--- loncom/interface/statistics/lonproblemanalysis.pm	2002/09/07 23:07:38	1.10
+++ loncom/interface/statistics/lonproblemanalysis.pm	2003/10/15 21:30:51	1.39
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
-# (Publication Handler
 #
-# $Id: lonproblemanalysis.pm,v 1.10 2002/09/07 23:07:38 minaeibi Exp $
+
+# $Id: lonproblemanalysis.pm,v 1.39 2003/10/15 21:30:51 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -25,507 +25,780 @@
 #
 # http://www.lon-capa.org/
 #
-# (Navigate problems for statistical reports
-# YEAR=2002
-# 5/12,7/26  Behrouz Minaei
-#
-###
 
-package Apache::lonproblemanalysis; 
+package Apache::lonproblemanalysis;
 
 use strict;
 use Apache::lonnet();
+use Apache::loncommon();
 use Apache::lonhtmlcommon();
-use GDBM_File;
-
-my $jr;
+use Apache::loncoursedata();
+use Apache::lonstatistics;
+use Apache::lonlocal;
+use HTML::Entities();
+
+my $plotcolors = [qw/
+                  #33ff00 
+                  #0033cc #990000 #aaaa66 #663399 #ff9933
+                  #66ccff #ff9999 #cccc33 #660000 #33cc66
+                  /]; 
+               #[qw/lgreen dgreen dred/];
 
 sub BuildProblemAnalysisPage {
-    my ($cacheDB, $r)=@_;
-
-    my %cache;
-    unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
-        $r->print('Unable to tie database.');
-        return;
-    }
-
-    my $Ptr = '';
-    $Ptr .= '<table border="0"><tbody>';
-    $Ptr .= '<tr><td align="right"><b>Select Sections</b>';
-    $Ptr .= '</td>'."\n";
-    $Ptr .= '<td align="left">'."\n";
-    my @sectionsSelected = split(':',$cache{'sectionsSelected'});
-    my @sections = split(':',$cache{'sectionList'});
-    $Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections,
-                                                          \@sectionsSelected,
-                                                          'Statistics');
-    $Ptr .= '</td></tr>'."\n";
-    $Ptr .= '<tr><td align="right"><b>Intervals</b></td>'."\n";
-    $Ptr .= '<td align="left">';
-    $Ptr .= &IntervalOptions($cache{'Interval'});
-    $Ptr .= '</td></tr></table><br>';
-    $r->print($Ptr);
+    my ($r,$c)=@_;
+    $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
+    $r->print(&CreateInterface());
+    #
+    my @Students = @Apache::lonstatistics::Students;
+    #
+    if (exists($ENV{'form.updatecaches'}) ||
+        (exists($ENV{'form.firstanalysis'}) &&
+         $ENV{'form.firstanalysis'} ne 'no')) {
+        &Apache::lonstatistics::Gather_Full_Student_Data($r);
+    }
+    if (! exists($ENV{'form.firstanalysis'})) {
+        $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
+    } else {
+        $r->print('<input type="hidden" name="firstanalysis" value="no" />');
+    }
     $r->rflush();
-    $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache, $r));
-
-    untie(%cache);
-
-    return;
+    if (exists($ENV{'form.problemchoice'}) && 
+        ! exists($ENV{'form.SelectAnother'})) {
+        $r->print('<input type="submit" name="ProblemAnalysis" value="'.
+                  &mt('Analyze Problem Again').'" />');
+        $r->print('&nbsp;'x5);
+        $r->print('<input type="submit" name="ClearCache" value="'.
+                  &mt('Clear Caches').'" />');
+        $r->print('&nbsp;'x5);
+        $r->print('<input type="submit" name="updatecaches" value="'.
+                  &mt('Update Student Data').'" />');
+        $r->print('&nbsp;'x5);
+        $r->print('<input type="hidden" name="problemchoice" value="'.
+                  $ENV{'form.problemchoice'}.'" />');
+        $r->print('<input type="submit" name="SelectAnother" value="'.
+                  &mt('Choose a different resource').'" />');
+        $r->print('&nbsp;'x5);
+        #
+        $r->print('<hr />');
+        #
+        my ($symb,$part,$resid) = &get_problem_symb(
+                     &Apache::lonnet::unescape($ENV{'form.problemchoice'})
+                                           );
+        #
+        my $resource = &get_resource_from_symb($symb);
+        if (defined($resource)) {
+            my %Data = &get_problem_data($resource->{'src'});
+            my $ORdata = $Data{$part.'.'.$resid};
+            ##
+            ## Render the problem
+            my $base;
+            ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
+            $base = "http://".$ENV{'SERVER_NAME'}.$base;
+            my $rendered_problem = 
+                &Apache::lonnet::ssi_body($resource->{'src'});
+            $rendered_problem =~ s/<\s*form\s*/<nop /g;
+            $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
+            $r->print('<table bgcolor="ffffff"><tr><td>'.
+                      '<base href="'.$base.'" />'.
+                      $rendered_problem.
+                      '</td></tr></table>');
+            ##
+            ## Analyze the problem
+            my $PerformanceData = 
+                &Apache::loncoursedata::get_optionresponse_data
+                                           (\@Students,$symb,$resid);
+            if (defined($PerformanceData) && 
+                ref($PerformanceData) eq 'ARRAY') {
+                if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
+                    my $analysis_html = &tries_analysis($PerformanceData,
+                                                         $ORdata);
+                    $r->print($analysis_html);
+                } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
+                    my $analysis_html = &time_analysis($PerformanceData,
+                                                         $ORdata);
+                $r->print($analysis_html);
+                } else {
+                    $r->print('<h2>'.
+                              &mt('The analysis you have selected is '.
+                                         'not supported at this time').
+                              '</h2>');
+                }
+            } else {
+                $r->print('<h2>'.
+                          &mt('There is no student data for this problem.').
+                          '</h2>');
+            }
+        } else {
+            $r->print('resource is undefined');
+        }
+        $r->print('<hr />');
+    } else {
+        $r->print('<input type="submit" name="ProblemAnalysis" value="'.
+                  &mt('Analyze Problem').'" />');
+        $r->print('&nbsp;'x5);
+        $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
+        $r->print(&OptionResponseProblemSelector());
+    }
 }
 
