--- loncom/interface/statistics/lonstudentassessment.pm 2002/07/26 19:49:26 1.4 +++ loncom/interface/statistics/lonstudentassessment.pm 2003/02/28 21:19:00 1.30 @@ -1,12 +1,10 @@ # The LearningOnline Network with CAPA -# (Publication Handler # -# $Id: lonstudentassessment.pm,v 1.4 2002/07/26 19:49:26 stredwic Exp $ +# $Id: lonstudentassessment.pm,v 1.30 2003/02/28 21:19:00 matthew Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). -# # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or @@ -26,605 +24,535 @@ # 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 -# 5/12,5/14,5/15,5/19,5/26,7/16 Behrouz Minaei # -### +####################################################### +####################################################### -package Apache::lonstudentassessment; +=pod -use strict; -use Apache::lonhtmlcommon; -use Apache::loncoursedata; -use GDBM_File; +=head1 NAME -#my $jr; +lonstudentassessment -sub BuildStudentAssessmentPage { - my ($cacheDB,$students,$courseID,$formName,$headings,$spacing, - $studentInformation,$r,$c)=@_; -# $jr = $r; - my %cache; - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) { - $r->print('Unable to tie database.'); - return; - } - - # Remove students who don't have the proper section. - my @sectionsSelected = split(':',$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 ' ') { - $found = 1; - last; - } - } else { - if($value eq $_) { - $found = 1; - last; - } - } - } - if($found == 0) { - splice(@$students, $studentIndex, 1); - } - } - my ($infoHeadings, $infoKeys, $sequenceHeadings, $sequenceKeys, - $doNotShow) = - &ShouldShowColumns(\%cache, $headings, $studentInformation); - - my $selectedName = &FindSelectedStudent(\%cache, - $cache{'StudentAssessmentStudent'}, - $students); - $r->print(&CreateInterface(\%cache, $selectedName, $students, $formName, - $doNotShow)); +=head1 SYNOPSIS - my $Str = ''; - if($selectedName eq 'No Student Selected') { - $Str .= '

WARNING: '; - $Str .= 'Please select a student

'; - $r->print($Str); - return; - } +Presents assessment data about a student or a group of students. - $r->print(&CreateTableHeadings(\%cache, $spacing, $infoKeys, $infoHeadings, - $sequenceKeys, $sequenceHeadings)); - untie(%cache); +=head1 Subroutines - my $selected=0; - $r->print('
'."\n");
-    foreach (@$students) {
-        next if ($_ ne $selectedName && 
-                 $selectedName ne 'All Students');
-        $selected = 1;
-        my $courseData; 
-        if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
-            if($cache{$_.':lastDownloadTime'} eq 'Not downloaded') {
-                untie(%cache);
-                $courseData = 
-                    &Apache::loncoursedata::DownloadCourseInformation($_, 
-                                                                    $courseID);
-                if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
-                    &Apache::loncoursedata::ProcessStudentData(\%cache, 
-                                                             $courseData, $_);
-                    untie(%cache);
-                } else {
-                    last if($c->aborted());
-                    next;
-                }
-            } else {
-                untie(%cache);
-            }
-        } else {
-            last if($c->aborted());
-            next;
-        }
-
-        last if ($c->aborted());
-
-        if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
-            my $displayString = 'DISPLAYDATA'.$spacing;
-            $r->print(&Apache::lonhtmlcommon::FormatStudentInformation(
-                                                         \%cache, $_,
-                                                         $infoKeys,
