From:['.localtime($ConceptData{'Int.'.$k}).
- '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1).
- "]
$Correct
$Wrong
";
+sub section_and_enrollment_description {
+ my ($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') {
+ $description = &mt('Unable to determine section, groups and access status');
+ } elsif ($mode eq 'plaintext') {
+ $description = 'Unable to determine section, groups and access status';
+ } else {
+ $description = 'Bad parameter passed to lonstatistics::section_and_enrollment_description';
+ &Apache::lonnet::logthis($description);
+ }
+ $description = §ion_or_group_text($mode,'section',@sections).
+ ' '.§ion_or_group_text($mode,'group',@groups);
+ if ($mode eq 'localized') {
+ $description .= ' '.&mt($env{'form.Status'}.' access status.');
+ } elsif ($mode eq 'plaintext') {
+ $description .= ' '.$env{'form.Status'}.' access status.';
+ }
+ return $description;
+}
- $Str .= "\n".'
';
- $r->print($Str);
-#$Apache::lonxml::debug=1;
-#&Apache::lonhomework::showhash(%ConceptData);
-#$Apache::lonxml::debug=0;
+
+
+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') {
+ $text = &mt($phrases{$type}{single}.' [_1].',$items[0]);
+ } elsif ($mode eq 'plaintext') {
+ $text = $phrases{$type}{single}.' '.$items[0].'.';
+
+ }
+ } elsif (scalar(@items) && $items[0] eq 'all') {
+ if ($mode eq 'localized') {
+ $text = &mt($phrases{$type}{all}.'.');
+ } elsif ($mode eq 'plaintext') {
+ $text = $phrases{$type}{all}.'.';
+ }
+ } elsif (scalar(@items)) {
+ my $lastitem = pop(@items);
+ if ($mode eq 'localized') {
+ $text = &mt($phrases{$type}{plural}.' [_1] and [_2].',
+ join(', ',@items),$lastitem);
+ } elsif ($mode eq 'plaintext') {
+ $text = $phrases{$type}{plural}.' '.join(', ',@items).' and '.
+ $lastitem.'.';
+ }
+ }
+ return $text;
}
-sub DrawGraph {
- my ($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]);
- }
+sub get_students {
+ if (! @Students) {
+ &PrepareClasslist()
}
- my $P_No = $#data1+1;
+ return @Students;
+}
- 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));
- $r->print('');
+sub current_student {
+ return $curr_student;
}
-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".'
Problem Title
'.
- "\n".'
Resouse
'.
- "\n".'
Address
'.
- "\n".'
';
-
- my $P_No=1;
- foreach (sort keys %OpResp) {
- my ($rid,$part)=split(/\:/,$OpResp{$_});
- my $Temp = ''.$hash{'title_'.$rid}.'';
- $Str .= "\n"."
".
- "\n"."
$P_No
".
- "\n"."
".$Temp."
".
- "\n"."
".$hash{'src_'.$rid}."
".
- "\n"."
".''.'
'.
- "\n"."
";
- $P_No++;
- }
- $Str .= "\n".'
';
- $Str .= "\n".'';
- $r->print($Str);
- $r->rflush();
+
+sub previous_student {
+ return $prev_student;
}
-sub Decide {
- #deciding the true or false answer belongs to each interval
- my ($type,$foil,$time)=@_;
- my $k=0;
- while ($time>$ConceptData{'Int.'.($k+1)} &&
- $k<$ConceptData{'Interval'}) {$k++;}
- $ConceptData{"$foil_to_concept{$foil}.$k.$type"}++;
+
+sub next_student {
+ return $next_student;
}
-#restore the student submissions and finding the result
-sub OpStatus {
- my ($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 $Ansr) {
- &Decide("true",$_,$time );
- }
- else {&Decide("false",$_,$time );}
- }
- }
- }
- }
+
+sub StudentDataSelect {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
+ return;
+ }
+ #
+ # Build the form element
+ my $Str = "\n";
+ $Str .= '\n";
+ return $Str;
}
-#------- 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;
- $nStud=0;
+
+sub get_selected_maps {
+ my ($elementname) = @_;
+ my @selected_maps =
+ &Apache::loncommon::get_env_multiple('form.'.$elementname);
+ @selected_maps = ('all') if (! @selected_maps);
+ foreach my $map (@selected_maps) {
+ if ($map eq 'all') {
+ @selected_maps = ('all');
+ last;
+ }
}
- return %Proc;
+ return @selected_maps;
}
-#------- 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 $Str = "\n".'
'.
- "\n".'
'.
- "\n".'
#
'.
- "\n".'
Set Title
'.
- "\n".'
Results
'.
- "\n".'
Tries
'.
- "\n".'
';
- my ($temp)=keys(%result);
- unless ($temp=~/^error\:/) {
- foreach my $CurCol (@cols) {
- if (!$CurCol){
- my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1});
- if ( $Set ) {
- $SetNo++;
- $Str .= "\n"."
