version 1.23, 2002/08/13 15:05:13
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version 1.34, 2002/10/30 18:37:00
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Line 45 use GDBM_File;
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Line 45 use GDBM_File;
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my $jr; |
my $jr; |
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sub BuildProblemStatisticsPage { |
sub InitializeProblemStatistics { |
my ($cacheDB, $students, $courseID, $c, $r)=@_; |
my ($cacheDB, $students, $courseID, $c, $r)=@_; |
my %cache; |
my %cache; |
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$jr = $r; |
$jr = $r; |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
$r->print('Unable to tie database.'); |
$r->print('Unable to tie database1.'); |
return; |
return ('ERROR', undef); |
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} |
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# Remove students who don't have the proper section. |
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my @sectionsSelected = split(':',$cache{'sectionsSelected'}); |
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for(my $studentIndex=((scalar @$students)-1); $studentIndex>=0; |
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$studentIndex--) { |
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my $value = $cache{$students->[$studentIndex].':section'}; |
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my $found = 0; |
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foreach (@sectionsSelected) { |
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if($_ eq 'none') { |
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if($value eq '' || !defined($value) || $value eq ' ') { |
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$found = 1; |
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last; |
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} |
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} else { |
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if($value eq $_) { |
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$found = 1; |
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last; |
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} |
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} |
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} |
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if($found == 0) { |
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splice(@$students, $studentIndex, 1); |
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} |
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} |
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my $isNotCached = 0; |
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my $lastStatus = (defined($cache{'StatisticsLastStatus'})) ? |
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$cache{'StatisticsLastStatus'} : 'Nothing'; |
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my $whichStudents = join(':::',sort(@$students)); |
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if(!defined($cache{'StatisticsCached'}) || |
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$lastStatus ne $cache{'Status'} || |
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$whichStudents ne $cache{'StatisticsWhichStudents'}) { |
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$isNotCached = 1; |
} |
} |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { |
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$r->print('Unable to tie database.2'); |
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return ('ERROR', undef); |
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} |
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if($isNotCached && defined($cache{'StatisticsCached'})) { |
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my @statkeys = split(':::', $cache{'StatisticsKeys'}); |
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delete $cache{'StatisticsKeys'}; |
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delete $cache{'StatisticsCached'}; |
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foreach(@statkeys) { |
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delete $cache{$_}; |
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} |
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} |
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untie(%cache); |
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if($isNotCached) { |
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&Apache::loncoursedata::DownloadStudentCourseDataSeparate($students, |
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'true', |
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$cacheDB, |
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'true', |
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'true', |
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$courseID, |
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$r, $c); |
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} |
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if($c->aborted()) { return ('ERROR', undef); } |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
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$r->print('Unable to tie database.3'); |
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return ('ERROR', undef); |
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} |
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my $problemData; |
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if($isNotCached) { |
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($problemData) = &ExtractStudentData(\%cache, $students); |
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&CalculateStatistics($problemData, \%cache, $courseID); |
