version 1.8, 2002/07/30 23:08:56
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version 1.22, 2002/08/13 15:01:07
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Line 31
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Line 31
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# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei |
# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei |
# YEAR=2002 |
# YEAR=2002 |
# 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 |
# 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 |
# 5/12,5/14,5/15,5/19,5/26,7/16,7/25,7/29 Behrouz Minaei |
# 5/12,5/14,5/15,5/19,5/26,7/16,7/25,7/29,8/5 Behrouz Minaei |
# |
# |
### |
### |
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Line 43 use Apache::lonhtmlcommon;
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Line 43 use Apache::lonhtmlcommon;
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use Apache::loncoursedata; |
use Apache::loncoursedata; |
use GDBM_File; |
use GDBM_File; |
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my $jr; |
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sub BuildProblemStatisticsPage { |
sub BuildProblemStatisticsPage { |
my ($cacheDB, $students, $courseID, $c, $r)=@_; |
my ($cacheDB, $students, $courseID, $c, $r)=@_; |
my %cache; |
my %cache; |
#my %DoDiff; |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) { |
$jr = $r; |
return '<html><body>Unable to tie database.</body></html>'; |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
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$r->print('Unable to tie database.'); |
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return; |
} |
} |
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my $Ptr = ''; |
my $Ptr = ''; |
$Ptr .= '<table border="0"><tbody>'; |
$Ptr .= '<table border="0"><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, 'ProblemStatistics', |
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'Statistics'); |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= '</td></tr>'."\n"; |
$Ptr .= &AscendOrderOptions($cache{'Ascend'}); |
$Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n"; |
$Ptr .= &ProblemStatisticsButtons($cache{'DisplayFormat'}); |
$Ptr .= '<td align="left">'."\n"; |
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$Ptr .= &Apache::lonhtmlcommon::AscendOrderOptions( |
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$cache{'ProblemStatisticsAscend'}, |
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'ProblemStatistics', |
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'Statistics'); |
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$Ptr .= '</td></tr>'."\n"; |
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$Ptr .= &ProblemStatisticsButtons($cache{'DisplayFormat'}, |
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$cache{'DisplayLegend'}); |
$Ptr .= '</table>'; |
$Ptr .= '</table>'; |
$Ptr .= &ProblemStatisticsLegend(); |
if($cache{'DisplayLegend'} eq 'Show Legend') { |
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$Ptr .= &ProblemStatisticsLegend(); |
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} |
$r->print($Ptr); |
$r->print($Ptr); |
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$r->rflush(); |
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untie(%cache); |
my @Header = ("Homework Sets Order","#Stdnts","Tries","Mod", |
foreach (@$students) { |
"Mean","#YES","#yes","%Wrng","DoDiff", |
my $courseData = |
"S.D.","Skew.","D.F.1st","D.F.2nd","Disc."); |
&Apache::loncoursedata::DownloadCourseInformation($_, $courseID); |
my $color=&setbgcolor(0); |
last if ($c->aborted()); |
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if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) { |
# my %Discuss=&Apache::loncoursedata::LoadDiscussion($courseID); |
&Apache::loncoursedata::ProcessStudentData(\%cache, |
# my ($upper, $lower) = &Discriminant(\%discriminant,$r); |
$courseData, $_); |
if(!defined($cache{'StatisticsCached'})) { |
untie(%cache); |
untie(%cache); |
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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, $c); |
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if($c->aborted()) { return; } |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
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$r->print('Unable to tie database.'); |
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return; |
} |
} |
} |
my ($problemData) = &ExtractStudentData(\%cache, $students); |
if($c->aborted()) { return; } |
&CalculateStatistics($problemData); |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { |
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$r->print('Unable to tie database.'); |
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return; |
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} |
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foreach(keys(%$problemData)) { |
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$cache{$_} = $problemData->{$_}; |
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} |
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$cache{'StatisticsCached'} = 'true'; |
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untie(%cache); |
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unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) { |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
return '<html><body>Unable to tie database.</body></html>'; |
$r->print('Unable to tie database.'); |
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return; |
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} |
} |
} |
my %discriminant=(); |
my $orderedProblems = &SortProblems(\%cache, |
my @list=(); |
$cache{'ProblemStatisticsSort'}, |
my %Discuss=&Apache::loncoursedata::LoadDiscussion($courseID); |
$cache{'ProblemStatisticsAscend'}); |
my $index=0; |
&BuildStatisticsTable(\%cache, $cache{'DisplayFormat'}, $orderedProblems, |
foreach (@$students) { |
\@Header, $r, $color); |
$index++; |
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#&Apache::lonstatistics::Update_PrgWin(++$index,$r); |
