$Count) ".localtime($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 NumericSort { - $a <=> $b; +#---- Analyze Web Page --------------------------------------------------- + +sub InitAnalysis { + my ($uri,$part,$problem,$student,$courseID)=@_; + my ($username,$userdomain)=split(/\:/,$student); + + # Render the student's view of the problem. $Answ is the problem + # Stringafied + my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze', + 'grade_username' => $username, + 'grade_domain' => $userdomain, + 'grade_courseid' => $courseID, + 'grade_symb' => $problem)); +# my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze')); + +# (undef,$Answ)=split(/_HASH_REF__/,$Answ,2); + %Answer=(); + %Answer=&Apache::lonnet::str2hash($Answ); + +# foreach (sort(keys(%Answer))) { +# $r->print($_.' '.$Answer{$_}.'
'); +# } + + 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.$foil"}; + } + } + + return; } -# ------ Create different Student Report -sub StudentReport { - my ($sname,$sdom)=@_; - if ( $sname eq 'All Students' ) { - $r->print( '
WARNING: - Please select a student
' ); - return; +sub Interval { + my ($part,$symb)=@_; + my $interval=$ConceptData{"Interval"}; + my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb)+1; + my $open = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb); + my $add=int(($due-$open)/$interval); + $ConceptData{'Interval.0'}=$open; + for (my $i=1;$i<$interval;$i++) { + $ConceptData{'Interval.'.$i}=$open+$i*$add; + } + $ConceptData{'Interval.'.$interval}=$due; + for (my $i=0;$i<$interval;$i++) { + for (my $n=0; $n<=$#Concepts; $n++ ) { + my $tmp=$Concepts[$n]; + $ConceptData{$tmp.'.'.$i.'.true'}=0; + $ConceptData{$tmp.'.'.$i.'.false'}=0; + } } - my $shome=&Apache::lonnet::homeserver( $sname,$sdom ); - my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.':'.$cid,$shome ); - my %result = (); - my $ResId; - my $Code; - my $Tries; - my $TotalTries = 0; - my $ParCr = 0; - my $Wrongs; - my %TempHash; - my $Version; - my $LatestVersion; - my $PtrTry=''; - my $PtrCod=''; - my $SetNo=0; +} + +sub ShowOpGraph { + my ($cache, $students, $courseID)=@_; + my $uri = $cache->{'AnalyzeURI'}; + my $part = $cache->{'AnalyzePart'}; + my $problem = $cache->{'AnalyzeProblem'}; + my $title = $cache->{'AnalyzeProblem'}; + my $interval = $cache->{'Interval'}; + $ConceptData{"Interval"} = $interval; + + #Initialize the option response true answers + &InitAnalysis($uri, $part, $problem, $students->[0],$courseID); + + #compute the intervals + &Interval($part,$problem); + + $title =~ s/\ /"_"/eg; + $r->print(''.$uri.''); + $r->rflush(); + + #Java script Progress window + &Create_PrgWin(); + &Update_PrgWin("Starting to analyze problem",0,0,''); + for(my $index=0; $index<(scalar @$students); $index++) { + &Update_PrgWin(scalar @$students, $index+1, $students->[$index]); + &OpStatus($problem, $students->[$index], $courseID); + } + &Close_PrgWin(); + + $r->print('
'); + for(my $k=0; $k<$interval; $k++ ) { + &DrawGraph($k,$title); + } + for(my $k=0; $k<$interval; $k++ ) { + &DrawTable($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".'Set Title | '. - "\n".'Results | '. - "\n".'Tries | '. + "\n".'Concept | '. + "\n".'Correct | '. + "\n".'Wrong | '. "\n".'
|---|---|---|---|---|---|---|
| $SetNo | ". - "\n"."$Set | ". - "\n"."$PtrCod | ". - "\n"."$PtrTry | ". - "\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 | "; + $Str .= "\n".'
'); +sub DrawGraph { + my ($currentInterval,$title)=@_; + my $Max=0; + my @data1; + my @data2; + + # Adjust Data and find the Max + for(my $n=0; $n<=$#Concepts; $n++ ) { + my $tmp=$Concepts[$n]; + $data1[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.true'}; + $data2[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.false'}; + 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 = scalar @data1; - my $Ptr = ''; + if($Max > 1) { + $Max += (10 - $Max % 10); + $Max = int($Max); + } else { + $Max = 1; + } + + my $Titr=($ConceptData{'Interval'}>1) ? + $title.'_interval_'.($currentInterval+1) : $title; +# $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2; + $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&'; + $GData .= (join(',',@data1)).'&'.(join(',',@data2)); - $Ptr .= '
Sorting Type: '."\n". - ' '."\n"; - $Ptr .= ' '; - $Ptr .= ''."\n"; - $Ptr .= ' '; - $Ptr .= ''."\n"; + $r->print('
');
+}
- $Ptr .= ''. - ' #Stdnts: Total Number of Students opened the problem.'; - $r->print($Ptr); - $r->rflush(); - - my $Result = "\n".'
