--- loncom/interface/lonstatistics.pm 2002/05/31 13:47:01 1.25 +++ loncom/interface/lonstatistics.pm 2006/05/01 05:39:44 1.130 @@ -1,7 +1,6 @@ # The LearningOnline Network with CAPA -# (Publication Handler # -# $Id: lonstatistics.pm,v 1.25 2002/05/31 13:47:01 minaeibi Exp $ +# $Id: lonstatistics.pm,v 1.130 2006/05/01 05:39:44 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -26,1708 +25,1249 @@ # http://www.lon-capa.org/ # # (Navigate problems for statistical reports -# YEAR=2001 -# 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei -# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei -# 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 -# 5/12,5/14,5/15,5/19,5/26 Behrouz Minaei # ### -package Apache::lonstatistics; +=pod -use strict; +=head1 NAME + +lonstatistics + +=head1 SYNOPSIS + +Main handler for statistics and chart. + +=over 4 + +=cut + +package Apache::lonstatistics; + +use strict; use Apache::Constants qw(:common :http); -use Apache::lonnet(); +use vars qw( + @FullClasslist + @Students + @Sections + @Groups + %StudentData + @StudentDataOrder + @SelectedStudentData + $enrollment_status); + +use Apache::lonnet; use Apache::lonhomework; use Apache::loncommon; -use HTML::TokeParser; -use GDBM_File; +use Apache::loncoursedata; +use Apache::lonhtmlcommon; +use Apache::lonmysql; +use Apache::lonlocal; +use Time::HiRes; +# +# Statistics Packages +use Apache::lonproblemanalysis(); +use Apache::lonsubmissiontimeanalysis(); +use Apache::loncorrectproblemplot(); +use Apache::lonproblemstatistics(); +use Apache::lonstudentassessment(); +use Apache::lonpercentage; +use Apache::lonstudentsubmissions(); +use Apache::lonsurveyreports(); +use Apache::longradinganalysis(); -# -------------------------------------------------------------- Module Globals -my %hash; -my %CachData; -my %GraphDat; -my %OpResp; -my %maps; -my %mapsort; -my %section; -my %StuBox; -my %DiscFac; -my %DisUp; -my %DisLow; -my $UpCnt; -my $CurMap; -my $CurSec; -my $CurStu; -my @cols; -my @list; -my @students; -my $p_count; -my $Pos; -my $r; -my $OpSel1; -my $OpSel2; -my $OpSel3; -my $OpSel4; -my $GData; -my $cid; -my $firstres; -my $lastres; -my $DiscFlag; -my $HWN; -my $P_Order; -my %color; -my %foil_to_concept; -my @Concepts; -my %ConceptData; -my %Header = (0,"Homework Sets Order",1,"#Stdnts",2,"Tries",3,"Mod", - 4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"DoDiff", - 9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd"); -my %Answer = (); - - -sub Activity { - my $file="/home/minaeibi/minaei"; - my $userid='billskat'; - $r->print("
Using $file"); - $r->rflush(); - open(FILEID, "<$file"); - my $line; - my @allaccess; - my $Count=0; - while ($line=) { - my ($time,$machine,$what)=split(':',$line); - $what=&Apache::lonnet::unescape($what); - my @accesses=split('&',$what); - foreach my $access (@accesses) { - my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); - if ($who ne $userid) { next; } - if (!$resource) { next; } - my $res=&Apache::lonnet::unescape($resource); - #if (($key=~/\.(\w+)\.(\w+)\.submission$/)) { - #if ($meta=~/\.(problem|exam|quiz|assess|survey|form)$/) { - # foreach my $Key(split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { - # if ($Key=~/^stores\_(\w+)\_tries$/) { - - # if (($res =~ /^\/res\/adm/)) { - $Count++; - $r->print("
$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) { -# $r->print("
Sent data ".join(':',unescape(@posts)).''); -# } -# } -} +####################################################### +####################################################### +=pod +=item Package Variables -sub InitAnalysis { - my ($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 $symb; -} +=item @FullClasslist The full classlist +=item @Students The students we are concerned with for this invocation -sub Interval { - my ($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.$i.false"}=0; - } - } -} +=item @Sections The sections available in this class +=item @Groups The groups available in the class -sub ShowOpGraph { - my ($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"); -} +=item $curr_student The student currently being examined +=item $prev_student The student previous in the classlist -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".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''; - - for (my $n=0; $n<=$#Concepts; $n++ ) { - $Str .= "\n"."". - "\n"."". - "\n".'". - "\n".'". - "\n".'". - "\n".""; - } - $Str.='"; +=item $next_student The student next in the classlist - $Str .= "\n".'
# Concept Correct Wrong
".($n+1)." '.$Concepts[$n]." '.$data1[$n]." '.$data2[$n]."
From:['.localtime($ConceptData{'Int.'.$k}). - '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1). - "]$Correct$Wrong