-                                                         $displayString,
-                                                         'preformatted'));
-            $r->print(&StudentReport(\%cache, $_, $spacing, $sequenceKeys));
-            $r->print("\n");
-            untie(%cache);
-        }
-    }
-    $r->print('
'."\n"); - if($selected == 0) { - $Str .= '

WARNING: '; - $Str .= 'Please select a student

'; - $r->print($Str); - } +=over 4 - return; -} - -#---- Student Assessment Web Page -------------------------------------------- - -sub CreateInterface { - my($cache,$selectedName,$students,$formName,$doNotShow)=@_; +=cut - my $Str = ''; - $Str .= &CreateLegend(); - $Str .= ''."\n"; - $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache, - $infoKeys, - $infoHeadings, - $displayString, - 'preformatted'); - - $displayString = ''."\n"; - $Str .= &Apache::lonhtmlcommon::CreateHeadings($cache, - $sequenceKeys, - $sequenceHeadings, - $displayString, - 'preformatted'); +=pod - $Str .= ''; - $Str .= '
'."\n"; - $Str .= '{'sectionList'}); - my @selectedSections = split(':',$cache->{'sectionsSelected'}); - $Str .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections, - \@selectedSections, - 'Statistics'); - $Str .= ''; - $Str .= &CreateColumnSelectionBox($doNotShow); - $Str .= ''."\n"; - $Str .= '
DISPLAYDATA'.$spacing;
-    $displayString .= '
Total Solved/Total Problems
'."\n"; +=item &BuildStudentAssessmentPage() - return $Str; -} +Inputs: -=pod +=over 4 -=item &FormatStudentData() +=item $cacheDB The name of the cache file used to store student data -First, FormatStudentInformation is called and prefixes the course information. -This function produces a formatted string of the student's course information. -Each column of data represents all the problems for a given sequence. For -valid grade data, a link is created for that problem to a submission record -for that problem. +=item $students Array ref containing the name(s) of the students +selected for display -=over 4 +=item $courseID The ID of the course -Input: $name, $studentInformation, $ChartDB +=item $formName The name of the html form - 'Statistics' -$name: The name and domain of the current student in name:domain format +=item $headings Array ref of headings to show -$studentInformation: A pointer to an array holding the names used to -remove data from the hash. They represent -the name of the data to be removed. +=item $spacing A string of spaces -$ChartDB: The name of the cached data database which will be tied to that -database. +=item $studentInformation Array ref of possible headings for student info +('fullname','section',...) -Output: $Str +=item $r Apache Request -$Str: Formatted string that is an entire row of the chart. It is a -concatenation of student information and student course information. +=item $c Apache Connection =back =cut -sub StudentReport { - my ($cache,$name,$spacing,$showSequences)=@_; - my ($username,$domain)=split(':',$name); +####################################################### +####################################################### +sub BuildStudentAssessmentPage { + my ($r,$c)=@_; + undef($Statistics); + + # + $r->print(&CreateInterface()); + $r->rflush(); + # + $r->print(&CreateTableHeadings()); + if($c->aborted()) { return ; } + + my $Count = 0; + $r->print('
'."\n");
+    foreach my $student (@Apache::lonstatistics::Students) {
+        if($c->aborted()) { return ; }
+        $r->print(&ChartOutputStudent($student));
+        # output it
+
+        $Count++;
+        if($Count % 5 == 0) {
+            $r->print("
\n
");
+        }
 
-    my $Str = '';
-    if($cache->{$name.':error'} =~ /course/) {
-        $Str .= 'No course data for student ';
-        $Str .= ''.$username.'.
