$Count) $date: $who --> $res"); - if ($post) { - $Count++; - $r->print("
$Count) Sent data ".join(':', - &Apache::lonnet::unescape(@posts)).''); - } - $r->rflush(); - # } - ## push (@allaccess,unescape($access)); - #print $machine; - } - } -# @allaccess=sort(@allaccess); -# $Count=0; -# foreach my $access (@allaccess) { -# my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); -# $Count++; -# $r->print("
$Count) $date: $who --> $resource"); -# $r->rflush(); -# if ($post) { -# $r->print("
Sent data ".join(':',unescape(@posts)).''); -# } -# } -} - - - -sub InitAnalysis { - my ($rid, $student)=@_; - my ($uname,$udom)=split(/\:/,$student); - $rid=~/(\d+)\.(\d+)/; - my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'. - &Apache::lonnet::declutter($hash{'src_'.$rid}); - my $URI = $hash{'src_'.$rid}; - my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze', - 'grade_username' => $uname, - 'grade_domain' => $udom, - 'grade_courseid' => $cid, - 'grade_symb' => $symb)); -# my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze')); - - (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2); - %Answer=(); - %Answer=&Apache::lonnet::str2hash($Answ); - - my $parts=''; - foreach my $elm (@{$Answer{"parts"}}) { - $parts.="$elm,"; - } - chop($parts); - my $conc=''; - foreach my $elm (@{$Answer{"$parts.concepts"}}) { - $conc.="$elm@"; - } - chop($conc); - - @Concepts=split(/\@/,$conc); - foreach my $concept (@{$Answer{"$parts.concepts"}}) { - foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) { - $foil_to_concept{$foil} = $concept; - #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"}; - } - } - return $symb; -} - - -sub Interval { - my ($rid,$part,$symb)=@_; - my $Int=$ConceptData{"Interval"}; - my $due = &Apache::lonnet::EXT('resource.$part.duedate',$symb)+1; - my $opn = &Apache::lonnet::EXT('resource.$part.opendate',$symb); - my $add=int(($due-$opn)/$Int); - $ConceptData{"Int.0"}=$opn; - for (my $i=1;$i<$Int;$i++) { - $ConceptData{"Int.$i"}=$opn+$i*$add; - } - $ConceptData{"Int.$Int"}=$due; - for (my $i=0;$i<$Int;$i++) { - for (my $n=0; $n<=$#Concepts; $n++ ) { - my $tmp=$Concepts[$n]; - $ConceptData{"$tmp.$i.true"}=0; - $ConceptData{"$tmp.$i.false"}=0; - } - } -} - - -sub ShowOpGraph { - my ($InpStr, $Int_No)=@_; - my ($rid,$part)=split(/\:/,substr($InpStr,8)); - $ConceptData{"Interval"}=$Int_No; - #Initialize the option response true answers - my $symb=&InitAnalysis($rid,$students[0]); - #compute the intervals - &Interval($rid,$part,$symb); - my $URI = $hash{'src_'.$rid}; - my $Src = $hash{'title_'.$rid}; - $Src =~ s/\ /"_"/eg; - $r->print('
'.$URI.''); - $r->rflush(); - - #Java script Progress window - &Create_PrgWin(); - &Update_PrgWin("Starting to analyze problem"); - for (my $index=0;$index<=$#students;$index++) { - &Update_PrgWin($index); - &OpStatus($rid,$students[$index]); - } - &Close_PrgWin(); - - $r->print('
'); - for (my $k=0; $k<$Int_No; $k++ ) { - &DrawGraph($k,$Src); - } - for (my $k=0; $k<$Int_No; $k++ ) { - &DrawTable($k); - } -#$Apache::lonxml::debug=1; -#&Apache::lonhomework::showhash(%ConceptData); -#$Apache::lonxml::debug=0; - my $Answ=&Apache::lonnet::ssi($URI); - $r->print("
Here you can see the Problem:
$Answ"); -} - - -sub DrawTable { - my $k=shift; - my $Max=0; - my @data1; - my @data2; - my $Correct=0; - my $Wrong=0; - for (my $n=0; $n<=$#Concepts; $n++ ) { - my $tmp=$Concepts[$n]; - $data1[$n]=$ConceptData{"$tmp.$k.true"}; - $Correct+=$data1[$n]; - $data2[$n]=$ConceptData{"$tmp.$k.false"}; - $Wrong+=$data2[$n]; - my $Sum=$data1[$n]+$data2[$n]; - if ( $Max<$Sum ) {$Max=$Sum;} - } - for (my $n=0; $n<=$#Concepts; $n++ ) { - if ($data1[$n]+$data2[$n]<$Max) { - $data2[$n]+=$Max-($data1[$n]+$data2[$n]); - } - } - my $P_No = $#data1+1; -# $r->print('
From: ['.localtime($ConceptData{'Int.'.($k-1)}). -# '] To: ['.localtime($ConceptData{"Int.$k"}).']'); - my $Str = "\n".'
| # | '. - "\n".'Concept | '. - "\n".'Correct | '. - "\n".'Wrong | '. - "\n".'
|---|---|---|---|
| ".($n+1)." | ". - "\n".''.$Concepts[$n]." | ". - "\n".''.$data1[$n]." | ". - "\n".''.$data2[$n]." | ". - "\n"."From:['.localtime($ConceptData{'Int.'.$k}). - '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1). - "] | $Correct | $Wrong | "; - $Str .= "\n".'
