--- loncom/interface/statistics/lonproblemanalysis.pm 2002/09/07 23:07:38 1.10 +++ loncom/interface/statistics/lonproblemanalysis.pm 2003/10/21 16:00:30 1.44 @@ -1,7 +1,6 @@ # 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 1.44 2003/10/21 16:00:30 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,507 +24,1368 @@ # # 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(); +use Time::Local(); +use Spreadsheet::WriteExcel(); + +my $plotcolors = ['#33ff00', + '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933', + '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66', + ]; sub BuildProblemAnalysisPage { - my ($cacheDB, $r)=@_; - - my %cache; - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { - $r->print('Unable to tie database.'); - return; - } - - my $Ptr = ''; - $Ptr .= ''; - $Ptr .= ''."\n"; - $Ptr .= ''."\n"; - $Ptr .= ''."\n"; - $Ptr .= '
Select Sections'; - $Ptr .= ''."\n"; - my @sectionsSelected = split(':',$cache{'sectionsSelected'}); - my @sections = split(':',$cache{'sectionList'}); - $Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections, - \@sectionsSelected, - 'Statistics'); - $Ptr .= '
Intervals'; - $Ptr .= &IntervalOptions($cache{'Interval'}); - $Ptr .= '

'; - $r->print($Ptr); + my ($r,$c)=@_; + $r->print('

'.&mt('Option Response Problem Analysis').'

'); + $r->print(&CreateInterface()); + # + my @Students = @Apache::lonstatistics::Students; + # + if (exists($ENV{'form.ClearCache'}) || + 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(''); + } else { + $r->print(''); + } $r->rflush(); - $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache, $r)); - - untie(%cache); - - return; + if (exists($ENV{'form.problemchoice'}) && + ! exists($ENV{'form.SelectAnother'})) { + $r->print(''); + $r->print(' 'x5); + $r->print(''); + $r->print(' 'x5); + $r->print(''); + $r->print(' 'x5); + $r->print(''); + $r->print(''); + $r->print(' 'x5); + $r->print(''); + $r->print(' 'x5); + # + $r->print('
'); + # + my ($symb,$part,$resid) = &get_problem_symb( + &Apache::lonnet::unescape($ENV{'form.problemchoice'}) + ); + $r->rflush(); + # + my $resource = &get_resource_from_symb($symb); + if (defined($resource)) { + $r->print('

'.$resource->{'title'}.'

'); + $r->print('

'.$resource->{'src'}.'

'); + $r->rflush(); + my %Data = &get_problem_data($resource->{'src'}); + my $PerformanceData = + &Apache::loncoursedata::get_optionresponse_data + (\@Students,$symb,$resid); + my $ORdata = $Data{$part.'.'.$resid}; + if (exists($ENV{'form.ExcelOutput'}) && + defined($PerformanceData)) { + my $result = &prepare_excel_sheet($r,$resource, + $PerformanceData,$ORdata); + $r->print($result); + $r->rflush(); + } + ## + ## 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; + $r->print('
'. + ''. + $rendered_problem. + '
'); + $r->rflush(); + if (! exists($ENV{'form.ExcelOutput'})) { + ## + ## Analyze the problem + if (defined($PerformanceData) && + ref($PerformanceData) eq 'ARRAY') { + if ($ENV{'form.AnalyzeOver'} eq 'Tries') { + my $analysis_html = &tries_analysis($r, + $PerformanceData, + $ORdata); + $r->print($analysis_html); + $r->rflush(); + } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { + my $analysis_html = &time_analysis($PerformanceData, + $ORdata); + $r->print($analysis_html); + $r->rflush(); + } else { + $r->print('

'. + &mt('The analysis you have selected is '. + 'not supported at this time'). + '

'); + } + } else { + $r->print('

'. + &mt('There is no student data for this problem.'). + '

'); + } + } + } else { + $r->print('resource is undefined'); + } + $r->print('
'); + } else { + $r->print(''); + $r->print(' 'x5); + $r->print('

'.&mt('Please select a problem to analyze').'