".
- "\n"."
$SetNo
".
- "\n"."
$Set
".
- "\n"."
$PtrCod
".
- "\n"."
$PtrTry
".
- "\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;
- $PartNo++;
- }
- }
- }
+sub selected_sequences_with_assessments {
+ my ($mode) = @_;
+ $mode = 'selected' if (! defined($mode));
+ my $navmap = Apache::lonnavmaps::navmap->new();
+ if (!defined($navmap)) {
+ return ('Can not open Coursemap');
+ }
+ #
+ my @sequences = $navmap->retrieveResources(undef,
+ sub { shift->is_map(); },1,0,1);
+ my $toplevelseq = $navmap->getById('0.0');
+ if (!grep(/^\Q$toplevelseq\E$/,@sequences)) {
+ unshift(@sequences,$toplevelseq);
+ }
- 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;
- }
- }
+ my @sequences_with_assessments;
+ foreach my $sequence (@sequences) {
+ if ($navmap->hasResource($sequence,sub { shift->is_problem(); },0,1)){
+ push(@sequences_with_assessments,$sequence);
+ }
+ }
+ #
+ my @sequences_to_show;
+ foreach my $sequence (@sequences_with_assessments) {
+ if ($mode eq 'all') {
+ push (@sequences_to_show,$sequence);
+ } elsif ($mode eq 'selected') {
+ foreach my $map_symb (&get_selected_maps('Maps')) {
+ if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
+ push (@sequences_to_show,$sequence);
+ last; # Only put it in once
}
- 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".'
'."\n");
- $r->rflush();
+
+sub map_select {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
+ return;
+ }
+ #
+ # Set up array of selected items
+ my @selected_maps = &get_selected_maps($elementname);
+ #
+ # Build the form element
+ my $form = "\n";
+ $form .= '\n";
+ return $form;
}
-
-# ------------------------------------------- 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. '.
- ' Max : Maximunm Number of Tries for solving the problem. '.
- ' Avg. : 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 - Avg.)^2)) / (#Stdnts-1)'.
- ' where Xi denotes every student\'s tries ] '.
- ' Skew. : Skewness of the students tries.'.
- ' [ (sqrt( sum((Xi - Avg.)^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 {
- $r->print("Unable to tie hash to db file");
+sub SectionSelect {
+ my ($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 $Str;
}
-# ------------------------------------- Find the section of student in a course
-
-sub usection {
- my ($udom,$unam,$courseid,$ActiveFlag)=@_;
- $courseid=~s/\_/\//g;
- $courseid=~s/^(\w)/\/$1/;
- foreach (split(/\&/,&Apache::lonnet::reply('dump:'.
- $udom.':'.$unam.':roles',
- &Apache::lonnet::homeserver($unam,$udom)))){
- 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));
- 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 $section;
+sub GroupSelect {
+ my ($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";
}
-# ------ 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=~/^error\:/) {
- 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,$_.'.part');
- }
+
+
+sub DisplayClasslist {
+ my ($r)=@_;
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({text=>'Select One Student'});
+ #
+ # Output some of the standard interface components
+ my $Str;
+ $Str .= &Apache::lonhtmlcommon::breadcrumbs('Select One Student');
+ $Str .= '
';
+ }
+ $Str .= &Apache::loncommon::end_data_table_row();
}
- #$r->print($sname.' PrCr= '.$TotParCr.' Slvd= '.$ProbSolved.' Tries='.$TotalTries.' ');
+ $Str .= &Apache::loncommon::end_data_table();
+ #
+ $r->print($Str);
+ $r->rflush();
+ #
+ return;
}
-# ------------------------------------------------------------ Build page table
-sub tracetable {
- my ($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.':';
- $IsMap=1;
+
+sub CreateMainMenu {
+ #
+ # Define menu data
+ my @reports = (
+ {categorytitle => 'Statistics and Analyses',
+ items => [
+ {url => '/adm/statistics?reportSelected=problem_statistics',
+ permission => 'F',
+ icon => 'document-open.png',
+ linktext => ('Overall Problem Statistics'),
+ linktitle => ('Student performance statistics on all problems.')},
+
+ {url => '/adm/statistics?reportSelected=problem_analysis',
+ permission => 'F',
+ icon => 'edit-find.png',
+ linktext => ('Detailed Problem Analysis'),
+ linktitle => ('Detailed statistics and graphs of student performance on problems.')},
+ ]},
+ {categorytitle => 'Plots',
+ items => [
+ {url => '/adm/statistics?reportSelected=submissiontime_analysis',
+ permission => 'F',
+ icon => 'subtimpl.png',
+ linktext => ('Submission Time Plots'),
+ linktitle => ('Display and analysis of submission times on assessments.')},
+
+ {url => '/adm/statistics?reportSelected=correct_problems_plot',
+ permission => 'F',
+ icon => 'coprplot.png',
+ linktext => ('Correct Problems Plot'),
+ linktitle => ('Display a histogram of student performance in the course.')},
+ ]},
+ {categorytitle => 'Reports',
+ items => [
+ {url => '/adm/statistics?reportSelected=student_submission_reports',
+ permission => 'F',
+ icon => 'edit-copy.png',
+ linktext => ('Student Submission Reports'),
+ linktitle => ('Prepare reports of student submissions.')},
+
+ {url => '/adm/statistics?reportSelected=survey_reports',
+ permission => 'F',
+ icon => 'docs.png',
+ linktext => ('Survey Reports'),
+ linktitle => ('Prepare reports on survey results.')},
+ ]});
+
+return &Apache::lonhtmlcommon::generate_menu(@reports);
- #$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.'&');
- $cols[$#cols+1]=($P_Order+1).':'.$frid;
+
+sub handler {
+ 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'}=
+ $r->uri.":vgr:0:0:Cannot view grades with given role";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ }
+ #
+ # Send the header
+ &Apache::loncommon::no_cache($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
- 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);
- }
- }
+ $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('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!').