');
-}
-
-
-sub AnalyzeProblem {
- # selecting the number of intervals
- my $OpSel='';
- my $CurInt = $ENV{'form.interval'};
- if ($CurInt eq '') {$CurMap = '1';}
- my $Ptr = 'Select number of intervals'."\n". - ''."\n"; - $r->print( $Ptr ); - - #the table of option response problems - $r->print('
Option Response Problems in this course:
'); - my $Str = "\n".'
| # | '. - "\n".'Problem Title | '. - "\n".'Resource | '. - "\n".'Address | '. - "\n".'
|---|---|---|---|
| $P_No | ". - "\n"."".$Temp." | ". - "\n"."".$hash{'src_'.$rid}." | ". - "\n"."".''.' | '. - "\n"."
"); - $Sum1=0; - $Sum2=0; - $nStud=0; - } - return %Proc; -} - - -#------- Creating Discimination factor -sub Discriminant { - my $Count=0; - foreach (keys(%DiscFac)){ - $Count++; - } - $UpCnt = int(0.27*$Count); - my $low=0; - my $up=$Count-$UpCnt; - my @UpList=(); - my @LowList=(); - $Count=0; - foreach my $key (sort(keys(%DiscFac))){ - $Count++; - #$r->print("
$Count) $key = $DiscFac{$key}"); - if ($low < $UpCnt || $Count > $up) { - $low++; - my $str=$DiscFac{$key}; - foreach(split(/\:/,$str)){ - if ($_) { - if ($low<$UpCnt){push(@LowList,$_);} - else {push(@UpList,$_);} - } - } - } - } - %DisUp=&ProcessDisc(@UpList); - %DisLow=&ProcessDisc(@LowList); -} - - -sub NumericSort { - $a <=> $b; -} - -# ------ Create different Student Report -sub StudentReport { - my ($sname,$sdom)=@_; - if ( $sname eq 'All Students' ) { - $r->print( '
WARNING: - Please select a student
' ); - return; - } - my %result = &Apache::lonnet::dump($cid,$sdom,$sname); - my $ResId; - my $PrOrd; - my $Code; - my $Tries; - my $TotalTries = 0; - my $ParCr = 0; - my $Wrongs; - my %TempHash; - my $Version; - my $LatestVersion; - my $PtrTry=''; - my $PtrCod=''; - my $SetNo=0; - my $Str = "\n".'| # | '. - "\n".'Set Title | '. - "\n".'Results | '. - "\n".'Tries | '. - "\n".'
|---|---|---|---|
| $SetNo | ". - "\n"."$Set | ". - "\n"."$PtrCod | ". - "\n"."$PtrTry | ". - "\n"."
"'.$hash{'title_'.$Hid}.'","'.$hash{'src_'.$Hid}.'"'); - } - return; - } - my $ColNo=0; - foreach (keys(%Header)){ - $ColNo++; - } - if ( $Hd == 1 ) { - $r->print('
'.$hash{'title_'.$Hid}.''); - } - my $Result = "\n".'
| P# | '."\n"; - for ( my $nIdx=0; $nIdx < $ColNo; $nIdx++ ) { - $Result .= ''.''.' | '."\n"; +############################################## +############################################## + +=pod + +=item &StudentDataSelect($elementname,$status,$numvisible,$selected) + +Returns html for a selection box allowing the user to choose one (or more) +of the fields of student data available (fullname, username, id, section, etc) + +=over 4 + +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=back + +=cut + +############################################## +############################################## +sub StudentDataSelect { + my ($elementname,$status,$numvisible)=@_; + if ($numvisible < 1) { + return; } - $Result .= "\n".'