'); + $r->print(&OptionResponseProblemSelector()); + } } -sub BuildAnalyzePage { - my ($cacheDB, $students, $courseID,$r)=@_; +######################################################### +######################################################### +## +## Misc interface routines use by analysis code +## +######################################################### +######################################################### +sub build_foil_index { + my ($ORdata) = @_; + return if (! exists($ORdata->{'Foils'})); + 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 $a1 = lc($a); + my $b1 = lc($b); + if (exists($Numbers{$a})) { + $a1 = $Numbers{$a}; + } + if (exists($Numbers{$b})) { + $b1 = $Numbers{$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 = ''."\n"; + if (@Concepts > 1) { + $table .= ''. + ''. + ''. + ''. + ''. + ''. + ''. + "\n"; + } else { + $table .= ''. + ''. + ''. + ''. + ''. + "\n"; + } + my $conceptindex = 1; + my $foilindex = 1; + foreach my $concept (@Concepts) { + my @FoilsInConcept = @{$concept->{'foils'}}; + my $firstfoil = shift(@FoilsInConcept); + if (@Concepts > 1) { + $table .= ''. + ''. + ''. + ''. + ''. + ''. + ''. + "\n"; + } else { + $table .= ''. + ''. + ''. + ''. + ''. + "\n"; + } + foreach my $foilid (@FoilsInConcept) { + if (@Concepts > 1) { + $table .= ''. + ''. + ''. + ''. + ''. + ''. + ''. + "\n"; + } else { + $table .= ''. + ''. + ''. + ''. + ''. + "\n"; + } + } continue { + $foilindex++; + } + } continue { + $conceptindex++; + } + $table .= "
'.&mt('Concept Number').''.&mt('Concept').''.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.$conceptindex.''.$concept->{'name'}.''.$foilindex++.''.$Foildata{$firstfoil}->{'name'}.''.$Foildata{$firstfoil}->{'text'}.''.$Foildata{$firstfoil}->{'value'}.'
'.$foilindex++.''.$Foildata{$firstfoil}->{'name'}.''.$Foildata{$firstfoil}->{'text'}.''.$Foildata{$firstfoil}->{'value'}.'
'.$foilindex.''.$Foildata{$foilid}->{'name'}.''.$Foildata{$foilid}->{'text'}.''.$Foildata{$foilid}->{'value'}.'
'.$foilindex.''.$Foildata{$foilid}->{'name'}.''.$Foildata{$foilid}->{'text'}.''.$Foildata{$foilid}->{'value'}.'
\n"; + # + # Build option index with color stuff + return ($table,\@Foils,\@Concepts); +} - $jr = $r; - my $c = $r->connection; +sub build_option_index { + my ($ORdata)= @_; + my $table = "\n"; + my $optionindex = 0; + my @Rows; + foreach my $option (&mt('correct option chosen'),@{$ORdata->{'Options'}}) { + push (@Rows, + ''. + ''. + ''. + "\n"); + } + shift(@Rows); # Throw away 'correct option chosen' color + $table .= join('',reverse(@Rows)); + $table .= "
'. + (' 'x4).''.$option.'
\n"; +} - my $Str = ''; - my %cache; +######################################################### +######################################################### +## +## Tries Analysis +## +######################################################### +######################################################### +sub tries_analysis { + my ($r,$PerformanceData,$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 = '

'. + &mt('Not enough data for concept analysis. '. + 'Performing Foil Analysis'). + '