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&ExtractStudentData(\%cache, $_, \@list,\%Discuss, $r, \%discriminant); |
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} |
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#&Apache::lonstatistics::Close_PrgWin($r); |
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my ($upper, $lower) = &Discriminant(\%discriminant,$r); |
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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 $color=&setbgcolor(0); |
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my %GraphDat= &BuildStatisticsTable(\%cache, $upper, $lower, \@list, |
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\%Header, $students, $r, $color); |
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untie(%cache); |
untie(%cache); |
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return; |
} |
} |
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#---- Problem Statistics Web Page --------------------------------------- |
#---- Problem Statistics Web Page --------------------------------------- |
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sub NumericSort { |
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$a <=> $b; |
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} |
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sub CreateProblemStatisticsTableHeading { |
sub CreateProblemStatisticsTableHeading { |
my ($displayFormat,$sequenceSource,$sequenceTitle,$headings,$r)=@_; |
my ($headings,$r)=@_; |
if($displayFormat eq 'Display CSV Format') { |
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$r->print('<br>"'.$sequenceTitle.'","'); |
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$r->print($sequenceSource.'"'); |
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return; |
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} |
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$r->print('<br><a href="'.$sequenceSource. |
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'" target="_blank">'.$sequenceTitle.'</a>'); |
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my $Result = "\n".'<table border=2><tr><th>P#</th>'."\n"; |
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for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) { |
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$Result .= '<th>'.'<input type="submit" name="'; |
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$Result .= 'ProblemStatisticsHeading" value="'; |
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$Result .= $headings->{$nIndex}.'" />'.'</th>'."\n"; |
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} |
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$Result .= "\n".'</tr>'."\n"; |
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$r->print($Result); |
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$r->rflush(); |
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} |
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sub CloseTable { |
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my ($cache,$r)=@_; |
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if($cache->{'DisplayFormat'} eq 'Display CSV Format') { |
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return; |
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} |
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$r->print("\n".'</table>'."\n"); |
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$r->rflush(); |
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} |
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# ------ Dump the Student's DB file and handling the data for statistics table |
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sub ExtractStudentData { |
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my ($cache,$name,$list,$Discuss,$r,$discriminant)=@_; |
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my $totalTries = 0; |
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my $totalAwarded = 0; |
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my $spent=0; |
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my $spent_yes=0; |
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my $TotDiscuss=0; |
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my $TotalOpend = 0; |
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my $ProbSolved = 0; |
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my $ProbTot = 0; |
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my $TotFirst = 0; |
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my $TimeTot = 0; |
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my $Discussed=0; |
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my $discrim=''; |
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my $tempSequenceOrder=100; |
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#$Apache::lonxml::debug=1; |
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#&Apache::lonhomework::showhash(%$cache); |
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#$Apache::lonxml::debug=0; |
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foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
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my $tempProblemOrder=100; |
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$tempSequenceOrder++; |
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# if($cache->{'ProblemStatisticsMap'} ne 'All Maps' && |
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# $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) { |
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# $r->print("<br>sequences=$cache->{'orderedSequences'}"); |
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# $r->print("<br>".$cache->{$sequence.':title'}); |
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# next; |
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# } |
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#$discrim .= '&'; |
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foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { |
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# $r->print("<br>problems=$cache->{$sequence.':problems'}"); |