|---|
Student Status: '."\n". - ' '."\n"; - $Ptr .= ' '; - $Ptr .= ''."\n"; - - $Ptr .= '
Sorting Type: '."\n". - ' '."\n"; - $Ptr .= ' '; - $Ptr .= ''."\n"; - $Ptr .= ' '; - $Ptr .= ''."\n"; - - $Ptr .= '
'. - ' #Stdnts: Total Number of Students opened the problem.'; - - $r->print($Ptr); - - $r->print('Output CSV format: print(' checked'); } - $r->print('>'); - - $r->rflush(); - - if ((-e "$CacheDB")&&($ENV{'form.sort'} ne 'Recalculate Statistics')) { - if (tie(%CachData,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) { - tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640); - &Cache_Statistics(); - } - else { - $r->print("Unable to tie hash to db file"); - } - } - else { - if (tie(%CachData,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) { - tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640); - foreach (keys %DiscFac) {delete $CachData{$_};} - foreach (keys %CachData) {delete $CachData{$_};} - $DiscFlag=0; - &Build_Statistics(); - } - else { - $r->print("Unable to tie hash to db file"); - } - } - -# $r->print('Total instances of the problems : '.($p_count*($#students+1))); - untie(%CachData); - untie(%GraphDat); -} - - -# ------------------------------------- Find the section of student in a course - -sub usection { - my ($udom,$unam,$courseid,$ActiveFlag)=@_; - $courseid=~s/\_/\//g; - $courseid=~s/^(\w)/\/$1/; - - my %result=&Apache::lonnet::dump('roles',$udom,$unam); - my ($checkForResult)=keys(%result); - if ($checkForResult=~/^(con_lost|error|no_such_host)/i) { - return -1; - } - foreach my $key (keys (%result)) { - my $value=$result{$key}; - if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) { - my $section=$1; - if ($key eq $courseid.'_st') { $section=''; } - my ($dummy,$end,$start)=split(/\_/,$value); - if ( $ActiveFlag ne 'Any' ) { - my $now=time; - my $notactive=0; - if ($start) { - if ($now<$start) { $notactive=1; } - } - if ($end) { - if ($now>$end) { $notactive=1; } - } - if ((($ActiveFlag eq 'Expired') && $notactive == 1) || - (($ActiveFlag eq 'Active') && $notactive == 0 ) ) { - return $section; - } - else { return '-1'; } - } - return $section; - } - } - return '-1'; -} - - -# ------ Dump the Student's DB file and handling the data for statistics table -sub ExtractStudentData { - my $student=shift; - my ($sname,$sdom) = split( /\:/, $student ); - my %result = &Apache::lonnet::dump($cid,$sdom,$sname); - my $ResId; - my $PrOrd; - my $Dis = ''; - my $Code; - my $Tries; - my $ParCr; - my $TotalTries = 0; - my $TotalOpend = 0; - my $ProbSolved = 0; - my $ProbTot = 0; - my $TimeTot = 0; - my $TotParCr = 0; - my $Wrongs; - my %TempHash; - my $Version; - my $LatestVersion; - my $SecLimit; - my $MapLimit; - my ($temp)=keys(%result); - unless ($temp=~/^(con_lost|error|no_such_host)/i) { - foreach my $CurCol(@cols) { - ($PrOrd,$ResId)=split(/\:/,$CurCol); - if ( !$CurCol ) { next; } - $ResId=~/(\d+)\.(\d+)/; - my $MapId=$1; - my $PrbId=$2; - my $MapOrg = $hash{'map_id_'.$MapId}; - my $Map = &Apache::lonnet::declutter($MapOrg); - if ( $CurMap ne 'All Maps' ) { - my ( $ResMap, $NameMap ) = split(/\=/,$CurMap); - if ( $Map ne $ResMap ) { next; } - } - my $meta=$hash{'src_'.$ResId}; - my $PartNo = 0; - $Dis .= ':'; - undef %TempHash; - - foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { - if ($_=~/^stores\_(\w+)\_tries$/) { - my $Part=&Apache::lonnet::metadata($meta,$_.'.part'); - if ( $TempHash{"$Part"} eq '' ) { - $TempHash{"$Part"} = $Part; - $TempHash{$PartNo}=$Part; - $TempHash{"$Part.Code"} = 'U'; - $TempHash{"$Part.PrOrd"} = $PrOrd+$PartNo; - $PartNo++; - } - #my $Part=&Apache::lonnet::metadata($meta,$_.'