';
-        return $Str;
+        $r->rflush();
     }
+    $r->print('
'."\n"); + my $Str; + return; +} - my $Version; - my $problemsCorrect = 0; - my $totalProblems = 0; - my $problemsSolved = 0; - my $numberOfParts = 0; -# foreach my $sequence (split(':', $cache->{'orderedSequences'})) { - foreach my $sequence (@$showSequences) { - my $characterCount=0; - foreach my $problemID (split(':', $cache->{$sequence.':problems'})) { - my $problem = $cache->{$problemID.':problem'}; - my $LatestVersion = $cache->{$name.':version:'.$problem}; - - # Output dashes for all the parts of this problem if there - # is no version information about the current problem. - if(!$LatestVersion) { - foreach my $part (split(/\:/,$cache->{$sequence.':'. - $problemID. - ':parts'})) { - $Str .= ' '; - $totalProblems++; - $characterCount++; - } - next; - } +####################################################### +####################################################### - my %partData=undef; - # Initialize part data, display skips correctly - # Skip refers to when a student made no submissions on that - # part/problem. - foreach my $part (split(/\:/,$cache->{$sequence.':'. - $problemID. - ':parts'})) { - $partData{$part.':tries'}=0; - $partData{$part.':code'}=' '; - } +=pod - # Looping through all the versions of each part, starting with the - # oldest version. Basically, it gets the most recent - # set of grade data for each part. - for(my $Version=1; $Version<=$LatestVersion; $Version++) { - foreach my $part (split(/\:/,$cache->{$sequence.':'. - $problemID. - ':parts'})) { - - if(!defined($cache->{$name.":$Version:$problem". - ":resource.$part.solved"})) { - # No grade for this submission, so skip - next; - } +=item &CreateInterface() - my $tries=0; - my $code=' '; +Called by &BuildStudentAssessmentPage to create the top part of the +page which displays the chart. - $tries = $cache->{$name.':'.$Version.':'.$problem. - ':resource.'.$part.'.tries'}; - $partData{$part.':tries'}=($tries) ? $tries : 0; - - my $val = $cache->{$name.':'.$Version.':'.$problem. - ':resource.'.$part.'.solved'}; - if ($val eq 'correct_by_student') {$code = '*';} - elsif ($val eq 'correct_by_override') {$code = '+';} - elsif ($val eq 'incorrect_attempted') {$code = '.';} - elsif ($val eq 'incorrect_by_override'){$code = '-';} - elsif ($val eq 'excused') {$code = 'x';} - elsif ($val eq 'ungraded_attempted') {$code = '#';} - else {$code = ' ';} - $partData{$part.':code'}=$code; - } - } +Inputs: None - # All grades (except for versionless parts) are displayed as links - # to their submission record. Loop through all the parts for the - # current problem in the correct order and prepare the output links - $Str .= ''; - foreach(split(/\:/,$cache->{$sequence.':'.$problemID. - ':parts'})) { - if($partData{$_.':code'} eq '*') { - $problemsCorrect++; - if (($partData{$_.':tries'}<10) && - ($partData{$_.':tries'} ne '')) { - $partData{$_.':code'}=$partData{$_.':tries'}; - } - } elsif($partData{$_.':code'} eq '+') { - $problemsCorrect++; - } +Returns: A string containing the HTML for the headers and top table for +the chart page. - $Str .= $partData{$_.':code'}; - $characterCount++; +=cut - if($partData{$_.':code'} ne 'x') { - $totalProblems++; - } - } - $Str.=''; +####################################################### +####################################################### +sub CreateInterface { + my $Str = ''; +# $Str .= &CreateLegend(); + $Str .= ''."\n"; + $Str .= ''; + $Str .= ''; + $Str .= ''; + $Str .= ''; + $Str .= ''."\n"; + # + $Str .= ''."\n"; + $Str .= '
SectionsStudent DataSequences and Folders
'."\n"; + $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); + $Str .= ''; + my $only_seq_with_assessments = sub { + my $s=shift; + if ($s->{'num_assess'} < 1) { + return 0; + } else { + return 1; } - - # Output the number of correct answers for the current sequence. - # This part takes up 6 character slots, but is formated right - # justified. - my $spacesNeeded=$cache->{$sequence.':columnWidth'}-$characterCount; - $spacesNeeded -= 3; - $Str .= (' 'x$spacesNeeded); - - my $outputProblemsCorrect = sprintf( "%3d", $problemsCorrect ); - $Str .= ''.$outputProblemsCorrect.''; - $problemsSolved += $problemsCorrect; - $problemsCorrect=0; - - $Str .= $spacing; - } - - # Output the total correct problems over the total number of problems. - # I don't like this type of formatting, but it is a solution. Need - # a way to dynamically determine the space requirements. - my $outputProblemsSolved = sprintf( "%4d", $problemsSolved ); - my $outputTotalProblems = sprintf( "%4d", $totalProblems ); - $Str .= ''.$outputProblemsSolved. - ' / '.$outputTotalProblems.''; - + }; + $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple', + 5,undef); + $Str .= ''."\n"; + $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, + $only_seq_with_assessments); + $Str .= '
'."\n"; return $Str; } + +####################################################### +####################################################### + =pod -=item &CreateLegend() +=item Table Output Routines -This function returns a formatted string containing the legend for the -chart. The legend describes the symbols used to represent grades for -problems. +=over 4 =cut -sub CreateLegend { - my $Str = "

".
