--- loncom/interface/statistics/lonproblemanalysis.pm 2004/03/31 05:24:00 1.83 +++ loncom/interface/statistics/lonproblemanalysis.pm 2004/10/15 16:50:30 1.94 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.83 2004/03/31 05:24:00 albertel Exp $ +# $Id: lonproblemanalysis.pm,v 1.94 2004/10/15 16:50:30 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -51,23 +51,17 @@ my @SubmitButtons = ({ name => 'PrevProb { name => 'NextProblemAnalysis', text => 'Next Problem' }, { name => 'break'}, - { name => 'ClearCache', - text => 'Clear Caches' }, - { name => 'updatecaches', - text => 'Update Student Data' }, { name => 'SelectAnother', text => 'Choose a different Problem' }, { name => 'ExcelOutput', text => 'Produce Excel Output' }); - sub BuildProblemAnalysisPage { my ($r,$c)=@_; # my %Saveable_Parameters = ('Status' => 'scalar', 'Section' => 'array', 'NumPlots' => 'scalar', - 'AnalyzeAs' => 'scalar', 'AnalyzeOver' => 'scalar', ); &Apache::loncommon::store_course_settings('problem_analysis', @@ -81,25 +75,18 @@ sub BuildProblemAnalysisPage { # my @Students = @Apache::lonstatistics::Students; # - if (@Students < 1) { + if (@Students < 1 && exists($ENV{'form.firstrun'})) { $r->print('

There are no students in the sections selected

'); } # - &Apache::loncoursedata::clear_internal_caches(); - 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 { - $r->print(''); - } + my @CacheButtonHTML = + &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); $r->rflush(); # - my $problem_types = '(option|radiobutton|numerical)'; + # Support for numerical and radio response isn't complete enough to + # include in 1.2 release. + # my $problem_types = '(option|radiobutton|numerical)'; + my $problem_types = '.';#(option)'; if (exists($ENV{'form.problemchoice'}) && ! exists($ENV{'form.SelectAnother'})) { foreach my $button (@SubmitButtons) { @@ -111,6 +98,9 @@ sub BuildProblemAnalysisPage { $r->print(' 'x5); } } + foreach my $html (@CacheButtonHTML) { + $r->print($html.(' 'x5)); + } # $r->print('
'); $r->rflush(); @@ -144,20 +134,22 @@ sub BuildProblemAnalysisPage { my $resource = $current_problem->{'resource'}; $r->print('

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

'); $r->print('

