sheetname,0,31); |
|
} |
|
$excel_sheet = $excel_workbook->addworksheet($sheetname); |
|
# |
|
# Put the course description in the header |
|
$excel_sheet->write($rows_output,$cols_output++, |
|
$ENV{'course.'.$ENV{'request.course.id'}.'.description'}); |
|
$cols_output += 3; |
|
# |
|
# Put a description of the sections listed |
|
my $sectionstring = ''; |
|
my @Sections = @Apache::lonstatistics::SelectedSections; |
|
if (scalar(@Sections) > 1) { |
|
if (scalar(@Sections) > 2) { |
|
my $last = pop(@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); |
|
# |
|
# Put the date in there too |
|
$excel_sheet->write($rows_output,$cols_output++, |
|
'Compiled on '.localtime(time)); |
|
# |
|
$rows_output++; |
|
$cols_output=0; |
|
# |
|
# Add the headers |
|
my @Header = ("Container","Title","Part","#Stdnts","Tries","Mod", |
|
"Mean","#YES","#yes","%Wrng","DoDiff", |
|
"S.D.","Skew.");#,"D.F.1st","D.F.2nd"); |
|
foreach (@Header) { |
|
$excel_sheet->write($rows_output,$cols_output++,$_); |
|
} |
|
$rows_output++; |
|
# |
|
# Write the data |
|
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'}}) { |
|
$cols_output=0; |
|
my ($num,$tries,$mod,$mean,$Solved,$solved,$DegOfDiff,$STD, |
|
$SKEW) = &Apache::loncoursedata::get_problem_statistics |
|
(undef,$resource->{'symb'},$part, |
|
$ENV{'request.course.id'}); |
|
# |
|
if (!defined($part) || $part eq '') { |
|
$part = ' '; |
} |
} |
|
my $wrongpercent = 0; |
if ($Discuss->{"$name:$problem"}) { |
if (defined($num) && $num > 0) { |
$TotDiscuss++; |
$wrongpercent=int(10*100*($num-$Solved+$solved)/$num)/10; |
$Discussed=1; |
|
} |
} |
my $time = $cache->{"$name:$LatestVersion:$problem:timestamp"}; |
foreach ($sequence->{'title'},$resource->{'title'},$part, |
$Dis .= $tempProblemOrder.'='.$DisF.'+'.$Yes; |
$num,$tries,$mod,$mean,$Solved,$solved,$wrongpercent, |
$ptr .= '&'.$partData{$_.'.tries'}. |
$DegOfDiff,$STD,$SKEW) { |
'&'.$partData{$_.'.wrongs'}. |
$excel_sheet->write($rows_output,$cols_output++,$_); |
'&'.$partData{$_.'.code'}; |
|
push (@$list, $ptr."&$Discussed"); |
|
$r->print('<br>'.$name.'---'.$ptr); |
|
|
|
#### if ($DoDiff>0.85) { |
|
|
|
$TimeTot += $time; |
|
|
|
if ($Yes==1 && $partData{$_.'.Tries'}==1) { |
|
$TotFirst++; |
|
} |
} |
# my $Acts= $Activity->{$name.':'.$problem}; |
$rows_output++; |
# if ($Acts) { |
|
# my $Pt=&ProcAct( $Acts, $time ); |
|
#my ($spe,$beg) = split(/\+/,$Pt); |
|
# my $spe= $Pt; |
|
# if ($Yes==1) {$spent_yes += $spe;} |
|
# $spent += $spe; |
|
#$Beg += $beg; |
|
# $r->print('<br>'.$name.'---'.$problem.'---'.$spe); |
|
# } |
|
$TotalOpend++; |
|
$ProbTot++; |
|
|
|
$tempProblemOrder++; |
|
} |
} |
} |
} |
my $pstr; |
|
if($totalTries) { |
|
my $DisFac = ($totalAwarded/$totalTries); |
|
my $DisFactor = sprintf( "%.4f", $DisFac ); |
|
my $TS = sprintf( "%.2f", $spent ); |
|
my $TS_yes = sprintf( "%.2f", $spent_yes ); |
|
# $DiscFac{$DisFactor}=$Dis; |
|
$pstr=$DisFactor.':'.$name.':'.$ProbTot.':'.$TotalOpend.':'. |
|
$totalTries.':'.$ProbSolved.':'.$TotFirst.':'. |
|
$TS_yes.':'.$TS.':'.$TotDiscuss; |
|
$discriminantFactor{$pstr}=$Dis; |
|
} |
|
} |
|
|
|
return (\%discriminantFactor); |
|
} |
|
|
|
|
|
=pod |
|
sub MySort { |
|
if ( $Pos > 0 ) { |
|
if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;} |
|
else { $a <=> $b; } |
|
} |
|
else { |
|
if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;} |
|
else { $a cmp $b; } |
|
} |
} |
|
# |
|
# Write the excel file |
|
$excel_workbook->close(); |
|
# Tell the user where to get their excel file |
|
$r->print('<br />'. |
|
'<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n"); |
|