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my $problem = $cache->{$problemID.':problem'}; |
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# $r->print("<br>$problemID === $problem"); |
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my $LatestVersion = $cache->{$name.':version:'.$problem}; |
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# Output dashes for all the parts of this problem if there |
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# is no version information about the current problem. |
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#if(!$LatestVersion) { |
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# foreach my $part (split(/\:/,$cache->{$sequence.':'. |
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# $problemID. |
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# ':parts'})) { |
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# $codes .= "-,"; |
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# $attempts .= "0,"; |
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# } |
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# next; |
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#} |
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my %partData=undef; |
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$partData{'count'}=0; |
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# Initialize part data, display skips correctly |
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# Skip refers to when a student made no submissions on that |
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# part/problem. |
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foreach my $part (split(/\:/,$cache->{$sequence.':'. |
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$problemID. |
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':parts'})) { |
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$tempProblemOrder++; |
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$partData{'count'}++; |
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# $r->print("<br>parts=$cache->{$sequence.':'.$problemID.':parts'}"); |
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$partData{$part.':order'}=$tempProblemOrder; |
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$partData{$part.':tries'}=0; |
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$partData{$part.':code'}='-'; |
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} |
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# Looping through all the versions of each part, starting with the |
my $Str=''; |
# oldest version. Basically, it gets the most recent |
$Str .= '<tr>'."\n"; |
# set of grade data for each part. |
$Str .= '<th bgcolor="#ffffe6">P#</th>'."\n"; |
for(my $Version=1; $Version<=$LatestVersion; $Version++) { |
foreach(@$headings) { |
foreach my $part (split(/\:/,$cache->{$sequence.':'. |
$Str .= '<th bgcolor="#ffffe6">'.'<a href="/adm/statistics?reportSelected='; |
$problemID. |
$Str .= &Apache::lonnet::escape('Problem Statistics'); |
':parts'})) { |
$Str .= '&ProblemStatisticsSort='; |
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$Str .= &Apache::lonnet::escape($_).'">'.$_.'</a> </th>'."\n"; |
if(!defined($cache->{$name.":$Version:$problem". |
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":resource.$part.solved"})) { |
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# No grade for this submission, so skip |
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next; |
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} |
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my $tries=0; |
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my $time=0; |
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my $awarded=0; |
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$Discussed=0; |
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my $code='-'; |
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$awarded = $cache->{"$name:$Version:$problem:resource.". |
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"$part.awarded"}; |
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$partData{$part.':awarded'} = ($awarded) ? $awarded : 0; |
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$totalAwarded += $awarded; |
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$tries = $cache->{"$name:$Version:$problem". |
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":resource.$part.tries"}; |
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$partData{$part.':tries'} = ($tries) ? $tries : 0; |
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$partData{$part.':wrong'} = $partData{$part.':tries'}; |
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$totalTries += $tries; |
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my $val = $cache->{$name.":$Version:$problem". |
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":resource.$part.solved"}; |
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if ($val eq 'correct_by_student') {$code = 'C';} |
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elsif ($val eq 'correct_by_override') {$code = 'O';} |
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elsif ($val eq 'incorrect_attempted') {$code = 'I';} |
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elsif ($val eq 'incorrect_by_override'){$code = 'I';} |
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elsif ($val eq 'excused') {$code = 'x';} |
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$partData{$part.':code'}=$code; |
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if($partData{$part.':wrong'} ne 0 && |
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($code eq 'C' || $code eq 'O')) { |
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$partData{$part.':wrong'}--; |
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} |
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} |
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} |
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#$Apache::lonxml::debug=1; |
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#&Apache::lonhomework::showhash(%partData); |
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#$Apache::lonxml::debug=0; |