-sub BuildAnalyzePage {
-    my ($cacheDB, $students, $courseID,$r)=@_;
 
-    $jr = $r;
-    my $c = $r->connection;
-
-    my $Str = '</form>';
-    my %cache;
+#########################################################
+#########################################################
+##
+##      Misc interface routines use by analysis code
+##
+#########################################################
+#########################################################
+sub build_foil_index {
+    my ($ORdata) = @_;
+    my %Foildata = %{$ORdata->{'Foils'}};
+    my @Foils = sort(keys(%Foildata));
+    my %Concepts;
+    foreach my $foilid (@Foils) {
+        push(@{$Concepts{$Foildata{$foilid}->{'Concept'}}},
+             $foilid);
+    }
+    undef(@Foils);
+    # Having gathered the concept information in a hash, we now translate it
+    # into an array because we need to be consistent about order.
+    # Also put the foils in order, too.
+    my $sortfunction = sub {
+        my %Numbers = (one   => 1,
+                       two   => 2,
+                       three => 3,
+                       four  => 4,
+                       five  => 5,
+                       six   => 6,
+                       seven => 7,
+                       eight => 8,
+                       nine  => 9,
+                       ten   => 10,);
+        my $a1 = $a; 
+        my $b1 = $b;
+        if (exists($Numbers{lc($a)})) {
+            $a1 = $Numbers{lc($a)};
+        }
+        if (exists($Numbers{lc($b)})) {
+            $b1 = $Numbers{lc($b)};
+        }
+        $a1 cmp $b1;
+    };
+    my @Concepts;
+    foreach my $concept (sort $sortfunction (keys(%Concepts))) {
+        push(@Concepts,{ name => $concept,
+                        foils => [@{$Concepts{$concept}}]});
+        push(@Foils,(@{$Concepts{$concept}}));
+    }
+    #
+    # Build up the table of row labels.
+    my $table = '<table border="1" >'."\n";
+    if (@Concepts > 1) {
+        $table .= '<tr>'.
+            '<th>'.&mt('Concept Number').'</th>'.
+            '<th>'.&mt('Concept').'</th>'.
+            '<th>'.&mt('Foil Number').'</th>'.
+            '<th>'.&mt('Foil Name').'</th>'.
+            '<th>'.&mt('Foil Text').'</th>'.
+            '<th>'.&mt('Correct Value').'</th>'.
+            "</tr>\n";
+    } else {
+        $table .= '<tr>'.
+            '<th>'.&mt('Foil Number').'</th>'.
+            '<th>'.&mt('Foil Name').'</th>'.
+            '<th>'.&mt('Foil Text').'</th>'.
+            '<th>'.&mt('Correct Value').'</th>'.
+            "</tr>\n";
+    }        
+    my $conceptindex = 1;
+    my $foilindex = 1;
+    foreach my $concept (@Concepts) {
+        my @FoilsInConcept = @{$concept->{'foils'}};
+        my $firstfoil = shift(@FoilsInConcept);
+        if (@Concepts > 1) {
+            $table .= '<tr>'.
+                '<td>'.$conceptindex.'</td>'.
+                '<td>'.$concept->{'name'}.'</td>'.
+                '<td>'.$foilindex++.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
+                "</tr>\n";
+        } else {
+            $table .= '<tr>'.
+                '<td>'.$foilindex++.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
+                '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
+                "</tr>\n";
+        }
+        foreach my $foilid (@FoilsInConcept) {
+            if (@Concepts > 1) {
+                $table .= '<tr>'.
+                    '<td></td>'.
+                    '<td></td>'.
+                    '<td>'.$foilindex.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
+                    "</tr>\n";
+            } else {
+                $table .= '<tr>'.
+                    '<td>'.$foilindex.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
+                    '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
+                    "</tr>\n";
+            }                
+        } continue {
+            $foilindex++;
+        }
+    } continue {
+        $conceptindex++;
+    }
+    $table .= "</table>\n";
+    #
+    # Build option index with color stuff
+    return ($table,\@Foils,\@Concepts);
+}
 
-    unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
-        $Str .= 'Unable to tie database.';
-        $r->print($Str);
-        return;
+sub build_option_index {
+    my ($ORdata)= @_;
+    my $table = "<table>\n";
+    my $optionindex = 0;
+    my @Rows;
+    foreach my $option ('correct',@{$ORdata->{'Options'}}) {
+        push (@Rows,
+              '<tr>'.
+              '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
+              ('&nbsp;'x4).'</td>'.
+              '<td>'.$option.'</td>'.
+              "</tr>\n");
     }
+    $table .= join('',reverse(@Rows));
+    $table .= "</table>\n";
+}
 