$r->rflush(); |
|
return; |
} |
} |
=cut |
|
|
|
|
|
sub BuildStatisticsTable { |
|
my ($cache,$discriminantFactor,$list,$headings,$students,$r,%color)=@_; |
|
|
|
#6666666 |
sub statistics_html_table_data { |
# my $file="/home/httpd/perl/tmp/183d.txt"; |
my ($resource,$part,$num,$tries,$mod,$mean,$Solved,$solved,$wrongpercent, |
# open(OUT, ">$file"); |
$DegOfDiff,$STD,$SKEW,$show_part) = @_; |
#6666666 |
my $row = ''; |
## &Apache::lonstatistics::Create_PrgWin($r); |
$row .= '<td bgcolor="#FFFFE6">'. |
##777777 |
'<a href="'.$resource->{'src'}.'" target="_blank" >'. |
## my (%Activity) = &LoadActivityLog(); |
$resource->{'title'}.'</a>'. |
## $r->print('<script>popwin.document.popremain.remaining.value="'. |
'</td>'; |
## 'Loading Discussion...";</script>'); |
$row .= '<td bgcolor="#FFFFE6">'.$part.'</td>' if ($show_part); |
## my ($doDiffFile) = &LoadDoDiffFile(); |
foreach ($num,$tries) { |
|
$row .= '<td bgcolor="#EEFFCC" align="right">'.$_.'</td>'; |
my $p_count = 0; |
} |
my $nIndex = 0; |
foreach ($mod,$mean) { |
my $dummy; |
$row .= '<td bgcolor="#DDFFFF" align="right">'. |
my $p_val; |
sprintf("%5.2f",$_).'</td>'; |
my $ResId; |
} |
my %GraphDat; |
foreach ($Solved,$solved) { |
my $NoElements = scalar @$list; |
$row .= '<td bgcolor="#DDFFFF" align="right">'.$_.'</td>'; |
|
} |
|
foreach ($wrongpercent) { |
foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
$row .= '<td bgcolor="#DDFFFF" align="right">'. |
|
sprintf("%5.1f",$_).'</td>'; |
&CreateProblemStatisticsTableHeading($cache->{'DisplayFormat'}, |
} |
$cache->{$sequence.':source'}, |
foreach ($DegOfDiff,$STD,$SKEW) { |
$cache->{$sequence.':title'}, |
$row .= '<td bgcolor="#FFDDDD" align="right">'. |
$headings,$r); |
sprintf("%5.2f",$_).'</td>'; |
|
} |
foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { |
return $row; |
my $problem = $cache->{$problemID.':problem'}; |
|
$r->print("<br>$problem"); |
|
|
|
} |
|
} |
|
} |
} |
=pod |
|
##777777 |
|
## $Str .= &Classify($discriminantFactor, $students); |
|
|
|
|
|
my ($Hid,$pr)=split(/\:/,$mapsort{$_}); |
|
my @lpr=split(/\&/,$pr); |
|
for (my $i=1; $i<=$#lpr; $i++) { |
|
my %storestats=(); |
|
my ($PrOrd,$Prob,$Tries,$Wrongs,$Code,$Disc)=split(/\&/,$list->[$nIndex]); |
|
my $Temp = $Prob; |
|
my $MxTries = 0; |
|
my $TotalTries = 0; |
|
my $YES = 0; |
|
my $Incorrect = 0; |
|
my $Override = 0; |
|
my $StdNo = 0; |
|
my $DiscNo=0; |
|
my @StdLst; |
|
while ( $PrOrd == $lpr[$i] ) |
|
{ |
|
$nIndex++; |
|
$StdNo++; |
|
$StdLst[ $StdNo ] = $Tries; |
|
$TotalTries += $Tries; |
|
if ( $MxTries < $Tries ) { $MxTries = $Tries; } |
|
if ( $Code eq 'C' ){ $YES++; } |
|
elsif( $Code eq 'I' ) { $Incorrect++; } |
|
elsif( $Code eq 'O' ) { $Override++; } |
|
elsif( $Code eq 'U' ) { $StdNo--; } |
|
($PrOrd,$Prob,$Tries,$Wrongs,$Code,$Disc)=split(/\&/,$list->[$nIndex]); |
|
} |
|
|
|
$p_count++; |
|
my $Dummy; |
|
($ResId,$Dummy)=split(/\*/,$Temp); |
|
|
|
$Temp = '<a href="'.$cache->{'src_'.$ResId}. |
|
'" target="_blank">'.$cache->{'title_'.$ResId}.$Dummy.'</a>'; |
|
|
|
my $res = &Apache::lonnet::declutter($cache->{'src_'.$ResId}); |
|
my $urlres=$res; |
|
|
|
$ResId=~/(\d+)\.(\d+)/; |
|
my $Map = &Apache::lonnet::declutter( $cache->{'map_id_'.$1} ); |
|
$urlres=$Map; |
|
|
|
$res = '<a href="'.$cache->{'src_'.$ResId}.'">'.$res.'</a>'; |
|
#$Map = '<a href="'.$Map.'">'.$res.'</a>'; |
|
|
|
#------------------------ Compute the Average of Tries about one problem |
|
my $Average = ($StdNo) ? $TotalTries/$StdNo : 0; |
|
|
|
$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___timestamp'}=time; |
|
$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___stdno'}=$StdNo; |