'.$table; + $ENV{'form.AnalyzeAs'} = 'Foils'; + } + my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData, + $mintries,$maxtries); + my $analysis = ''; + if ($ENV{'form.AnalyzeAs'} eq 'Foils') { + $analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils, + \%ResponseData,$ORdata); + } else { + $analysis = &Tries_Concept_Analysis($mintries,$maxtries, + $Concepts,\%ResponseData,$ORdata); + } + $table .= $analysis; + return $table; +} - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { - $Str .= 'Unable to tie database.'; - $r->print($Str); - 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 ' ') { - $found = 1; - last; +sub Tries_Foil_Analysis { + my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_; + my %ResponseData = %$respdat; + # + # Compute the data neccessary to make the plots + my @PlotData; + foreach my $foilid (@$Foils) { + for (my $i=$mintries;$i<=$maxtries;$i++) { + if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { + push(@{$PlotData[$i]->{'_correct'}},0); + } else { + push(@{$PlotData[$i]->{'_correct'}}, + 100*$ResponseData{$foilid}->[$i]->{'_correct'}/ + $ResponseData{$foilid}->[$i]->{'_total'}); + } + foreach my $option (@{$ORdata->{'Options'}}) { + push(@{$PlotData[$i]->{'_total'}}, + $ResponseData{$foilid}->[$i]->{'_total'}); + if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { + push (@{$PlotData[$i]->{$option}},0); + } else { + if ($ResponseData{$foilid}->[$i]->{'_total'} == + $ResponseData{$foilid}->[$i]->{'_correct'}) { + push(@{$PlotData[$i]->{$option}},0); + } else { + push (@{$PlotData[$i]->{$option}}, + 100 * $ResponseData{$foilid}->[$i]->{$option} / + ($ResponseData{$foilid}->[$i]->{'_total'} - + $ResponseData{$foilid}->[$i]->{'_correct'})); + } } + } + } + } + # + # Build a table for the plots + my $analysis_html = "\n"; + my $foilkey = &build_option_index($ORdata); + for (my $i=$mintries;$i<=$maxtries;$i++) { + my $count = $ResponseData{'_total'}->[$i]; + if ($count == 0) { + $count = 'no submissions'; + } elsif ($count == 1) { + $count = '1 submission'; + } else { + $count = $count.' submissions'; + } + my $title = 'Attempt '.$i.', '.$count; + my @Datasets; + foreach my $option ('_correct',@{$ORdata->{'Options'}}) { + next if (! exists($PlotData[$i]->{$option})); + push(@Datasets,$PlotData[$i]->{$option}); + } + my $correctgraph = &Apache::loncommon::DrawGraph + ($title,'Foil Number','Percent Correct', + 100,$plotcolors,$Datasets[0]); + $analysis_html.= ''; + ## + ## + for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) { + $Datasets[0]->[$i]=0; + } + $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i]; + if ($count == 0) { + $count = 'no submissions'; + } elsif ($count == 1) { + $count = '1 submission'; + } else { + $count = $count.' submissions'; + } + $title = 'Attempt '.$i.', '.$count; + my $incorrectgraph = &Apache::loncommon::DrawGraph + ($title,'Foil Number','% Option Chosen Incorrectly', + 100,$plotcolors,@Datasets); + $analysis_html.= ''; + $analysis_html.= '\n"; + } + $analysis_html .= "
'.$correctgraph.''.$incorrectgraph.''.$foilkey."
\n"; + return $analysis_html; +} + +sub Tries_Concept_Analysis { + my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_; + my %ResponseData = %$respdat; + my $analysis_html = "\n"; + # + # Compute the data neccessary to make the plots + my @PlotData; + # 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. + 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[$i]->{'_correct'}},0); } else { - if($value eq $_) { - $found = 1; - last; + push (@{$PlotData[$i]->{'_correct'}}, + 100*$cdata->{'_correct'}/$cdata->{'_total'}); } + } + } + # Build a table for the 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 = $count; } } - if($found == 0) { - splice(@$students, $studentIndex, 1); + $maxstu = 0 if (! defined($maxstu)); + $minstu = 0 if (! defined($minstu)); + my $title; + my $count = $ResponseData{'_total'}->[$i]; + if ($count == 0) { + $count = 'no submissions'; + } elsif ($count == 1) { + $count = '1 submission'; + } else { + $count = $count.' submissions'; } + $title = 'Attempt '.$i.', '.$count; + my $graphlink = &Apache::loncommon::DrawGraph + ($title,'Concept Number','Percent Correct', + 100,$plotcolors,$PlotData[$i]->{'_correct'}); + $analysis_html.= '\n"; } - unless(untie(%cache)) { - $r->print('Can not untie hash.'); - $r->rflush(); + $analysis_html .= "
'.$graphlink."
\n"; + return $analysis_html; +} + +sub analyze_option_data_by_tries { + my ($r,$PerformanceData,$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 $tries = &get_tries_from_row($row); + my %Row = &Process_Row($row); + next if (! %Row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $Trydata{$foilid}->[$tries] += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $Trydata{$foilid}->[$tries]->{$option}+=$value; + } + } } + return %Trydata; +} - my $error = - &Apache::loncoursedata::DownloadStudentCourseDataSeparate($students, - 'true', - $cacheDB, - 'true', - 'true', - $courseID, - $r, $c); - if($error ne 'OK') { - $r->print($error.'
Error downloading course data
'); - return; +######################################################### +######################################################### +## +## Time Analysis +## +######################################################### +######################################################### +sub time_analysis { + my ($PerformanceData,$ORdata) = @_; + my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); + if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { + $table = '

'. + &mt('Not enough data for concept analysis. '. + 'Performing Foil Analysis'). + '