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} |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { |
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$r->print('Unable to tie database.4'); |
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return ('ERROR', undef); |
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} |
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if($isNotCached) { |
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foreach(keys(%$problemData)) { |
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$cache{$_} = $problemData->{$_}; |
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} |
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$cache{'StatisticsKeys'} = join(':::', keys(%$problemData)); |
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$cache{'StatisticsCached'} = 'true'; |
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$cache{'StatisticsLastStatus'} = $cache{'Status'}; |
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$cache{'StatisticsWhichStudents'} = $whichStudents; |
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} |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
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$r->print('Unable to tie database.5'); |
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return ('ERROR', undef); |
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} |
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my $orderedProblems = &SortProblems(\%cache, |
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$cache{'ProblemStatisticsSort'}, |
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$cache{'SortProblems'}, |
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$cache{'ProblemStatisticsAscend'}); |
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untie(%cache); |
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return ('OK', $orderedProblems); |
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} |
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sub BuildProblemStatisticsPage { |
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my ($cacheDB, $students, $courseID, $c, $r)=@_; |
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my @Header = ("Homework Sets Order","#Stdnts","Tries","Mod", |
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"Mean","#YES","#yes","%Wrng","DoDiff", |
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"S.D.","Skew.","D.F.1st","D.F.2nd"); |
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my $color=&setbgcolor(0); |
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my %cache; |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
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$r->print('Unable to tie database.6'); |
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return; |
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} |
my $Ptr = ''; |
my $Ptr = ''; |
$Ptr .= '<table border="0"><tbody>'; |
$Ptr .= '<table border="0" cellspacing="5"><tbody>'; |
$Ptr .= '<tr><td align="right"><b>Select Map</b></td>'."\n"; |
$Ptr .= '<tr><td align="right"><b>Select Map</b></td>'."\n"; |
$Ptr .= '<td align="left">'; |
$Ptr .= '<td align="left">'; |
$Ptr .= &Apache::lonhtmlcommon::MapOptions(\%cache, 'ProblemStatistics', |
$Ptr .= &Apache::lonhtmlcommon::MapOptions(\%cache, 'Statistics', |
'Statistics'); |
'Statistics'); |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n"; |
$Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n"; |
$Ptr .= '<td align="left">'."\n"; |
$Ptr .= '<td align="left">'."\n"; |
$Ptr .= &Apache::lonhtmlcommon::AscendOrderOptions( |
$Ptr .= &Apache::lonhtmlcommon::AscendOrderOptions( |
$cache{'ProblemStatisticsAscend'}, |
$cache{'ProblemStatisticsAscend'}, |
'ProblemStatistics', |
'ProblemStatistics', |
'Statistics'); |
'Statistics'); |
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$Ptr .= '</td></tr>'."\n"; |
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$Ptr .= '<tr><td align="right"><b>Select Sections</b>'; |
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$Ptr .= '</td>'."\n"; |
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$Ptr .= '<td align="left">'."\n"; |
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my @sections = split(':',$cache{'sectionList'}); |
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my @sectionsSelected = split(':',$cache{'sectionsSelected'}); |
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$Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections, |
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\@sectionsSelected, |
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'Statistics'); |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= &ProblemStatisticsButtons($cache{'DisplayFormat'}, |
$Ptr .= &ProblemStatisticsButtons($cache{'DisplayFormat'}, |
$cache{'DisplayLegend'}); |
$cache{'DisplayLegend'}, |
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$cache{'SortProblems'}); |
$Ptr .= '</table>'; |
$Ptr .= '</table>'; |
if($cache{'DisplayLegend'} eq 'Show Legend') { |
if($cache{'DisplayLegend'} eq 'Show Legend') { |
$Ptr .= &ProblemStatisticsLegend(); |
$Ptr .= &ProblemStatisticsLegend(); |
} |
} |
$r->print($Ptr); |
$r->print($Ptr); |
$r->rflush(); |
$r->rflush(); |
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untie(%cache); |
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my @Header = ("Homework Sets Order","#Stdnts","Tries","Mod", |
my ($result, $orderedProblems) = |
"Mean","#YES","#yes","%Wrng","DoDiff", |
&InitializeProblemStatistics($cacheDB, $students, $courseID, $c, $r); |
"S.D.","Skew.","D.F.1st","D.F.2nd","Disc."); |
if($result ne 'OK') { |
my $color=&setbgcolor(0); |
return; |
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} |