|
$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___avetries'}=$Average; |
|
|
|
#-------------------------------- Compute percentage of Wrong tries |
|
my $Wrong = ( $StdNo ) ? 100 * ( $Incorrect / $StdNo ) : 0; |
|
|
|
#-------------------------------- Compute Standard Deviation |
|
my $StdDev = 0; |
|
if ( $StdNo > 1 ) { |
|
for ( my $n = 0; $n < $StdNo; $n++ ) { |
|
my $Dif = $StdLst[ $n ]-$Average; |
|
$StdDev += $Dif*$Dif; |
|
} |
|
$StdDev /= ( $StdNo - 1 ); |
|
$StdDev = sqrt( $StdDev ); |
|
} |
|
|
|
#-------------------------------- Compute Degree of Difficulty |
|
my $DoDiff = 0; |
|
if( $TotalTries > 0 ) { |
|
$DoDiff = 1 - ( ( $YES + $Override ) / $TotalTries ); |
|
# $DoDiff = ($TotalTries)/($YES + $Override+ 0.1); |
|
} |
|
|
|
$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___difficulty'}=$DoDiff; |
|
|
|
#-------------------------------- Compute the Skewness |
############################################### |
my $Skewness = 0; |
############################################### |
my $Sum = 0; |
|
if ( $StdNo > 0 && $StdDev > 0 ) { |
|
for ( my $n = 0; $n < $StdNo; $n++ ) { |
|
my $Dif = $StdLst[ $n ]-$Average; |
|
$Skewness += $Dif*$Dif*$Dif; |
|
} |
|
$Skewness /= $StdNo; |
|
$Skewness /= $StdDev*$StdDev*$StdDev; |
|
} |
|
|
|
#--------------------- Compute the Discrimination Factors |
sub BuildGraphicChart { |
my ($Up1,$Up2)=split(/\:/,':');#jason$DisUp->{$lpr[$i]}); |
my ($graph,$cacheDB,$courseDescription,$students,$courseID,$r,$c)=@_; |
my ($Lw1,$Lw2)=split(/\:/,':');#jason$DisLow->{$lpr[$i]}); |
my %cache; |
my $Dis1 = $Up1 - $Lw1; |
my $max; |
my $Dis2 = $Up2 - $Lw2; |
my $title = ''; |
my $_D1 = sprintf("%.2f", $Dis1); |
if($graph eq 'DoDiffGraph') { |
my $_D2 = sprintf("%.2f", $Dis2); |
$title = 'Degree-of-Difficulty'; |
|
} else { |
#----------------- Some restition in presenting the float numbers |
$title = 'Wrong-Percentage'; |
my $Avg = sprintf( "%.2f", $Average ); |
} |
my $Wrng = sprintf( "%.1f", $Wrong ); |
my $currentSequence = -1; |
my $SD = sprintf( "%.1f", $StdDev ); |
my $sortProblems = 'Sort Within Sequence'; |
my $DoD = sprintf( "%.2f", $DoDiff ); |
my ($result, $orderedProblems) = |
my $Sk = sprintf( "%.1f", $Skewness ); |
&InitializeProblemStatistics($cacheDB, $students, $courseID, $c, $r); |
my $join = $lpr[$i].'&'.$Temp.'&'.$StdNo.'&'. |
if($result ne 'OK') { |
$TotalTries.'&'.$MxTries.'&'.$Avg.'&'. |
return; |
$YES.'&'.$Override.'&'.$Wrng.'&'.$DoD.'&'. |
} |
$SD.'&'.$Sk.'&'.$_D1.'&'.$_D2.'&'. |
my @values = (); |
$DiscNo.'&'.$Prob; |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
##8888 $CachData{($p_count-1)}=$join; |
return 'Unable to tie database.7'; |
|
} |
#6666666 |
foreach(@$orderedProblems) { |
# $r->print('<br>'.$out.'&'.$DoD); |
my ($sequence,$problem,$part)=split(':', $_); |
# print (OUT $out.'@'.$DoD.'&'); |
if($cache{'StatisticsMaps'} ne 'All Maps' && |
#6666666 |
$cache{'StatisticsMaps'} ne $cache{$sequence.':title'}) { |
|
next; |
$urlres=~/^(\w+)\/(\w+)/; |
} |
if ($StdNo) { |
if( $currentSequence == -1 || |
&Apache::lonnet::put('resevaldata',\%storestats,$1,$2); |
($sortProblems eq 'Sort Within Sequence' && |
|
$currentSequence != $sequence)) { |
|
if($currentSequence != -1) { |
|
&DrawGraph(\@values,$courseDescription,$title,$max,$r); |
} |
} |
#-------------------------------- Row of statistical table |
if($sortProblems eq 'Sort Within Sequence') { |
&TableRow($cache,$join,$i,($p_count-1),$r,\%color,\%GraphDat); |
$r->print('<br><b>'.$cache{$sequence.':title'}.'</b>'."\n"); |
} |
} |
&CloseTable($cache,$r); |