'; +=over - $r->print($Str); -#$Apache::lonxml::debug=1; -#&Apache::lonhomework::showhash(%ConceptData); -#$Apache::lonxml::debug=0; -} +=cut +####################################################### +####################################################### +# +# Classlist variables +# +my $curr_student; +my $prev_student; +my $next_student; -sub DrawGraph { - my ($k,$Src)=@_; - 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.$k.true"}; - $data2[$n]=$ConceptData{"$tmp.$k.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 = $#data1+1; +####################################################### +####################################################### - if ( $Max > 1 ) { - $Max += (10 - $Max % 10); - $Max = int($Max); - } else { $Max = 1; } - - my $Titr=($ConceptData{'Interval'}>1) ? $Src.'_interval_'.($k+1) : $Src; -# $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2; - $GData="$Titr&Concepts&Answers&$Max&$P_No&". - (join(',',@data1)).'&'.(join(',',@data2)); +=pod - $r->print(''); -} +=item &clear_classlist_variables() +undef the following package variables: -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".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''; - - my $P_No=1; - foreach (sort keys %OpResp) { - my ($rid,$part)=split(/\:/,$OpResp{$_}); - my $Temp = ''.$hash{'title_'.$rid}.''; - $Str .= "\n"."". - "\n"."". - "\n"."". - "\n"."". - "\n"."'. - "\n".""; - $P_No++; - } - $Str .= "\n".'
# Problem Title Resource Address
$P_No ".$Temp." ".$hash{'src_'.$rid}." ".''.'
'; - $Str .= "\n".''; - $r->print($Str); - $r->rflush(); -} +=over +=item @FullClasslist -sub Decide { - #deciding the true or false answer belongs to each interval - my ($type,$foil,$time)=@_; - my $k=0; - while ($time>$ConceptData{'Int.'.($k+1)} && - $k<$ConceptData{'Interval'}) {$k++;} - $ConceptData{"$foil_to_concept{$foil}.$k.$type"}++; -} +=item @Students +=item @Sections -#restore the student submissions and finding the result -sub OpStatus { - my ($rid,$student)=@_; - my ($uname,$udom)=split(/\:/,$student); - my $code='U'; - $rid=~/(\d+)\.(\d+)/; - my $symb=&Apache::lonnet::declutter($hash{'map_id_'.$1}).'___'.$2.'___'. - &Apache::lonnet::declutter($hash{'src_'.$rid}); - my %reshash=&Apache::lonnet::restore($symb,$cid,$udom,$uname); - my @True = (); - my @False = (); - my $flag=0; - if ($reshash{'version'}) { - my $tries=0; - &Apache::lonhomework::showhash(%Answer); - for (my $version=1;$version<=$reshash{'version'};$version++) { - my $time=$reshash{"$version:timestamp"}; - - foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) { - if (($key=~/\.(\w+)\.(\w+)\.submission$/)) { - my $Id1 = $1; my $Id2 = $2; - #check if this is a repeat submission, if so skip it - if ($reshash{"$version:resource.$Id1.previous"}) { next; } - #if no solved this wasn't a real submission, ignore it - if (!defined($reshash{"$version:resource.$Id1.solved"})) { - &Apache::lonxml::debug("skipping "); - next; - } - my $Resp = $reshash{"$version:$key"}; - my %submission=&Apache::lonnet::str2hash($Resp); - foreach (keys %submission) { - my $Ansr = $Answer{"$Id1.$Id2.foil.value.$_"}; - if ($submission{$_}) { - if ($submission{$_} eq $Ansr) { - &Decide("true",$_,$time ); - } - else {&Decide("false",$_,$time );} - } - } - } - } - } - } -} +=item @Groups +=item %StudentData -#------- Processing upperlist and lowerlist according to each problem -sub ProcessDisc { - my @List = @_; - @List = sort (@List); - my $Count = $#List+1; - my $Prb; - my @Dis; - my $Slvd=0; - my $tmp; - my $Sum1=0; - my $Sum2=0; - my $nIdx=0; - my $nStud=0; - my %Proc; - undef %Proc; - while ($nIdx<$Count) { - ($Prb,$tmp)=split(/\=/,$List[$nIdx]); - @Dis=split(/\+/,$tmp); - my $Temp = $Prb; - do { - $nIdx++; - $nStud++; - $Sum1 += $Dis[0]; - $Sum2 += $Dis[1]; - ($Prb,$tmp)=split(/\=/,$List[$nIdx]); - @Dis=split(/\+/,$tmp); - } while ( $Prb eq $Temp && $nIdx < $Count ); -# $Proc{$Temp}=($Sum1/$nStud).':'.$nStud; - $Proc{$Temp}=($Sum1/$nStud).':'.($Sum2/$nStud); -# $r->print("$nIdx) $Temp --> ($nStud) $Proc{$Temp}
"); - $Sum1=0; - $Sum2=0; - $nStud=0; - } - return %Proc; -} +=item @StudentDataOrder +=item @SelectedStudentData -#------- 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); -} +=item $curr_student + +=item $prev_student + +=item $next_student + +=back - -sub NumericSort { - $a <=> $b; +=cut + +####################################################### +####################################################### +sub clear_classlist_variables { + undef(@FullClasslist); + undef(@Students); + undef(@Sections); + undef(@Groups); + undef(%StudentData); + undef(@SelectedStudentData); + undef($curr_student); + undef($prev_student); + undef($next_student); } -# ------ 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 $Str = "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''; - my ($temp)=keys(%result); - unless ($temp=~/^(con_lost|error|no_such_host)/i) { - foreach my $CurCol (@cols) { - if (!$CurCol){ - my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1}); - if ( $Set ) { - $SetNo++; - $Str .= "\n"."". - "\n"."". - "\n"."". - "\n"."". - "\n"."". - "\n".""; - } - $PtrTry=''; - $PtrCod=''; - next; - } - ($PrOrd,$ResId)=split(/\:/,$CurCol); - $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 $PartNo = 0; - undef %TempHash; - foreach (split(/\,/,&Apache::lonnet::metadata($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"} = '-'; - $TempHash{"$Part.PrOrd"} = $PrOrd+$PartNo; - $PartNo++; - } - } - } +####################################################### +####################################################### + +=pod + +=item &PrepareClasslist() + +Build up the classlist information. The classlist information is kept in +the following package variables: + +=over + +=item @FullClasslist + +=item @Students + +=item @Sections + +=item @Groups + +=item %StudentData + +=item @SelectedStudentData + +=item $curr_student + +=item $prev_student - my $Prob = $Map.'