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# my %Discuss=&Apache::loncoursedata::LoadDiscussion($courseID); |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
# my ($upper, $lower) = &Discriminant(\%discriminant,$r); |
$r->print('Unable to tie database.6'); |
if(!defined($cache{'StatisticsCached'})) { |
return; |
untie(%cache); |
} |
&Apache::loncoursedata::DownloadStudentCourseDataSeparate($students, |
&BuildStatisticsTable(\%cache, $cache{'DisplayFormat'}, |
'true', |
$cache{'SortProblems'}, $orderedProblems, |
$cacheDB, |
\@Header, $r, $color); |
'true', |
untie(%cache); |
'true', |
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$courseID, |
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$r, $c); |
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if($c->aborted()) { return; } |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
return; |
$r->print('Unable to tie database.'); |
} |
return; |
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} |
sub BuildGraphicChart { |
my ($problemData) = &ExtractStudentData(\%cache, $students); |
my ($graph,$cacheDB,$courseDescription,$students,$courseID,$r,$c)=@_; |
&CalculateStatistics($problemData); |
my %cache; |
untie(%cache); |
my $max = 0; |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { |
return 'Unable to tie database.7'; |
$r->print('Unable to tie database.'); |
} |
return; |
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} |
# my @problems = split(':::', $cache{'problemList'}); |
foreach(keys(%$problemData)) { |
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$cache{$_} = $problemData->{$_}; |
my $title = ''; |
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if($graph eq 'DoDiffGraph') { |
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$title = 'Degree-of-Difficulty'; |
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} else { |
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$title = 'Wrong-Percentage'; |
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} |
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# foreach (@problems) { |
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# my $data = 0; |
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# if($graph eq 'DoDiffGraph') { |
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# $data = sprintf("%.2f", $cache{$_.':degreeOfDifficulty'}), |
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# } else { |
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# $data = sprintf("%.1f", $cache{$_.':percentWrong'}), |
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# } |
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# if($max < $data) { |
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# $max = $data; |
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# } |
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# push(@values, $data); |
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# } |
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my $count = 1; |
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my $currentSequence = -1; |
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my $sortProblems = 'Sort Within Sequence'; |
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my ($result, $orderedProblems) = |
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&InitializeProblemStatistics($cacheDB, $students, $courseID, $c, $r); |
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if($result ne 'OK') { |
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return; |
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} |
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my @values = (); |
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foreach(@$orderedProblems) { |
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my ($sequence,$problem,$part)=split(':', $_); |
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if($cache{'StatisticsMaps'} ne 'All Maps' && |
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$cache{'StatisticsMaps'} ne $cache{$sequence.':title'}) { |
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next; |
} |
} |
$cache{'StatisticsCached'} = 'true'; |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
if($currentSequence == -1 || |
$r->print('Unable to tie database.'); |
($sortProblems eq 'Sort Within Sequence' && |
return; |
$currentSequence != $sequence)) { |
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if($currentSequence ne -1) { |
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#$r->print('<br>finish a graph<br>'); |
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} |
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if($sortProblems eq 'Sort Within Sequence') { |
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$r->print('<b>'.$cache{$sequence.':title'}.'</b>'); |
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} |
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my $sendValues = join(',', @values); |
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my $sendCount = scalar(@values); |
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my @GData = ($courseDescription, 'Problems', |
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$title, $max, $sendCount, $sendValues); |
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$r->print('</form>'."\n"); |
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$r->print('<IMG src="/cgi-bin/graph.gif?'. |
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(join('&', @GData)).'" border="1" />'); |
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$r->print('<form>'."\n"); |
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$currentSequence = $sequence; |
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@values = (); |
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} |