$currentSequence = $sequence; |
|
@values = (); |
|
$max=0; |
|
} |
|
my $data = 0; |
|
if($graph eq 'DoDiffGraph') { |
|
$data = sprintf("%.2f", $cache{$_.':degreeOfDifficulty'}), |
|
} else { |
|
$data = sprintf("%.1f", $cache{$_.':percentWrong'}), |
|
} |
|
if($max < $data) { |
|
$max = $data; |
|
} |
|
push(@values, $data); |
} |
} |
&Close_PrgWin(); |
untie(%cache); |
#666666 |
&DrawGraph(\@values,$courseDescription,$title,$max,$r); |
# close( OUT ); |
return; |
#666666 |
|
} |
} |
=cut |
|
|
|
=pod |
sub DrawGraph { |
sub Cache_Statistics { |
my ($values,$courseDescription,$title,$Max,$r)=@_; |
my ($cache,$color)=@_; |
my $sendValues = join(',', @$values); |
my @list = (); |
my $sendCount = scalar(@$values); |
my $Useful; |
$r->print("<br>The Maximum Value is: $Max"); |
my $UnUseful; |
if ( $Max > 1 ) { |
# $r->print('<input type="hidden" name="show" value="excel" />'."\n"); |
if ($Max % 10) { |
my %myHeader = reverse( %Header ); |
if ( int($Max) < $Max ) { |
$Pos = $myHeader{$ENV{'form.sort'}}; |
$Max++; |
if ($Pos > 0) {$Pos++;} |
$Max = int($Max); |
my $p_count = 0; |
|
foreach my $key( keys %CachData) { |
|
my @Temp=split(/\&/,$CachData{$key}); |
|
if ( $Pos == 0 ) { |
|
($UnUseful,$Useful)=split(/\>/,$Temp[$Pos]); |
|
} |
|
else { |
|
$Useful = $Temp[$Pos]; |
|
} |
|
$list[$p_count]=$Useful.'@'.$CachData{$key}; |
|
$p_count++; |
|
} |
|
|
|
@list = sort MySort (@list); |
|
|
|
my $nIndex=0; |
|
|
|
if ( $Pos == 0 ) { |
|
foreach (sort keys %mapsort) { |
|
my ($Hid,$pr)=split(/\:/,$mapsort{$_}); |
|
&CreateProblemStatisticsTableHeading($cache,1,$Hid); |
|
my @lpr=split(/\&/,$pr); |
|
for (my $i=1; $i<=$#lpr; $i++) { |
|
my($Pre, $Post) = split(/\@/,$list[$nIndex]); |
|
#$r->print('<br>'.$Pre.'---'.$Post); |
|
&TableRow($cache,$Post,$i,$nIndex,\%color,\%GraphDat); |
|
$nIndex++; |
|
} |
} |
&CloseTable($cache); |
|
} |
} |
} |
#(10 - $Max % 10); |
else { |
} else { $Max = 1; } |
&CreateProblemStatisticsTableHeading($cache,0); |
my @GData = ('','Problem_number',$title,$Max,$sendCount,$sendValues); |
for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) { |
# $r->print('</form>'."\n"); |
my($Pre, $Post) = split(/\@/,$list[$nIndex]); |
$r->print('<br>'."\n"); |
&TableRow($cache,$Post,$nIndex,$nIndex,\%color,\%GraphDat); |
$r->print('<IMG src="/cgi-bin/graph.png?'. |
} |
(join('&', @GData)).'" border="1" />'); |
&CloseTable($cache); |
# $r->print('<form>'."\n"); |
} |
$r->print('<br>'."\n"); |
} |
} |
=cut |
|
|
|
sub TableRow { |
|
my ($cache,$Str,$Idx,$RealIdx,$r,$color,$GraphDat)=@_; |
|
my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, |
|
$Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$DiscNo,$Prob)=split(/\&/,$Str); |
|
if ($ENV{'form.showcsv'}) { |
|
my ($ResId,$Dummy)=split(/\*/,$Prob); |
|
my $Ptr = "\n".'<br>'. |
|
"\n".'"'.($RealIdx+1).'",'. |
|
"\n".'"'.$cache->{'title_'.$ResId}.$Dummy.'",'. |
|
"\n".'"'.$cache->{'src_'.$ResId}.'",'. |
|
"\n".'"'.$StdNo.'",'. |
|
"\n".'"'.$TotalTries.'",'. |
|
"\n".'"'.$MxTries.'",'. |
|
"\n".'"'.$Avg.'",'. |
|
"\n".'"'.$YES.'",'. |
|
"\n".'"'.$Override.'",'. |
|
"\n".'"'.$Wrng.'",'. |
|
"\n".'"'.$DoD.'",'. |
|
"\n".'"'.$SD.'",'. |
|
"\n".'"'.$Sk.'",'. |
|
"\n".'"'.$_D1.'",'. |
|
"\n".'"'.$_D2.'"'. |
|
"\n".'"'.$DiscNo.'"'; |
|
|
|
$r->print("\n".$Ptr); |
#---- Problem Statistics Web Page --------------------------------------- |
} |
sub CreateProblemStatisticsTableHeading { |
else{ |
my ($headings,$r)=@_; |
my $Ptr = "\n".'<tr>'. |
my $Str=''; |
"\n".'<td>'.($RealIdx+1).'</td>'. |
$Str .= '<tr>'."\n"; |
# "\n".'<td>'.$PrOrd.$Temp.'</td>'. |
$Str .= '<th bgcolor="#ffffe6">P#</th>'."\n"; |