___'.$2.'___'. - &Apache::lonnet::declutter( $hash{'src_'.$ResId} ); - $Code='U'; - $Tries = 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"}; - $TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0; - $TotalTries += $Tries; - my $Val = $result{"$Version:$Prob:resource.$Part.solved"}; - if ( $Val eq 'correct_by_student' ) - { $Wrongs = $Tries - 1; $Code = 'Y'; } - elsif ( $Val eq 'correct_by_override' ) - { $Wrongs = $Tries - 1; $Code = 'y'; } - elsif ( $Val eq 'incorrect_attempted' || - $Val eq 'incorrect_by_override' ) - { $Wrongs = $Tries; $Code = 'N'; } - $TempHash{"$Part.Code"} = $Code; - $TempHash{"$Part.Wrongs"} = $Wrongs; - } - } +=item $next_student + +=back + +$curr_student, $prev_student, and $next_student may not be defined, depending +upon the calling context. + +=cut + +####################################################### +####################################################### +sub PrepareClasslist { + my %Sections; + &clear_classlist_variables(); + # + # Retrieve the classlist + my $cid = $env{'request.course.id'}; + my $cdom = $env{'course.'.$cid.'.domain'}; + my $cnum = $env{'course.'.$cid.'.num'}; + my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cdom, + $cnum); + my @selected_sections = &get_selected_sections(); + my @selected_groups = &get_selected_groups(); + # + # Deal with instructors with restricted section access + if ($env{'request.course.sec'} !~ /^\s*$/) { + @selected_sections = ($env{'request.course.sec'}); + } + # + # Set up %StudentData + @StudentDataOrder = qw/fullname username domain id section status groups comments/; + foreach my $field (@StudentDataOrder) { + $StudentData{$field}->{'title'} = &mt($field); + $StudentData{$field}->{'base_width'} = length(&mt($field)); + $StudentData{$field}->{'width'} = + $StudentData{$field}->{'base_width'}; + } + # + # get the status requested + $enrollment_status = 'Active'; + $enrollment_status = $env{'form.Status'} if (exists($env{'form.Status'})); + # + # Get groupmembership + my (%curr_groups,$classgroups,$studentgroups); + my $numgroups = &Apache::loncommon::coursegroups(\%curr_groups,$cdom,$cnum); + if ($numgroups) { + ($classgroups,$studentgroups) = + &Apache::loncoursedata::get_group_memberships($classlist, + $cdom,$cnum); + } + my $now = time; + + # Process the classlist + while (my ($student,$student_data) = each (%$classlist)) { + my $studenthash = (); + for (my $i=0; $i< scalar(@$field_names);$i++) { + my $field = $field_names->[$i]; + # Store the data + $studenthash->{$field}=$student_data->[$i]; + # Keep track of the width of the fields + next if (! exists($StudentData{$field})); + my $length = length($student_data->[$i]); + if ($StudentData{$field}->{'width'} < $length) { + $StudentData{$field}->{'width'} = $length; + } + } + my @studentsgroups = &Apache::loncoursedata::get_students_groups + ($student,$enrollment_status, + $classgroups); + if (@studentsgroups) { + $studenthash->{'groups'} = join(', ',@studentsgroups); + $studenthash->{'groupref'} = \@studentsgroups; + } else { + $studenthash->{'groups'} = 'none'; + $studenthash->{'groupref'} = []; + } + push (@FullClasslist,$studenthash); + # + # Build up a list of sections + my $section = $studenthash->{'section'}; + if (! defined($section) || $section =~/^\s*$/ || $section == -1) { + $studenthash->{'section'} = 'none'; + $section = $studenthash->{'section'}; + } + $Sections{$section}++; + # + # Only put in the list those students we are interested in + foreach my $sect (@selected_sections) { + if ( (($sect eq 'all') || + ($section eq $sect)) && + (($studenthash->{'status'} eq $enrollment_status) || + ($enrollment_status eq 'Any')) + ){ + my $groupcheck = 0; + if (grep/^all$/,@selected_groups) { + push (@Students,$studenthash); + last; + } elsif (grep/^none$/,@selected_groups) { + if ($studenthash->{'groups'} eq 'none') { + push (@Students,$studenthash); + last; + } + } else { + foreach my $group (@selected_groups) { + if (grep/^$group$/,@studentsgroups) { + push (@Students,$studenthash); + $groupcheck = 1; + last; + } + } + if ($groupcheck) { + last; + } } - for ( my $n = 0; $n < $PartNo; $n++ ) { - my $part = $TempHash{$n}; - if ($PtrTry ne '') {$PtrTry .= ',';} - $PtrTry .= "$TempHash{$part.'.Tries'}"; - $PtrCod .= "$TempHash{$part.'.Code'}"; - } } - else { - for(my $n=0; $n<$PartNo; $n++) { - if ($PtrTry ne '') {$PtrTry .= ',';} - $PtrTry .= "0"; - $PtrCod .= "-"; - } - } } } - $Str .= "\n".'
# Set Title Results Tries
$SetNo $Set $PtrCod $PtrTry
'; - $r->print($Str); - $r->rflush(); -} - -sub CreateTable { - my ($Hd, $Hid)=@_; - if ($ENV{'form.showcsv'}) { - if ( $Hd == 1 ) { - $r->print('