'. - ' 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 / #Stdns ]
'. - ' #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) ]
'. - ' S.D. : Standard Deviation of the tries.'. - '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'. - ' where Xi is every student\'s tries ]
'. - ' Skew. : Skewness of the students tries.'. - ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ]
'. -# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]
'. - ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]
'. -# ' Dis.F. : Discrimination Factor. [ Sum of Partial Credits Awarded / Total Number of Tries in %27 upper and lower students]'. - '
| P# | '."\n"; - for ( my $nIdx=0; $nIdx < 12; $nIdx++ ) { - $Result .= ''.''.' | '."\n"; - } - $Result .= "\n".'
|---|
"'.$sequenceTitle.'","'); + $r->print($sequenceSource.'"'); + return; + } -# ------------------------------------- Find the section of student in a course + $r->print('
'.$sequenceTitle.''); -sub usection { - my ($udom,$unam,$courseid)=@_; - $courseid=~s/\_/\//g; - $courseid=~s/^(\w)/\/$1/; - map { - my ($key,$value)=split(/\=/,$_); - $key=&Apache::lonnet::unescape($key); - if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) { - my $section=$1; - if ($key eq $courseid.'_st') { $section=''; } - my ($dummy,$end,$start)=split(/\_/,&Apache::lonnet::unescape($value)); - $section=($section) ? $section : '(none)'; -# $section=(int($section)) ? int($section) : $section; -# $r->print($unam.'...'.$section.'
'); - return $section; - } - } split(/\&/,&Apache::lonnet::reply('dump:'.$udom.':'.$unam.':roles', - &Apache::lonnet::homeserver($unam,$udom))); - return ''; + my $Result = "\n".'
| P# | '."\n"; + for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) { + $Result .= ''.''.' | '."\n"; + } + $Result .= "\n".'
|---|
'); - } split(/\&/,$reply); - foreach $ResId (@cols) { - if ( !$ResId ) { next; } - $ResId=~/(\d+)\.(\d+)/; - my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} ); - if ( $CurMap ne 'All Maps' ) { - my ( $ResMap, $NameMap ) = split(/\=/,$CurMap); - if ( $Map ne $ResMap ) { next; } - } - my $meta=$hash{'src_'.$ResId}; - my $PartNo = 0; - $Dis .= ':'; - undef %TempHash; - map { - if ($_=~/^stores\_(\d+)\_tries$/) { - my $Part=&Apache::lonnet::metadata($meta,$_.'.part'); - if ( $TempHash{"$Part"} eq '' ) { - $TempHash{"$Part"} = $Part; - $TempHash{$PartNo}=$Part; - $TempHash{"$Part.Code"} = 'U'; - $PartNo++; - } - } - } split(/\,/,&Apache::lonnet::metadata($meta,'keys')); + my ($cache,$name)=@_; + my %discriminantFactor; + my @list=(); + + my $totalTries = 0; + my $totalAwarded = 0; + my $tempProblemOrder=0; + foreach my $sequence (split(':', $cache->{'orderedSequences'})) { + if($cache->{'ProblemStatisticsMap'} ne 'All Maps' && + $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) { + next; + } - my $Prob = $Map.'___'.$2.'___'. - &Apache::lonnet::declutter( $hash{'src_'.$ResId} ); - $Code='U'; - $Tries = 0; - $ParCr = 0; - $Wrongs = 0; - $LatestVersion = $result{"version:$Prob"}; - - if ( $LatestVersion ) { - for ( my $Version=1; $Version<=$LatestVersion; $Version++ ) { - my $vkeys = $result{"$Version:keys:$Prob"}; - my @keys = split(/\:/,$vkeys); - - foreach my $Key (@keys) { - if (($Key=~/\.(\w+)\.solved$/) && ($Key!~/^\d+\:/)) { - my $Part = $1; - $Tries = $result{"$Version:$Prob:resource.$Part.tries"}; - $ParCr = $result{"$Version:$Prob:resource.$Part.awarded"}; - my $Time = $result{"$Version:$Prob:timestamp"}; - $TempHash{"$Part.Time"} = ($Time) ? $Time : 0; - $TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0; - $TempHash{"$Part.ParCr"} = ($ParCr) ? $ParCr : 0; - $TotalTries += $TempHash{"$Part.Tries"}; - $TotParCr += $TempHash{"$Part.ParCr"}; -#$r->print($Version.'---'.$Prob.'==='.$Time.'