'.$table; + $ENV{'form.AnalyzeAs'} = 'Foils'; + } + my $num_plots = $ENV{'form.NumPlots'}; + my $num_data = scalar(@$PerformanceData)-1; + my $percent = sprintf('%2f',100/$num_plots); + # + $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); + if (! defined($starttime) || ! defined($endtime)) { + my $sec_in_day = 86400; + my $last_sub_time = &get_time_from_row($PerformanceData->[-1]); + my ($sday,$smon,$syear); + (undef,undef,undef,$sday,$smon,$syear) = + localtime($last_sub_time - $sec_in_day*$i); + $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear); + $endtime = $starttime + $sec_in_day; + if ($i == ($num_plots -1 )) { + $starttime = &get_time_from_row($PerformanceData->[0]); + } + } + my $startdateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','startdate_'.$i,$starttime); + my $enddateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','enddate_'.$i,$endtime); + # + my $begin_index; + my $end_index; + my $j; + while (++$j < scalar(@$PerformanceData)) { + last if (&get_time_from_row($PerformanceData->[$j]) > $starttime); + } + $begin_index = $j; + while (++$j < scalar(@$PerformanceData)) { + last if (&get_time_from_row($PerformanceData->[$j]) > $endtime); + } + $end_index = $j; + ## + my $interval = { + begin_index => $begin_index, + end_index => $end_index, + startdateform => $startdateform, + enddateform => $enddateform, + }; + if ($ENV{'form.AnalyzeAs'} eq 'Foils') { + $table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils, + $interval); + } else { + $table .= &Concept_Time_Analysis($PerformanceData,$ORdata, + $Concepts,$interval); + } } + # + return $table; +} +sub Foil_Time_Analysis { + my ($PerformanceData,$ORdata,$Foils,$interval) = @_; + my $analysis_html; + my $foilkey = &build_option_index($ORdata); + my ($begin_index,$end_index) = ($interval->{'begin_index'}, + $interval->{'end_index'}); + my %TimeData; + # + # Compute the number getting the foils correct or incorrects + for (my $j=$begin_index;$j<=$end_index;$j++) { + my $row = $PerformanceData->[$j]; + next if (! defined($row)); + my %Row = &Process_Row($row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $TimeData{$foilid} += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $TimeData{$foilid}->{$option}+=$value; + } + } + } + my @Plotdata; + foreach my $foil (@$Foils) { + my $total = $TimeData{$foil}->{'_total'}; + if ($total == 0) { + push(@{$Plotdata[0]},0); + } else { + push(@{$Plotdata[0]}, + 100 * $TimeData{$foil}->{'_correct'} / $total); + } + my $total_incorrect = $total - $TimeData{$foil}->{'_correct'}; + my $optionidx = 1; + foreach my $option (@{$ORdata->{'Options'}}) { + if ($total_incorrect == 0) { + push(@{$Plotdata[$optionidx]},0); + } else { + push(@{$Plotdata[$optionidx]}, + 100 * $TimeData{$foil}->{$option} / $total_incorrect); + } + } continue { + $optionidx++; + } + } + # + # Create the plot + my $count = $end_index-$begin_index; + my $title; + if ($count == 0) { + $title = 'no submissions'; + } elsif ($count == 1) { + $title = 'one submission'; + } else { + $title = $count.' submissions'; + } + my $correctplot = &Apache::loncommon::DrawGraph($title, + 'Foil Number', + 'Percent Correct', + 100, + $plotcolors, + $Plotdata[0]); + for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) { + $Plotdata[0]->[$j]=0; + } + $count = $end_index-$begin_index-$TimeData{'_correct'}; + if ($count == 0) { + $title = 'no submissions'; + } elsif ($count == 1) { + $title = 'one submission'; + } else { + $title = $count.' submissions'; + } + my $incorrectplot = &Apache::loncommon::DrawGraph($title, + 'Foil Number', + 'Incorrect Option Choice', + 100, + $plotcolors, + @Plotdata); + $analysis_html.=''. + ''. + ''. + ''."\n"; + $analysis_html.= ''.''. + "\n"; + return $analysis_html; +} - unless(tie(%cache,'GDBM_File',$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 = $cache{'Interval'}; +sub Concept_Time_Analysis { + my ($PerformanceData,$ORdata,$Concepts,$interval) = @_; + my $analysis_html; + ## + ## Determine starttime, endtime, startindex, endindex + my ($begin_index,$end_index) = ($interval->{'begin_index'}, + $interval->{'end_index'}); + my %TimeData; + # + # Compute the number getting the foils correct or incorrects + for (my $j=$begin_index;$j<=$end_index;$j++) { + my $row = $PerformanceData->[$j]; + next if (! defined($row)); + my %Row = &Process_Row($row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $TimeData{$foilid} += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $TimeData{$foilid}->{$option}+=$value; + } + } + } + # + # Put the data in plottable form + my @Plotdata; + foreach my $concept (@$Concepts) { + my ($total,$correct); + foreach my $foil (@{$concept->{'foils'}}) { + $total += $TimeData{$foil}->{'_total'}; + $correct += $TimeData{$foil}->{'_correct'}; + } + if ($total == 0) { + push(@Plotdata,0); + } else { + push(@Plotdata,100 * $correct / $total); + } + } + # + # Create the plot + my $title = ($end_index - $begin_index).' submissions'; + my $correctplot = &Apache::loncommon::DrawGraph($title, + 'Concept Number', + 'Percent Correct', + 100, + $plotcolors, + \@Plotdata); + $analysis_html.=''. + ''. + ''. + "\n"; + return $analysis_html; +} - my %ConceptData; - $ConceptData{"Interval"} = $interval; +######################################################### +######################################################### +## +## Excel output +## +######################################################### +######################################################### +sub prepare_excel_sheet { + my ($r,$resource,$PerformanceData,$ORdata) = @_; + my $response = ''; + my (undef,$Foils,$Concepts) = &build_foil_index($ORdata); + # + # Create excel worksheet + my $filename = '/prtspool/'. + $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. + time.'_'.rand(1000000000).'.xls'; + my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename); + if (! defined($workbook)) { + $r->log_error("Error creating excel spreadsheet $filename: $!"); + $r->print('