-              "1..9: correct by student in 1..9 tries\n".
-              "   *: correct by student in more than 9 tries\n".
-	      "   +: correct by override\n".
-              "   -: incorrect by override\n".
-	      "   .: incorrect attempted\n".
-	      "   #: ungraded attempted\n".
-              "    : not attempted\n".
-	      "   x: excused".
-              "

"; - return $Str; -} +####################################################### +####################################################### +{ + my $padding; + +####################################################### +####################################################### =pod -=item &CreateColumnSelectionBox() +=item &CreateTableHeadings() + +Create HTML for the columns of student data to show. +Called by &BuildStudentAssessmentPage(). Calls +&Apache::lonhtmlcommon::CreateHeadings(). -If there are columns not being displayed then this selection box is created -with a list of those columns. When selections are made and the page -refreshed, the columns will be removed from this box and the column is -put back in the chart. If there is no columns to select, no row is added -to the interface table. +Inputs: =over 4 -Input: $CacheData, $headings +=item $cache The ubiquitous cache + +=item $spacing A string of spaces -$CacheData: A pointer to a hash tied to the cached data +=item $infoKeys Array ref to names of keys to display from the cache +which describe students -$headings: An array of the names of the columns for the student information. -They are used for displaying which columns are missing. +=item $infoHeadings Array ref to headings of columns for student info -Output: $notThere +=item $sequenceKeys Array ref of names of keys to use to retrieve sequence +data from the cache -$notThere: The string contains one row of a table. The first column has the -name of the selection box. The second contains the selection box -which has a size of four. +=item $sequenceHeadings Array ref of names of sequences used for output. =back +Returns: A string containing the HTML of the table headings. + =cut -sub CreateColumnSelectionBox { - my ($doNotShow)=@_; +####################################################### +####################################################### +sub CreateTableHeadings { + # + $padding = ' 'x3; + # + my $Str = '

';
+    # First, the @StudentData fields need to be listed
+    my @to_show = @Apache::lonstatistics::SelectedStudentData;
+    foreach (@to_show) {
+        if ($_ eq 'all') {
+            @to_show = @Apache::lonstatistics::StudentDataOrder;
+            last;
+        }
+    }
+    foreach my $field (@to_show) {
+        my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
+        my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
+        my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
+        $Str .= $title.' 'x($width-$base).$padding;
+    }
+    # Now the selected sequences need to be listed
+    foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) {
+        foreach my $sequence (@Apache::lonstatistics::Sequences) {
+            next if ($sequence->{'symb'} ne $map_symb && $map_symb ne 'all');
+            next if ($sequence->{'num_assess'} < 1);
+            my $title = $sequence->{'title'};
+            my $base  = $sequence->{'base_width'};
+            my $width = $sequence->{'width'};
+            $Str .= $title.' 'x($width-$base).$padding;
+        }
+    }
+    $Str .= 'total';
+    $Str .= "