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

'); - $r->print(&Apache::lonstathelpers::render_resource($resource)); + if ($ENV{'form.show_prob'} eq 'true') { + $r->print(&Apache::lonstathelpers::render_resource($resource)); + } $r->rflush(); my %Data = &Apache::lonstathelpers::get_problem_data ($resource->{'src'}); - my $ProblemData = $Data{$current_problem->{'part'}. + my $problem_data = $Data{$current_problem->{'part'}. '.'. $current_problem->{'respid'}}; if ($current_problem->{'resptype'} eq 'option') { &OptionResponseAnalysis($r,$current_problem, - $ProblemData, + $problem_data, \@Students); } elsif ($current_problem->{'resptype'} eq 'radiobutton') { &RadioResponseAnalysis($r,$current_problem, - $ProblemData, + $problem_data, \@Students); } elsif ($current_problem->{'resptype'} eq 'numerical') { ## @@ -168,7 +160,7 @@ sub BuildProblemAnalysisPage { foreach my $respid (@{$res->{'partdata'}->{$partid}->{'ResponseIds'}}) { $current_problem->{'respid'}=$respid; &NumericalResponseAnalysis($r,$current_problem, - $ProblemData,\@Students); + $problem_data,\@Students); } } } else { @@ -195,7 +187,7 @@ sub BuildProblemAnalysisPage { ######################################################### ######################################################### sub NumericalResponseAnalysis { - my ($r,$problem,$ProblemData,$Students) = @_; + my ($r,$problem,$problem_data,$Students) = @_; my $c = $r->connection(); my ($resource,$partid,$respid) = ($problem->{'resource'}, $problem->{'part'}, @@ -230,8 +222,9 @@ sub NumericalResponseAnalysis { } # # This next call causes all the waiting around that people complain about - my ($max,$min) = &Apache::lonstathelpers::GetStudentAnswers($r,$problem, - $Students); + &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students, + 'Statistics', + 'stats_status'); return if ($c->aborted()); # # Collate the data @@ -383,69 +376,395 @@ sub build_student_data_worksheet { ######################################################### ######################################################### sub RadioResponseAnalysis { - my ($r,$problem,$ProblemData,$Students) = @_; - my ($resource,$respid) = ($problem->{'resource'}, - $problem->{'respid'}); + my ($r,$problem,$problem_analysis,$students) = @_; + if ($ENV{'form.AnalyzeOver'} eq 'tries') { + &RR_tries_analysis($r,$problem,$problem_analysis,$students); + } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { + &RR_static_time_analysis($r,$problem,$problem_analysis,$students); + } else { + $r->print('Bad request'); + } + return; +} + +sub RR_computed_tries_analysis { + my ($r,$problem,$problem_analysis) = @_; + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + $r->print('The tries answer you seek must be computed'); + # Gather student data + # for each try + # loop through data, classifying it by + # correct foil -> selected foil + # if there is concept data + # make a concept correct plot + # for each correct foil + # make a plot of the data +} + +sub RR_computed_time_analysis { + my ($r,$problem,$problem_analysis) = @_; + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + $r->print('The time answer you seek must be computed'); + # Gather student data + # for time division + # limit to between start time & end time + # loop through data, classifying it by + # correct foil -> selected foil + # if there is concept data + # make a concept correct plot + # for each correct foil + # make a plot of the data +} + +sub RR_tries_analysis { + my ($r,$problem,$problem_analysis,$students) = @_; + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + # my $analysis_html; - my $PerformanceData = &Apache::loncoursedata::get_response_data + my $foildata = $problem_analysis->{'_Foils'}; + my ($table,$foils,$concepts) = &build_foil_index($problem_analysis); + $analysis_html .= $table; + # Gather student data + my $response_data = &Apache::loncoursedata::get_response_data (\@Apache::lonstatistics::SelectedSections, $Apache::lonstatistics::enrollment_status, $resource->{'symb'},$respid); - if (! defined($PerformanceData) || - ref($PerformanceData) ne 'ARRAY' ) { + my $correct; # either a hash reference or a scalar + if ($problem_analysis->{'answercomputed'} || scalar(@$concepts) > 1) { + # This takes a while for large classes... + &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$students, + 'Statistics', + 'stats_status'); + foreach my $student (@$students) { + my ($idx,@remainder) = split('&',$student->{'answer'}); + my ($answer) = ($remainder[$idx]=~/^(.*)=([^=]*)$/); + $correct->{$student->{'username'}.':'.$student->{'domain'}}= + &Apache::lonnet::unescape($answer); + } + } else { + foreach my $foil (keys(%$foildata)) { + if ($foildata->{$foil}->{'value'} eq 'true') { + $correct = $foildata->{$foil}->{'name'}; + last; + } + } + } + if (! defined($response_data) || + ref($response_data) ne 'ARRAY' ) { + $analysis_html = '

'. + &mt('There is no submission data for this resource'). + '