"\n".'<td>'.$Temp.'</td>'. |
foreach(@$headings) { |
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'. |
$Str .= '<th bgcolor="#ffffe6">'; |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'. |
$Str .= '<a href="/adm/statistics?reportSelected='; |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'. |
$Str .= &Apache::lonnet::escape('Problem Statistics'); |
"\n".'<td bgcolor='.$color->{"gb"}.'>'.$Avg.'</td>'. |
$Str .= '&ProblemStatisticsSort='; |
"\n".'<td bgcolor='.$color->{"gb"}.'> '.$YES.'</td>'. |
$Str .= &Apache::lonnet::escape($_).'">'.$_.'</a> </th>'."\n"; |
"\n".'<td bgcolor='.$color->{"gb"}.'> '.$Override.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"red"}.'> '.$Wrng.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"red"}.'> '.$DoD.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"green"}.'> '.$SD.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"green"}.'> '.$Sk.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"purple"}.'> '.$_D1.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"purple"}.'> '.$_D2.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$DiscNo.'</td>'; |
|
$r->print("\n".$Ptr.'</tr>' ); |
|
} |
} |
$GraphDat->{$RealIdx}=$DoD.':'.$Wrng; |
$Str .= "\n".'</tr>'."\n"; |
|
return $Str; |
} |
} |
|
|
sub StatusOptions { |
sub BuildStatisticsTable { |
my ($cache)=@_; |
my ($cache,$displayFormat,$sortProblems,$orderedProblems,$headings, |
|
$r,$color)=@_; |
my $Status = $cache->{'Status'}; |
my $count = 1; |
my $OpSel1 = ''; |
my $currentSequence = -1; |
my $OpSel2 = ''; |
foreach(@$orderedProblems) { |
my $OpSel3 = ''; |
my ($sequence,$problem,$part)=split(':', $_); |
|
if($cache->{'StatisticsMaps'} ne 'All Maps' && |
if($Status eq 'Any') { $OpSel3 = ' selected'; } |
$cache->{'StatisticsMaps'} ne $cache->{$sequence.':title'}) { |
elsif($Status eq 'Expired' ) { $OpSel2 = ' selected'; } |
next; |
else { $OpSel1 = ' selected'; } |
} |
|
if($currentSequence == -1 || |
my $Ptr = ''; |
($sortProblems eq 'Sort Within Sequence' && |
$Ptr .= '<tr><td align="right"><b>Student Status:</b></td>'."\n"; |
$currentSequence != $sequence)) { |
$Ptr .= '<td align="left"><select name="Status">'; |
if($displayFormat ne 'Display CSV Format') { |
$Ptr .= '<option'.$OpSel1.'>Active</option>'."\n"; |
if($currentSequence ne -1) { |
$Ptr .= '<option'.$OpSel2.'>Expired</option>'."\n"; |
$r->print('</table>'); |
$Ptr .= '<option'.$OpSel3.'>Any</option>'."\n"; |
$r->print('</td></tr></table><br>'); |
$Ptr .= '</select></td></tr>'."\n"; |
} |
|
if($sortProblems eq 'Sort Within Sequence') { |
return $Ptr; |
$r->print('<b>'.$cache->{$sequence.':title'}.'</b>'); |
|
} |
|
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
|
$r->print('<table border="0" cellpadding="3">'."\n"); |
|
$r->print(&CreateProblemStatisticsTableHeading($headings, $r)); |
|
} else { |
|
if($sortProblems eq 'Sort Within Sequence') { |
|
$r->print('"'.$cache->{$sequence.':title'}.'"'); |
|
} |
|
$r->print('<br>'); |
|
} |
|
$currentSequence = $sequence; |
|
} |
|
my $ref = '<a href="'.$cache->{$problem.':source'}. |
|
'" target="_blank">'.$cache->{$problem.':title'}.'</a>'; |
|
my $title = $cache->{$problem.':title'}; |
|
if($part != 0) { |
|
$title .= ' Part '.$part; |
|
} |
|
my $source = $cache->{$problem.':source'}; |
|
my $tableData = join('&', $ref, $title, $source, |
|
$cache->{$_.':studentCount'}, |
|
$cache->{$_.':totalTries'}, |
|
$cache->{$_.':maxTries'}, |
|
$cache->{$_.':mean'}, |
|
$cache->{$_.':correct'}, |
|
$cache->{$_.':correctByOverride'}, |
|
$cache->{$_.':percentWrong'}, |
|
$cache->{$_.':degreeOfDifficulty'}, |
|