\n"; + return $Str; +} - my $notThere = ''; - $notThere .= ''; +=item &ChartOutputStudent($student) - return $notThere; -} +Return a line of the chart for a student. -=pod +=cut -=item &CreateColumnSelectors() +####################################################### +####################################################### +sub ChartOutputStudent { + my $student = shift; + my $Str = ''; + # First, the @StudentData fields need to be listed + my @to_show = @Apache::lonstatistics::SelectedStudentData; + foreach (@to_show) { + if ($_ eq 'all') { + @to_show = @Apache::lonstatistics::StudentDataOrder; + last; + } + } + foreach my $field (@to_show) { + my $title=$student->{$field}; + my $base =scalar(my @Tmp = split(//,$title)); + my $width=$Apache::lonstatistics::StudentData{$field}->{'width'}; + $Str .= $title.' 'x($width-$base).$padding; + } + # Get ALL the students data + my %StudentsData; + my @tmp = &Apache::loncoursedata::get_current_state + ($student->{'username'},$student->{'domain'},undef, + $ENV{'request.course.id'}); + if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) { + %StudentsData = @tmp; + } + if (scalar(@tmp) < 1) { + $Str .= 'No Course Data'."\n"; + return $Str; + } + # + # By sequence build up the data + my $studentstats; + foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) { + foreach my $seq (@Apache::lonstatistics::Sequences) { + next if ($map_symb ne $seq->{'symb'} && $map_symb ne 'all'); + next if ($seq->{'num_assess'} < 1); + my ($performance,$score,$seq_max) = + &StudentPerformanceOnSequence($student,\%StudentsData, + $seq,'linkify'); + $Str .= $performance.$padding; + $studentstats->{$seq->{'symb'}}->{'score'}= $score; + $studentstats->{$seq->{'symb'}}->{'max'} = $seq_max; + } + } + # + # Total it up and store the statistics info. + my ($score,$max) = (0,0); + while (my ($symb,$seq_stats) = each (%{$studentstats})) { + $Statistics->{$symb}->{'score'} += $seq_stats->{'score'}; + $Statistics->{$symb}->{'max'} += $seq_stats->{'max'}; + $score += $seq_stats->{'score'}; + $max += $seq_stats->{'max'}; + } + my $scorelength = scalar(my @tmp1 = split(//,$score)); + my $maxlength = scalar(my @tmp2 = split(//,$max)); + $Str .= ' '.' 'x($maxlength-$scorelength).$score.'/'.$max; + $Str .= " \n"; + return $Str; +} -This function generates the checkboxes above the column headings. The -column will be removed if the checkbox is unchecked. +####################################################### +####################################################### -=over 4 +=pod -Input: $CacheData, $headings +=back -$CacheData: A pointer to a hash tied to the cached data +=cut -$headings: An array of the names of the columns for the student -information. They are used to know what are the student information columns +####################################################### +####################################################### -Output: $present +} -$present: The string contains the first row of a table. Each column contains -a checkbox which is left justified. Currently left justification is used -for consistency of location over the column in which it presides. +####################################################### +####################################################### -=back +=pod -=cut +=item &StudentPerformanceOnSequence() -sub CreateColumnSelectors { - my ($infoHeadings, $sequenceHeadings, $sequenceKeys)=@_; +Inputs: - my $present = ''; - for(my $index=0; $index<(scalar @$infoHeadings); $index++) { - $present .= ''; - $present .= '[$index].'" />'; - $present .= ''."\n"; - } +=over 4 - for(my $index=0; $index<(scalar @$sequenceHeadings); $index++) { - $present .= ''; - $present .= '[$index].'" />'; - $present .= ''."