-    # Remove students who don't have the proper section.
-    my @sectionsSelected = split(':',$cache{'sectionsSelected'});
-    for(my $studentIndex=((scalar @$students)-1); $studentIndex>=0;
-        $studentIndex--) {
-        my $value = $cache{$students->[$studentIndex].':section'};
-        my $found = 0;
-        foreach (@sectionsSelected) {
-            if($_ eq 'none') {
-                if($value eq '' || !defined($value) || $value eq ' ') {
-                    $found = 1;
-                    last;
+#########################################################
+#########################################################
+##
+##         Tries Analysis
+##
+#########################################################
+#########################################################
+sub tries_analysis {
+    my ($PerformanceData,$ORdata) = @_;
+    my $mintries = 1;
+    my $maxtries = $ENV{'form.NumPlots'};
+    my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
+    if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
+        $table = '<h3>'.
+            &mt('Not enough data for concept analysis.  '.
+                'Performing Foil Analysis').
+            '</h3>'.$table;
+        $ENV{'form.AnalyzeAs'} = 'Foils';
+    }
+    my %ResponseData = &analyze_option_data_by_tries($PerformanceData,
+                                                     $mintries,$maxtries);
+    #
+    # Compute the data neccessary to make the plots
+    my @PlotData;   # Array which holds the data for each plot
+                    # @{$PlotData[$try]->{'datasetname'}} holds the data for
+                    # try $try with respect to 'datasetname'.  The array is
+                    # filled either with per-foil or per-concept data.
+    my ($extrakey,$xlabel,$ylabel);
+    if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
+        $extrakey = &build_option_index($ORdata);
+        $xlabel = 'Foil Number';
+        $ylabel = 'Option Chosen';
+        foreach my $foilid (@$Foils) {
+            for (my $i=$mintries;$i<=$maxtries;$i++) {
+                foreach my $option ('_correct',@{$ORdata->{'Options'}}) {
+                    push(@{$PlotData[$i]->{'_total'}},
+                         $ResponseData{$foilid}->[$i]->{'_total'});
+                    if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
+                        push (@{$PlotData[$i]->{$option}},0);
+                    } else {
+                        push (@{$PlotData[$i]->{$option}},
+                              100 * $ResponseData{$foilid}->[$i]->{$option} / 
+                                    $ResponseData{$foilid}->[$i]->{'_total'});
+                    }
                 }
-            } else {
-                if($value eq $_) {
-                    $found = 1;
-                    last;
+            }
+        }
+    } else {
+        # Concept analysis
+        #
+        # Note: we do not bother with characterizing the students incorrect
+        # answers at the concept level because an incorrect answer for one foil
+        # may be a correct answer for another foil.
+        $extrakey = '';
+        $xlabel = 'Concept Number';
+        $ylabel = 'Percent Correct';
+        my %ConceptData;
+        foreach my $concept (@{$Concepts}) {
+            for (my $i=$mintries;$i<=$maxtries;$i++) {
+                #
+                # Gather the per-attempt data
+                my $cdata = $ConceptData{$concept}->[$i];
+                foreach my $foilid (@{$concept->{'foils'}}) {
+                    $cdata->{'_correct'} += 
+                        $ResponseData{$foilid}->[$i]->{'_correct'};
+                    $cdata->{'_total'}   += 
+                        $ResponseData{$foilid}->[$i]->{'_total'};
+                }
+                push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
+                if ($cdata->{'_total'} == 0) {
+                    push (@{$PlotData[$i]->{'_correct'}},0);
+                } else {
+                    push (@{$PlotData[$i]->{'_correct'}},
+                          100*$cdata->{'_correct'}/$cdata->{'_total'});
                 }
             }
         }
-        if($found == 0) {
-            splice(@$students, $studentIndex, 1);
+    } # End of work to fill @PlotData
+    # 
+    # Build a table for the plots
+    $table .= "<table>\n";
+    my @Plots;
+    for (my $i=$mintries;$i<=$maxtries;$i++) {
+        my $minstu = $PlotData[$i]->{'_total'}->[0];
+        my $maxstu = $PlotData[$i]->{'_total'}->[0];
+        foreach my $count (@{$PlotData[$i]->{'_total'}}) {
+            if ($minstu > $count) {
+                $minstu = $count;
+            }
+            if ($maxstu < $count) {
+                $maxstu = $count;
+            }
         }
+        $maxstu = 0 if (! defined($maxstu));
+        $minstu = 0 if (! defined($minstu));
+        my $title;
+        if ($maxstu == $minstu) {
+            $title = 'Attempt '.$i.', '.$maxstu.' students';
+        } else {
+            $title = 'Attempt '.$i.', '.$minstu.'-'.$maxstu.' students';
+        }
+        my @Datasets;
+        foreach my $option ('_correct',@{$ORdata->{'Options'}}) {
+            next if (! exists($PlotData[$i]->{$option}));
+            push(@Datasets,$PlotData[$i]->{$option});
+        }
+        my $graphlink = &Apache::loncommon::DrawGraph($title,
+                                                      $xlabel,
+                                                      $ylabel,
+                                                      100,
+                                                      $plotcolors,
+                                                      @Datasets);
+        push(@Plots,$graphlink);
+    }
+    #
+    # Should this be something the user can set?  Too many dialogs!
+    while (my $plotlink = shift(@Plots)) {
+        $table .= '<tr><td>'.$plotlink.'</td><td>'.$extrakey."</td></tr>\n";
     }
-    unless(untie(%cache)) {
-        $r->print('Can not untie hash.');
-        $r->rflush();
-    }
-
-    my $error = 
-        &Apache::loncoursedata::DownloadStudentCourseDataSeparate($students,
-                                                                  'true',
-                                                                  $cacheDB,
-                                                                  'true', 
-                                                                  'true',
-                                                                  $courseID,
-                                                                  $r, $c);
-    if($error ne 'OK') {
-        $r->print($error.'<br>Error downloading course data<br>');
-        return;
-    }
-
-
-    unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
-        $Str .= 'Unable to tie database.';
-        $r->print($Str);
-        return;
-    }
-
-    my ($problemId, $part, $responseId)=split(':',$cache{'AnalyzeInfo'});
-    my $uri      = $cache{$problemId.':source'};
-    my $problem  = $cache{$problemId.':problem'}; 
-    my $title    = $cache{$problemId.':title'};
-    my $interval = $cache{'Interval'};
-
-    my %ConceptData;
-    $ConceptData{"Interval"} = $interval;
-
-    #Initialize the option response true answers
-    my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem, 
-                                      $students->[0], $courseID);
-    if(defined($analyzeData->{'error'})) {
-        $Str .= $analyzeData->{'error'}.'<br>Incorrect part requested.<br>';
-        $r->print($Str);
-        return;
-    }
-
-    $r->print($Str);
-    $Str = '';
-    if($c->aborted()) {  untie(%cache); return; }
-
-    #compute the intervals
-    &Interval($part, $problem, $interval, $analyzeData->{'concepts'}, 
-              \%ConceptData);
-
-    $title =~ s/\ /"_"/eg;
-    $Str .= '<br><b>'.$uri.'</b>';
+    $table .= "</table>\n";
+    return ($table);
+}
 