.part'); - } +############################################## +############################################## + +=pod + +=item &MapSelect($elementname,$status,$numvisible,$restriction) + +Returns html for a selection box allowing the user to choose one (or more) +of the sequences in the course. The values of the sequences are the symbs. +If the top sequence is selected, the value 'top' will result. + +=over 4 + +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=item $restriction Code reference to subroutine which returns true or +false. The code must expect a reference to a sequence data structure. + +=back + +=cut + +############################################## +############################################## +sub MapSelect { + my ($elementname,$status,$numvisible,$restriction)=@_; + if ($numvisible < 1) { + return; + } + # + # Set up array of selected items + &SetSelectedMaps($elementname); + # + # Set up the restriction call + if (! defined($restriction)) { + $restriction = sub { 1; }; + } + # + # Build the form element + my $Str = "\n"; + $Str .= '\n"; + return $Str; +} + +############################################## +############################################## + +=pod + +=item &SectionSelect($elementname,$status,$numvisible) + +Returns html for a selection box allowing the user to choose one (or more) +of the sections in the course. + +=over 4 + +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=item $selected Array ref to the names of the already selected sections. +If undef, $ENV{'form.'.$elementname} is used. +If $ENV{'form.'.$elementname} is also empty, none will be selected. + +=item $restriction Code reference to subroutine which returns true or +false. The code must expect a reference to a sequence data structure. + +=back + +=cut + +############################################## +############################################## +sub SectionSelect { + my ($elementname,$status,$numvisible)=@_; + if ($numvisible < 1) { + return; + } + # + # Build the form element + my $Str = "\n"; + $Str .= '\n"; + return $Str; +} - $r->rflush(); +############################################## +############################################## + +sub CheckFormElement { + my ($cache, $ENVName, $cacheName, $default)=@_; + + if(defined($ENV{'form.'.$ENVName})) { + $cache->{$cacheName} = $ENV{'form.'.$ENVName}; + } elsif(!defined($cache->{$cacheName})) { + $cache->{$cacheName} = $default; + } else { + $ENV{'form.'.$ENVName} = $cache->{$cacheName}; + } + return; } +sub ProcessFormData{ + my ($cache)=@_; -sub Update_PrgWin { -#----------- update progress - my $index = shift; - $r->print(''); - $r->rflush(); + $cache->{'reportKey'} = 'false'; + + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['download', + 'reportSelected', + 'StudentAssessmentStudent', + 'ProblemStatisticsSort']); + &CheckFormElement($cache, 'DownloadAll', 'DownloadAll', 'false'); + if ($cache->{'DownloadAll'} ne 'false') { + # Clean the hell out of that cache! + # We cannot untie the hash at this scope (stupid libgd :( ) + # So, remove every single key. What a waste of time.... + # Of course, if you are doing this you are probably resigned + # to waiting a while. + &Apache::lonnet::logthis("Cleaning out the cache file"); + while (my ($key,undef)=each(%$cache)) { + next if ($key eq 'DownloadAll'); + delete($cache->{$key}); + } + } + &CheckFormElement($cache, 'Status', 'Status', 'Active'); + &CheckFormElement($cache, 'postdata', 'reportSelected', 'Class list'); + &CheckFormElement($cache, 'reportSelected', 'reportSelected', + 'Class list'); + $cache->{'reportSelected'} = + &Apache::lonnet::unescape($cache->{'reportSelected'}); + &CheckFormElement($cache, 'sort', 'sort', 'fullname'); + &CheckFormElement($cache, 'download', 'download', 'false'); + &CheckFormElement($cache, 'StatisticsMaps', + 'StatisticsMaps', 'All Maps'); + &CheckFormElement($cache, 'StatisticsProblemSelect', + 'StatisticsProblemSelect', 'All Problems'); + &CheckFormElement($cache, 'StatisticsPartSelect', + 'StatisticsPartSelect', 'All Parts'); + if(defined($ENV{'form.Section'})) { + my @sectionsSelected = (ref($ENV{'form.Section'}) ? + @{$ENV{'form.Section'}} : + ($ENV{'form.Section'})); + $cache->{'sectionsSelected'} = join(':', @sectionsSelected); + } elsif(!defined($cache->{'sectionsSelected'})) { + $cache->{'sectionsSelected'} = $cache->{'sectionList'}; + } + + # student assessment + if(defined($ENV{'form.CreateStudentAssessment'}) || + defined($ENV{'form.NextStudent'}) || + defined($ENV{'form.PreviousStudent'})) { + $cache->{'reportSelected'} = 'Student Assessment'; + } + if(defined($ENV{'form.NextStudent'})) { + $cache->{'StudentAssessmentMove'} = 'next'; + } elsif(defined($ENV{'form.PreviousStudent'})) { + $cache->{'StudentAssessmentMove'} = 'previous'; + } else { + $cache->{'StudentAssessmentMove'} = 'selected'; + } + &CheckFormElement($cache, 'StudentAssessmentStudent', + 'StudentAssessmentStudent', 'All Students'); + $cache->{'StudentAssessmentStudent'} = + &Apache::lonnet::unescape($cache->{'StudentAssessmentStudent'}); + &CheckFormElement($cache, 'DefaultColumns', 'DefaultColumns', 'false'); + + # Problem analysis + &CheckFormElement($cache, 'Interval', 'Interval', '1'); + + # ProblemStatistcs + &CheckFormElement($cache, 'DisplayCSVFormat', + 'DisplayFormat', 'Display Table Format'); + &CheckFormElement($cache, 'ProblemStatisticsAscend', + 'ProblemStatisticsAscend', 'Ascending'); + &CheckFormElement($cache, 'ProblemStatisticsSort', + 'ProblemStatisticsSort', 'Homework Sets Order'); + &CheckFormElement($cache, 'DisplayLegend', 'DisplayLegend', + 'Hide Legend'); + &CheckFormElement($cache, 'SortProblems', 'SortProblems', + 'Sort Within Sequence'); + + # Search only form elements + my @headingColumns=(); + my @sequenceColumns=(); + my $foundColumn = 0; + if(defined($ENV{'form.ReselectColumns'})) { + my @reselected = (ref($ENV{'form.ReselectColumns'}) ? + @{$ENV{'form.ReselectColumns'}} + : ($ENV{'form.ReselectColumns'})); + foreach (@reselected) { + if(/HeadingColumn/) { + push(@headingColumns, $_); + $foundColumn = 1; + } elsif(/SequenceColumn/) { + push(@sequenceColumns, $_); + $foundColumn = 1; + } + } + } + + $cache->{'reportKey'} = 'false'; + if($cache->{'reportSelected'} eq 'Analyze') { + $cache->{'reportKey'} = 'Analyze'; + } elsif($cache->{'reportSelected'} eq 'DoDiffGraph') { + $cache->{'reportKey'} = 'DoDiffGraph'; + } elsif($cache->{'reportSelected'} eq 'PercentWrongGraph') { + $cache->{'reportKey'} = 'PercentWrongGraph'; + } + + if(defined($ENV{'form.DoDiffGraph'})) { + $cache->{'reportSelected'} = 'DoDiffGraph'; + $cache->{'reportKey'} = 'DoDiffGraph'; + } elsif(defined($ENV{'form.PercentWrongGraph'})) { + $cache->{'reportSelected'} = 'PercentWrongGraph'; + $cache->{'reportKey'} = 'PercentWrongGraph'; + } + + foreach (keys(%ENV)) { + if(/form\.Analyze/) { + $cache->{'reportSelected'} = 'Analyze'; + $cache->{'reportKey'} = 'Analyze'; + my $data; + (undef, $data)=split(':::', $_); + $cache->{'AnalyzeInfo'}=$data; + } elsif(/form\.HeadingColumn/) { + my $value = $_; + $value =~ s/form\.//; + push(@headingColumns, $value); + $foundColumn=1; + } elsif(/form\.SequenceColumn/) { + my $value = $_; + $value =~ s/form\.//; + push(@sequenceColumns, $value); + $foundColumn=1; + } + } + + if($foundColumn) { + $cache->{'HeadingsFound'} = join(':', @headingColumns); + $cache->{'SequencesFound'} = join(':', @sequenceColumns);; + } + if(!defined($cache->{'HeadingsFound'}) || + $cache->{'DefaultColumns'} ne 'false') { + $cache->{'HeadingsFound'}='HeadingColumnFull Name'; + } + if(!defined($cache->{'SequencesFound'}) || + $cache->{'DefaultColumns'} ne 'false') { + $cache->{'SequencesFound'}='All Sequences'; + } + $cache->{'DefaultColumns'} = 'false'; + + return; } -sub Close_PrgWin { -#--------------------- close Progress Line - $r->print(''); - $r->rflush(); -} - -sub Build_Statistics { - &Create_PrgWin(); -# ---------------------------- Gathering the Data of students' tries - for (my $index=0;$index<=$#students;$index++) { - &Update_PrgWin($index); - &ExtractStudentData($students[$index]); - } - -# -------------------- sorting the Data - $r->print(''); - - @list = sort (@list); - - &Discriminant(); - - $OpSel2=''; - $OpSel1='selected'; - - $p_count = 0; - my $nIdx = 0; - my $dummy; - my $p_val; - my $ResId; - my $NoElements = $#list + 1; -#-------------------------------- loop for data representation - foreach (sort keys %mapsort) { - my ($Hid,$pr)=split(/\:/,$mapsort{$_}); - my @lpr=split(/\&/,$pr); - &CreateTable(1,$Hid); - for (my $i=1; $i<=$#lpr; $i++) { - my %storestats=(); - my ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list[$nIdx]); - my $Temp = $Prob; - my $MxTries = 0; - my $TotalTries = 0; - my $YES = 0; - my $Incorrect = 0; - my $Override = 0; - my $StdNo = 0; - my @StdLst; - while ( $PrOrd == $lpr[$i] ) - { - $nIdx++; - $StdNo++; - $StdLst[ $StdNo ] = $Tries; - $TotalTries += $Tries; - if ( $MxTries < $Tries ) { $MxTries = $Tries; } - if ( $Code eq 'C' ){ $YES++; } - elsif( $Code eq 'I' ) { $Incorrect++; } - elsif( $Code eq 'O' ) { $Override++; } - elsif( $Code eq 'U' ) { $StdNo--; } - ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list[$nIdx]); - } - - $p_count++; - my $Dummy; - ($ResId,$Dummy)=split(/\*/,$Temp); - - $Temp = ''.$hash{'title_'.$ResId}.$Dummy.''; - - my $res = &Apache::lonnet::declutter($hash{'src_'.$ResId}); - my $urlres=$res; - - $ResId=~/(\d+)\.(\d+)/; - my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} ); - $urlres=$Map; - - $res = ''.$res.''; - #$Map = ''.$res.''; - -#------------------------ Compute the Average of Tries about one problem - my $Average = ($StdNo) ? $TotalTries/$StdNo : 0; - - $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___timestamp'}=time; - $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___stdno'}=$StdNo; - $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___avetries'}=$Average; - -#-------------------------------- Compute percentage of Wrong tries - my $Wrong = ( $StdNo ) ? 100 * ( $Incorrect / $StdNo ) : 0; - -#-------------------------------- Compute Standard Deviation - my $StdDev = 0; - if ( $StdNo > 1 ) { - for ( my $n = 0; $n < $StdNo; $n++ ) { - my $Dif = $StdLst[ $n ]-$Average; - $StdDev += $Dif*$Dif; - } - $StdDev /= ( $StdNo - 1 ); - $StdDev = sqrt( $StdDev ); - } - -#-------------------------------- Compute Degree of Difficulty - my $DoDiff = 0; - if( $TotalTries > 0 ) { - $DoDiff = 1 - ( ( $YES + $Override ) / $TotalTries ); -# $DoDiff = ($TotalTries)/($YES + $Override+ 0.1); - } - - $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___difficulty'}=$DoDiff; - -#-------------------------------- Compute the Skewness - my $Skewness = 0; - my $Sum = 0; - if ( $StdNo > 0 && $StdDev > 0 ) { - for ( my $n = 0; $n < $StdNo; $n++ ) { - my $Dif = $StdLst[ $n ]-$Average; - $Skewness += $Dif*$Dif*$Dif; - } - $Skewness /= $StdNo; - $Skewness /= $StdDev*$StdDev*$StdDev; - } - -#--------------------- Compute the Discrimination Factors - my ($Up1,$Up2)=split(/\:/,$DisUp{$lpr[$i]}); - my ($Lw1,$Lw2)=split(/\:/,$DisLow{$lpr[$i]}); - 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 = $lpr[$i].'&'.$Temp.'&'.$StdNo.'&'. - $TotalTries.'&'.$MxTries.'&'.$Avg.'&'. - $YES.'&'.$Override.'&'.$Wrng.'&'.$DoD.'&'. - $SD.'&'.$Sk.'&'.$_D1.'&'.$_D2.'&'. - $Prob; - $CachData{($p_count-1)}=$join; - - $urlres=~/^(\w+)\/(\w+)/; - if ($StdNo) { - &Apache::lonnet::put('resevaldata',\%storestats,$1,$2); - } -#-------------------------------- Row of statistical table - if ( $DiscFlag == 0 ) { - &TableRow($join,$i,($p_count-1)); - } - } - &CloseTable(); - } - &Close_PrgWin(); -} - -sub Cache_Statistics { - my @list = (); - my $Useful; - my $UnUseful; -# $r->print(''."\n"); - my %myHeader = reverse( %Header ); - $Pos = $myHeader{$ENV{'form.sort'}}; - if ($Pos > 0) {$Pos++;} - $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 $nIdx=0; - - if ( $Pos == 0 ) { - foreach (sort keys %mapsort) { - my ($Hid,$pr)=split(/\:/,$mapsort{$_}); - &CreateTable(1,$Hid); - my @lpr=split(/\&/,$pr); - for (my $i=1; $i<=$#lpr; $i++) { - my($Pre, $Post) = split(/\@/,$list[$nIdx]); - #$r->print('
'. - ' Tries : Total Number of Tries for solving the problem.
'. - ' Mod : Maximunm Number of Tries for solving the problem.
'. - ' Mean : Average Number of the tries. [ Tries / #Stdnts ]
'. - ' #YES : Number of students solved the problem correctly.
'. - ' #yes : Number of students solved the problem by override.