\n"; - } +=item $student - return $present; -} +=item $studentdata Hash ref to all student data -#---- END Student Assessment Web Page ---------------------------------------- +=item $seq Hash ref, the sequence we are working on -#---- Student Assessment Worker Functions ------------------------------------ +=item $links if defined we will output links to each resource. -sub FindSelectedStudent { - my($cache, $selectedName, $students)=@_; +=back - if($selectedName eq 'All Students' || - $selectedName eq 'No Student Selected') { - return $selectedName; - } +=cut - for(my $index=0; $index<(scalar @$students); $index++) { - my $fullname = $cache->{$students->[$index].':fullname'}; - if($fullname eq $selectedName) { - if($cache->{'StudentAssessmentMove'} eq 'next') { - if($index == ((scalar @$students) - 1)) { - $selectedName = $students->[0]; - return $selectedName; +####################################################### +####################################################### +sub StudentPerformanceOnSequence { + my ($student,$studentdata,$seq,$links) = @_; + my $Str = ''; + my $output_width = 0; + my ($sum,$max) = (0,0); + foreach my $resource (@{$seq->{'contents'}}) { + next if ($resource->{'type'} ne 'assessment'); + my $resource_data = $studentdata->{$resource->{'symb'}}; + my $value = ''; + foreach my $partnum (@{$resource->{'parts'}}) { + $max++; + my $symbol = ' '; # default to space + # + if (exists($resource_data->{'resource.'.$partnum.'.solved'})) { + my $status = $resource_data->{'resource.'.$partnum.'.solved'}; + if ($status eq 'correct_by_override') { + $symbol = '+'; + $sum++; + } elsif ($status eq 'incorrect_by_override') { + $symbol = '-'; + } elsif ($status eq 'ungraded_attempted') { + $symbol = '#'; + } elsif ($status eq 'incorrect_attempted') { + $symbol = '.'; + } elsif ($status eq 'excused') { + $symbol = 'x'; + $max--; + } elsif ($status eq 'correct_by_student' && + exists($resource_data->{'resource.'.$partnum.'.tries'})){ + my $num = $resource_data->{'resource.'.$partnum.'.tries'}; + if ($num > 9) { + $symbol = '*'; + } elsif ($num > 0) { + $symbol = $num; + } else { + $symbol = ' '; + } + $sum++; } else { - $selectedName = $students->[$index+1]; - return $selectedName; + $symbol = ' '; } - } elsif($cache->{'StudentAssessmentMove'} eq 'previous') { - if($index == 0) { - $selectedName = $students->[-1]; - return $selectedName; + } else { + # Unsolved. Did they try? + if (exists($resource_data->{'resource.'.$partnum.'.tries'})){ + $symbol = '.'; } else { - $selectedName = $students->[$index-1]; - return $selectedName; + $symbol = ' '; } - } else { - $selectedName = $students->[$index]; - return $selectedName; } - last; + # + $output_width++; + if (defined($links) && $symbol ne ' ') { + $symbol = ''.$symbol.''; + } + $value .= $symbol; } + $Str .= $value; } - - return 'No Student Selected'; + # Put on the totals + my $ratio = $sum.'/'.$max; + my $ratio_length = scalar(my @tmp1 = split(//,$ratio)); + # Pad with extra spaces + my $width = $seq->{'width'}; + $Str .= ' 'x($width-$output_width-$ratio_length).$ratio; + # + return ($Str,$sum,$max); } -=pod - -=item &ShouldShowColumn() - -Determine if a specified column should be shown on the chart. +####################################################### +####################################################### +sub StudentAverageTotal { + my ($cache, $students, $sequenceKeys)=@_; + my $Str = "\nSummary Tables:\n"; + my %Correct = (); + my $ProblemsSolved = 0; + my $TotalProblems = 0; + my $StudentCount = 0; + + foreach my $name (@$students) { + $StudentCount++; + foreach my $sequence (@$sequenceKeys) { + $Correct{$sequence} += + $cache->{$name.':'.$sequence.':problemsCorrect'}; + } + $ProblemsSolved += $cache->{$name.':problemsSolved'}; + $TotalProblems += $cache->{$name.':totalProblems'}; + } + if ($StudentCount) { + $ProblemsSolved = sprintf( "%.2f", + $ProblemsSolved/$StudentCount); + $TotalProblems /= $StudentCount; + } else { + $ProblemsSolved = 0; + $TotalProblems = 0; + } + + $Str .= ''."\n"; + $Str .= ''."\n"; + $Str .= ''."\n"; + $Str .= ''."\n"; + $Str .= '
Students Count'. + $StudentCount.'