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# Loop through all the parts for the current problem in the |
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# correct order and prepare the output |
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my $partCounter=0; |
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foreach (split(/\:/,$cache->{$sequence.':'.$problemID. |
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':parts'})) { |
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$partCounter++; |
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my $Yes = 0; |
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if($partData{$_.':code'} eq 'C' || |
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$partData{$_.':code'} eq 'O') { |
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$Yes=1; |
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} |
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my $pOrder=$partData{$_.':order'}; |
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my $ptr = $tempSequenceOrder.':'.$pOrder.':'.$problemID; |
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if($partData{'count'} > 1) { |
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$ptr .= "*(part $_)"; |
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} |
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#if($partCounter > 1) { |
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$discrim .= '&'; |
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#} |
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my ($pr_no,$dod)=split('&',$ptr); |
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# my $DoDiff=$DoDiff->{$dod}; |
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# $r->print('<br>'.$name.'---'.$ptr.'==='.$DoDiff); |
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my $Fac = ($partData{$_.':tries'}) ? |
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($partData{$_.':awarded'}/$partData{$_.':tries'}) : 0; |
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my $DisF; |
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if($Fac > 0 && $Fac < 1) { |
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$DisF = sprintf( "%.4f", $Fac ); |
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} else { |
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$DisF = $Fac; |
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} |
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if ($Discuss->{"$name:$problem"}) { |
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$TotDiscuss++; |
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$Discussed=1; |
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} |
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my $time = $cache->{"$name:$LatestVersion:$problem:timestamp"}; |
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$discrim .= $tempSequenceOrder.'@'.$pOrder.'='.$DisF.'+'.$Yes; |
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$ptr .= '&'.$partData{$_.':tries'}. |
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'&'.$partData{$_.':wrong'}. |
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'&'.$partData{$_.':code'}; |
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push (@$list, $ptr."&$Discussed"); |
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# $r->print('<br>'.$_.$name.'---'.$ptr); |
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#### if ($DoDiff>0.85) { |
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$TimeTot += $time; |
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if ($Yes==1 && $partData{$_.':tries'}==1) { |
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$TotFirst++; |
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} |
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# my $Acts= $Activity->{$name.':'.$problem}; |
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# if ($Acts) { |
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# my $Pt=&ProcAct( $Acts, $time ); |
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#my ($spe,$beg) = split(/\+/,$Pt); |
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# my $spe= $Pt; |
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# if ($Yes==1) {$spent_yes += $spe;} |
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# $spent += $spe; |
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#$Beg += $beg; |
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# $r->print('<br>'.$name.'---'.$problem.'---'.$spe); |
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# } |
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$TotalOpend++; |
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$ProbTot++; |
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$tempProblemOrder++; |
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} |
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} |
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} |
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my $pstr; |
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if($totalTries) { |
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my $DisFac = ($totalAwarded/$totalTries); |
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my $DisFactor = sprintf( "%.4f", $DisFac ); |
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my $TS = sprintf( "%.2f", $spent ); |
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my $TS_yes = sprintf( "%.2f", $spent_yes ); |
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$pstr=$DisFactor.':'.$name.':'.$ProbTot.':'.$TotalOpend.':'. |
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$totalTries.':'.$ProbSolved.':'.$TotFirst.':'. |
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$TS_yes.':'.$TS.':'.$TotDiscuss; |
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(%$discriminant)->{$pstr}=$discrim; |
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} |
} |
} |
$Str .= "\n".'</tr>'."\n"; |
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return $Str; |
=pod |
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sub MySort { |
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if ( $Pos > 0 ) { |