"'.$hash{'title_'.$Hid}.'","'.$hash{'src_'.$Hid}.'"'); - } - return; + # + # Put the consolidated section data in the right place + if ($env{'request.course.sec'} !~ /^\s*$/) { + @Sections = ($env{'request.course.sec'}); + } else { + @Sections = sort {$a cmp $b} keys(%Sections); + unshift(@Sections,'all'); # Put 'all' at the front of the list + } + # Sort the groups + @Groups = sort {$a cmp $b} keys(%{$studentgroups}); + unshift(@Groups,'all'); # Put 'all' at the front of the list + + # + # Sort the Students + my $sortby = 'fullname'; + $sortby = $env{'form.sort'} if (exists($env{'form.sort'})); + my @TmpStudents = sort { lc($a->{$sortby}) cmp lc($b->{$sortby}) || + lc($a->{'fullname'}) cmp lc($b->{'fullname'}) || + lc($a->{'username'}) cmp lc($b->{'username'}) } @Students; + @Students = @TmpStudents; + # + # Now deal with that current student thing.... + $curr_student = undef; + if (exists($env{'form.SelectedStudent'})) { + my ($current_uname,$current_dom) = + split(':',$env{'form.SelectedStudent'}); + my $i; + for ($i = 0; $i<=$#Students; $i++) { + next if (($Students[$i]->{'username'} ne $current_uname) || + ($Students[$i]->{'domain'} ne $current_dom)); + $curr_student = $Students[$i]; + last; # If we get here, we have our student. + } + if (defined($curr_student)) { + if ($i == 0) { + $prev_student = undef; + } else { + $prev_student = $Students[$i-1]; + } + if ($i == $#Students) { + $next_student = undef; + } else { + $next_student = $Students[$i+1]; + } + } } - my $ColNo=0; - foreach (keys(%Header)){ - $ColNo++; - } - if ( $Hd == 1 ) { - $r->print('
'.$hash{'title_'.$Hid}.''); - } - my $Result = "\n".''; - $Result .= ''."\n"; - for ( my $nIdx=0; $nIdx < $ColNo; $nIdx++ ) { - $Result .= ''."\n"; + # + if (exists($env{'form.StudentData'})) { + @SelectedStudentData = + &Apache::loncommon::get_env_multiple('form.StudentData'); + } else { + @SelectedStudentData = ('username'); } - $Result .= "\n".''."\n"; - $r->print( $Result ); - $r->rflush(); + foreach (@SelectedStudentData) { + if ($_ eq 'all') { + @SelectedStudentData = ('all'); + last; + } + } + # + return; } -sub CloseTable { - if ($ENV{'form.showcsv'}) { - return; - } - $r->print("\n".'
P#'.''.'
'."\n"); - $r->rflush(); -} - -# ------------------------------------------- Prepare Statistics Table -sub PreStatTable { - - my $CacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}". - "_$ENV{'user.domain'}_$cid\_statistics.db"; - my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}". - "_$ENV{'user.domain'}_$cid\_graph.db"; - my $OpSel11=''; - my $OpSel12=''; - my $OpSel13=''; - my $Status = $ENV{'form.status'}; - if ( $Status eq 'Any' ) { $OpSel13='selected'; } - elsif ($Status eq 'Expired' ) { $OpSel12 = 'selected'; } - else { $OpSel11 = 'selected'; } - - my $Ptr = ''; - $Ptr .= '
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.
'. - ' 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'. - '
'; +####################################################### +####################################################### - $r->print($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"); - } - } +=pod -# $r->print('Total instances of the problems : '.($p_count*($#students+1))); - untie(%CachData); - untie(%GraphDat); -} +=item get_selected_sections +Returns an array of the selected sections -# ------------------------------------- Find the section of student in a course +=cut -sub usection { - my ($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 $section; +####################################################### +####################################################### +sub get_selected_sections { + my @selected_sections = + &Apache::loncommon::get_env_multiple('form.Section'); + @selected_sections = ('all') if (! @selected_sections); + foreach (@selected_sections) { + if ($_ eq 'all') { + @selected_sections = ('all'); + } + } + # + # Deal with instructors with restricted section access + if ($env{'request.course.sec'} !~ /^\s*$/) { + @selected_sections = ($env{'request.course.sec'}); + } + return @selected_sections; +} + +####################################################### +####################################################### + +=pod + +=item get_selected_groups + +Returns an array of the selected groups + +=cut + +####################################################### +####################################################### +sub get_selected_groups { + my @selected_groups = + &Apache::loncommon::get_env_multiple('form.Group'); + @selected_groups = ('all') if (! @selected_groups); + foreach my $grp (@selected_groups) { + if ($grp eq 'all') { + @selected_groups = ('all'); + last; } } - return '-1'; + return @selected_groups; } + +=pod +=item §ion_and_enrollment_description -# ------ 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'); - } - } - &Apache::lonnet::declutter( $hash{'src_'.$ResId} ); - my $URI = $hash{'src_'.$ResId}; - my $Prob = $Map.'___'.$PrbId.'___'. - &Apache::lonnet::declutter($URI); - $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"}; - 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}"; - my $ptr = $TempHash{$part.'.PrOrd'}.'&'.$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"};33333333 - $TimeTot += $TempHash{"$part.Time"}; - $Dis .= $TempHash{$part.'.PrOrd'}.'='.$DisF.'+'.$Yes; - $ptr .= "&$TempHash{$part.'.Tries'}". - "&$TempHash{$part.'.Wrongs'}". - "&$TempHash{$part.'.Code'}"; - push (@list, $ptr); - $TotalOpend++; - $ProbTot++; - } - } - #else { - #for(my $n=0; $n<$PartNo; $n++) { - # push (@list, "$TempHash{'0'.'.PrOrd'}.':'.$ResId:0:0:U"); - # $ProbTot++; - #} - #} - } - if ( $TotalTries ) { - my $DisFac = ( $TotalTries ) ? ($TotParCr/$TotalTries) : 0; - my $DisFactor = sprintf( "%.4f", $DisFac ); - $DiscFac{$DisFactor}=$Dis; - #my $time; - #if ($ProbSolved){ - #$time = int(($TimeTot/$ProbSolved)-10000000); - #} - #$DiscFac{($DisFactor.':'.$sname.':'.$ProbTot.':'.$TotalOpend.':'. - # $TotalTries.':'.