$cache->{$_.':standardDeviation'}, |
|
$cache->{$_.':skewness'}, |
|
$cache->{$_.':discriminationFactor1'}, |
|
$cache->{$_.':discriminationFactor2'}); |
|
&TableRow($displayFormat,$tableData,$count,$r,$color); |
|
$count++; |
|
} |
|
if($displayFormat ne 'Display CSV Format') { |
|
$r->print('</table>'."\n"); |
|
$r->print('</td></tr></table>'); |
|
} else { |
|
$r->print('<br>'); |
|
} |
|
return; |
} |
} |
|
|
sub AscendOrderOptions { |
sub TableRow { |
my ($order)=@_; |
my ($displayFormat,$Str,$RealIdx,$r,$color)=@_; |
|
my($ref,$title,$source,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, |
my $OpSel1 = ''; |
$Wrng,$DoD,$SD,$Sk,$_D1,$_D2)=split(/\&/,$Str); |
my $OpSel2 = ''; |
my $Ptr; |
|
if($displayFormat eq 'Display CSV Format') { |
if($order eq 'Ascending') { |
$Ptr='"'.$RealIdx.'",'."\n". |
$OpSel1 = ' selected'; |
'"'.$title.'",'."\n". |
|
'"'.$source.'",'."\n". |
|
'"'.$StdNo.'",'."\n". |
|
'"'.$TotalTries.'",'."\n". |
|
'"'.$MxTries.'",'."\n". |
|
'"'.$Avg.'",'."\n". |
|
'"'.$YES.'",'."\n". |
|
'"'.$Override.'",'."\n". |
|
'"'.$Wrng.'",'."\n". |
|
'"'.$DoD.'",'."\n". |
|
'"'.$SD.'",'."\n". |
|
'"'.$Sk.'",'."\n". |
|
'"'.$_D1.'",'."\n". |
|
'"'.$_D2.'"'."\n". |
|
"<br>\n"; |
|
$r->print("\n".$Ptr); |
} else { |
} else { |
$OpSel2 = ' selected'; |
$Ptr='<tr>'."\n". |
|
'<td bgcolor="#ffffe6">'.$RealIdx.'</td>'."\n". |
|
'<td bgcolor="#ffffe6">'.$ref.'</td>'."\n". |
|
'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'."\n". |
|
'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'."\n". |
|
'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'."\n". |
|
'<td bgcolor='.$color->{"gb"}.'>'.$Avg.'</td>'."\n". |
|
'<td bgcolor='.$color->{"gb"}.'> '.$YES.'</td>'."\n". |
|
'<td bgcolor='.$color->{"gb"}.'> '.$Override.'</td>'."\n". |
|
'<td bgcolor='.$color->{"red"}.'> '.$Wrng.'</td>'."\n". |
|
'<td bgcolor='.$color->{"red"}.'> '.$DoD.'</td>'."\n". |
|
'<td bgcolor='.$color->{"green"}.'> '.$SD.'</td>'."\n". |
|
'<td bgcolor='.$color->{"green"}.'> '.$Sk.'</td>'."\n". |
|
'<td bgcolor='.$color->{"purple"}.'> '.$_D1.'</td>'."\n". |
|
'<td bgcolor='.$color->{"purple"}.'> '.$_D2.'</td>'."\n"; |
|
$r->print($Ptr.'</tr>'."\n"); |
|
} |
|
return; |
|
} |
|
|
|
# For loading the colored table for display or un-colored for print |
|
sub setbgcolor { |
|
my $PrintTable=shift; |
|
my %color; |
|
if ($PrintTable){ |
|
$color{"gb"}="#FFFFFF"; |
|
$color{"red"}="#FFFFFF"; |
|
$color{"yellow"}="#FFFFFF"; |
|
$color{"green"}="#FFFFFF"; |
|
$color{"purple"}="#FFFFFF"; |
|
} else { |
|
$color{"gb"}="#DDFFFF"; |
|
$color{"red"}="#FFDDDD"; |
|
$color{"yellow"}="#EEFFCC"; |
|
$color{"green"}="#DDFFDD"; |
|
$color{"purple"}="#FFDDFF"; |
} |
} |
|
return \%color; |
my $Ptr = ''; |
|
$Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n"; |
|
$Ptr .= '<td align="left"><select name="Ascend">'."\n"; |
|
$Ptr .= '<option'.$OpSel1.'>Ascending</option>'."\n". |
|
'<option'.$OpSel2.'>Descending</option>'."\n"; |
|
$Ptr .= '</select></td></tr>'."\n"; |
|
|
|
return $Ptr; |
|
} |
} |
|
|
sub ProblemStatisticsButtons { |
sub ProblemStatisticsButtons { |
my ($displayFormat)=@_; |
my ($displayFormat, $displayLegend, $sortProblems)=@_; |
|
|
my $Ptr = '<tr><td></td><td align="left">'; |
my $Ptr = '<tr><td></td><td align="left">'; |
$Ptr .= '<input type=submit name="ProblemStatisticsRecalculate" '; |
|
$Ptr .= 'value="Recalculate Statistics"/>'."\n"; |
|
$Ptr .= ' '; |
|
$Ptr .= '<input type="submit" name="DoDiffGraph" '; |
$Ptr .= '<input type="submit" name="DoDiffGraph" '; |
$Ptr .= 'value="DoDiff Graph" />'."\n"; |
$Ptr .= 'value="Plot Degree of Difficulty" />'."\n"; |