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if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;} |
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else { $a <=> $b; } |
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} |
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else { |
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if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;} |
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else { $a cmp $b; } |
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} |
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} |
} |
=cut |
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sub BuildStatisticsTable { |
sub BuildStatisticsTable { |
my ($cache,$upper,$lower,$list,$headings,$students,$r,$color)=@_; |
my ($cache,$displayFormat,$orderedProblems,$headings,$r,$color)=@_; |
my $NoElements = scalar @$list; |
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my @List=sort(@$list); |
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#6666666 |
#6666666 |
# my $file="/home/httpd/perl/tmp/183d.txt"; |
# my $file="/home/httpd/perl/tmp/183d.txt"; |
Line 375 sub BuildStatisticsTable {
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Line 167 sub BuildStatisticsTable {
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##777777 |
##777777 |
## $Str .= &Classify($discriminantFactor, $students); |
## $Str .= &Classify($discriminantFactor, $students); |
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my $p_count = 0; |
if($displayFormat ne 'Display CSV Format') { |
my $dummy; |
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n"); |
my $p_val; |
$r->print('<table border="0" cellpadding="3">'."\n"); |
my $ResId; |
$r->print(&CreateProblemStatisticsTableHeading($headings, $r)); |
my %GraphDat; |
} else { |
my $cIdx=0; |
$r->print('<br>'); |
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} |
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foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
my $count = 1; |
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foreach(@$orderedProblems) { |
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my ($sequence,$problem,$part)=split(':', $_); |
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# if($cache->{'ProblemStatisticsMaps'} ne 'All Maps' && |
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# $cache->{'ProblemStatisticsMaps'} ne $cache->{$sequence.':title'}) { |
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# next; |
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# } |
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&CreateProblemStatisticsTableHeading(1,$cache->{$sequence.':source'}, |
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$cache->{$sequence.':title'}, |
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$headings,$r); |
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my ($tar,$Tries,$Wrongs,$Code,$Disc)=split(/\&/, |
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$List[$cIdx]); |
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my ($SqOrd,$PrOrd,$Prob)=split(/\:/,$tar); |
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$sequence+=100; |
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while ($SqOrd==$sequence && $cIdx<$NoElements) { |
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my %storestats=(); |
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my $pOrd=$PrOrd; |
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my $Temp = $Prob; |
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my $MxTries = 0; |
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my $TotalTries = 0; |
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my $YES = 0; |
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my $Incorrect = 0; |
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my $Override = 0; |
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my $StdNo = 0; |
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my $DiscNo=0; |
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my @StdLst; |
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while ($pOrd==$PrOrd && $cIdx<$NoElements) |
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{ |
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$cIdx++; |
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$StdNo++; |
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$StdLst[ $StdNo ] = $Tries; |
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$TotalTries += $Tries; |
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if ( $MxTries < $Tries ) { $MxTries = $Tries; } |
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if ( $Code eq 'C' ){ $YES++; } |
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elsif( $Code eq 'I' ) { $Incorrect++; } |
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elsif( $Code eq 'O' ) { $Override++; } |
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elsif( $Code eq '-' ) { $StdNo--; } |
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($tar,$Tries,$Wrongs,$Code,$Disc)=split(/\&/, |
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$List[$cIdx]); |
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($SqOrd,$PrOrd,$Prob)=split(/\:/,$tar); |
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} |
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$p_count++; |
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my $Dummy; |
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($ResId,$Dummy)=split(/\*/,$Temp); |
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###################### |
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$Temp = '<a href="'.$cache->{$ResId.':source'}. |
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'" target="_blank">'.$cache->{$ResId.':title'}.$Dummy.'</a>'; |
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#$r->print('<br>rid='.$ResId); |
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#$r->print('<br>src='.$cache->{$ResId.':source'}); |
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#$r->print('<br>tit='.$cache->{$ResId.':title'}); |