} |
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my $data = 0; |
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if($graph eq 'DoDiffGraph') { |
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$data = sprintf("%.2f", $cache{$_.':degreeOfDifficulty'}), |
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} else { |
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$data = sprintf("%.1f", $cache{$_.':percentWrong'}), |
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} |
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if($max < $data) { |
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$max = $data; |
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} |
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push(@values, $data); |
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} |
} |
my $orderedProblems = &SortProblems(\%cache, |
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$cache{'ProblemStatisticsSort'}, |
#$r->print('<br>'); |
$cache{'ProblemStatisticsAscend'}); |
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&BuildStatisticsTable(\%cache, $cache{'DisplayFormat'}, $orderedProblems, |
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\@Header, $r, $color); |
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untie(%cache); |
untie(%cache); |
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return; |
return; |
Line 140 sub CreateProblemStatisticsTableHeading
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Line 325 sub CreateProblemStatisticsTableHeading
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$Str .= '<tr>'."\n"; |
$Str .= '<tr>'."\n"; |
$Str .= '<th bgcolor="#ffffe6">P#</th>'."\n"; |
$Str .= '<th bgcolor="#ffffe6">P#</th>'."\n"; |
foreach(@$headings) { |
foreach(@$headings) { |
$Str .= '<th bgcolor="#ffffe6">'.'<a href="/adm/statistics?reportSelected='; |
$Str .= '<th bgcolor="#ffffe6">'; |
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$Str .= '<a href="/adm/statistics?reportSelected='; |
$Str .= &Apache::lonnet::escape('Problem Statistics'); |
$Str .= &Apache::lonnet::escape('Problem Statistics'); |
$Str .= '&ProblemStatisticsSort='; |
$Str .= '&ProblemStatisticsSort='; |
$Str .= &Apache::lonnet::escape($_).'">'.$_.'</a> </th>'."\n"; |
$Str .= &Apache::lonnet::escape($_).'">'.$_.'</a> </th>'."\n"; |
} |
} |
$Str .= "\n".'</tr>'."\n"; |
$Str .= "\n".'</tr>'."\n"; |
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return $Str; |
return $Str; |
} |
} |
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sub BuildStatisticsTable { |
sub BuildStatisticsTable { |
my ($cache,$displayFormat,$orderedProblems,$headings,$r,$color)=@_; |
my ($cache,$displayFormat,$sortProblems,$orderedProblems,$headings, |
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$r,$color)=@_; |
#6666666 |
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# my $file="/home/httpd/perl/tmp/183d.txt"; |
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# open(OUT, ">$file"); |
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#6666666 |
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## &Apache::lonstatistics::Create_PrgWin($r); |
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##777777 |
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## my (%Activity) = &LoadActivityLog(); |
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## $r->print('<script>popwin.document.popremain.remaining.value="'. |
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## 'Loading Discussion...";</script>'); |
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## my ($doDiffFile) = &LoadDoDiffFile(); |
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##777777 |
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## $Str .= &Classify($discriminantFactor, $students); |
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if($displayFormat ne 'Display CSV Format') { |
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$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
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$r->print('<table border="0" cellpadding="3">'."\n"); |
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$r->print(&CreateProblemStatisticsTableHeading($headings, $r)); |
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} else { |
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$r->print('<br>'); |
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} |
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my $count = 1; |
my $count = 1; |
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my $currentSequence = -1; |
foreach(@$orderedProblems) { |
foreach(@$orderedProblems) { |
my ($sequence,$problem,$part)=split(':', $_); |
my ($sequence,$problem,$part)=split(':', $_); |
if($cache->{'ProblemStatisticsMaps'} ne 'All Maps' && |
if($cache->{'StatisticsMaps'} ne 'All Maps' && |
$cache->{'ProblemStatisticsMaps'} ne $cache->{$sequence.':title'}) { |
$cache->{'StatisticsMaps'} ne $cache->{$sequence.':title'}) { |
next; |
next; |
} |
} |
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if($currentSequence == -1 || |
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($sortProblems eq 'Sort Within Sequence' && |
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$currentSequence != $sequence)) { |
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if($displayFormat ne 'Display CSV Format') { |
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if($currentSequence ne -1) { |
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$r->print('</table>'); |
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$r->print('</td></tr></table><br>'); |
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} |
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if($sortProblems eq 'Sort Within Sequence') { |