Total Problems'. + $TotalProblems.'
Average Correct'. + $ProblemsSolved.'
'."\n"; + + $Str .= ''."\n"; + $Str .= ''. + ''."\n"; + foreach my $S(@$sequenceKeys) { + my $title=$cache->{$S.':title'}; + #$Str .= $cache->{$S.':problems'}; + #my @problems=split(':', $cache->{$S.':problems'}); + #my $pCount=scalar @problems; + my $pCount=MaxSeqPr($cache,@$students[0],$S); + my $crr; + if ($StudentCount) { + $crr=sprintf( "%.2f", $Correct{$S}/$StudentCount ); + } else { + $crr="0.00"; + } + $Str .= ''."\n"; + } -=over 4 + $Str .= '
TitleTotal ProblemsAverage Correct
'.$title. + ''.$pCount. + ''.$crr. + '
'."\n"; -Input: $cache, $test + return $Str; +} -$cache: A pointer to the hash tied to the cached data +####################################################### +####################################################### -$test: The form name of the column (heading.$headingIndex) or -(sequence.$sequenceIndex) +=pod -Output: 0 (false), 1 (true) +=item &CreateLegend() -=back +This function returns a formatted string containing the legend for the +chart. The legend describes the symbols used to represent grades for +problems. =cut -sub ShouldShowColumns { - my ($cache,$headings,$cacheKey)=@_; +####################################################### +####################################################### +sub CreateLegend { + my $Str = "

".
+              "   1  correct by student in 1 try\n".
+              "   7  correct by student in 7 tries\n".
+              "   *  correct by student in more than 9 tries\n".
+	      "   +  correct by hand grading or override\n".
+              "   -  incorrect by override\n".
+	      "   .  incorrect attempted\n".
+	      "   #  ungraded attempted\n".
+              "      not attempted (blank field)\n".
+	      "   x  excused".
+              "

"; + return $Str; +} - my @infoKeys=(); - my @infoHeadings=(); +####################################################### +####################################################### - my @sequenceKeys=(); - my @sequenceHeadings=(); +=pod - my %doNotShow; - - my $index; - my $count = 0; - my $check = ''; - for($index=0; $index < scalar @$headings; $index++) { - $check = 'HeadingColumn'.$headings->[$index]; - if($cache->{'HeadingsFound'} =~ /$check/) { - push(@infoHeadings, $headings->[$index]); - push(@infoKeys, $cacheKey->[$index]); - } else { - $doNotShow{$count.':name'} = $headings->[$index]; - $doNotShow{$count.':id'} = 'HeadingColumn'.$headings->[$index]; - $count++; - } - } - - foreach my $sequence (split(/\:/,$cache->{'orderedSequences'})) { - $check = 'SequenceColumn'.$sequence; - if($cache->{'SequencesFound'} eq 'All Sequences' || - $cache->{'SequencesFound'} =~ /$check/) { - push(@sequenceHeadings, $cache->{$sequence.':title'}); - push(@sequenceKeys, $sequence); - } else { - $doNotShow{$count.':name'} = $cache->{$sequence.':title'}; - $doNotShow{$count.':id'} = 'SequenceColumn'.$sequence; - $count++; - } - } - - $doNotShow{'count'} = $count; +=back - return (\@infoHeadings, \@infoKeys, \@sequenceHeadings, - \@sequenceKeys, \%doNotShow); -} +=cut -#---- END Student Assessment Worker Functions -------------------------------- +####################################################### +####################################################### 1; + __END__