-    $r->print($Str);
-    $Str = '';
-    if($c->aborted()) {  untie(%cache); return; }
-         
-    #Java script Progress window
-    for(my $index=0; $index<(scalar @$students); $index++) {
-        if($c->aborted()) {  untie(%cache); return; }
-	&OpStatus($problemId, $students->[$index], \%ConceptData, 
-                  $analyzeData->{'foil_to_concept'}, $analyzeData, \%cache);
+sub analyze_option_data_by_tries {
+    my ($PerformanceData,$mintries,$maxtries) = @_;
+    my %Trydata;
+    $mintries = 1         if (! defined($mintries) || $mintries < 1);
+    $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
+    foreach my $row (@$PerformanceData) {
+        next if (! defined($row));
+        my ($grading,$submission,$time,$tries) = @$row;
+        next if ($grading eq 'MISSING_ANSWER');
+        my @Foilgrades = split('&',$grading);
+        my @Foilsubs   = split('&',$submission);
+        for (my $numtries = 1; $numtries <= $maxtries; $numtries++) {
+            if ($tries == $numtries) {
+                for (my $i=0;$i<=$#Foilgrades;$i++) {
+                    my ($foilid,$correct)  = split('=',$Foilgrades[$i]);
+                    my (undef,$submission) = split('=',$Foilsubs[$i]);
+                    $submission = &HTML::Entities::decode($submission);
+                    $submission =~ s/\%20/ /g;
+                    if ($correct) {
+                        $Trydata{$foilid}->[$numtries]->{'_correct'}++;
+                    } else {
+                        $Trydata{$foilid}->[$numtries]->{$submission}++;
+                    }                        
+                    $Trydata{$foilid}->[$numtries]->{'_total'}++;
+                }
+            }
+        }
     }
+    return %Trydata;
+}
 
-    $Str .= '<br>';
-    for (my $k=0; $k<$interval; $k++ ) {
-        if($c->aborted()) {  untie(%cache); return $Str; }
-	$Str .= &DrawGraph($k, $title, $analyzeData->{'concepts'}, 
-                           \%ConceptData);
-        $r->print($Str);
-        $Str = '';
-    }
-    for (my $k=0; $k<$interval; $k++ ) {
-        if($c->aborted()) {  untie(%cache); return $Str; }
-	$Str .= &DrawTable($k, $analyzeData->{'concepts'}, \%ConceptData);
-        $r->print($Str);
-        $Str = '';
+#########################################################
+#########################################################
+##
+##                 Time Analysis
+##
+#########################################################
+#########################################################
+sub time_analysis {
+    my ($PerformanceData,$ORdata) = @_;
+    my $num_plots = $ENV{'form.NumPlots'};
+    my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
+    my $num_data = scalar(@$PerformanceData)-1;
+    my $percent = sprintf('%2f',100/$num_plots);
+    my $extratable = '';
+    if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
+        $extratable = &build_option_index($ORdata);
+    }
+    $table .= "<table>\n";
+    for (my $i=0;$i<$num_plots;$i++) {
+        my $starttime = &Apache::lonhtmlcommon::get_date_from_form
+            ('startdate_'.$i);
+        my $endtime = &Apache::lonhtmlcommon::get_date_from_form
+            ('enddate_'.$i);
+        my ($begin_index,$end_index,$plottitle,$plothtml,$data);
+        if (! defined($starttime) || ! defined($endtime)) {
+            $begin_index = $i*int($num_data/$num_plots);
+            $end_index = ($i+1)*int($num_data/$num_plots);
+            my $lownum  = sprintf('%2.1f',$i*$percent);
+            $lownum =~ s/(\.0)$//;
+            my $highnum = sprintf('%2.1f',($i+1)*$percent);
+            $highnum =~ s/(\.0)$//;
+            $plottitle = $lownum.'% to '.$highnum.'% of submissions';
+        } else {
+            my $j;
+            while (++$j < scalar(@$PerformanceData)) {
+                last if ($PerformanceData->[$j]->[2] > $starttime);
+            }
+            $begin_index = $j;
+            while (++$j < scalar(@$PerformanceData)) {
+                last if ($PerformanceData->[$j]->[2] > $endtime);
+            }
+            $end_index = $j;
+            $plottitle = $ENV{'form.plottitle_'.$i};
+        }
+        ($plothtml,$starttime,$endtime,$data) = 
+            &analyze_option_data_by_time($PerformanceData,
+                                         $begin_index,$end_index,
+                                         $plottitle,$Foils,
+                                         $Concepts,$ORdata);
+        my $startdateform = &Apache::lonhtmlcommon::date_setter
+            ('Statistics','startdate_'.$i,$starttime);
+        my $enddateform = &Apache::lonhtmlcommon::date_setter
+            ('Statistics','enddate_'.$i,$endtime);
+        $table.="<tr><td>".$plothtml.'</td><td align="left" valign="top">'.
+            "<b>Start Time</b>: &nbsp;".$startdateform."<br />".
+            "<b>End Time</b>&nbsp;&nbsp;: "."&nbsp;".$enddateform."<br />".
+            '<b>Plot Title</b>&nbsp;&nbsp;:'.("&nbsp;"x3).
+            '<input type="text" size="30" name="plottitle_'.$i.'" value="'.
+                  &HTML::Entities::encode($plottitle).'" /><br />'.$extratable.
+            "</td></tr>\n";
     }
-    my $Answ=&Apache::lonnet::ssi($uri);
-    $Str .= '<br><b>Here you can see the Problem:</b><br>'.$Answ;
-    $Str .= '<form>';
-    $r->print($Str);
-
-    untie(%cache);
-
-    return;
+    $table .="</table>\n";
+    return $table;
 }
 