'. - ' %Wrng : Percentage of students tried to solve the problem but'. - ' still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]
'. -# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]
'. Kashy formula - ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]
'. #Gerd formula - ' S.D. : Standard Deviation of the tries.'. - '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'. - ' where Xi denotes every student\'s tries ]
'. - ' Skew. : Skewness of the students tries.'. - ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ]
'. - ' Dis.F. : Discrimination Factor: A Standard for '. - 'evaluating the problem according to a Criterion
'. - ' [Applied Criterion in %27 Upper Students - '. - 'Applied the same Criterion in %27 Lower Students]
'. - ' 1st Criterion for Sorting the Students: '. - 'Sum of Partial Credit Awarded / Total Number of Tries
'. - ' 2nd Criterion for Sorting the Students: '. - 'Total number of Correct Answers / Total Number of Tries'. - '
'.$Pre.'---'.$Post); - &TableRow($Post,$i,$nIdx); - $nIdx++; - } - &CloseTable(); - } - } - else { - &CreateTable(0); - for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) { - my($Pre, $Post) = split(/\@/,$list[$nIdx]); - &TableRow($Post,$nIdx,$nIdx); - } - &CloseTable(); - } -} - -sub TableRow { - my ($Str,$Idx,$RealIdx)=@_; - my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, - $Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$Prob)=split(/\&/,$Str); - if ($ENV{'form.showcsv'}) { - my ($ResId,$Dummy)=split(/\*/,$Prob); - my $Ptr = "\n".'
'. - "\n".'"'.($RealIdx+1).'",'. - "\n".'"'.$hash{'title_'.$ResId}.$Dummy.'",'. - "\n".'"'.$hash{'src_'.$ResId}.'",'. - "\n".'"'.$StdNo.'",'. - "\n".'"'.$TotalTries.'",'. - "\n".'"'.$MxTries.'",'. - "\n".'"'.$Avg.'",'. - "\n".'"'.$YES.'",'. - "\n".'"'.$Override.'",'. - "\n".'"'.$Wrng.'",'. - "\n".'"'.$DoD.'",'. - "\n".'"'.$SD.'",'. - "\n".'"'.$Sk.'",'. - "\n".'"'.$_D1.'",'. - "\n".'"'.$_D2.'"'; - $r->print("\n".$Ptr); - } - else{ - my $Ptr = "\n".'
Could not access course data
'); - } else { - foreach my $name (keys (%classlist)) { - my $value=$classlist{$name}; - my ($end,$start)=split(/\:/,$value); - my $active=1; - my $Status=$ENV{'form.status'}; - $Status = ($Status) ? $Status : 'Active'; - if ( ( ($end) && $now > $end ) && - ( ($Status eq 'Active') ) ) { $active=0; } - if ( ($Status eq 'Expired') && - ($end == 0 || $now < $end) ) { $active=0; } - if ($active) { - my $thisindex=$#students+1; - $students[$thisindex]=$name; - my ($sname,$sdom)=split(/\:/,$name); - my $ssec=&usection($sdom,$sname,$cid,$Status); - if ($ssec==-1 || $ssec eq 'adm' ) {next;} - $ssec=($ssec) ? $ssec : '(none)'; - #$ssec=(int($ssec)) ? int($ssec) : $ssec; - $section{$ssec}=$ssec; - if ($CurSec eq 'All Sections' || $ssec eq $CurSec) { - $students[$StudNo]=$name; - $StuBox{$sname}=$sdom; - } - $StudNo++; - } - } - } +Determines the width of all the columns in the chart. It is based on +the max of the data for that column and its header. - $r->print("Total number of students : ".($#students+1)); - $r->rflush(); -# --------------- Find all assessments and put them into some linear-like order - &tracetable($firstres,'&'.$lastres.'&'); -# my $c=0; -# foreach (sort keys %mapsort) { -# $r->print(''.$c.')'.$_.' ... '.$mapsort{$_}); -# $c++; -# } -# my $c=1; -# foreach (sort keys %OpResp) { -# $r->print('
'.$c.')'.$_.' ... '.$OpResp{$_}.' ... '.$hash{'src_'.$OpResp{$_}}); -# $c++; -# } - - } - -# ------------------------------------------------------------- End render page - else { - $r->print('
Undefined course sequence
'); - } -} - - -sub Title { - $r->print('
');
-# ---------------------------------------------------------------- Course title
- $r->print('Course : "'. - $ENV{'course.'.$ENV{'request.course.id'}. - '.description'}.'"
'.localtime().'