$ProbSolved.':'.$time)}=$Dis; - } +Returns a string describing the currently selected section(s), group(s) and +enrollment status. + +Inputs: mode = 'plaintext' or 'localized' (defaults to 'localized') + 'plaintext' is used for example in Excel spreadsheets. +Returns: scalar description string. + +=cut + +####################################################### +####################################################### +sub section_and_enrollment_description { + my ($mode) = @_; + if (! defined($mode)) { $mode = 'localized'; } + my @sections = &Apache::lonstatistics::get_selected_sections(); + my @groups = &Apache::lonstatistics::get_selected_groups(); + my $description; + if ($mode eq 'localized') { + $description = &mt('Unable to determine section, groups and enrollment'); + } elsif ($mode eq 'plaintext') { + $description = 'Unable to determine section, groups and enrollment'; + } else { + $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description'; + &Apache::lonnet::logthis($description); } - #$r->print($sname.' PrCr= '.$TotParCr.' Slvd= '.$ProbSolved.' Tries='.$TotalTries.'
'); + $description = §ion_or_group_text($mode,'section',@sections). + ' '.§ion_or_group_text($mode,'group',@groups); + if ($mode eq 'localized') { + $description .= &mt(' [_1] enrollment status.',$env{'form.Status'}); + } elsif ($mode eq 'plaintext') { + $description .= ' '.$env{'form.Status'}.' enrollment status.'; + } + return $description; +} + +####################################################### +####################################################### + +sub section_or_group_text { + my ($mode,$type,@items) = @_; + my $text; + my %phrases = (); + %{$phrases{'section'}} = ( + single => 'Section', + all => 'All sections', + plural => 'Sections', + ); + %{$phrases{'group'}} = ( + single => 'Group', + all => 'All groups', + plural => 'Groups', + ); + if (scalar(@items) == 1 && $items[0] ne 'all') { + if ($mode eq 'localized') { + $text = &mt('[_1] [_2].',$phrases{$type}{single},$items[0]); + } elsif ($mode eq 'plaintext') { + $text = $phrases{$type}{single}.' '.$items[0].'.'; + + } + } elsif (scalar(@items) && $items[0] eq 'all') { + if ($mode eq 'localized') { + $text = &mt('[_1].',$phrases{$type}{all}); + } elsif ($mode eq 'plaintext') { + $text = $phrases{$type}{all}.'.'; + } + } elsif (scalar(@items)) { + my $lastitem = pop(@items); + if ($mode eq 'localized') { + $text = &mt('[_1] [_2] and [_3].',$phrases{$type}{plural}, + join(', ',@items),$lastitem); + } elsif ($mode eq 'plaintext') { + $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '. + $lastitem.'.'; + } + } + return $text; } +=pod -# ------------------------------------------------------------ Build page table -sub tracetable { - my ($rid,$beenhere)=@_; - my $IsMap=0; - $rid=~/(\d+)\.(\d+)/; - $maps{&Apache::lonnet::declutter($hash{'map_id_'.$1})}='';#$hash{'title_'.$rid}; - #$maps{$HWN}=$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; - $P_Order++; - $HWN=$P_Order; - $mapsort{$HWN} = $rid.':'; - $IsMap=1; - - #$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}}; +=item get_students - &tracetable($hash{'map_start_'.$hash{'src_'.$rid}}, - '&'.$frid.'&'); +Returns a list of the selected students - $cols[$#cols+1]=($P_Order+1).':'.$frid; - - my $meta=$hash{'src_'.$frid}; - my $PartNo = 0; - my $Part; - # if ($IsMap==0){ - if ($meta) { - if ($meta=~/\.(problem|exam|quiz|assess|survey|form)$/) { - foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { - if ($_=~/^stores\_(\w+)\_tries$/) { - $Part=&Apache::lonnet::metadata($meta,$_.'.part'); - $P_Order++; - $mapsort{$HWN} .= '&'.$P_Order; - $PartNo++; - #$r->print('
'.$PartNo.'---'.$P_Order); - } - foreach my $K(split(/\,/,&Apache::lonnet::metadata($meta,'packages'))) { - if ($K=~/^optionresponse\_($Part)\_(\w+)$/) { - #$r->print('
'.$_.'...'.$P_Order.'---'.$Part); - $OpResp{$P_Order}="$frid:$Part"; - } - } - } - } - } - } - # } - } else { - $cols[$#cols+1]=($P_Order+1).':'.$rid; - my $meta=$hash{'src_'.$rid}; - my $PartNo = 0; - if ($meta) { - if ($meta=~/\.(problem|exam|quiz|assess|survey|form)$/) { - foreach my $Key(split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { - if ($Key=~/^stores\_(\w+)\_tries$/) { - my $Part=&Apache::lonnet::metadata($meta,$Key.'.part'); - $P_Order++; - $mapsort{$HWN} .= '&'.$P_Order; - $PartNo++; - foreach (split(/\,/,&Apache::lonnet::metadata($meta,'packages'))) { - if ($_=~/^optionresponse\_($Part)\_(\w+)$/) { - #$r->print('
'.$_.'...'.$P_Order.'---'.$Part); - $OpResp{$P_Order}="$rid:$Part";; - } - - } - - } - } - } - } - } - if (defined($hash{'to_'.$rid})) { - foreach (split(/\,/,$hash{'to_'.$rid})){ - &tracetable($hash{'goesto_'.$_},$beenhere); - } - } - } -} +=cut -sub MySort { - if ( $Pos > 0 ) { - if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;} - else { $a <=> $b; } - } - else { - if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;} - else { $a cmp $b; } +####################################################### +####################################################### +sub get_students { + if (! @Students) { + &PrepareClasslist() } + return @Students; } -sub Create_PrgWin { -#----------- Create progress - $r->print(< - popwin=open('','popwin','width=400,height=100'); - popwin.document.writeln(''+ - 'LON-CAPA Statistics'+ - '