-#---- Problem Analysis Web Page ----------------------------------------------
-
-sub IntervalOptions {
-    my ($selectedInterval)=@_;
-
-    my $interval = 1;
-    for(my $n=1; $n<=7; $n++) {
-        if($selectedInterval == $n) {
-            $interval = $n;
+sub analyze_option_data_by_time {
+    my ($PerformanceData,$begin_index,
+        $end_index,$description,$Foils,$Concepts,$ORdata) = @_;
+    my %TimeData;
+    #
+    # Get the start and end times for this segment of the plot
+    my $starttime = $PerformanceData->[$begin_index]->[2];
+    my $endtime   = $PerformanceData->[$end_index  ]->[2];
+    #
+    # Compute the number getting the foils correct or incorrects
+    for (my $i=$begin_index;$i<=$end_index;$i++) {
+        my $row = $PerformanceData->[$i];
+        next if (! defined($row));
+        my ($grading,$submission,$time,$tries) = @$row;
+        next if ($grading eq 'MISSING_ANSWER');
+        my @Foilgrades = split('&',$grading);
+        my @Foilsubs   = split('&',$submission);
+        for (my $j=0;$j<=$#Foilgrades;$j++) {
+            my ($foilid,$correct)  = split('=',$Foilgrades[$j]);
+            my (undef,$submission) = split('=',$Foilsubs[$j]);
+            if ($correct) {
+                $TimeData{$foilid}->{'_correct'}++;
+            } else {
+                $submission = &HTML::Entities::decode($submission);
+                $submission =~ s/\%20/ /g;
+                $TimeData{$foilid}->{$submission}++;
+            }
+            $TimeData{$foilid}->{'_total'}++;
         }
     }
-
-    my $Ptr = '<select name="Interval">'."\n";
-    for(my $n=1; $n<=7;$ n++) {
-	$Ptr .= '<option';
-        if($interval == $n) {
-            $Ptr .= ' selected';
+    #
+    # Compute the total and percent correct
+    my @Plotdata;
+    my ($xlabel,$ylabel);
+    if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
+        $xlabel = 'Foil Number';
+        $ylabel = 'Option Chosen';
+        foreach my $foil (@$Foils) {
+            my $total = $TimeData{$foil}->{'_total'};
+            my $optionidx = 0;
+            foreach my $option ('_correct',@{$ORdata->{'Options'}}) {
+                if ($total > 0) {
+                    push(@{$Plotdata[$optionidx]},
+                         100 * $TimeData{$foil}->{$option} / $total);
+                } else {
+                    push(@{$Plotdata[$optionidx]},0);
+                }
+            } continue {
+                $optionidx++;
+            }
+        }
+    } else {
+        $xlabel = 'Concept Number';
+        $ylabel = 'Percent Correct';
+        foreach my $concept (@$Concepts) {
+            my $correct;
+            my $total;
+            foreach my $foil (@{$concept->{'foils'}}) {
+                $correct+=$TimeData{$foil}->{'_correct'};
+                $total  +=$TimeData{$foil}->{'_total'};
+            }
+            if ($total > 0) {
+                push(@{$Plotdata[0]},100 * $correct / $total);
+            } else {
+                push(@{$Plotdata[0]},0);
+            }
         }
-	$Ptr .= '>'.$n."</option>"."\n";
     }
-    $Ptr .= '</select>'."\n";
-
-    return $Ptr;
+    #
+    # Create the plot
+    my $graphlink = &Apache::loncommon::DrawGraph
+        ($description,#'Time Interval Analysis',
+         $xlabel,
+         $ylabel,
+         100,
+         $plotcolors,
+         @Plotdata);
+    #
+    return ($graphlink,$starttime,$endtime,\%TimeData);
 }
 