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my $res = &Apache::lonnet::declutter($cache->{$ResId.':source'}); |
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my $urlres=$res; |
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$ResId=~/(\d+)\.(\d+)/; |
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my $Map = &Apache::lonnet::declutter( $cache->{'map_id_'.$1} ); |
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$urlres=$Map; |
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####################### |
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# $res = '<a href="'.$cache->{'src_'.$ResId}.'">'.$res.'</a>'; |
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#$Map = '<a href="'.$Map.'">'.$res.'</a>'; |
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#------------------------ Compute the Average of Tries about one problem |
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my $Average = ($StdNo) ? $TotalTries/$StdNo : 0; |
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$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___timestamp'}=time; |
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$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___stdno'}=$StdNo; |
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$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___avetries'}=$Average; |
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#-------------------------------- Compute percentage of Wrong tries |
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my $Wrong = ( $StdNo ) ? 100 * ( $Incorrect / $StdNo ) : 0; |
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#-------------------------------- Compute Standard Deviation |
my $ref = '<a href="'.$cache->{$problem.':source'}. |
my $StdDev = 0; |
'" target="_blank">'.$cache->{$problem.':title'}.'</a>'; |
if ( $StdNo > 1 ) { |
# my $ref = $cache->{$problem.':title'}; |
for ( my $n = 0; $n < $StdNo; $n++ ) { |
my $title = $cache->{$problem.':title'}; |
my $Dif = $StdLst[ $n ]-$Average; |
my $source = 'source'; |
$StdDev += $Dif*$Dif; |
my $tableData = join('&', $ref, $title, $source, |
} |
$cache->{$_.':studentCount'}, |
$StdDev /= ( $StdNo - 1 ); |
$cache->{$_.':totalTries'}, |
$StdDev = sqrt( $StdDev ); |
$cache->{$_.':maxTries'}, |
} |
sprintf("%.2f", $cache->{$_.':mean'}), |
|
$cache->{$_.':correct'}, |
#-------------------------------- Compute Degree of Difficulty |
$cache->{$_.':correctByOverride'}, |
my $DoDiff = 0; |
sprintf("%.1f", $cache->{$_.':percentWrong'}), |
if( $TotalTries > 0 ) { |
sprintf("%.2f", $cache->{$_.':degreeOfDifficulty'}), |
$DoDiff = 1 - ( ( $YES + $Override ) / $TotalTries ); |
sprintf("%.1f", $cache->{$_.':standardDeviation'}), |
# $DoDiff = ($TotalTries)/($YES + $Override+ 0.1); |
sprintf("%.1f", $cache->{$_.':skewness'}), |
} |
sprintf("%.2f", $cache->{$_.':discriminationFactor1'}), |
|
sprintf("%.2f", $cache->{$_.':discriminationFactor2'}), |
$storestats{$ENV{'request.course.id'}.'___'.$urlres.'___difficulty'}=$DoDiff; |
0); # 0 is for discussion, need to figure out |
|
|
#-------------------------------- 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*$StdDev; |
|
} |
|
|
|
#--------------------- Compute the Discrimination Factors |
|
my ($Up1,$Up2)=split(/\:/,$upper->{$sequence.'@'.$pOrd}); |
|
my ($Lw1,$Lw2)=split(/\:/,$lower->{$sequence.'@'.$pOrd}); |
|
|
|
my $Dis1 = $Up1 - $Lw1; |
|
my $Dis2 = $Up2 - $Lw2; |
|
my $_D1 = sprintf("%.2f", $Dis1); |
|
my $_D2 = sprintf("%.2f", $Dis2); |
|
|
|
#----------------- Some restition in presenting the float numbers |
|
my $Avg = sprintf( "%.2f", $Average ); |
|
my $Wrng = sprintf( "%.1f", $Wrong ); |
|
my $SD = sprintf( "%.1f", $StdDev ); |
|
my $DoD = sprintf( "%.2f", $DoDiff ); |
|
my $Sk = sprintf( "%.1f", $Skewness ); |
|
my $join = $Prob.'&'.$Temp.'&'.$StdNo.'&'. |
|
$TotalTries.'&'.$MxTries.'&'.$Avg.'&'. |
|
$YES.'&'.$Override.'&'.$Wrng.'&'.$DoD.'&'. |
|
$SD.'&'.$Sk.'&'.$_D1.'&'.$_D2.'&'. |
|
$DiscNo.'&'.$Prob; |
|
##8888 $CachData{($p_count-1)}=$join; |
|
|
|
#6666666 |
#6666666 |
# $r->print('<br>'.$out.'&'.$DoD); |
# $r->print('<br>'.$out.'&'.$DoD); |
# print (OUT $out.'@'.$DoD.'&'); |
# print (OUT $out.'@'.$DoD.'&'); |
#6666666 |
#6666666 |
|
|
$urlres=~/^(\w+)\/(\w+)/; |
#check with Gerd |
if ($StdNo) { |
# $urlres=~/^(\w+)\/(\w+)/; |
&Apache::lonnet::put('resevaldata',\%storestats,$1,$2); |
# if ($StdNo) { |
} |
# &Apache::lonnet::put('nohist_resevaldata',\%storestats, |
|
# $1,$2); |
|
# } |
#-------------------------------- Row of statistical table |
#-------------------------------- Row of statistical table |
&TableRow($cache,$join,$cIdx,($p_count-1),$r,$color,\%GraphDat); |
&TableRow($displayFormat,$tableData,$count,$r,$color); |
} |
$count++; |
&CloseTable($cache,$r); |
|
} |
} |
### &Close_PrgWin(); |
if($cache->{'DisplayFormat'} ne 'Display CSV Format') { |
#666666 |
$r->print('</table>'."\n"); |
|
} |
|
$r->print('</td></tr></table>'); |
|
#6666666 |
# close( OUT ); |
# close( OUT ); |
#666666 |
#666666 |
|
return; |
} |
} |
|
|
=pod |
|
sub Cache_Statistics { |
|
my ($cache,$color)=@_; |
|
my @list = (); |
|
my $Useful; |
|
my $UnUseful; |
|
# $r->print('<input type="hidden" name="show" value="excel" />'."\n"); |
|
my %myHeader = reverse( %Header ); |
|
$Pos = $myHeader{$ENV{'form.sort'}}; |
|
if ($Pos > 0) {$Pos++;} |
|
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); |
|
} |
|
} |
|
else { |
|
&CreateProblemStatisticsTableHeading($cache,0); |
|
for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) { |
|
my($Pre, $Post) = split(/\@/,$list[$nIndex]); |
|
&TableRow($cache,$Post,$nIndex,$nIndex,$color,\%GraphDat); |
|
} |
|
&CloseTable($cache); |
|
} |
|
} |
|
=cut |
|
|
|
sub TableRow { |
sub TableRow { |
my ($cache,$Str,$Idx,$RealIdx,$r,$color,$GraphDat)=@_; |
my ($displayFormat,$Str,$RealIdx,$r,$color)=@_; |
my($PrOrd,$Temp,$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,$DiscNo,$Prob)=split(/\&/,$Str); |
# $r->print('<br>'.$Str); |
|
my $Ptr; |
my $Ptr; |
if ($ENV{'form.showcsv'}) { |
if($displayFormat eq 'Display CSV Format') { |
my ($ResId,$Dummy)=split(/\*/,$Prob); |
|
$Ptr="\n".'<br>'. |
$Ptr="\n".'<br>'. |
"\n".'"'.($RealIdx+1).'",'. |
"\n".'"'.$RealIdx.'",'. |
"\n".'"'.$cache->{'title_'.$ResId}.$Dummy.'",'. |