'.&mt("Unable to create new Excel file. ". + "This error has been logged. ". + "Please alert your LON-CAPA administrator"). + '

'); + return undef; + } + # + $workbook->set_tempdir('/home/httpd/perl/tmp'); + # + # Define some potentially useful formats + my $format; + $format->{'header'} = $workbook->add_format(bold => 1, + bottom => 1, + align => 'center'); + $format->{'bold'} = $workbook->add_format(bold=>1); + $format->{'h1'} = $workbook->add_format(bold=>1, size=>18); + $format->{'h2'} = $workbook->add_format(bold=>1, size=>16); + $format->{'h3'} = $workbook->add_format(bold=>1, size=>14); + $format->{'date'} = $workbook->add_format(num_format=> + 'mmm d yyyy hh:mm AM/PM'); + # + # Create and populate main worksheets + my $problem_data_sheet = $workbook->addworksheet('Problem Data'); + my $student_data_sheet = $workbook->addworksheet('Student Data'); + my $response_data_sheet = $workbook->addworksheet('Response Data'); + foreach my $sheet ($problem_data_sheet,$student_data_sheet, + $response_data_sheet) { + $sheet->write(0,0,$resource->{'title'},$format->{'h2'}); + $sheet->write(1,0,$resource->{'src'},$format->{'h3'}); + } + # + my $result; + $result = &build_problem_data_worksheet($problem_data_sheet,$format, + $Concepts,$ORdata); + if ($result ne 'okay') { + # Do something useful + } + $result = &build_student_data_worksheet($student_data_sheet,$format); + if ($result ne 'okay') { + # Do something useful + } + $result = &build_response_data_worksheet($response_data_sheet,$format, + $PerformanceData,$Foils, + $ORdata); + if ($result ne 'okay') { + # Do something useful + } + $response_data_sheet->activate(); + # + # Close the excel file + $workbook->close(); + # + # Write a link to allow them to download it + $result .= '

'.&mt('Excel Raw Data Output').'

'. + '

'. + &mt('Your Excel spreadsheet.'). + '