-sub OptionResponseTable {
-    my ($optionResponses,$cache,$r)=@_;
-
-    my @optionResponses=split(':::', $optionResponses);
-    my %partCount;
-    my %sequences;
-    my @orderedSequences=();
-    foreach(@optionResponses) {
-        my ($sequence, $problemId, $part, undef)=split(':',$_);
-        $partCount{$problemId.':'.$part}++;
-        if(!defined($sequences{$sequence})) {
-            push(@orderedSequences, $sequence);
-            $sequences{$sequence} = $_;
-        } else {
-            $sequences{$sequence} .= ':::'.$_;
-        }
+#########################################################
+#########################################################
+##
+##             Interface 
+##
+#########################################################
+#########################################################
+sub CreateInterface {
+    ##
+    ## Environment variable initialization
+    if (! exists$ENV{'form.AnalyzeOver'}) {
+        $ENV{'form.AnalyzeOver'} = 'Tries';
     }
-    
+    ##
+    ## Build the menu
     my $Str = '';
-
-    foreach my $sequence (@orderedSequences) {
-        my @optionProblems = split(':::', $sequences{$sequence});
-
-        $Str .= '<b>'.$cache->{$sequence.':title'}.'</b>'."\n";
-        $Str .= "<table border=2><tr><th> \# </th><th> Problem Title </th>";
-        $Str .= '<th> Resource </th><th> Analysis  </th></tr>'."\n";
-
-        my $count = 1;
-        foreach(@optionProblems) {
-            my (undef, $problemId, $part, $response)=
-                split(':',$optionProblems[$count-1]);
-#                split(':',$sequences{$sequence});
-            my $uri = $cache->{$problemId.':source'};
-            my $title = $cache->{$problemId.':title'};
-
-            my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
-            $Str .= '<tr>';
-            $Str .= '<td> '.$count.' </td>';
-            $Str .= '<td bgcolor="#DDFFDD">'.$Temp.'</td>';
-            $Str .= '<td bgcolor="#EEFFCC">'.$uri.'</td>';
-            if($partCount{$problemId.':'.$part} < 2) {
-                $Str .= '<td><input type="submit" name="Analyze:::';
-                $Str .= $problemId.':'.$part.'" value="';
-                $Str .= 'Part '.$part;
-                $Str .= '" /></td></tr>'."\n";
-            } else {
-                my $value = $problemId.':'.$part.':'.$response;
-                $Str .= '<td><input type="submit" name="Analyze:::'.$value;
-                $Str .= '" value="';
-                $Str .= 'Part '.$part.' Response '.$response;
-                $Str .= '" /></td></tr>'."\n";
+    $Str .= '<table cellspacing="5">'."\n";
+    $Str .= '<tr>';
+    $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
+    $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
+#    $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
+    $Str .= '<td align="center">&nbsp;</td>';
+    $Str .= '</tr>'."\n";
+    ##
+    ## 
+    $Str .= '<tr><td align="center">'."\n";
+    $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
+    $Str .= '</td>';
+    #
+    $Str .= '<td align="center">';
+    $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
+    $Str .= '</td>';
+    #
+#    $Str .= '<td align="center">';
+    my $only_seq_with_assessments = sub { 
+        my $s=shift;
+        if ($s->{'num_assess'} < 1) { 
+            return 0;
+        } else { 
+            return 1;
+        }
+    };
+    &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
+                                              $only_seq_with_assessments);
+    ##
+    ##
+    $Str .= '<td>';
+    { # These braces are here to organize the code, not scope it.
+        {
+            $Str .= '<nobr>'.&mt('Analyze Over ');
+            $Str .='<select name="AnalyzeOver" >';
+            $Str .= '<option value="Tries" ';
+            if (! exists($ENV{'form.AnalyzeOver'}) || 
+                $ENV{'form.AnalyzeOver'} eq 'Tries'){
+                # Default to Tries
+                $Str .= ' selected ';
+            }
+            $Str .= '>'.&mt('Tries').'</option>';
+            $Str .= '<option value="Time" ';
+            $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
+            $Str .= '>'.&mt('Time').'</option>';
+            $Str .= '</select></nobr><br />';
+        }
+        {
+            $Str .= '<nobr>'.&mt('Analyze as ');
+            $Str .='<select name="AnalyzeAs" >';
+            $Str .= '<option value="Concepts" ';
+            if (! exists($ENV{'form.AnalyzeAs'}) || 
+                $ENV{'form.AnalyzeAs'} eq 'Concepts'){
+                # Default to Concepts
+                $Str .= ' selected ';
+            }
+            $Str .= '>'.&mt('Concepts').'</option>';
+            $Str .= '<option value="Foils" ';
+            $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
+            $Str .= '>'.&mt('Foils').'</option>';
+            $Str .= '</select></nobr><br />';
+        }
+        {
+            $Str .= '<br /><nobr>'.&mt('Number of Plots:');
+            $Str .= '<select name="NumPlots">';
+            if (! exists($ENV{'form.NumPlots'}) 
+                || $ENV{'form.NumPlots'} < 1 
+                || $ENV{'form.NumPlots'} > 20) {
+                $ENV{'form.NumPlots'} = 5;
+            }
+            foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
+                $Str .= '<option value="'.$i.'" ';
+                if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
+                $Str .= '>'.$i.'</option>';
             }
-            $count++;
+            $Str .= '</select></nobr>';
         }
-        $Str .= '</table><br>'."\n";
     }
-
-    return $Str;
+    $Str .= '</td>';
+    ##
+    ##
+    $Str .= '</tr>'."\n";
+    $Str .= '</table>'."\n";
+    return ($Str);
 }
 