"\n".'"'.$title.'",'. |
"\n".'"'.$cache->{'src_'.$ResId}.'",'. |
"\n".'"'.$source.'",'. |
"\n".'"'.$StdNo.'",'. |
"\n".'"'.$StdNo.'",'. |
"\n".'"'.$TotalTries.'",'. |
"\n".'"'.$TotalTries.'",'. |
"\n".'"'.$MxTries.'",'. |
"\n".'"'.$MxTries.'",'. |
Line 607 sub TableRow {
|
Line 256 sub TableRow {
|
$r->print("\n".$Ptr); |
$r->print("\n".$Ptr); |
} else { |
} else { |
$Ptr="\n".'<tr>'. |
$Ptr="\n".'<tr>'. |
"\n".'<td>'.($RealIdx+1).'</td>'. |
"\n".'<td bgcolor="#ffffe6">'.$RealIdx.'</td>'. |
# "\n".'<td>'.$PrOrd.$Temp.'</td>'. |
"\n".'<td bgcolor="#ffffe6">'.$ref.'</td>'. |
"\n".'<td>'.$Temp.'</td>'. |
|
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'. |
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$StdNo.'</td>'. |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'. |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$TotalTries.'</td>'. |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'. |
"\n".'<td bgcolor='.$color->{"yellow"}.'>'.$MxTries.'</td>'. |
Line 625 sub TableRow {
|
Line 273 sub TableRow {
|
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$DiscNo.'</td>'; |
"\n".'<td bgcolor='.$color->{"yellow"}.'> '.$DiscNo.'</td>'; |
$r->print("\n".$Ptr.'</tr>' ); |
$r->print("\n".$Ptr.'</tr>' ); |
} |
} |
# $GraphDat->{$RealIdx}=$DoD.':'.$Wrng; |
|
} |
|
|
|
|
return; |
|
} |
|
|
# For loading the colored table for display or un-colored for print |
# For loading the colored table for display or un-colored for print |
sub setbgcolor { |
sub setbgcolor { |
Line 650 sub setbgcolor {
|
Line 298 sub setbgcolor {
|
return \%color; |
return \%color; |
} |
} |
|
|
|
|
sub StatusOptions { |
|
my ($cache)=@_; |
|
|
|
my $Status = $cache->{'Status'}; |
|
my $OpSel1 = ''; |
|
my $OpSel2 = ''; |
|
my $OpSel3 = ''; |
|
|
|
if($Status eq 'Any') { $OpSel3 = ' selected'; } |
|
elsif($Status eq 'Expired' ) { $OpSel2 = ' selected'; } |
|
else { $OpSel1 = ' selected'; } |
|
|
|
my $Ptr = ''; |
|
$Ptr .= '<tr><td align="right"><b>Student Status:</b></td>'."\n"; |
|
$Ptr .= '<td align="left"><select name="Status">'; |
|
$Ptr .= '<option'.$OpSel1.'>Active</option>'."\n"; |
|
$Ptr .= '<option'.$OpSel2.'>Expired</option>'."\n"; |
|
$Ptr .= '<option'.$OpSel3.'>Any</option>'."\n"; |
|
$Ptr .= '</select></td></tr>'."\n"; |
|
|
|
return $Ptr; |
|
} |
|
|
|
sub AscendOrderOptions { |
|
my ($order)=@_; |
|
|
|
my $OpSel1 = ''; |
|
my $OpSel2 = ''; |
|
|
|
if($order eq 'Ascending') { |
|
$OpSel1 = ' selected'; |
|
} else { |
|
$OpSel2 = ' selected'; |
|
} |
|
|
|
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)=@_; |
|
|
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="DoDiff Graph" />'."\n"; |
$Ptr .= ' '; |
$Ptr .= ' '; |
$Ptr .= '<input type="submit" name="PercentWrongGraph" '; |
$Ptr .= '<input type="submit" name="PercentWrongGraph" '; |
$Ptr .= 'value="%Wrong Graph" />'."\n"; |
$Ptr .= 'value="%Wrong Graph" />'."\n"; |
|
$Ptr .= '</td></tr><tr><td></td><td>'."\n"; |
|
$Ptr .= '<input type="submit" name="DisplayLegend" '; |
|
if($displayLegend eq 'Show Legend') { |
|
$Ptr .= 'value="Hide Legend" />'."\n"; |
|
} else { |
|
$Ptr .= 'value="Show Legend" />'."\n"; |
|
} |
$Ptr .= ' '; |
$Ptr .= ' '; |
$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>'; |
|
|
Line 725 sub ProblemStatisticsLegend {
|
Line 331 sub ProblemStatisticsLegend {
|
$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.'; |
Line 742 sub ProblemStatisticsLegend {
|
Line 348 sub ProblemStatisticsLegend {
|
$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. '; |
$Ptr .= '<td>Degree of Difficulty of the problem. '; |
Line 777 sub ProblemStatisticsLegend {
|
Line 383 sub ProblemStatisticsLegend {
|
} |
} |
|
|
#------- Processing upperlist and lowerlist according to each problem |
#------- Processing upperlist and lowerlist according to each problem |
|
|
|
sub ExtractStudentData { |
|
my ($cache, $students)=@_; |
|
|
|
#$Apache::lonxml::debug=1; |
|
#&Apache::lonhomework::showhash(%$cache); |
|
#$Apache::lonxml::debug=0; |
|
|
|
my @problemList=(); |
|
my %problemData; |
|
foreach my $sequence (split(':', $cache->{'orderedSequences'})) { |
|
foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { |
|
foreach my $part (split(/\:/,$cache->{$sequence.':'. |
|
$problemID. |
|
':parts'})) { |
|
my $id = $sequence.':'.$problemID.':'.$part; |
|
push(@problemList, $id); |
|
my $totalTries = 0; |
|
my $totalAwarded = 0; |
|
my $correct = 0; |
|
my $correctByOverride = 0; |
|
my $studentCount = 0; |
|
my $maxTries = 0; |
|
my $totalFirst = 0; |
|
my @studentTries=(); |
|
foreach(@$students) { |
|
my $code = $cache->{"$_:$problemID:$part:code"}; |
|
|
|
if(defined($cache->{$_.':error'}) || $code eq ' ' || |
|
$cache->{"$_:$problemID:NoVersion"} eq 'true') { |
|
next; |
|
} |
|
|
|
$studentCount++; |
|
my $tries = $cache->{"$_:$problemID:$part:tries"}; |
|
if($maxTries < $tries) { |
|
$maxTries = $tries; |
|
} |
|
$totalTries += $tries; |
|
push(@studentTries, $tries); |
|
|
|
my $awarded = $cache->{"$_:$problemID:$part:awarded"}; |
|
$totalAwarded += $awarded; |
|
|
|
if($code eq '*') { |
|
$correct++; |
|
if($tries == 1) { |
|
$totalFirst++; |
|
} |
|
} elsif($code eq '+') { |
|
$correctByOverride++; |
|
} |
|
} |
|
|
|
$problemData{$id.':sequenceTitle'} = |
|
$cache->{$sequence.':title'}; |
|
$problemData{$id.':studentCount'} = $studentCount; |
|
$problemData{$id.':totalTries'} = $totalTries; |
|
$problemData{$id.':studentTries'} = \@studentTries; |
|
$problemData{$id.':totalAwarded'} = $totalAwarded; |
|
$problemData{$id.':correct'} = $correct; |
|
$problemData{$id.':correctByOverride'} = $correctByOverride; |
|
$problemData{$id.':wrong'} = $studentCount - |
|
($correct + $correctByOverride); |
|
$problemData{$id.':maxTries'} = $maxTries; |
|
$problemData{$id.':totalFirst'} = $totalFirst; |
|
} |
|
} |
|
} |
|
|
|
$problemData{'problemList'} = join(':::', @problemList); |
|
# $Discussed=0; |
|
# if($Discuss->{"$name:$problem"}) { |
|
# $TotDiscuss++; |
|
# $Discussed=1; |
|
# } |
|
|
|
return \%problemData; |
|
} |
|
|
|
sub SortProblems { |
|
my ($problemData,$sortBy,$ascend)=@_; |
|
|
|
my @problems = split(':::', $problemData->{'problemList'}); |
|
if($sortBy eq "Homework Sets Order") { |
|
return \@problems; |