+ '
');
+ $r->print('
'
+ .&mt('Please notify the server administrator [_1]',
+ ,''.$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.').'
'+
- ''+
- '');
- popwin.document.close();
-
-ENDPOP
+=pod
- $r->rflush();
-}
+=head1 NAME
+lonstatistics
-sub Update_PrgWin {
-#----------- update progress
- my $index = shift;
- $r->print('');
- $r->rflush();
-}
+=head1 SYNOPSIS
-sub Close_PrgWin {
-#--------------------- close Progress Line
- $r->print('');
- $r->rflush();
-}
+Main handler for statistics and chart.
-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.'';
+This is part of the LearningOnline Network with CAPA project
+described at http://www.lon-capa.org.
-#------------------------ 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;
+=head1 PACKAGE VARIABLES
-#-------------------------------- 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();
-}
+=over
-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();
- }
- }
- else {
- &CreateTable(0);
- for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) {
- my($Pre, $Post) = split(/\@/,$list[$nIdx]);
- &TableRow($Post,$nIdx,$nIdx);
- }
- &CloseTable();
- }
-}
+=item @FullClasslist The full classlist
-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 $Ptr = "\n".'
'.
- "\n".'
'.($RealIdx+1).'
'.
- # "\n".'
'.$PrOrd.$Temp.'
'.
- "\n".'
'.$Temp.'
'.
- "\n".'
'.$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.'
' );
- }
- $GraphDat{$RealIdx}=$DoD.':'.$Wrng;
-}
+=item @Students The students we are concerned with for this invocation
-# ------------------------------------------- Prepare data for Graphical chart
+=item @Sections The sections available in this class
-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");
- }
- }
-}
+=item @Groups The groups available in the class
+=item $curr_student The student currently being examined
-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;
-}
+=item $prev_student The student previous in the classlist
-# my $CacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
-# "_$ENV{'user.domain'}_$cid\_classlist.db";
-# if (-e "$CacheDB") {
-# if (tie(%students,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) {
-# &CachClassList();
-# }
-# else {
-# $r->print("Unable to tie hash to db file");
-# }
-# }
-# else {
-# if (tie(%students,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) {
-# &MakeClassList();
-# }
-# else {
-# $r->print("Unable to tie hash to db file");
-# }
-# }
-# untie(%students);
-
-
-sub ClassList {
-
- &GetStatus();
-
- $cid=$ENV{'request.course.id'};
- my $chome=$ENV{'course.'.$cid.'.home'};
- my ($cdom,$cnum)=split(/\_/,$cid);
-# ----------------------- Get first and last resource, see if there is anything
- $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
- $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
- if (($firstres) && ($lastres)) {
-# my %students = &Apache::lonnet::dump('classlist',$cdom,$cnum);
-# $Apache::lonxml::debug=1;
-# &Apache::lonhomework::showhash(%students);
-# $Apache::lonxml::debug=0;
-# my $StudNo = 0;
-# my $now=time;
-# my ($temp)=keys(%students);
-# unless ($temp=~/^error\:/) {
-# foreach my $KeyPoint(sort keys(%students)) {
-
-
- my $classlst=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':classlist',$chome);
-
- my $StudNo = 0;
- my $now=time;
- unless ($classlst=~/^error\:/) {
- foreach my $KeyPoint(sort split(/\&/,$classlst)) {
- my ($name,$value)=split(/\=/,$KeyPoint);
- my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($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;
- $name=&Apache::lonnet::unescape($name);
- $students[$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++;
- }
- }
- }
- 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.'&');
-# 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++;
-# }
+=item $next_student The student next in the classlist
- }
+=back
-# ------------------------------------------------------------- End render page
- else {
- $r->print('
');
+sub current_student {
+ return $curr_student;
}
-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('
');
-# ---------------------------------------------------------------- Course title
- $r->print('