'); - my $Val = $result{"$Version:$Prob:resource.$Part.solved"}; - if ( $Val eq 'correct_by_student' ) - { $Wrongs = $Tries - 1; $Code = 'C'; } - elsif ( $Val eq 'correct_by_override' ) - { $Wrongs = $Tries - 1; $Code = 'O'; } - elsif ( $Val eq 'incorrect_attempted' || - $Val eq 'incorrect_by_override' ) - { $Wrongs = $Tries; $Code = 'I'; } - $TempHash{"$Part.Code"} = $Code; - $TempHash{"$Part.Wrongs"} = $Wrongs; - } - } - } - for ( my $n = 0; $n < $PartNo; $n++ ) { - my $part = $TempHash{$n}; - my $Yes = 0; - if ( $TempHash{$part.'.Code'} eq 'C' || - $TempHash{$part.'.Code'} eq 'O' ) - {$ProbSolved++;$Yes=1;} - my $ptr = "$hash{'title_'.$ResId}"; - if ( $PartNo > 1 ) { - $ptr .= " (part $part)"; - $Dis .= ':'; - } - my $Fac = ($TempHash{"$part.Tries"}) ? - ($TempHash{"$part.ParCr"}/$TempHash{"$part.Tries"}) : 0; - my $DisF; - if ( $Fac > 0 && $Fac < 1 ) { - $DisF = sprintf( "%.4f", $Fac ); - } - else {$DisF = $Fac;} -# $DisF .= '+'.$TempHash{"$part.Time"}; - $TimeTot += $TempHash{"$part.Time"}; - $Dis .= $ptr.'*'.$ResId.'='.$DisF.'+'.$Yes; - $ptr .= "*$ResId:$TempHash{$part.'.Tries'}". - ":$TempHash{$part.'.Wrongs'}". - ":$TempHash{$part.'.Code'}"; -#$r->print($sname.' -- '.$ptr.'--- timestamp='.$TempHash{"$part.Time"}.'
'); - push (@list, $ptr); - $TotalOpend++; - $ProbTot++; - } + my $Dis = ''; + foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { + my $problem = $cache->{$problemID.':problem'}; + my $LatestVersion = $cache->{$name.':version:'.$problem}; + + # Output dashes for all the parts of this problem if there + # is no version information about the current problem. + #if(!$LatestVersion) { + # foreach my $part (split(/\:/,$cache->{$sequence.':'. + # $problemID. + # ':parts'})) { + # $codes .= "-,"; + # $attempts .= "0,"; + # } + # next; + #} + + my %partData=undef; + # Initialize part data, display skips correctly + # Skip refers to when a student made no submissions on that + # part/problem. + foreach my $part (split(/\:/,$cache->{$sequence.':'. + $problemID. + ':parts'})) { + $partData{$part.':tries'}=0; + $partData{$part.':code'}='-'; + } + + # Looping through all the versions of each part, starting with the + # oldest version. Basically, it gets the most recent + # set of grade data for each part. + for(my $Version=1; $Version<=$LatestVersion; $Version++) { + foreach my $part (split(/\:/,$cache->{$sequence.':'. + $problemID. + ':parts'})) { + + if(!defined($cache->{$name.":$Version:$problem". + ":resource.$part.solved"})) { + # No grade for this submission, so skip + next; + } + + my $tries=0; + my $time=0; + my $awarded=0; + my $code='U'; + + $awarded = $cache->{$name. + "$Version:$problem:resource.". + "$part.awarded"}; + $partData{$part.':awarded'} = ($awarded) ? $awarded : 0; + $totalAwarded += $awarded; + + $tries = $cache->{$name.":$Version:$problem". + ":resource.$part.tries"}; + $partData{$part.':tries'} = ($tries) ? $tries : 0; + $partData{$part.':wrong'} = $partData{$part.':tries'}; + $totalTries += $tries; + + my $val = $cache->{$name.":$Version:$problem". + ":resource.$part.solved"}; + if ($val eq 'correct_by_student') {$code = 'C';} + elsif ($val eq 'correct_by_override') {$code = 'O';} + elsif ($val eq 'incorrect_attempted') {$code = 'I';} + elsif ($val eq 'incorrect_by_override'){$code = 'I';} + elsif ($val eq 'excused') {$code = 'x';} + $partData{$part.':code'}=$code; + + if($partData{$part.':wrong'} ne 0 && + ($code eq 'C' || $code eq 'O')) { + $partData{$part.':wrong'}--; + } + } + } + + # Loop through all the parts for the current problem in the + # correct order and prepare the output + foreach (split(/\:/,$cache->{$sequence.':'.