-#---- END Problem Analysis Web Page ------------------------------------------
-
-#---- Analyze Web Page -------------------------------------------------------
-
-#restore the student submissions and finding the result
-sub OpStatus {
-    my ($problemID, $student, $ConceptData, $foil_to_concept, 
-        $analyzeData, $cache)=@_;
-
-    my $ids = $analyzeData->{'parts'};
-    my @True = ();
-    my @False = ();
-    my $flag=0;
-
-    my $tries=0;
-
-    foreach my $id (@$ids) {
-        my ($part, $response) = split(/\./, $id);
-        my $time=$cache->{$student.':'.$problemID.':'.$part.':timestamp'};
-        my @submissions = split(':::', $cache->{$student.':'.$problemID.':'.
-                                                $part.':'.$response.
-                                                ':submission'});
-        foreach my $Resp (@submissions) {
-            my %submission=&Apache::lonnet::str2hash($Resp);
-            foreach (keys(%submission)) {
-                if($submission{$_}) {
-                    my $answer = $analyzeData->{$id.'.foil.value.'.$_};
-                    if($submission{$_} eq $answer) {
-                        &Decide("true", $foil_to_concept->{$_}, 
-                                $time, $ConceptData);
-                    } else {
-                        &Decide("false", $foil_to_concept->{$_}, 
-                                $time, $ConceptData);
+sub OptionResponseProblemSelector {
+    my $Str;
+    $Str = "\n<table>\n";
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        next if ($seq->{'num_assess'}<1);
+        my $seq_str = '';
+        foreach my $res (@{$seq->{'contents'}}) {
+            next if ($res->{'type'} ne 'assessment');
+            foreach my $part (@{$res->{'parts'}}) {
+                my $partdata = $res->{'partdata'}->{$part};
+                if (! exists($partdata->{'option'}) || 
+                    $partdata->{'option'} == 0) {
+                    next;
+                }
+                for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
+                    my $respid = $partdata->{'ResponseIds'}->[$i];
+                    my $resptype = $partdata->{'ResponseTypes'}->[$i];
+                    if ($resptype eq 'option') {
+                        my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid);
+                        my $checked = '';
+                        if ($ENV{'form.problemchoice'} eq $value) {
+                            $checked = 'checked ';
+                        }
+                        $seq_str .= '<tr><td>'.
+  '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
+  '</td><td>'.
+  '<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
+                        if ($partdata->{'option'} > 1) {
+                            $seq_str .= &mt('response').' '.$respid;
+                        }
+                        $seq_str .= "</td></tr>\n";
                     }
                 }
             }
         }
+        if ($seq_str ne '') {
+            $Str .= '<tr><td>&nbsp</td><td><b>'.$seq->{'title'}.'</b></td>'.
+                "</tr>\n".$seq_str;
+        }
     }
-
-    return;
+    $Str .= "</table>\n";
+    return $Str;
 }
 
-sub DrawGraph {
-    my ($k,$Src,$Concepts,$ConceptData)=@_;
-    my $Max=0;
-    my @data1;
-    my @data2;
-
-    # Adjust Data and find the Max 
-    for (my $n=0; $n<(scalar @$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; $n<(scalar @$Concepts); $n++ ) {
-	if ($data1[$n]+$data2[$n]<$Max) {
-	    $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
-	}
-    }
-    my $P_No = (scalar @data1);
-
-    if($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;
-    my $GData = '';
-    $GData  = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
-    $GData .= (join(',',@data1)).'&'.(join(',',@data2));
-
-    return '<IMG src="/cgi-bin/graph.gif?'.$GData.'" border=1/>';
-}
-
-sub DrawTable {
-    my ($k,$Concepts,$ConceptData)=@_;
-    my $Max=0;
-    my @data1;
-    my @data2;
-    my $Correct=0;
-    my $Wrong=0;
-    for(my $n=0; $n<(scalar @$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; $n<(scalar @$Concepts); $n++ ) {
-	if ($data1[$n]+$data2[$n]<$Max) {
-	    $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
-	}
-    }
-    my $P_No = (scalar @data1);
-    my $Str = '';
-#    $Str .= '<br><b>From: ['.localtime($ConceptData->{'Int.'.($k-1)});
-#    $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']</b>'; 
-    $Str .= "\n".'<table border=2>'.
-            "\n".'<tr>'.
-            "\n".'<th> # </th>'.
-            "\n".'<th> Concept </th>'.
-            "\n".'<th> Correct </th>'.
-            "\n".'<th> Wrong </th>'.
-            "\n".'</tr>';
-
-    for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
-	$Str .= '<tr>'."\n";
-        $Str .= '<td>'.($n+1).'</td>'."\n";
-        my ($currentConcept) = split('::',$Concepts->[$n]);
-        $Str .= '<td bgcolor="EEFFCC">'.$currentConcept;
-        $Str .= '</td>'."\n";
-        $Str .= '<td bgcolor="DDFFDD">'.$data1[$n].'</td>'."\n";
-        $Str .= '<td bgcolor="FFDDDD">'.$data2[$n].'</td>'."\n";
-        $Str .= '</tr>'."\n";
-    }
-    $Str .= '<td></td><td><b>From:['.localtime($ConceptData->{'Int.'.$k});
-    $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1);
-    $Str .= ']</b></td><td>'.$Correct.'</td><td>'.$Wrong.'</td>';
-    $Str .= '</table>'."\n";
+#########################################################
+#########################################################
+##
+##              Misc functions
+##
+#########################################################
+#########################################################
+sub get_problem_symb {
+    my $problemstring = shift();
+    my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/);
+    return ($symb,$partid,$resid);
+}
 