'); -# ------------------------------- This is going to take a while, produce output - $r->rflush(); -} - - -sub CreateForm { - $r->print("\n".''); +=over 4 + +Input: $students, $studentInformation, $headings, $ChartDB + +$students: An array pointer to a list of students (username:domain) + +$studentInformatin: The type of data for the student information. It is +used as part of the key in $CacheData. + +$headings: The name of the student information columns. + +$ChartDB: The name of the cache database which is opened for read/write. + +Output: None - All data stored in cache. + +=back + +=cut + +sub SpaceColumns { + my ($students,$studentInformation,$headings,$cache)=@_; + + # Initialize Lengths + for(my $index=0; $index<(scalar @$headings); $index++) { + my @titleLength=split(//,$headings->[$index]); + $cache->{$studentInformation->[$index].':columnWidth'}= + scalar @titleLength; } - $r->print("\n".''. - "\n".''); + + foreach my $name (@$students) { + foreach (@$studentInformation) { + my @dataLength=split(//,$cache->{$name.':'.$_}); + my $length=(scalar @dataLength); + if($length > $cache->{$_.':columnWidth'}) { + $cache->{$_.':columnWidth'}=$length; + } + } + } + + return; +} + +sub PrepareData { + my ($c, $cacheDB, $studentInformation, $headings,$r)=@_; + + # Test for access to the cache data + my $courseID=$ENV{'request.course.id'}; + my $isRecalculate=0; + if(defined($ENV{'form.Recalculate'})) { + $isRecalculate=1; + } + + my $isCached = &Apache::loncoursedata::TestCacheData($cacheDB, + $isRecalculate); + if($isCached < 0) { + return "Unable to tie hash to db file."; + } + + # Download class list information if not using cached data + my %cache; + unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { + return "Unable to tie hash to db file."; + } + +# if(!$isCached) { + my $processTopResourceMapReturn= + &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c); + if($processTopResourceMapReturn ne 'OK') { + untie(%cache); + return $processTopResourceMapReturn; + } + # } + + if($c->aborted()) { + untie(%cache); + return 'aborted'; + } + + my $classlist=&Apache::loncoursedata::DownloadClasslist($courseID, + $cache{'ClasslistTimestamp'}, + $c); + foreach (keys(%$classlist)) { + if(/^(con_lost|error|no_such_host)/i) { + untie(%cache); + return "Error getting student data."; + } + } + + if($c->aborted()) { + untie(%cache); + return 'aborted'; + } + + # Active is a temporary solution, remember to change + Apache::loncoursedata::ProcessClasslist(\%cache,$classlist,$courseID,$c); + if($c->aborted()) { + untie(%cache); + return 'aborted'; + } + + &ProcessFormData(\%cache); + my $students = &SortStudents(\%cache); + &SpaceColumns($students, $studentInformation, $headings, \%cache); + $cache{'updateTime:columnWidth'}=24; + + my $download = $cache{'download'}; + my $downloadAll = $cache{'DownloadAll'}; + my @allStudents=(); + if($download ne 'false') { + $cache{'download'} = 'false'; + } elsif($downloadAll ne 'false') { + $cache{'DownloadAll'} = 'false'; + if($downloadAll eq 'sorted') { + @allStudents = @$students; + } else { + @allStudents = split(':::', $cache{'NamesOfStudents'}); + } + } + + untie(%cache); + + if($download ne 'false') { + my @who = ($download); + if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'false', + $cacheDB, 'true', + 'false', $courseID, + $r, $c) ne 'OK') { + return 'Stop at download individual'; + } + } elsif($downloadAll ne 'false') { + if(&Apache::loncoursedata::DownloadStudentCourseData(\@allStudents, + 'false', + $cacheDB, 'true', + 'true', $courseID, + $r, $c) ne 'OK') { + return 'Stop at download all'; + } + } + + return ('OK', $students); +} + +sub DisplayClasslist { + my ($r)=@_; + # + my @Fields = ('fullname','username','domain','id','section'); + # + my $Str=''; + $Str .= ''."\n";
+ $Str .= '
|
Select Student'."\n". - ''; - $Ptr .= '
'; - $r->print( $Ptr ); - $r->rflush(); -} - - -sub GetStatus { - $OpSel1=''; - $OpSel2=''; - $OpSel3=''; - $OpSel4=''; - - if ( $ENV{'form.order'} eq 'Descending' ) { $OpSel2='selected'; } - else { $OpSel1 = 'selected'; } - - my %myHeader = reverse( %Header ); - $Pos = $myHeader{$ENV{'form.sort'}}; - if ($Pos == 0) { - $OpSel1 = 'selected'; - $ENV{'form.order'}='Ascendig'; - } - - $CurMap = $ENV{'form.maps'}; - if ( $CurMap eq '' ) { - $CurMap = 'All Maps'; - $OpSel3 = 'selected'; - } - $CurSec = $ENV{'form.section'}; - if ( $CurSec eq '' ) { - $CurSec = 'All Sections'; - $OpSel4 = 'selected'; - } -} - - -sub MapSecOptions { -# ----------------------------------- Loading the Maps Combobox - my $Ptr = '
'; - $Ptr .= ''; - $Ptr .= '
Select Map '."\n". - ''; - $Ptr .= ' '; - -# ----------------------------------- Loading the Sections Combobox - $Ptr .= '
Select Section'."\n". - '