'."\n"; + return $result; +} - #Initialize the option response true answers - my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem, - $students->[0], $courseID); - if(defined($analyzeData->{'error'})) { - $Str .= $analyzeData->{'error'}.'
Incorrect part requested.
'; - $r->print($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; - $Str .= '
'.$uri.''; - - $r->print($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); - } - - $Str .= '
'; - 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 = ''; - } - my $Answ=&Apache::lonnet::ssi($uri); - $Str .= '
Here you can see the Problem:
'.$Answ; - $Str .= ''; - $r->print($Str); +sub build_problem_data_worksheet { + my ($worksheet,$format,$Concepts,$ORdata) = @_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'}); + ## + ## + my @Headers; + if (@$Concepts > 1) { + @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber", + 'Foil Name','Foil Text','Correct value'); + } else { + @Headers = ('Foil Number','FoilName','Foil Text','Correct value'); + } + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + my %Foildata = %{$ORdata->{'Foils'}}; + my $conceptindex = 1; + my $foilindex = 1; + foreach my $concept (@$Concepts) { + my @FoilsInConcept = @{$concept->{'foils'}}; + my $firstfoil = shift(@FoilsInConcept); + if (@$Concepts > 1) { + $worksheet->write_row($rows_output++,0, + [$conceptindex, + $concept->{'name'}, + $foilindex++, + $Foildata{$firstfoil}->{'name'}, + $Foildata{$firstfoil}->{'text'}, + $Foildata{$firstfoil}->{'value'},]); + } else { + $worksheet->write_row($rows_output++,0, + [ $foilindex++, + $Foildata{$firstfoil}->{'name'}, + $Foildata{$firstfoil}->{'text'}, + $Foildata{$firstfoil}->{'value'},]); + } + foreach my $foilid (@FoilsInConcept) { + if (@$Concepts > 1) { + $worksheet->write_row($rows_output++,0, + ['', + '', + $foilindex, + $Foildata{$foilid}->{'name'}, + $Foildata{$foilid}->{'text'}, + $Foildata{$foilid}->{'value'},]); + } else { + $worksheet->write_row($rows_output++,0, + [$foilindex, + $Foildata{$foilid}->{'name'}, + $Foildata{$foilid}->{'text'}, + $Foildata{$foilid}->{'value'},]); + } + } continue { + $foilindex++; + } + } continue { + $conceptindex++; + } + $rows_output++; + $rows_output++; + ## + ## Option data output + $worksheet->write($rows_output++,0,'Options',$format->{'header'}); + foreach my $string (@{$ORdata->{'Options'}}) { + $worksheet->write($rows_output++,0,$string); + } + return 'okay'; +} - untie(%cache); +sub build_student_data_worksheet { + my ($worksheet,$format) = @_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'}); + my @Headers = ('full name','username','domain','section', + "student\nnumber",'identifier'); + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + my @Students = @Apache::lonstatistics::Students; + my $studentrows = &Apache::loncoursedata::get_student_data(\@Students); + my %ids; + foreach my $row (@$studentrows) { + my ($mysqlid,$student) = @$row; + $ids{$student}=$mysqlid; + } + foreach my $student (@Students) { + my $name_domain = $student->{'username'}.':'.$student->{'domain'}; + $worksheet->write_row($rows_output++,0, + [$student->{'fullname'}, + $student->{'username'},$student->{'domain'}, + $student->{'section'},$student->{'id'}, + $ids{$name_domain}]); + } + return; +} +sub build_response_data_worksheet { + my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'}); + $worksheet->set_column(1,1,20); + $worksheet->set_column(2,2,13); + my @Headers = ('identifier','time','award detail','attempt'); + foreach my $foil (@$Foils) { + push (@Headers,$foil.' submission'); + push (@Headers,$foil.' grading'); + } + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + # + foreach my $row (@$PerformanceData) { + next if (! defined($row)); + my ($student,$award,$grading,$submission,$time,$tries) = @$row; + my @Foilgrades = split('&',$grading); + my @Foilsubs = split('&',$submission); + my %ResponseData; + for (my $j=0;$j<=$#Foilgrades;$j++) { + my ($foilid,$correct) = split('=',$Foilgrades[$j]); + my (undef,$submission) = split('=',$Foilsubs[$j]); + $submission = &Apache::lonnet::unescape($submission); + $ResponseData{$foilid.' submission'}=$submission; + $ResponseData{$foilid.' award'}=$correct; + } + $worksheet->write($rows_output,$cols_output++,$student); + $worksheet->write($rows_output,$cols_output++, + &calc_serial($time),$format->{'date'}); + $worksheet->write($rows_output,$cols_output++,$award); + $worksheet->write($rows_output,$cols_output++,$tries); + foreach my $foilid (@$Foils) { + $worksheet->write($rows_output,$cols_output++, + $ResponseData{$foilid.' submission'}); + $worksheet->write($rows_output,$cols_output++, + $ResponseData{$foilid.' award'}); + } + $rows_output++; + $cols_output = 0; + } return; } -#---- Problem Analysis Web Page ---------------------------------------------- -sub IntervalOptions { - my ($selectedInterval)=@_; +## +## The following is copied from datecalc1.pl, part of the +## Spreadsheet::WriteExcel CPAN module. +## +## +###################################################################### +# +# Demonstration of writing date/time cells to Excel spreadsheets, +# using UNIX/Perl time as source of date/time. +# +# Copyright 2000, Andrew Benham, adsb@bigfoot.com +# +###################################################################### +# +# UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970) +# measured in seconds. +# +# An Excel file can use exactly one of two different date/time systems. +# In these systems, a floating point number represents the number of days +# (and fractional parts of the day) since a start point. The floating point +# number is referred to as a 'serial'. +# The two systems ('1900' and '1904') use different starting points: +# '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as +# a leap year - see: +# http://support.microsoft.com/support/kb/articles/Q181/3/70.asp +# for the excuse^H^H^H^H^H^Hreason. +# '1904'; '1.00' is 2 Jan 1904. +# +# The '1904' system is the default for Apple Macs. Windows versions of +# Excel have the option to use the '1904' system. +# +# Note that Visual Basic's "DateSerial" function does NOT erroneously +# regard 1900 as a leap year, and thus its serials do not agree with +# the 1900 serials of Excel for dates before 1 Mar 1900. +# +# Note that StarOffice (at least at version 5.2) does NOT erroneously +# regard 1900 as a leap year, and