$problemID. + ':parts'})) { + my $Yes = 0; + if($partData{$_.':code'} eq 'C' || + $partData{$_.':code'} eq 'O') { + $Yes=1; + } + #my $ptr = "$hash{'title_'.$ResId}"; + my $ptr = $tempProblemOrder.'&'.$problemID; + + if($_ > 1) { + $ptr .= "*(part $_)"; + $Dis .= '&'; + } + my $Fac = ($partData{$_.':Tries'}) ? + ($partData{$_.':awarded'}/$partData{$_.':tries'}) : 0; + my $DisF; + if($Fac > 0 && $Fac < 1) { + $DisF = sprintf( "%.4f", $Fac ); + } else { + $DisF = $Fac; + } + $Dis .= $tempProblemOrder.'='.$DisF.'+'.$Yes; + $ptr .= '&'.$partData{$_.'.Tries'}. + '&'.$partData{$_.'.Wrongs'}. + '&'.$partData{$_.'.Code'}; + push (@list, $ptr); + $tempProblemOrder++; } - else { - for(my $n=0; $n<$PartNo; $n++) { - push (@list, "$hash{'title_'.$ResId}*$ResId:0:0:U"); - $ProbTot++; - } - } } - if ( $TotalTries ) { - my $DisFac = ( $TotalTries ) ? ($TotParCr/$TotalTries) : 0; -# my $DisFactor = int(sprintf( "%.4f", $DisFac ) * 100); + if($totalTries) { + my $DisFac = ($totalAwarded/$totalTries); my $DisFactor = sprintf( "%.4f", $DisFac ); - my $time; - if ($ProbSolved){ - $time = int(($TimeTot/$ProbSolved)/10000000); - } - $DiscFac{($DisFactor.':'.$sname.':'.$ProbTot.':'.$TotalOpend.':'. - $TotalTries.':'.$ProbSolved.':'.$time)}=$Dis; -#$r->print($DisFactor.$sname.'
--- Dis= '.$Dis.'
'); + $discriminantFactor{$DisFactor}=$Dis; } } - #$r->print($sname.' PrCr= '.$TotParCr.' Slvd= '.$ProbSolved.' Tries='.$TotalTries.'
'); -} - -# ------------------------------------------------------------ Build page table -sub tracetable { - my ($rid,$beenhere)=@_; - $rid=~/(\d+)\.(\d+)/; - $maps{&Apache::lonnet::declutter($hash{'map_id_'.$1})}='';#$hash{'title_'.$rid}; - unless ($beenhere=~/\&$rid\&/) { - $beenhere.=$rid.'&'; - if (defined($hash{'is_map_'.$rid})) { - my $cmap=$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}}; - if ( $cmap eq 'sequence' || $cmap eq 'page' ) { - $cols[$#cols+1]=0; - $HWN++; - $mapsort[$HWN]=$rid.$hash{'title_'.$rid}; - #$maps{&Apache::lonnet::declutter($hash{'src_'.$rid})}= - # $hash{'title_'.$rid}; - } - if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) && - (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) { - my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}}; - - &tracetable($hash{'map_start_'.$hash{'src_'.$rid}}, - '&'.$frid.'&'); - - if ($hash{'src_'.$frid}) { - if ($hash{'src_'.$frid}=~ - /\.(problem|exam|quiz|assess|survey|form)$/) { - $cols[$#cols+1]=$frid; - $mapsort[$HWN] .= '&'.$frid; - } - } - } - } else { - if ($hash{'src_'.$rid}) { - if ($hash{'src_'.$rid}=~ - /\.(problem|exam|quiz|assess|survey|form)$/) { - $cols[$#cols+1]=$rid; - $mapsort[$HWN] .= '&'.$rid; - } - } - } - if (defined($hash{'to_'.$rid})) { - map { - &tracetable($hash{'goesto_'.$_},$beenhere); - } split(/\,/,$hash{'to_'.$rid}); - } - } + return (\%discriminantFactor, \@list); } sub MySort { - if ( $Pos > 0 && $Pos < 11 ) { + if ( $Pos > 0 ) { if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;} else { $a <=> $b; } } @@ -526,537 +608,1290 @@ sub MySort { } } -sub Build_Statistics { - $r->print(<
Computation Progress
'+ - ''+ - ''); - popwin.document.close(); - -ENDPOP - - $r->rflush(); -# ---------------------------- Gathering the Data of students' tries - my $index; - for ($index=0;$index<=$#students;$index++) { -#----------- update progress - $r->print(''); - $r->rflush(); +sub BuildStatisticsTable { + my ($cache,$discriminantFactor,$list,$headings)=@_; - &ExtractStudentData($students[$index],$cid); - } -#--------------------- close Progress Line - $r->print(''); - $r->rflush(); -# -------------------- sorting the Data - @list = sort(@list); - $OpSel2=''; - $OpSel1='selected'; - - $p_count = 0; - my $nIdx = 0; - my $dummy; + my $p_count = 0; + my $nIndex = 0; + my $dummy; my $p_val; my $ResId; - my $NoElements = $#list + 1; -#-------------------------------- loop for data representation - while ( $nIdx < $NoElements ) { - my %storestats=(); - my ($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; - do { - $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' ) { $StdNo--; } - ($Prob,$Tries,$Wrongs,$Code)=split(/\:/,$list[$nIdx]); - } while ( $Prob eq $Temp && $nIdx < $NoElements ); + my $NoElements = scalar @$list; - $p_count++; - - ($Temp,$ResId)=split(/\*/,$Temp); - - $Temp = ''.$Temp.''; - - my $res = &Apache::lonnet::declutter($hash{'src_'.$ResId}); - my $urlres=$res; + foreach my $sequence (split(':', $cache->{'orderedSequences'})) { + if($cache->{'ProblemStatisticsMap'} ne 'All Maps' && + $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) { + next; + } - $ResId=~/(\d+)\.(\d+)/; - my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} ); - $urlres=$Map; + &CreateProblemStatisticsTableHeading($cache->{'DisplayFormat'}, + $cache->{$sequence.':source'}, + $cache->{$sequence.':title'}, + $headings); + my ($Hid,$pr)=split(/\:/,$mapsort{$_}); + my @lpr=split(/\&/,$pr); + for (my $i=1; $i<=$#lpr; $i++) { + my %storestats=(); + my ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]); + my $Temp = $Prob; + my $MxTries = 0; + my $TotalTries = 0; + my $YES = 0; + my $Incorrect = 0; + my $Override = 0; + my $StdNo = 0; + my @StdLst; + while ( $PrOrd == $lpr[$i] ) + { + $nIndex++; + $StdNo++; + $StdLst[ $StdNo ] = $Tries; + $TotalTries += $Tries; + if ( $MxTries < $Tries ) { $MxTries = $Tries; } + if ( $Code eq 'C' ){ $YES++; } + elsif( $Code eq 'I' ) { $Incorrect++; } + elsif( $Code eq 'O' ) { $Override++; } + elsif( $Code eq 'U' ) { $StdNo--; } + ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]); + } + + $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.''; + $res = ''.$res.''; + #$Map = ''.$res.''; #------------------------ Compute the Average of Tries about one problem - my $Average = ($StdNo) ? $TotalTries/$StdNo : 0; + 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; + $storestats{$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; + 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 ); - } + 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 ); + 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; + $storestats{$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; - } -#----------------- 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 ); - - $CachData{($p_count-1)}=$Temp.':'.$StdNo.':'.$TotalTries.':'. - $MxTries.':'.$Avg.':'.$YES.':'. - $Override.':'.$Wrng.':'.$SD.':'. - $Sk.':'.$DoD.':'.$Map.':'.$Prob; - - $urlres=~/^(\w+)\/(\w+)/; - if ($StdNo) { - &Apache::lonnet::put('resevaldata',\%storestats,$1,$2); - } + 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,$Up2)=split(/\:/,':');#jason$DisUp->{$lpr[$i]}); + my ($Lw1,$Lw2)=split(/\:/,':');#jason$DisLow->{$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 ) { - $r->print( "\n".''.$Pre.'---'.$Post); + &TableRow($cache,$Post,$i,$nIndex); + $nIndex++; + } + &CloseTable($cache); + } + } + else { + &CreateProblemStatisticsTableHeading($cache,0); + for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) { + my($Pre, $Post) = split(/\@/,$list[$nIndex]); + &TableRow($cache,$Post,$nIndex,$nIndex); + } + &CloseTable($cache); + } +} +=cut +sub TableRow { + my ($cache,$Str,$Idx,$RealIdx)=@_; + my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, + $Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$Prob)=split(/\&/,$Str); + if($cache->{'DisplayFormat'} eq 'Display CSV Format') { + my ($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".'