Computation Progress

'+ - '
'+ - '
'+ - ''); - popwin.document.close(); - -ENDPOP +####################################################### +####################################################### - $r->rflush(); -} +=pod +=item ¤t_student() -sub Update_PrgWin { -#----------- update progress - my $index = shift; - $r->print(''); - $r->rflush(); +Returns a pointer to a hash containing data about the currently +selected student. + +=cut + +####################################################### +####################################################### +sub current_student { + return $curr_student; } -sub Close_PrgWin { -#--------------------- close Progress Line - $r->print(''); - $r->rflush(); +####################################################### +####################################################### + +=pod + +=item &previous_student() + +Returns a pointer to a hash containing data about the student prior +in the list of students. Or something. + +=cut + +####################################################### +####################################################### +sub previous_student { + return $prev_student; } -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(); +####################################################### +####################################################### + +=pod + +=item &next_student() + +Returns a pointer to a hash containing data about the next student +to be viewed. + +=cut + +####################################################### +####################################################### +sub next_student { + return $next_student; } -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('
'.$Pre.'---'.$Post); - &TableRow($Post,$i,$nIdx); - $nIdx++; - } - &CloseTable(); - } +############################################## +############################################## + +=pod + +=item &StudentDataSelect($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; } - else { - &CreateTable(0); - for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) { - my($Pre, $Post) = split(/\@/,$list[$nIdx]); - &TableRow($Post,$nIdx,$nIdx); - } - &CloseTable(); + # + # Build the form element + my $Str = "\n"; + $Str .= '\n"; + return $Str; } -# ------------------------------------------- Prepare data for Graphical chart +####################################################### +####################################################### -sub GetGraphData { - my $ylab = shift; - 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; - $GData=$Course.'&'.'Problems'.'&'.$ylab.'&'.$Max.'&'.$count.'&'.$data; - } - else { - $r->print("Unable to tie hash to db file"); - } - } -} +=pod +=item &get_selected_maps($elementname) -sub initial { -# --------------------------------- Initialize the global varaibles - undef @students; - undef @cols; - undef %maps; - undef %section; - undef %StuBox; - undef @list; - undef %CachData; - undef %GraphDat; - undef %DiscFac; - undef %OpResp; - undef %ConceptData; - undef $CurMap; - undef $CurSec; - undef $CurStu; - undef $p_count; - undef $Pos; - undef $GData; - $DiscFlag=0; - $P_Order=100000; - $HWN=$P_Order; - &setbgcolor(0); -} +Input: Name of the '; - $Ptr .= '

'; - $Ptr .= ''; - $Ptr .= '

'; - $Ptr .= ''; - $Ptr .= ''; - #$Ptr .= ''; - $r->print( $Ptr ); - } - else { - &ClassList(); - if ( $content eq 'Student Assessment' || - $content eq 'Create Student Report' ) { - &MapSecOptions(); - &StudentOptions(); - &StudentReport($CurStu,$StuBox{"$CurStu"}); - } - elsif ( $content eq 'Problem Analysis' ) { - &AnalyzeProblem(); - } - else { - &MapSecOptions(); - &PreStatTable(); - } - } -} +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 -sub Menu { - &initial(); -# $Apache::lonxml::debug=1; -# &Apache::lonhomework::showhash(%ENV); -# $Apache::lonxml::debug=0; - &Title(); - my $InpStr = $ENV{'form.sort'}; - if ($InpStr eq 'Activity Log') { - &Activity(); - } - elsif ($InpStr=~/^Analyze\_/) { - &ClassList(); - &ShowOpGraph($InpStr,$ENV{'form.interval'}); - } - elsif ( $InpStr eq 'DoDiff Graph' || $InpStr eq '%Wrong Graph' ) { - &GetGraphData($InpStr); - $r->print(''); - } - else { - &CreateForm(); - $r->print("\n".''); +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=back + +=cut + +############################################## +############################################## +sub map_select { + my ($elementname,$status,$numvisible)=@_; + if ($numvisible < 1) { + return; } - $r->print("\n".''. - "\n".''); - $r->rflush(); + # + # Set up array of selected items + my @selected_maps = &get_selected_maps($elementname); + # + # Build the form element + my $form = "\n"; + $form .= '\n"; + return $form; } +############################################## +############################################## -sub StudentOptions { - my $OpSel5=''; - $CurStu = $ENV{'form.student'}; - if ( $CurStu eq '' ) { - $CurStu = 'All Students'; - $OpSel5 = 'selected'; - } - my $Ptr =''; -# ----------------------------------- Loading the Students Combobox - $Ptr .= '
Select Student'."\n". - ''; - $Ptr .= '
'; - $r->print( $Ptr ); - $r->rflush(); -} +=pod + +=item &SectionSelect($elementname,$status,$numvisible) +Returns html for a selection box allowing the user to choose one (or more) +of the sections in the course. -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'; +Uses the package variables @Sections +=over 4 + +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=back + +=cut + +############################################## +############################################## +sub SectionSelect { + my ($elementname,$status,$numvisible)=@_; + if ($numvisible < 1) { + return; + } + # + # Make sure we have the data we need to continue + if (! @Sections) { + &PrepareClasslist() } + # + # Build the form element + my $Str = "\n"; + $Str .= '\n"; + return $Str; +} + +############################################## +############################################## + +=pod + +=item &GroupSelect($elementname,$status,$numvisible) + +Returns html for a selection box allowing the user to choose one (or more) +of the groups in the course. + +Uses the package variables @Groups +=over 4 + +=item $elementname The name of the HTML form element + +=item $status 'multiple' or 'single' selection box + +=item $numvisible The number of options to be visible + +=back + +=cut + +############################################## +############################################## +sub GroupSelect { + my ($elementname,$status,$numvisible)=@_; + if ($numvisible < 1) { + return; + } + # + # Make sure we have the data we need to continue + if (! @Groups) { + &PrepareClasslist(); + } + # + # Build the form element + my $Str = "\n"; + $Str .= '\n"; } -sub MapSecOptions { -# ----------------------------------- Loading the Maps Combobox - my $Ptr = '
'; - $Ptr .= ''; - $Ptr .= '
Select   Map     '."\n". - ''; - $Ptr .= '   '; - -# ----------------------------------- Loading the Sections Combobox - $Ptr .= '
Select Section'."\n". - ''; + $r->print($Str); + $r->rflush(); + # + my @Fields = ('fullname','username','domain','id','section','status','groups'); + # + $Str = ''; + my @selected_sections = &get_selected_sections(); + if (! @Students) { + if ($selected_sections[0] eq 'all') { + if (lc($env{'form.Status'}) eq 'any') { + $Str .= '