thus its serials do not agree with +# the 1900 serials of Excel for dates before 1 Mar 1900. +# +###################################################################### +# +# Calculation description +# ======================= +# +# 1900 system +# ----------- +# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900. +# Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) +# were leap years with an extra day. +# Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and +# 1 Jan 1970. +# In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year +# 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'. +# +# 1904 system +# ----------- +# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904. +# Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) +# were leap years with an extra day. +# Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and +# 1 Jan 1970. +# In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'. +# +###################################################################### +# +# Copyright (c) 2000, Andrew Benham. +# This program is free software. It may be used, redistributed and/or +# modified under the same terms as Perl itself. +# +# Andrew Benham, adsb@bigfoot.com +# London, United Kingdom +# 11 Nov 2000 +# +###################################################################### - my $interval = 1; - for(my $n=1; $n<=7; $n++) { - if($selectedInterval == $n) { - $interval = $n; +# Use 1900 date system on all platforms other than Apple Mac (for which +# use 1904 date system). +my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0; + +#----------------------------------------------------------- +# calc_serial() +# +# Called with (up to) 2 parameters. +# 1. Unix timestamp. If omitted, uses current time. +# 2. GMT flag. Set to '1' to return serial in GMT. +# If omitted, returns serial in appropriate timezone. +# +# Returns date/time serial according to $DATE_SYSTEM selected +#----------------------------------------------------------- +sub calc_serial { + my $time = (defined $_[0]) ? $_[0] : time(); + my $gmtflag = (defined $_[1]) ? $_[1] : 0; + + # Divide timestamp by number of seconds in a day. + # This gives a date serial with '0' on 1 Jan 1970. + my $serial = $time / 86400; + + # Adjust the date serial by the offset appropriate to the + # currently selected system (1900/1904). + if ($DATE_SYSTEM == 0) { # use 1900 system + $serial += 25569; + } else { # use 1904 system + $serial += 24107; } - } - my $Ptr = ''."\n"; - return $Ptr; + # Perpetuate the error that 1900 was a leap year by decrementing + # the serial if we're using the 1900 system and the date is prior to + # 1 Mar 1900. This has the effect of making serial value '60' + # 29 Feb 1900. + + # This fix only has any effect if UNIX/Perl time on the platform + # can represent 1900. Many can't. + + unless ($DATE_SYSTEM) { + $serial-- if ($serial < 61); # '61' is 1 Mar 1900 + } + return $serial; } -sub OptionResponseTable { - my ($optionResponses,$cache,$r)=@_; +sub _adjustment { + # Based on the difference in the localtime/gmtime array elements + # number, return the adjustment required to the serial. + + # We only look at some elements of the localtime/gmtime arrays: + # seconds unlikely to be different as all known timezones + # have an offset of integral multiples of 15 minutes, + # but it's easy to do. + # minutes will be different for timezone offsets which are + # not an exact number of hours. + # hours very likely to be different. + # weekday will differ when localtime/gmtime difference + # straddles midnight. + # + # Assume that difference between localtime and gmtime is less than + # 5 days, then don't have to do maths for day of month, month number, + # year number, etc... + + my ($delta,$element) = @_; + my $adjust = 0; + + if ($element == 0) { # Seconds + $adjust = $delta/86400; # 60 * 60 * 24 + } elsif ($element == 1) { # Minutes + $adjust = $delta/1440; # 60 * 24 + } elsif ($element == 2) { # Hours + $adjust = $delta/24; # 24 + } elsif ($element == 6) { # Day of week number + # Catch difference straddling Sat/Sun in either direction + $delta += 7 if ($delta < -4); + $delta -= 7 if ($delta > 4); - 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} .= ':::'.$_; + $adjust = $delta; } + return $adjust; +} + +######################################################### +######################################################### +## +## Interface +## +######################################################### +######################################################### +sub CreateInterface { + ## + ## Environment variable initialization + if (! exists$ENV{'form.AnalyzeOver'}) { + $ENV{'form.AnalyzeOver'} = 'Tries'; } - + ## + ## Build the menu my $Str = ''; - - foreach my $sequence (@orderedSequences) { - my @optionProblems = split(':::', $sequences{$sequence}); - - $Str .= ''.$cache->{$sequence.':title'}.''."\n"; - $Str .= "
'.$correctplot.''.$incorrectplot.''.$foilkey.'
'. + 'Start Time:'. + '  '.$interval->{'startdateform'}.'
'. + 'End Time  : '. + ' '.$interval->{'enddateform'}.'
'. +# 'Plot Title  :'. +# (" "x3).$interval->{'titleform'}. + '
'.$correctplot.''. + 'Start Time:  '.$interval->{'startdateform'}.'
'. + 'End Time  : '. + ' '.$interval->{'enddateform'}.'
'. +# 'Plot Title  :'.(" "x3). +# $interval->{'titleform'}. + '
"; - $Str .= ''."\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 $Temp = ''.$title.''; - $Str .= ''; - $Str .= ''; - $Str .= ''; - $Str .= ''; - if($partCount{$problemId.':'.$part} < 2) { - $Str .= ''."\n"; - } else { - my $value = $problemId.':'.$part.':'.$response; - $Str .= ''."\n"; + $Str .= '
\# Problem Title Resource Analysis
'.$count.' '.$Temp.''.$uri.'
'."\n"; + $Str .= ''; + $Str .= ''; + $Str .= ''; +# $Str .= ''; + $Str .= ''; + $Str .= ''."\n"; + ## + ## + $Str .= ''; + # + $Str .= ''; + # +# $Str .= '
'.&mt('Sections').''.&mt('Enrollment Status').''.&mt('Sequences and Folders').' 
'."\n"; + $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); + $Str .= ''; + $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); + $Str .= ''; + 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 .= ''; + { # These braces are here to organize the code, not scope it. + { + $Str .= ''.&mt('Analyze Over '); + $Str .='
'; + } + { + $Str .= ''.&mt('Analyze as '); + $Str .='
'; + } + { + $Str .= '
'.&mt('Number of Plots:'); + $Str .= ''; } - $Str .= '