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$r->print('<b>'.$cache->{$sequence.':title'}.'</b>'); |
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} |
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$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
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$r->print('<table border="0" cellpadding="3">'."\n"); |
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$r->print(&CreateProblemStatisticsTableHeading($headings, $r)); |
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} else { |
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if($sortProblems eq 'Sort Within Sequence') { |
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$r->print('"'.$cache->{$sequence.':title'}.'"'); |
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} |
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$r->print('<br>'); |
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} |
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$currentSequence = $sequence; |
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} |
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my $ref = '<a href="'.$cache->{$problem.':source'}. |
my $ref = '<a href="'.$cache->{$problem.':source'}. |
'" target="_blank">'.$cache->{$problem.':title'}.'</a>'; |
'" target="_blank">'.$cache->{$problem.':title'}.'</a>'; |
# my $ref = $cache->{$problem.':title'}; |
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my $title = $cache->{$problem.':title'}; |
my $title = $cache->{$problem.':title'}; |
my $source = 'source'; |
if($part != 0) { |
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$title .= ' Part '.$part; |
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} |
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my $source = $cache->{$problem.':source'}; |
my $tableData = join('&', $ref, $title, $source, |
my $tableData = join('&', $ref, $title, $source, |
$cache->{$_.':studentCount'}, |
$cache->{$_.':studentCount'}, |
$cache->{$_.':totalTries'}, |
$cache->{$_.':totalTries'}, |
$cache->{$_.':maxTries'}, |
$cache->{$_.':maxTries'}, |
sprintf("%.2f", $cache->{$_.':mean'}), |
$cache->{$_.':mean'}, |
$cache->{$_.':correct'}, |
$cache->{$_.':correct'}, |
$cache->{$_.':correctByOverride'}, |
$cache->{$_.':correctByOverride'}, |
sprintf("%.1f", $cache->{$_.':percentWrong'}), |
$cache->{$_.':percentWrong'}, |
sprintf("%.2f", $cache->{$_.':degreeOfDifficulty'}), |
$cache->{$_.':degreeOfDifficulty'}, |
sprintf("%.1f", $cache->{$_.':standardDeviation'}), |
$cache->{$_.':standardDeviation'}, |
sprintf("%.1f", $cache->{$_.':skewness'}), |
$cache->{$_.':skewness'}, |
sprintf("%.2f", $cache->{$_.':discriminationFactor1'}), |
$cache->{$_.':discriminationFactor1'}, |
sprintf("%.2f", $cache->{$_.':discriminationFactor2'}), |
$cache->{$_.':discriminationFactor2'}); |
0); # 0 is for discussion, need to figure out |
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#6666666 |
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# $r->print('<br>'.$out.'&'.$DoD); |
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# print (OUT $out.'@'.$DoD.'&'); |
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#6666666 |
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#check with Gerd |
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# $urlres=~/^(\w+)\/(\w+)/; |
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# if ($StdNo) { |
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# &Apache::lonnet::put('nohist_resevaldata',\%storestats, |
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# $1,$2); |
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# } |
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#-------------------------------- Row of statistical table |
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&TableRow($displayFormat,$tableData,$count,$r,$color); |
&TableRow($displayFormat,$tableData,$count,$r,$color); |
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$count++; |
$count++; |
} |
} |
if($cache->{'DisplayFormat'} ne 'Display CSV Format') { |
if($displayFormat ne 'Display CSV Format') { |
$r->print('</table>'."\n"); |
$r->print('</table>'."\n"); |
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$r->print('</td></tr></table>'); |
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} else { |
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$r->print('<br>'); |
} |
} |
$r->print('</td></tr></table>'); |
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#6666666 |
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# close( OUT ); |
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#666666 |
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return; |
return; |
} |
} |
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sub TableRow { |
sub TableRow { |
my ($displayFormat,$Str,$RealIdx,$r,$color)=@_; |
my ($displayFormat,$Str,$RealIdx,$r,$color)=@_; |
my($ref,$title,$source,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, |
my($ref,$title,$source,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, |
$Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$DiscNo,$Prob)=split(/\&/,$Str); |
$Wrng,$DoD,$SD,$Sk,$_D1,$_D2)=split(/\&/,$Str); |
my $Ptr; |
my $Ptr; |
if($displayFormat eq 'Display CSV Format') { |
if($displayFormat eq 'Display CSV Format') { |
$Ptr="\n".'<br>'. |
$Ptr='"'.$RealIdx.'",'."\n". |
"\n".'"'.$RealIdx.'",'. |
'"'.$title.'",'."\n". |
"\n".'"'.$title.'",'. |
'"'.$source.'",'."\n". |
"\n".'"'.$source.'",'. |
'"'.$StdNo.'",'."\n". |
"\n".'"'.$StdNo.'",'. |
'"'.$TotalTries.'",'."\n". |
"\n".'"'.$TotalTries.'",'. |
'"'.$MxTries.'",'."\n". |
"\n".'"'.$MxTries.'",'. |
'"'.$Avg.'",'."\n". |
"\n".'"'.$Avg.'",'. |
'"'.$YES.'",'."\n". |
"\n".'"'.$YES.'",'. |
'"'.$Override.'",'."\n". |
"\n".'"'.$Override.'",'. |
'"'.$Wrng.'",'."\n". |