'. + &mt('There are no students in the course.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'active') { + $Str .= '

'. + &mt('There are no currently enrolled students in the course.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'expired') { + $Str .= '

'. + &mt('There are no previously enrolled students in the course.'). + '

'; + } + } else { + my $sections; + if (lc($env{'form.Status'}) eq 'any') { + $Str .= '

'. + &mt('There are no students in the selected sections.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'active') { + $Str .= '

'. + &mt('There are no currently enrolled students in the selected sections.'). + '

'; + } elsif (lc($env{'form.Status'}) eq 'expired') { + $Str .= '

'. + &mt('There are no previously enrolled students in the selected sections.'). + '

'; + } + } + $Str.= ''. + &mt('Click here to return to the chart').''; + $r->print($Str); + $r->rflush(); + return; } - $Ptr .= ''."\n"; - $r->print( $Ptr ); + # "Click" is asinine but it is probably not my place to change the world. + $Str .= '

Click on a students name or username to view their chart

'; + $Str .= '
'."\n"; + $Str .= ''."\n"; + foreach my $field (@Fields) { + $Str .= ''; + } + $Str .= ''."\n"; + # + my $alternate = 0; + foreach my $student (@Students) { # @Students is a package variable + my $sname = $student->{'username'}.':'.$student->{'domain'}; + if($alternate) { + $Str .= ''; + } else { + $Str .= ''; + } + $alternate = ($alternate + 1) % 2; + # + foreach my $field (@Fields) { + $Str .= ''; + } + $Str .= "\n"; + } + $Str .= '
'.&mt($field). + '
'; + if ($field eq 'fullname' || $field eq 'username') { + $Str .= ''; + $Str .= $student->{$field}.' '; + $Str .= ''; + } elsif ($field eq 'status') { + $Str .= &mt($student->{$field}); + } else { + $Str .= $student->{$field}; + } + $Str .= '
'."\n"; + # + $r->print($Str); $r->rflush(); + # + return; } +############################################## +############################################## +sub CreateMainMenu { + # + # Define menu data + my @reports = ({ internal_name => 'problem_statistics', + name => &mt('Overall Problem Statistics'), + short_description => + &mt('Student performance statistics on all problems.'), + }, + { internal_name => 'problem_analysis', + name => &mt('Detailed Problem Analysis'), + short_description => + &mt('Detailed statistics and graphs of student performance on problems.'), + }, + { internal_name => 'submissiontime_analysis', + name => &mt('Submission Time Plots'), + short_description => + &mt('Display and analysis of submission times on assessments.'), + }, + { internal_name => 'student_submission_reports', + name => &mt('Student Submission Reports'), + short_description => + &mt('Prepare reports of student submissions.'), + }, + { internal_name => 'survey_reports', + name => &mt('Survey Reports'), + short_description => + &mt('Prepare reports on survey results.'), + }, + { internal_name => 'correct_problems_plot', + name => &mt('Correct Problems Plot'), + short_description => + &mt('Display a histogram of student performance in the course.'), + }, +# { internal_name => 'grading_analysis', +# name => &mt('Detailed Grading Analysis'), +# short_description => +# &mt('Display statistics about who graded who.'), +# }, +# { internal_name => 'student_assessment', +# name => &mt('Problem Status Chart'), +# short_description => +# &mt('Brief view of each students performance in course.'), +# }, + # 'percentage' => 'Correct-problems Plot', + # 'activitylog' => 'Activity Log', + ); + # + # Create the menu + my $Str; + $Str .= '

'.&mt('Please select a report to generate').'

'; + foreach my $reportdata (@reports) { + $Str .='

'. + $reportdata->{'name'}."