$Ptr .= ' '; |
$Ptr .= '</td><td align="left">'; |
$Ptr .= '<input type="submit" name="PercentWrongGraph" '; |
$Ptr .= '<input type="submit" name="PercentWrongGraph" '; |
$Ptr .= 'value="%Wrong Graph" />'."\n"; |
$Ptr .= 'value="Plot Percent Wrong" />'."\n"; |
$Ptr .= ' '; |
$Ptr .= '</td></tr><tr><td></td><td>'."\n"; |
|
$Ptr .= '<input type="submit" name="SortProblems" '; |
|
if($sortProblems eq 'Sort All Problems') { |
|
$Ptr .= 'value="Sort Within Sequence" />'."\n"; |
|
} else { |
|
$Ptr .= 'value="Sort All Problems" />'."\n"; |
|
} |
|
$Ptr .= '</td><td align="left">'; |
|
$Ptr .= '<input type="submit" name="DisplayLegend" '; |
|
if($displayLegend eq 'Show Legend') { |
|
$Ptr .= 'value="Hide Legend" />'."\n"; |
|
} else { |
|
$Ptr .= 'value="Show Legend" />'."\n"; |
|
} |
|
$Ptr .= '</td><td align="left">'; |
$Ptr .= '<input type="submit" name="DisplayCSVFormat" '; |
$Ptr .= '<input type="submit" name="DisplayCSVFormat" '; |
if($displayFormat eq 'Display CSV Format') { |
if($displayFormat eq 'Display CSV Format') { |
$Ptr .= 'value="Display CSV Format" />'."\n"; |
|
} else { |
|
$Ptr .= 'value="Display Table Format" />'."\n"; |
$Ptr .= 'value="Display Table Format" />'."\n"; |
|
} else { |
|
$Ptr .= 'value="Display CSV Format" />'."\n"; |
} |
} |
$Ptr .= '</td></tr>'; |
$Ptr .= '</td></tr>'; |
|
|
return $Ptr; |
return $Ptr; |
} |
} |
|
|
Line 972 sub ProblemStatisticsLegend {
|
Line 863 sub ProblemStatisticsLegend {
|
my $Ptr = ''; |
my $Ptr = ''; |
$Ptr = '<table border="0">'; |
$Ptr = '<table border="0">'; |
$Ptr .= '<tr><td>'; |
$Ptr .= '<tr><td>'; |
$Ptr .= '<b>#Stdnts</b>:</td>'; |
$Ptr .= '<b>#Stdnts</b></td>'; |
$Ptr .= '<td>Total Number of Students opened the problem.'; |
$Ptr .= '<td>Total number of students attempted the problem.'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>Tries</b>:</td>'; |
$Ptr .= '<b>Tries</b></td>'; |
$Ptr .= '<td>Total Number of Tries for solving the problem.'; |
$Ptr .= '<td>Total number of tries for solving the problem.'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>Mod</b>:</td>'; |
$Ptr .= '<b>Mod</b></td>'; |
$Ptr .= '<td>Maximunm Number of Tries for solving the problem.'; |
$Ptr .= '<td>Largest number of tries for solving the problem by a student.'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>Mean</b>:</td>'; |
$Ptr .= '<b>Mean</b></td>'; |
$Ptr .= '<td>Average Number of the tries. [ Tries / #Stdnts ]'; |
$Ptr .= '<td>Average number of tries. [ Tries / #Stdnts ]'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>#YES</b>:</td>'; |
$Ptr .= '<b>#YES</b></td>'; |
$Ptr .= '<td>Number of students solved the problem correctly.'; |
$Ptr .= '<td>Number of students solved the problem correctly.'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>#yes</b>:</td>'; |
$Ptr .= '<b>#yes</b></td>'; |
$Ptr .= '<td>Number of students solved the problem by override.'; |
$Ptr .= '<td>Number of students solved the problem by override.'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>%Wrng</b>:</td>'; |
$Ptr .= '<b>%Wrong</b></td>'; |
$Ptr .= '<td>Percentage of students tried to solve the problem '; |
$Ptr .= '<td>Percentage of students who tried to solve the problem '; |
$Ptr .= 'but still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]'; |
$Ptr .= 'but is still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>DoDiff</b>:</td>'; |
$Ptr .= '<b>DoDiff</b></td>'; |
$Ptr .= '<td>Degree of Difficulty of the problem. '; |
$Ptr .= '<td>Degree of Difficulty of the problem. '; |
$Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]'; |
$Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>S.D.</b>:</td>'; |
$Ptr .= '<b>S.D.</b></td>'; |
$Ptr .= '<td>Standard Deviation of the tries. '; |
$Ptr .= '<td>Standard Deviation of the tries. '; |
$Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) '; |
$Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) '; |
$Ptr .= 'where Xi denotes every student\'s tries ]'; |
$Ptr .= 'where Xi denotes every student\'s tries ]'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>Skew.</b>:</td>'; |
$Ptr .= '<b>Skew.</b></td>'; |
$Ptr .= '<td>Skewness of the students tries.'; |
$Ptr .= '<td>Skewness of the students tries.'; |
$Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]'; |
$Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '</td></tr><tr><td>'; |
$Ptr .= '<b>Dis.F.</b>:</td>'; |
$Ptr .= '<b>Dis.F.</b></td>'; |
$Ptr .= '<td>Discrimination Factor: A Standard for evaluating the '; |
$Ptr .= '<td>Discrimination Factor: A Standard for evaluating the '; |
$Ptr .= 'problem according to a Criterion<br>'; |
$Ptr .= 'problem according to a Criterion<br>'; |
$Ptr .= '<b>[Applied Criterion in %27 Upper Students - '; |
$Ptr .= '<b>[Criterion to group students into %27 Upper Students - '; |
$Ptr .= 'Applied the same Criterion in %27 Lower Students]</b><br>'; |
$Ptr .= 'and %27 Lower Students]</b><br>'; |
$Ptr .= '<b>1st Criterion</b> for Sorting the Students: '; |
$Ptr .= '<b>1st Criterion</b> for Sorting the Students: '; |
$Ptr .= '<b>Sum of Partial Credit Awarded / Total Number of Tries</b><br>'; |
$Ptr .= '<b>Sum of Partial Credit Awarded / Total Number of Tries</b><br>'; |
$Ptr .= '<b>2nd Criterion</b> for Sorting the Students: '; |
$Ptr .= '<b>2nd Criterion</b> for Sorting the Students: '; |
Line 1020 sub ProblemStatisticsLegend {
|
Line 911 sub ProblemStatisticsLegend {
|
$Ptr .= '<tr><td><b>Disc.</b></td>'; |
$Ptr .= '<tr><td><b>Disc.</b></td>'; |
$Ptr .= '<td>Number of Students had at least one discussion.'; |
$Ptr .= '<td>Number of Students had at least one discussion.'; |
$Ptr .= '</td></tr></table>'; |
$Ptr .= '</td></tr></table>'; |
|
|
return $Ptr; |
return $Ptr; |
} |
} |
|
|
#---- END Problem Statistics Web Page ---------------------------------------- |
#---- END Problem Statistics Web Page ---------------------------------------- |
|
|
#---- Problem Statistics Graph Web Page -------------------------------------- |
|
|
|
# ------------------------------------------- Prepare data for Graphical chart |
|
|
|
sub GetGraphData { |
|
my ($ylab,$r,%GraphDat)=@_; |
|
my $Col; |
|
my $data=''; |
|
my $count = 0; |
|
my $Max = 0; |
|
my $cid=$ENV{'request.course.id'}; |
|
my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}". |
|
"_$ENV{'user.domain'}_$cid\_graph.db"; |
|
foreach (keys %GraphDat) {delete $GraphDat{$_};} |
|
if (-e "$GraphDB") { |
|
if (tie(%GraphDat,'GDBM_File',"$GraphDB",&GDBM_READER,0640)) { |
|
if ( $ylab eq 'DoDiff Graph' ) { |
|
$ylab = 'Degree-of-Difficulty'; |
|
$Col = 0; |
|
} |
|
else { |
|
$ylab = 'Wrong-Percentage'; |
|
$Col = 1; |
|
} |
|
foreach (sort NumericSort keys %GraphDat) { |
|
my @Temp=split(/\:/,$GraphDat{$_}); |
|
my $inf = $Temp[$Col]; |
|
if ( $Max < $inf ) {$Max = $inf;} |
|
$data .= $inf.','; |
|
$count++; |
|
} |
|
if ( $Max > 1 ) { |
|
$Max += (10 - $Max % 10); |
|
$Max = int($Max); |
|
} |
|
else { $Max = 1; } |
|
untie(%GraphDat); |
|
my $Course = $ENV{'course.'.$cid.'.description'}; |
|
$Course =~ s/\ /"_"/eg; |
|
my $GData=$Course.'&'.'Problems'.'&'.$ylab.'&'. |
|
$Max.'&'.$count.'&'.$data; |
|
} |
|
else { |
|
$r->print("Unable to tie hash to db file"); |
|
} |
|
} |
|
} |
|
1; |
1; |
__END__ |
__END__ |