-    return $Str;
-#$Apache::lonxml::debug=1;
-#&Apache::lonhomework::showhash(%ConceptData);
-#$Apache::lonxml::debug=0;
-}
-
-#---- END Analyze Web Page ----------------------------------------------
-
-sub Decide {
-    #deciding the true or false answer belongs to each interval
-    my ($type,$concept,$time,$ConceptData)=@_; 
-    my $k=0;
-    while($time > $ConceptData->{'Int.'.($k+1)} && 
-           $k < $ConceptData->{'Interval'}) {
-        $k++;
-    }
-    $ConceptData->{$concept.'.'.$k.'.'.$type}++;
-
-    return;
-}
-
-sub InitAnalysis {
-    my ($uri,$part,$responseId,$problem,$student,$courseID)=@_;
-    my ($name,$domain)=split(/\:/,$student);
-
-    my %analyzeData;
-    # Render the student's view of the problem.  $Answ is the problem 
-    # Stringafied
-    my $Answ=&Apache::lonnet::ssi($uri,('grade_target'   => 'analyze',
-                                        'grade_username' => $name,
-                                        'grade_domain'   => $domain,
-                                        'grade_courseid' => $courseID,
-                                        'grade_symb'     => $problem));
-    my ($Answer)=&Apache::lonnet::str2hashref($Answ);
-
-    my $found = 0;
-    my @parts=();
-    if(defined($responseId)) {
-        foreach (@{$Answer->{'parts'}}) {
-            if($_ eq $part.'.'.$responseId) {
-                push(@parts, $_);
-                $found = 1;
-                last;
-            }
-        }
-    } else {
-        foreach (@{$Answer->{'parts'}}) {
-            if($_ =~ /$part/) {
-                push(@parts, $_);
-                $found = 1;
-                last;
+sub get_resource_from_symb {
+    my ($symb) = @_;
+    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
+        foreach my $res (@{$seq->{'contents'}}) {
+            if ($res->{'symb'} eq $symb) {
+                return $res;
             }
         }
     }
+    return undef;
+}
 
-    if($found == 0) {
-        $analyzeData{'error'} = 'No parts matching selected values';
-        return \%analyzeData;
-    }
-
-    my @Concepts=();
-    my %foil_to_concept;
-    foreach my $currentPart (@parts) {
-        if(defined($Answer->{$currentPart.'.concepts'})) {
-            foreach my $concept (@{$Answer->{$currentPart.'.concepts'}}) {
-                push(@Concepts, $concept);
-                foreach my $foil (@{$Answer->{$currentPart.'.concept.'.
-                                            $concept}}) {
-                    $analyzeData{$currentPart.'.foil.value.'.$foil} =
-                        $Answer->{$currentPart.'.foil.value.'.$foil};
-                    $foil_to_concept{$foil} = $concept;
+##
+## get problem data and put it into a useful data structure.
+## note: we must force each foil and option to not begin or end with
+##       spaces as they are stored without such data.
+##
+sub get_problem_data {
+    my ($url) = @_;
+    my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
+    (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
+    my %Answer;
+    %Answer=&Apache::lonnet::str2hash($Answ);
+    my %Partdata;
+    foreach my $part (@{$Answer{'parts'}}) {
+        while (my($key,$value) = each(%Answer)) {
+            next if ($key !~ /^$part/);
+            $key =~ s/^$part\.//;
+            if (ref($value) eq 'ARRAY') {
+                if ($key eq 'options') {
+                    for(my $i=0;$i<scalar(@$value);$i++) {
+                        $value->[$i]=~ s/(\s*$|^\s*)//g;
+                    }
+                    $Partdata{$part}->{'Options'}=$value;
+                } elsif ($key eq 'concepts') {
+                    $Partdata{$part}->{'Concepts'}=$value;
+                } elsif ($key =~ /^concept\.(.*)$/) {
+                    my $concept = $1;
+                    foreach my $foil (@$value) {
+                        $foil =~ s/(\s*$|^\s*)//g;
+                        $Partdata{$part}->{'Foils'}->{$foil}->{'Concept'}=
+                                                                      $concept;
+                    }
                 }
-            }
-        } else {
-            foreach (keys(%$Answer)) {
-                if(/$currentPart.foil\.value\.(.*)$/) {
-                    push(@Concepts, $1);
-                    $foil_to_concept{$1} = $1;
-                    $analyzeData{$currentPart.'.foil.value.'.$1} =
-                        $Answer->{$currentPart.'.foil.value.'.$1};
+            } else {
+                $value =~ s/(\s*$|^\s*)//g;
+                if ($key=~ /^foil\.text\.(.*)$/) {
+                    my $foil = $1;
+                    $foil =~ s/(\s*$|^\s*)//g;
+                    $Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil;
+                    $Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value;
+                } elsif ($key =~ /^foil\.value\.(.*)$/) {
+                    my $foil = $1;
+                    $foil =~ s/(\s*$|^\s*)//g;
+                    $Partdata{$part}->{'Foils'}->{$foil}->{'value'}=$value;
                 }
             }
         }
     }
-
-    $analyzeData{'parts'} = \@parts;
-    $analyzeData{'concepts'} = \@Concepts;
-    $analyzeData{'foil_to_concept'} = \%foil_to_concept;
-
-    return \%analyzeData;
-}
-
-sub Interval {
-    my ($part,$symb,$interval,$Concepts,$ConceptData)=@_;
-    my $Int=$interval;
-    my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb);
-    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; $n<(scalar @$Concepts); $n++ ) {
-	    my $tmp=$Concepts->[$n];
-	    $ConceptData->{$tmp.'.'.$i.'.true'}=0;
-	    $ConceptData->{$tmp.'.'.$i.'.false'}=0;
-	}
-    }
+    return %Partdata;
 }
+
 1;
+
 __END__