\n"; + $Str .= ' '.(' 'x8).$reportdata->{'short_description'}. + "\n"; + } + $Str .="\n"; + # + return $Str; +} -# ================================================================ Main Handler - +############################################## +############################################## sub handler { - $r=shift; - - if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { -# ------------------------------------------- Set document type for header only - if ($r->header_only) { - if ($ENV{'browser.mathml'}) { - $r->content_type('text/xml'); - } - else { - $r->content_type('text/html'); - } - $r->send_http_header; - return OK; - } - my $requrl=$r->uri; -# ----------------------------------------------------------------- Tie db file - - undef %hash; - - if ($ENV{'request.course.fn'}) { - my $fn=$ENV{'request.course.fn'}; - if (-e "$fn.db") { - if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) { -# ------------------------------------------------------------------- Hash tied - $r->content_type('text/html'); - $r->send_http_header; - &Menu(); - } - else { - $r->content_type('text/html'); - $r->send_http_header; - $r->print('Coursemap undefined.'); - } -# ------------------------------------------------------------------ Untie hash - unless (untie(%hash)) { - &Apache::lonnet::logthis("WARNING: ". - "Could not untie coursemap $fn (browse)."); - } - -# -------------------------------------------------------------------- All done - return OK; -# ----------------------------------------------- Errors, hash could no be tied - } - } - else { - $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized"; - return HTTP_NOT_ACCEPTABLE; - } + my $r=shift; + my $c = $r->connection(); + # + # Check for overloading + my $loaderror=&Apache::lonnet::overloaderror($r); + if ($loaderror) { return $loaderror; } + $loaderror= + &Apache::lonnet::overloaderror($r, + $env{'course.'.$env{'request.course.id'}.'.home'}); + if ($loaderror) { return $loaderror; } + # + # Check for access + if (! &Apache::lonnet::allowed('vgr',$env{'request.course.id'})) { + $env{'user.error.msg'}= + $r->uri.":vgr:0:0:Cannot view grades for complete course"; + if (! &Apache::lonnet::allowed('vgr', + $env{'request.course.id'}.'/'.$env{'request.course.sec'})) { + $env{'user.error.msg'}= + $r->uri.":vgr:0:0:Cannot view grades with given role"; + return HTTP_NOT_ACCEPTABLE; + } } - else { - $ENV{'user.error.msg'}= - $r->uri.":vgr:0:0:Cannot view grades for complete course"; - - return HTTP_NOT_ACCEPTABLE; + # + # Send the header + &Apache::loncommon::no_cache($r); + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + if ($r->header_only) { return OK; } + # + # Extract form elements from query string + &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, + ['sort','reportSelected', + 'SelectedStudent']); + # + # Give the LON-CAPA page header + my $style = < + ul.sub_studentans { list-style-type: none } + ul.sub_correctans { list-style-type: none } + tr.even { background-color: \#CCCCCC } + td.essay { border: 1px solid gray; } + +ENDSTYLE + + $r->print(&Apache::loncommon::start_page('Course Statistics and Charts', + $style)); + $r->rflush(); + # + # Either print out a menu for them or send them to a report + &Apache::lonhtmlcommon::clear_breadcrumbs(); + &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics', + title=>'Statistics', + text =>'Statistics', + faq=>139, + bug=>'Statistics and Charts'}); + if (! exists($env{'form.reportSelected'}) || + $env{'form.reportSelected'} eq '') { + $r->print(&Apache::lonhtmlcommon::breadcrumbs + (undef,&mt('Statistics Main Page')). + &CreateMainMenu()); + } else { + # + if (! &Apache::lonmysql::verify_sql_connection()) { + my $serveradmin = $r->dir_config('lonAdmEMail'); + $r->print('

'. + &mt('Unable to connect to database!'). + '

'); + $r->print('

'. + &mt('Please notify the server administrator '). + ''.$serveradmin.'

'); + $r->print('

'. + &mt('Course Statistics and Charts cannot be '. + 'retrieved until the database is restarted. '. + 'Your data is intact but cannot be displayed '. + 'at this time.').'

'); + $r->print(&Apache::loncommon::end_page()); + return; + } + # + # Clean out the caches + if (exists($env{'form.ClearCache'})) { + &Apache::loncoursedata::delete_caches($env{'requres.course.id'}); + } + # + # Begin form output + $r->print('
print('method="post" action="/adm/statistics">'); + $r->rflush(); + # + my $GoToPage = $env{'form.reportSelected'}; + # + $r->print(''); + if($GoToPage eq 'activitylog') { +# &Apache::lonproblemstatistics::Activity(); + } elsif($GoToPage eq 'problem_statistics') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=problem_statistics', + text=>'Overall Problem Statistics'}); + &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c); + } elsif($GoToPage eq 'problem_analysis') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=problem_analysis', + text=>'Detailed Problem Analysis'}); + &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c); + } elsif($GoToPage eq 'submissiontime_analysis') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=submissiontime_analysis', + text=>'Submission Time Plots'}); + &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c); + } elsif($GoToPage eq 'student_submission_reports') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=student_submission_reports', + text=>'Student Submission Reports'}); + &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c); + } elsif($GoToPage eq 'survey_reports') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=> + '/adm/statistics?reportselected=survey_reports', + text=>'Survey Reports'}); + &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c); + } elsif($GoToPage eq 'correct_problems_plot') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=correct_problems_plot', + text=>'Correct Problems Plot'}); + &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c); + } elsif($GoToPage eq 'student_assessment') { + &Apache::lonhtmlcommon::clear_breadcrumbs(); + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=student_assessment', + text=>'Chart'}); + &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c); + } elsif($GoToPage eq 'grading_analysis') { + &Apache::lonhtmlcommon::add_breadcrumb + ({href=>'/adm/statistics?reportselected=grading_anaylsis', + text=>'Grading Analysis'}); + &Apache::longradinganalysis::build_grading_analysis_page($r,$c); + } + # + $r->print("
\n"); } + $r->print(&Apache::loncommon::end_page()); + $r->rflush(); + # + return OK; } + 1; + +####################################################### +####################################################### + +=pod + +=back + +=cut + +####################################################### +####################################################### + __END__ +