'."\n"; } - + $Str .= ''; + ## + ## + $Str .= ''."\n"; + $Str .= ''."\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\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{'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 '; + } + $seq_str .= '\n"; } } } } + if ($seq_str ne '') { + $Str .= ''. + "\n".$seq_str; + } } + $Str .= "
'. + ''. + ''. + ''.$res->{'title'}.' '; + if ($partdata->{'option'} > 1) { + $seq_str .= &mt('response').' '.$respid; + } + $seq_str .= "
 '.$seq->{'title'}.'
\n"; + return $Str; +} - return; +######################################################### +######################################################### +## +## Misc functions +## +######################################################### +######################################################### +sub get_problem_symb { + my $problemstring = shift(); + my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/); + return ($symb,$partid,$resid); } -sub DrawGraph { - my ($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 { - $Max = 1; +sub get_resource_from_symb { + my ($symb) = @_; + foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { + foreach my $res (@{$seq->{'contents'}}) { + if ($res->{'symb'} eq $symb) { + return $res; + } + } } + return undef; +} - 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.'&'; - $GData .= (join(',',@data1)).'&'.(join(',',@data2)); - - return ''; -} - -sub DrawTable { - my ($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 = ''; -# $Str .= '
From: ['.localtime($ConceptData->{'Int.'.($k-1)}); -# $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']'; - $Str .= "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''; - - for(my $n=0; $n<(scalar @$Concepts); $n++ ) { - $Str .= ''."\n"; - $Str .= ''."\n"; - my ($currentConcept) = split('::',$Concepts->[$n]); - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - } - $Str .= ''; - $Str .= '
# Concept Correct Wrong
'.($n+1).''.$currentConcept; - $Str .= ''.$data1[$n].''.$data2[$n].'
From:['.localtime($ConceptData->{'Int.'.$k}); - $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1); - $Str .= ']'.$Correct.''.$Wrong.'
'."\n"; +sub get_time_from_row { + my ($row) = @_; + if (ref($row)) { + return $row->[3]; + } + return undef; +} - 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'}) { - $k++; +sub get_tries_from_row { + my ($row) = @_; + if (ref($row)) { + return $row->[5]; } - $ConceptData->{$concept.'.'.$k.'.'.$type}++; - - return; + return undef; } -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, $_); - $found = 1; - last; - } +sub Process_Row { + my ($row) = @_; + my %RowData; + my ($student_id,$award,$grading,$submission,$time,$tries) = @$row; + return undef if ($award eq 'MISSING_ANSWER'); + if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { + $RowData{'_correct'} = 1; + } + $RowData{'_total'} = 1; + my @Foilgrades = split('&',$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) { + $RowData{$foilid}->{'_correct'}++; + } else { + $submission = &Apache::lonnet::unescape($submission); + $RowData{$foilid}->{$submission}++; } + $RowData{$foilid}->{'_total'}++; } + return %RowData; +} - 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') { + $Partdata{$part}->{'Options'}=$value; + } elsif ($key eq 'concepts') { + $Partdata{$part}->{'Concepts'}=$value; + } elsif ($key =~ /^concept\.(.*)$/) { + my $concept = $1; + foreach my $foil (@$value) { + $Partdata{$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.'.$1}; + } else { + if ($key=~ /^foil\.text\.(.*)$/) { + my $foil = $1; + $Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil; + $value =~ s/(\s*$|^\s*)//g; + $Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value; + } elsif ($key =~ /^foil\.value\.(.*)$/) { + my $foil = $1; + $Partdata{$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__