| '; + $Ptr .= '#Stdnts: | '; + $Ptr .= 'Total Number of Students opened the problem.'; + $Ptr .= ' |
| '; + $Ptr .= 'Tries: | '; + $Ptr .= 'Total Number of Tries for solving the problem.'; + $Ptr .= ' |
| '; + $Ptr .= 'Mod: | '; + $Ptr .= 'Maximunm Number of Tries for solving the problem.'; + $Ptr .= ' |
| '; + $Ptr .= 'Mean: | '; + $Ptr .= 'Average Number of the tries. [ Tries / #Stdnts ]'; + $Ptr .= ' |
| '; + $Ptr .= '#YES: | '; + $Ptr .= 'Number of students solved the problem correctly.'; + $Ptr .= ' |
| '; + $Ptr .= '#yes: | '; + $Ptr .= 'Number of students solved the problem by override.'; + $Ptr .= ' |
| '; + $Ptr .= '%Wrng: | '; + $Ptr .= 'Percentage of students tried to solve the problem '; + $Ptr .= 'but still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]'; + $Ptr .= ' |
| ';
+# Kashy formula
+# ' DoDiff : Degree of Difficulty of the problem. '. +# '[ Tries/(#YES+#yes+0.1) ] '. + #Gerd formula + $Ptr .= 'DoDiff: | ';
+ $Ptr .= 'Degree of Difficulty of the problem. '; + $Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]'; + $Ptr .= ' |
| '; + $Ptr .= 'S.D.: | '; + $Ptr .= 'Standard Deviation of the tries. '; + $Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) '; + $Ptr .= 'where Xi denotes every student\'s tries ]'; + $Ptr .= ' |
| '; + $Ptr .= 'Skew.: | '; + $Ptr .= 'Skewness of the students tries.'; + $Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]'; + $Ptr .= ' |
| '; + $Ptr .= 'Dis.F.: | '; + $Ptr .= 'Discrimination Factor: A Standard for evaluating the ';
+ $Ptr .= 'problem according to a Criterion '; + $Ptr .= '[Applied Criterion in %27 Upper Students - '; + $Ptr .= 'Applied the same Criterion in %27 Lower Students] '; + $Ptr .= '1st Criterion for Sorting the Students: '; + $Ptr .= 'Sum of Partial Credit Awarded / Total Number of Tries '; + $Ptr .= '2nd Criterion for Sorting the Students: '; + $Ptr .= 'Total number of Correct Answers / Total Number of Tries'; + $Ptr .= ' |
Select number of intervals'."\n". + ''."\n"; + + return $Ptr; } +sub OptionResponseTable { + my ($cache)=@_; + my $Str = ''; + $Str .= '
Option Response Problems in this course:'."\n"; + $Str .= '
'."\n"; + $Str .= "
| \# | Problem Title | "; + $Str .= 'Resource | Analysis |
|---|---|---|---|
| '.$number.' | '; + $Str .= ''.$Temp.' | '; + $Str .= ''.$uri.' | '; + $Str .= '
'); - $section{$ssec}=$ssec; - if ($CurSec eq 'All Sections' || $ssec eq $CurSec) { - $students[$StudNo]=$name; - $StuBox{$sname}=$ssec; - } - $StudNo++; - } - } - else { - $r->print('
Could not access course data
'); - } - $r->print("Total number of students : ".($#students+1)); - $r->rflush(); -# --------------- Find all assessments and put them into some linear-like order - &tracetable($firstres,'&'.$lastres.'&'); +#---- Student Assessment Web Page -------------------------------------------- -#my $c=0; -#foreach(@mapsort) { -# $c++; -# $r->print(''.$mapsort[$c]); -#} -#$r->print('
Count = '.$c); +sub MapOptions { + my ($cache, $page)=@_; + my $Ptr = '