"\n".'"'.$Wrng.'",'. |
'"'.$DoD.'",'."\n". |
"\n".'"'.$DoD.'",'. |
'"'.$SD.'",'."\n". |
"\n".'"'.$SD.'",'. |
'"'.$Sk.'",'."\n". |
"\n".'"'.$Sk.'",'. |
'"'.$_D1.'",'."\n". |
"\n".'"'.$_D1.'",'. |
'"'.$_D2.'"'."\n". |
"\n".'"'.$_D2.'"'. |
"<br>\n"; |
"\n".'"'.$DiscNo.'"'; |
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$r->print("\n".$Ptr); |
$r->print("\n".$Ptr); |
} else { |
} else { |
$Ptr="\n".'<tr>'. |
$Ptr='<tr>'."\n". |
"\n".'<td bgcolor="#ffffe6">'.$RealIdx.'</td>'. |
'<td bgcolor="#ffffe6">'.$RealIdx.'</td>'."\n". |
"\n".'<td bgcolor="#ffffe6">'.$ref.'</td>'. |
'<td bgcolor="#ffffe6">'.$ref.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'. |
'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'. |
'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'. |
'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"gb"}.'>'.$Avg.'</td>'. |
'<td bgcolor='.$color->{"gb"}.'>'.$Avg.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"gb"}.'> '.$YES.'</td>'. |
'<td bgcolor='.$color->{"gb"}.'> '.$YES.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"gb"}.'> '.$Override.'</td>'. |
'<td bgcolor='.$color->{"gb"}.'> '.$Override.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"red"}.'> '.$Wrng.'</td>'. |
'<td bgcolor='.$color->{"red"}.'> '.$Wrng.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"red"}.'> '.$DoD.'</td>'. |
'<td bgcolor='.$color->{"red"}.'> '.$DoD.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"green"}.'> '.$SD.'</td>'. |
'<td bgcolor='.$color->{"green"}.'> '.$SD.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"green"}.'> '.$Sk.'</td>'. |
'<td bgcolor='.$color->{"green"}.'> '.$Sk.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"purple"}.'> '.$_D1.'</td>'. |
'<td bgcolor='.$color->{"purple"}.'> '.$_D1.'</td>'."\n". |
"\n".'<td bgcolor='.$color->{"purple"}.'> '.$_D2.'</td>'. |
'<td bgcolor='.$color->{"purple"}.'> '.$_D2.'</td>'."\n"; |
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$DiscNo.'</td>'; |
$r->print($Ptr.'</tr>'."\n"); |
$r->print("\n".$Ptr.'</tr>' ); |
|
} |
} |
|
|
return; |
return; |
Line 298 sub setbgcolor {
|
Line 475 sub setbgcolor {
|
} |
} |
|
|
sub ProblemStatisticsButtons { |
sub ProblemStatisticsButtons { |
my ($displayFormat, $displayLegend)=@_; |
my ($displayFormat, $displayLegend, $sortProblems)=@_; |
|
|
my $Ptr = '<tr><td></td><td align="left">'; |
my $Ptr = '<tr><td></td><td align="left">'; |
$Ptr .= '<input type="submit" name="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 .= '</td></tr><tr><td></td><td>'."\n"; |
$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" '; |
$Ptr .= '<input type="submit" name="DisplayLegend" '; |
if($displayLegend eq 'Show Legend') { |
if($displayLegend eq 'Show Legend') { |
$Ptr .= 'value="Hide Legend" />'."\n"; |
$Ptr .= 'value="Hide Legend" />'."\n"; |
} else { |
} else { |
$Ptr .= 'value="Show Legend" />'."\n"; |
$Ptr .= 'value="Show Legend" />'."\n"; |
} |
} |
$Ptr .= ' '; |
$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 Table Format" />'."\n"; |
$Ptr .= 'value="Display Table Format" />'."\n"; |
Line 367 sub ProblemStatisticsLegend {
|
Line 551 sub ProblemStatisticsLegend {
|
$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 381 sub ProblemStatisticsLegend {
|
Line 565 sub ProblemStatisticsLegend {
|
return $Ptr; |
return $Ptr; |
} |
} |
|
|
#------- Processing upperlist and lowerlist according to each problem |
|
|
|
sub ExtractStudentData { |
sub ExtractStudentData { |
my ($cache, $students)=@_; |
my ($cache, $students)=@_; |
|
|
#$Apache::lonxml::debug=1; |
|
#&Apache::lonhomework::showhash(%$cache); |
|
#$Apache::lonxml::debug=0; |
|
|
|
my @problemList=(); |
my @problemList=(); |
my %problemData; |
my %problemData; |
foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
Line 436 sub ExtractStudentData {
|
Line 614 sub ExtractStudentData {
|
} |
} |
} |
} |
|
|
$problemData{$id.':sequenceTitle'} = |
my $studentTriesJoined = join(':::', @studentTries); |
|
$problemData{$id.':sequenceTitle'} = |
$cache->{$sequence.':title'}; |
$cache->{$sequence.':title'}; |
$problemData{$id.':studentCount'} = $studentCount; |
$problemData{$id.':studentCount'} = $studentCount; |
$problemData{$id.':totalTries'} = $totalTries; |
$problemData{$id.':totalTries'} = $totalTries; |
$problemData{$id.':studentTries'} = \@studentTries; |
$problemData{$id.':studentTries'} = $studentTriesJoined; |
$problemData{$id.':totalAwarded'} = $totalAwarded; |
$problemData{$id.':totalAwarded'} = $totalAwarded; |
$problemData{$id.':correct'} = $correct; |
$problemData{$id.':correct'} = $correct; |
$problemData{$id.':correctByOverride'} = $correctByOverride; |
$problemData{$id.':correctByOverride'} = $correctByOverride; |
Line 452 sub ExtractStudentData {
|
Line 631 sub ExtractStudentData {
|
} |
} |
} |
} |
|
|
|
my @upperStudents1=(); |
|
my @lowerStudents1=(); |
|
my @upperStudents2=(); |
|
my @lowerStudents2=(); |
|
my $upperCount = int(0.27*scalar(@$students)); |
|
# Discriminant Factor criterion 1 |
|
my $sortedStudents = &SortDivideByTries($students,$cache,':totalAwarded'); |
|
|
|
for(my $i=0; $i<$upperCount; $i++) { |
|
push(@lowerStudents1, $sortedStudents->[$i]); |
|
push(@upperStudents1, $sortedStudents->[(scalar(@$students)-$i-1)]); |
|
} |
|
|
|
$problemData{'studentsUpperListCriterion1'}=join(':::', @upperStudents1); |
|
$problemData{'studentsLowerListCriterion1'}=join(':::', @lowerStudents1); |
|
|
|
# Discriminant Factor criterion 2 |
|
$sortedStudents = &SortDivideByTries($students, $cache, ':totalSolved'); |
|
|
|
for(my $i=0; $i<$upperCount; $i++) { |
|
push(@lowerStudents2, $sortedStudents->[$i]); |
|
push(@upperStudents2, $sortedStudents->[(scalar(@$students)-$i-1)]); |
|
} |
|
$problemData{'studentsUpperListCriterion2'}=join(':::', @upperStudents2); |
|