|
} |
|
|
|
my $data; |
|
|
|
if ($sortBy eq "#Stdnts") { $data = ':studentCount'; } |
|
elsif($sortBy eq "Tries") { $data = ':totalTries'; } |
|
elsif($sortBy eq "Mod") { $data = ':maxTries'; } |
|
elsif($sortBy eq "Mean") { $data = ':mean'; } |
|
elsif($sortBy eq "#YES") { $data = ':correct'; } |
|
elsif($sortBy eq "#yes") { $data = ':correctByOverride'; } |
|
elsif($sortBy eq "%Wrng") { $data = ':percentWrong'; } |
|
elsif($sortBy eq "DoDiff") { $data = ':degreeOfDifficulty'; } |
|
elsif($sortBy eq "S.D.") { $data = ':standardDeviation'; } |
|
elsif($sortBy eq "Skew.") { $data = ':skewness'; } |
|
elsif($sortBy eq "D.F.1st") { $data = ':discriminantFactor1'; } |
|
elsif($sortBy eq "D.F.2nd") { $data = ':discriminantFactor2'; } |
|
elsif($sortBy eq "Disc.") { $data = ''; } |
|
else { return \@problems; } |
|
|
|
my @orderedProblems = |
|
sort { $problemData->{$a.$data} <=> $problemData->{$b.$data} } |
|
@problems; |
|
if($ascend eq 'Descending') { |
|
@orderedProblems = reverse(@orderedProblems); |
|
} |
|
|
|
return \@orderedProblems; |
|
} |
|
|
|
sub CalculateStatistics { |
|
my ($data)=@_; |
|
|
|
my @problems = split(':::', $data->{'problemList'}); |
|
foreach(@problems) { |
|
# Mean |
|
$data->{$_.':mean'} = ($data->{$_.':studentCount'}) ? |
|
($data->{$_.':totalTries'} / $data->{$_.':studentCount'}) : 0; |
|
|
|
# %Wrong |
|
$data->{$_.':percentWrong'} = ($data->{$_.':studentCount'}) ? |
|
(($data->{$_.':wrong'} / $data->{$_.':studentCount'}) * 100.0) : |
|
100.0; |
|
|
|
# Degree of Difficulty |
|
$data->{$_.':degreeOfDifficulty'} = ($data->{$_.':totalTries'}) ? |
|
(1 - (($data->{$_.':correct'} + $data->{$_.':correctByOverride'}) / |
|
$data->{$_.':totalTries'})) : 0; |
|
|
|
# Factor in mean |
|
my $studentTries = $data->{$_.':studentTries'}; |
|
foreach(my $index=0; $index < scalar(@$studentTries); $index++) { |
|
$studentTries->[$index] -= $data->{$_.':mean'}; |
|
} |
|
my $sumSquared = 0; |
|
my $sumCubed = 0; |
|
foreach(@$studentTries) { |
|
my $squared = ($_ * $_); |
|
my $cubed = ($squared * $_); |
|
$sumSquared += $squared; |
|
$sumCubed += $cubed; |
|
} |
|
|
|
# Standard deviation |
|
$data->{$_.':standardDeviation'} = ($data->{$_.':studentCount'} - 1) ? |
|
((sqrt($sumSquared)) / ($data->{$_.':studentCount'} - 1)) : 0; |
|
|
|
# Skewness |
|
my $standardDeviation = $data->{$_.':standardDeviation'}; |
|
$data->{$_.':skewness'} = ($data->{$_.':standardDeviation'}) ? |
|
(((sqrt($sumSquared)) / $data->{$_.':studentCount'}) / |
|
($standardDeviation * $standardDeviation * $standardDeviation)) : |
|
0; |
|
|
|
# Discrimination Factor 1 |
|
$data->{$_.':discriminationFactor1'} = 0; |
|
|
|
# Discrimination Factor 2 |
|
$data->{$_.':discriminationFactor2'} = 0; |
|
} |
|
|
|
return; |
|
} |
|
|
sub ProcessDiscriminant { |
sub ProcessDiscriminant { |
my ($List,$r) = @_; |
my ($List) = @_; |
my @sortedList = sort (@$List); |
my @sortedList = sort (@$List); |
my $Count = scalar @sortedList; |
my $Count = scalar @sortedList; |
my $Problem; |
my $Problem; |
Line 791 sub ProcessDiscriminant {
|
Line 566 sub ProcessDiscriminant {
|
my $nStudent=0; |
my $nStudent=0; |
my %Proc=undef; |
my %Proc=undef; |
while ($nIndex<$Count) { |
while ($nIndex<$Count) { |
# $r->print("<br> $nIndex) $sortedList[$nIndex]"); |
# $jr->print("<br> $nIndex) $sortedList[$nIndex]"); |
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]); |
@Dis=split(/\+/,$tmp); |
@Dis=split(/\+/,$tmp); |
my $Temp = $Problem; |
my $Temp = $Problem; |
Line 804 sub ProcessDiscriminant {
|
Line 579 sub ProcessDiscriminant {
|
@Dis=split(/\+/,$tmp); |
@Dis=split(/\+/,$tmp); |
} while ( $Problem eq $Temp && $nIndex < $Count ); |
} while ( $Problem eq $Temp && $nIndex < $Count ); |
$Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent); |
$Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent); |
# $r->print("<br> $nIndex) $Temp --> ($nStudent) $Proc{$Temp}"); |
# $jr->print("<br> $nIndex) $Temp --> ($nStudent) $Proc{$Temp}"); |
$Sum1=0; |
$Sum1=0; |
$Sum2=0; |
$Sum2=0; |
$nStudent=0; |
$nStudent=0; |
Line 815 sub ProcessDiscriminant {
|
Line 590 sub ProcessDiscriminant {
|
|
|
#------- Creating Discimination factor |
#------- Creating Discimination factor |
sub Discriminant { |
sub Discriminant { |
my ($discriminant,$r)=@_; |
my ($discriminant)=@_; |
#$Apache::lonxml::debug=1; |
|
#&Apache::lonhomework::showhash(%$discriminant); |
|
#$Apache::lonxml::debug=0; |
|
my @discriminantKeys=keys(%$discriminant); |
my @discriminantKeys=keys(%$discriminant); |
my $Count = scalar @discriminantKeys; |
my $Count = scalar @discriminantKeys; |
|
|
Line 842 sub Discriminant {
|
Line 614 sub Discriminant {
|
} |
} |
} |
} |
} |
} |
my %DisUp = &ProcessDiscriminant(\@UpList,$r); |
my %DisUp = &ProcessDiscriminant(\@UpList); |
my %DisLow = &ProcessDiscriminant(\@LowList,$r); |
my %DisLow = &ProcessDiscriminant(\@LowList); |
|
|
return (\%DisUp, \%DisLow); |
return (\%DisUp, \%DisLow); |
} |
} |
Line 854 sub Discriminant {
|
Line 626 sub Discriminant {
|
|
|
# ------------------------------------------- Prepare data for Graphical chart |
# ------------------------------------------- Prepare data for Graphical chart |
|
|
sub BuildDiffGraph { |
sub BuildGraphicChart { |
my ($r)=@_; |
my ($graph,$cacheDB,$courseDescription,$r)=@_; |
|
my %cache; |
|
my $max = 0; |
|
|
my $graphData = &GetGraphData('DiffGraph', $r); |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
return '<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />'; |
return '<html><body>Unable to tie database.</body></html>'; |
} |
} |
|
|
|
my @problems = split(':::', $cache{'problemList'}); |
|
my @values = (); |
|
foreach (@problems) { |
|
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); |
|
} |
|
untie(%cache); |
|
|
sub BuildWrongGraph { |
my $sendValues = join(',', @values); |
my ($r)=@_; |
# my $sendCount = $#values; |
|
my $sendCount = scalar(@values); |
my $graphData = &GetGraphData('WrongGraph', $r); |
|
return '<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />'; |
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" />'); |
|
$r->print('<form>'."\n"); |
|
|
sub GetGraphData { |
return; |
my ($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__ |