$problemData{'studentsLowerListCriterion2'}=join(':::', @lowerStudents2); |
|
|
$problemData{'problemList'} = join(':::', @problemList); |
$problemData{'problemList'} = join(':::', @problemList); |
# $Discussed=0; |
|
# if($Discuss->{"$name:$problem"}) { |
|
# $TotDiscuss++; |
|
# $Discussed=1; |
|
# } |
|
|
|
return \%problemData; |
return \%problemData; |
} |
} |
|
|
|
sub SortDivideByTries { |
|
my ($toSort, $data, $sortOn)=@_; |
|
my @orderedData = sort { ($data->{$a.':totalTries'}) ? |
|
($data->{$a.$sortOn}/$data->{$a.':totalTries'}):0 |
|
<=> |
|
($data->{$b.':totalTries'}) ? |
|
($data->{$b.$sortOn}/$data->{$b.':totalTries'}):0 |
|
} @$toSort; |
|
|
|
return \@orderedData; |
|
} |
|
|
sub SortProblems { |
sub SortProblems { |
my ($problemData,$sortBy,$ascend)=@_; |
my ($problemData,$sortBy,$sortProblems,$ascend)=@_; |
|
|
my @problems = split(':::', $problemData->{'problemList'}); |
my @problems = split(':::', $problemData->{'problemList'}); |
if($sortBy eq "Homework Sets Order") { |
if($sortBy eq "Homework Sets Order") { |
Line 482 sub SortProblems {
|
Line 694 sub SortProblems {
|
elsif($sortBy eq "DoDiff") { $data = ':degreeOfDifficulty'; } |
elsif($sortBy eq "DoDiff") { $data = ':degreeOfDifficulty'; } |
elsif($sortBy eq "S.D.") { $data = ':standardDeviation'; } |
elsif($sortBy eq "S.D.") { $data = ':standardDeviation'; } |
elsif($sortBy eq "Skew.") { $data = ':skewness'; } |
elsif($sortBy eq "Skew.") { $data = ':skewness'; } |
elsif($sortBy eq "D.F.1st") { $data = ':discriminantFactor1'; } |
elsif($sortBy eq "D.F.1st") { $data = ':discriminationFactor1'; } |
elsif($sortBy eq "D.F.2nd") { $data = ':discriminantFactor2'; } |
elsif($sortBy eq "D.F.2nd") { $data = ':discriminationFactor2'; } |
elsif($sortBy eq "Disc.") { $data = ''; } |
|
else { return \@problems; } |
else { return \@problems; } |
|
|
my @orderedProblems = |
my %temp; |
sort { $problemData->{$a.$data} <=> $problemData->{$b.$data} } |
my @sequenceList=(); |
@problems; |
foreach(@problems) { |
|
my ($sequence) = split(':', $_); |
|
|
|
my @array=(); |
|
my $tempArray; |
|
if(defined($temp{$sequence})) { |
|
$tempArray = $temp{$sequence}; |
|
} else { |
|
push(@sequenceList, $sequence); |
|
$tempArray = \@array; |
|
$temp{$sequence} = $tempArray; |
|
} |
|
|
|
push(@$tempArray, $_); |
|
} |
|
|
|
my @orderedProblems; |
|
if($sortProblems eq "Sort Within Sequence") { |
|
foreach(keys(%temp)) { |
|
my $tempArray = $temp{$_}; |
|
my @tempOrder = |
|
sort { $problemData->{$a.$data} <=> $problemData->{$b.$data} } |
|
@$tempArray; |
|
$temp{$_} = \@tempOrder; |
|
} |
|
foreach(@sequenceList) { |
|
my $tempArray = $temp{$_}; |
|
@orderedProblems = (@orderedProblems, @$tempArray); |
|
} |
|
} else { |
|
@orderedProblems = |
|
sort { $problemData->{$a.$data} <=> $problemData->{$b.$data} } |
|
@problems; |
|
} |
|
|
if($ascend eq 'Descending') { |
if($ascend eq 'Descending') { |
@orderedProblems = reverse(@orderedProblems); |
@orderedProblems = reverse(@orderedProblems); |
} |
} |
Line 498 sub SortProblems {
|
Line 743 sub SortProblems {
|
} |
} |
|
|
sub CalculateStatistics { |
sub CalculateStatistics { |
my ($data)=@_; |
my ($data, $cache, $courseID)=@_; |
|
|
my @problems = split(':::', $data->{'problemList'}); |
my @problems = split(':::', $data->{'problemList'}); |
foreach(@problems) { |
foreach(@problems) { |
# Mean |
# Mean |
$data->{$_.':mean'} = ($data->{$_.':studentCount'}) ? |
my $mean = ($data->{$_.':studentCount'}) ? |
($data->{$_.':totalTries'} / $data->{$_.':studentCount'}) : 0; |
($data->{$_.':totalTries'} / $data->{$_.':studentCount'}) : 0; |
|
$data->{$_.':mean'} = sprintf("%.2f", $mean); |
|
|
# %Wrong |
# %Wrong |
$data->{$_.':percentWrong'} = ($data->{$_.':studentCount'}) ? |
my $pw = ($data->{$_.':studentCount'}) ? |
(($data->{$_.':wrong'} / $data->{$_.':studentCount'}) * 100.0) : |
(($data->{$_.':wrong'} / $data->{$_.':studentCount'}) * 100.0) : |
100.0; |
100.0; |
|
$data->{$_.':percentWrong'} = sprintf("%.1f", $pw); |
|
|
# Degree of Difficulty |
# Degree of Difficulty |
$data->{$_.':degreeOfDifficulty'} = ($data->{$_.':totalTries'}) ? |
my $dod = ($data->{$_.':totalTries'}) ? |
(1 - (($data->{$_.':correct'} + $data->{$_.':correctByOverride'}) / |
(1 - (($data->{$_.':correct'} + $data->{$_.':correctByOverride'}) / |
$data->{$_.':totalTries'})) : 0; |
$data->{$_.':totalTries'})) : 0; |
|
|
|
$data->{$_.':degreeOfDifficulty'} = sprintf("%.2f", $dod); |
|
|
# Factor in mean |
# Factor in mean |
my $studentTries = $data->{$_.':studentTries'}; |
my @studentTries = split(':::', $data->{$_.':studentTries'}); |
foreach(my $index=0; $index < scalar(@$studentTries); $index++) { |
foreach(my $index=0; $index < scalar(@studentTries); $index++) { |
$studentTries->[$index] -= $data->{$_.':mean'}; |
$studentTries[$index] -= $mean; |
} |
} |
my $sumSquared = 0; |
my $sumSquared = 0; |
my $sumCubed = 0; |
my $sumCubed = 0; |
foreach(@$studentTries) { |
foreach(@studentTries) { |
my $squared = ($_ * $_); |
my $squared = ($_ * $_); |
my $cubed = ($squared * $_); |
my $cubed = ($squared * $_); |
$sumSquared += $squared; |
$sumSquared += $squared; |
Line 531 sub CalculateStatistics {
|
Line 780 sub CalculateStatistics {
|
} |
} |
|
|
# Standard deviation |
# Standard deviation |
$data->{$_.':standardDeviation'} = ($data->{$_.':studentCount'} - 1) ? |
my $standardDeviation; |
((sqrt($sumSquared)) / ($data->{$_.':studentCount'} - 1)) : 0; |
if($data->{$_.':studentCount'} - 1 > 0) { |
|
$standardDeviation = (sqrt($sumSquared)) / |
|
($data->{$_.':studentCount'} - 1); |
|
} else { |
|
$standardDeviation = 0.0; |
|
} |
|
$data->{$_.':standardDeviation'} = sprintf("%.1f", $standardDeviation); |
|
|
# Skewness |
# Skewness |
my $standardDeviation = $data->{$_.':standardDeviation'}; |
my $skew; |
$data->{$_.':skewness'} = ($data->{$_.':standardDeviation'}) ? |
if($standardDeviation > 0.0999 && $data->{$_.':studentCount'} > 0) { |
(((sqrt($sumSquared)) / $data->{$_.':studentCount'}) / |
$skew = (((sqrt($sumSquared)) / $data->{$_.':studentCount'}) / |
($standardDeviation * $standardDeviation * $standardDeviation)) : |
($standardDeviation * |
0; |
$standardDeviation * |
|
$standardDeviation)); |
|
} else { |
|
$skew = 0.0; |
|
} |
|
|
# Discrimination Factor 1 |
$data->{$_.':skewness'} = sprintf("%.1f", $skew); |
$data->{$_.':discriminationFactor1'} = 0; |
|
|
|
# Discrimination Factor 2 |
# Discrimination Factor 1 |
$data->{$_.':discriminationFactor2'} = 0; |
my ($sequence, $problem, $part) = split(':', $_); |
} |
|
|
|
return; |
my @upper1 = split(':::', $data->{'studentsUpperListCriterion1'}); |
} |
my @lower1 = split(':::', $data->{'studentsLowerListCriterion1'}); |
|
|
sub ProcessDiscriminant { |
my $upper1Sum=0; |
my ($List) = @_; |
foreach my $name (@upper1) { |
my @sortedList = sort (@$List); |
$upper1Sum += $cache->{"$name:$problem:$part:awarded"}; |
my $Count = scalar @sortedList; |
|
my $Problem; |
|
my @Dis; |
|
my $Slvd=0; |
|
my $tmp; |
|
my $Sum1=0; |
|
my $Sum2=0; |
|
my $nIndex=0; |
|
my $nStudent=0; |
|
my %Proc=undef; |
|
while ($nIndex<$Count) { |
|
# $jr->print("<br> $nIndex) $sortedList[$nIndex]"); |
|
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
|
@Dis=split(/\+/,$tmp); |
|
my $Temp = $Problem; |
|
do { |
|
$nIndex++; |
|
$nStudent++; |
|
$Sum1 += $Dis[0]; |
|
$Sum2 += $Dis[1]; |
|
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
|
@Dis=split(/\+/,$tmp); |
|
} while ( $Problem eq $Temp && $nIndex < $Count ); |
|
$Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent); |
|
# $jr->print("<br> $nIndex) $Temp --> ($nStudent) $Proc{$Temp}"); |
|
$Sum1=0; |
|
$Sum2=0; |
|
$nStudent=0; |
|
} |
|
|
|
return %Proc; |
|
} |
|
|
|
#------- Creating Discimination factor |
|
sub Discriminant { |
|
my ($discriminant)=@_; |
|
my @discriminantKeys=keys(%$discriminant); |
|
my $Count = scalar @discriminantKeys; |
|
|
|
my $UpCnt = int(0.27*$Count); |
|
my $low=0; |
|
my $up=$Count-$UpCnt; |
|
my @UpList=(); |
|
my @LowList=(); |
|
|
|
$Count=0; |
|
foreach my $key (sort(@discriminantKeys)) { |
|
$Count++; |
|
if($low < $UpCnt || $Count > $up) { |
|
$low++; |
|
my $str=$discriminant->{$key}; |
|
foreach(split(/\&/,$str)){ |
|
if($_) { |
|
if($low<$UpCnt) { push(@LowList,$_); } |
|
else { push(@UpList,$_); } |
|
} |
|
} |
|
} |
} |
} |
$upper1Sum = (scalar(@upper1)) ? ($upper1Sum/(scalar(@upper1))) : 0; |
my %DisUp = &ProcessDiscriminant(\@UpList); |
|
my %DisLow = &ProcessDiscriminant(\@LowList); |
|
|
|
return (\%DisUp, \%DisLow); |
my $lower1Sum=0; |
} |
foreach my $name (@lower1) { |
|
$lower1Sum += $cache->{"$name:$problem:$part:awarded"}; |
#---- END Problem Statistics Web Page ---------------------------------------- |
} |
|
$lower1Sum = (scalar(@lower1)) ? ($lower1Sum/(scalar(@lower1))) : 0; |
#---- Problem Statistics Graph Web Page -------------------------------------- |
|
|
|
# ------------------------------------------- Prepare data for Graphical chart |
my $df1 = $upper1Sum - $lower1Sum; |
|
$data->{$_.':discriminationFactor1'} = sprintf("%.2f", $df1); |
|
|
sub BuildGraphicChart { |
# Discrimination Factor 2 |
my ($graph,$cacheDB,$courseDescription,$r)=@_; |
my @upper2 = split(':::', $data->{'studentsUpperListCriterion2'}); |
my %cache; |
my @lower2 = split(':::', $data->{'studentsLowerListCriterion2'}); |
my $max = 0; |
|
|
|
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
my $upper2Sum=0; |
return '<html><body>Unable to tie database.</body></html>'; |
foreach my $name (@upper2) { |
} |
$upper2Sum += $cache->{"$name:$problem:$part:awarded"}; |
|
} |
my @problems = split(':::', $cache{'problemList'}); |
$upper2Sum = (scalar(@upper2)) ? ($upper2Sum/(scalar(@upper2))) : 0; |
my @values = (); |
|
foreach (@problems) { |
my $lower2Sum=0; |
my $data = 0; |
foreach my $name (@lower2) { |
if($graph eq 'DoDiffGraph') { |
$lower2Sum += $cache->{"$name:$problem:$part:awarded"}; |
$data = sprintf("%.2f", $cache{$_.':degreeOfDifficulty'}), |
} |
} else { |
$lower2Sum = (scalar(@lower2)) ? ($lower2Sum/(scalar(@lower2))) : 0; |
$data = sprintf("%.1f", $cache{$_.':percentWrong'}), |
|
} |
my $df2 = $upper2Sum - $lower2Sum; |
if($max < $data) { |
$data->{$_.':discriminationFactor2'} = sprintf("%.2f", $df2); |
$max = $data; |
|
|
my %storestats; |
|
my $Average = ($data->{$_.':studentCount'}) ? |
|
$data->{$_.':totalTries'}/$data->{$_.':studentCount'} : 0; |
|
$storestats{$courseID.'___'.$cache->{$sequence.':source'}. |
|
'___timestamp'}=time; |
|
$storestats{$courseID.'___'.$cache->{$sequence.':source'}. |
|
'___stdno'}=$data->{$_.':studentCount'}; |
|
$storestats{$courseID.'___'.$cache->{$sequence.':source'}. |
|
'___avetries'}=$Average; |
|
$storestats{$courseID.'___'.$cache->{$sequence.':source'}. |
|
'___difficulty'}=$data->{$_.':degreeOfDifficulty'}; |
|
$cache->{$sequence.':source'} =~ /^(\w+)\/(\w+)/; |
|
if($data->{$_.':studentCount'}) { |
|
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$1,$2); |
} |
} |
push(@values, $data); |
|
} |
} |
untie(%cache); |
|
|
|
my $sendValues = join(',', @values); |
|
# my $sendCount = $#values; |
|
my $sendCount = scalar(@values); |
|
|
|
my $title = ''; |
|
if($graph eq 'DoDiffGraph') { |
|
$title = 'Degree-of-Difficulty'; |
|
} else { |
|
$title = 'Wrong-Percentage'; |
|
} |
|
my @GData = ($courseDescription, 'Problems', $title, $max, $sendCount, |
|
$sendValues); |
|
|
|
$r->print('</form>'."\n"); |
|
$r->print('<IMG src="/cgi-bin/graph.gif?'.(join('&', @GData)).'" border="1" />'); |
|
$r->print('<form>'."\n"); |
|
|
|
return; |
return; |
} |
} |
|
|
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#---- END Problem Statistics Web Page ---------------------------------------- |
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