'; + $r->print($analysis_html); + return; + } + # + $analysis_html.=''; + for (my $try = 1;$try<=$ENV{'form.NumPlots'};$try++) { + # classify data ->correct foil -> selected foil + my $attempt_restriction_function = + my $foil_choice_data = + &RR_classify_response_data($response_data,$correct, + sub {($_[0]->{'tries'} == $try?1:0)}); + my $answers; + if (ref($correct)) { + my %tmp; + foreach my $foil (values(%$correct)) { + $tmp{$foil}++; + } + $answers = [keys(%tmp)]; + } else { + $answers = [$correct]; + } + # Concept Plot + my $concept_plot = ''; + if (scalar(@$concepts) > 1) { + $concept_plot = &RR_concept_plot($concepts,$foil_choice_data, + '% choosing'); + } + # % Choosing plot + my $choice_plot = &RR_create_percent_selected_plot + ($foils,$foil_choice_data,'Attempt '.$try); + # for each correct foil, how did they mark it? (stacked bar graph) + my ($stacked_plot,$count_by_foil) = + &RR_create_stacked_selection_plot($foils,$foil_choice_data,''); + # + if ($concept_plot ne '' || + $choice_plot ne '' || + $stacked_plot ne '') { + $analysis_html.= + ''. + ''. + ''; + if ($stacked_plot ne '') { + $analysis_html .= + ''. + ''; + } else { + $analysis_html .= (''x2); + } + $analysis_html.=''.$/; + } + } + $analysis_html.='
'.$concept_plot.''.$choice_plot.''.$stacked_plot.''.&build_foil_key($foils,$count_by_foil).'
'; + $r->print($analysis_html); +} + + +sub RR_concept_plot { + my ($concepts,$foil_data,$title) = @_; + # + my %correct_by_concept; + my %incorrect_by_concept; + my %true; + foreach my $concept (@$concepts) { + foreach my $foil (@{$concept->{'foils'}}) { + next if (! exists($foil_data->{$foil})); + foreach my $choice (keys(%{$foil_data->{$foil}})) { + if ($choice eq $foil) { + $correct_by_concept{$concept->{'name'}} += + $foil_data->{$foil}->{$choice}; + } else { + $incorrect_by_concept{$concept->{'name'}} += + $foil_data->{$foil}->{$choice}; + + } + } + } + } + # + # need arrays for incorrect and correct because we want to use different + # colors for them + my @correct; + # + my $total =0; + for (my $i=0;$i[$i]; + $correct[$i] = $correct_by_concept{$concept->{'name'}}; + $total += $correct_by_concept{$concept->{'name'}}+ + $incorrect_by_concept{$concept->{'name'}}; + } + if ($total == 0) { return ''; }; + for (my $i=0;$i<=$#correct;$i++) { + $correct[$i] = sprintf('%0f',$correct[$i]/$total*100); + } + my $xlabel = 'concept'; + $title.= ' (N='.$total.')'; + my $plot= &Apache::loncommon::DrawBarGraph($title, + $xlabel, + 'Percent Choosing', + 100, + ['#33ff00','#ff3300'], + undef, + \@correct); + return $plot; +} + + +sub RR_create_percent_selected_plot { + my ($foils,$foil_data,$title) = @_; + # + my %foil_selections; + my %true; + foreach my $foil (@$foils) { + # foil_data has format $foil_data->{true_foil}->{selected foil} + next if (! exists($foil_data->{$foil})); + $true{$foil}++; + while (my ($f,$count)= each(%{$foil_data->{$foil}})) { + $foil_selections{$f}+=$count; + } + } + # + # need arrays for incorrect and correct because we want to use different + # colors for them + my @correct; + my @incorrect; + # + my $total =0; + for (my $i=0;$i[$i]; + if ($true{$foil}) { + $correct[$i] = $foil_selections{$foil}; + $incorrect[$i] = 0; + } else { + $correct[$i] = 0; + $incorrect[$i] = $foil_selections{$foil}; + } + $total+=$foil_selections{$foil}; + } + if ($total == 0) { return ''; }; + for (my $i=0;$i<=$#correct;$i++) { + $correct[$i] = sprintf('%0f',$correct[$i]/$total*100); + } + for (my $i=0;$i<=$#incorrect;$i++) { + $incorrect[$i] = sprintf('%0f',$incorrect[$i]/$total*100); + } + my $xlabel = 'foil chosen'; + $title.= ' (N='.$total.')'; + my $plot= &Apache::loncommon::DrawBarGraph($title, + $xlabel, + 'Percent Choosing', + 100, + ['#33ff00','#ff3300'], + undef, + \@correct, + \@incorrect); + return $plot; +} + + +sub RR_create_stacked_selection_plot { + my ($foils,$foil_data,$title)=@_; + # + my @correct_choice; # the green row + my @dataset; # array of array refs - multicolor rows. + my %filled; + my @labels; + my $count=-1; + my %column; + for (my $i=0;$i{$foils->[$i]})); + my $correct_foil = $foils->[$i]; + push(@labels,$i+1); + $column{$correct_foil}= ++$count; + for (my $j=0;$j{$correct_foil}->{$foils->[$j]}; + } + $dataset[$j]->[$column{$correct_foil}]=$value; + } + } + # + return '' if (! scalar(keys(%column))); + # + my $grand_total = 0; + my %count_per_foil; + while (my ($foil,$bar) = each (%column)) { + my $bar_total = 0; + for (my $j=0;$j[$bar]; + } + next if ($bar_total == 0); + for (my $j=0;$j[$bar] = + sprintf('%2f',$dataset[$j]->[$bar]/$bar_total * 100); + } + $count_per_foil{$foil}=' (N='.$bar_total.')'; + $grand_total += $bar_total; + } + if ($grand_total == 0) { + return ('',undef); + } + my @empty_row = (); + foreach (@{$dataset[0]}) { + push(@empty_row,0); + } + # + $title .= ' (N='.$grand_total.')'; + my $graph = &Apache::loncommon::DrawBarGraph + ($title,'Correct Foil','foils chosen Incorrectly', + 100,$plotcolors,\@labels,\@empty_row,@dataset); + return ($graph,\%count_per_foil); +} + + +# if $correct is a hash ref, it is assumed to be indexed by student names. +# the values are assumed to be hash refs with a key of 'answer'. +sub RR_classify_response_data { + my ($full_row_data,$correct,$function) = @_; + my %submission_data; + foreach my $row (@$full_row_data) { + my %subm = &hashify_attempt($row); + if (ref($correct) eq 'HASH') { + $subm{'correct'} = $correct->{$subm{'student'}}; + } else { + $subm{'correct'} = $correct; + } + $subm{'submission'} =~ s/=\d+\s*$//; + if (&$function(\%subm)) { + $submission_data{$subm{'correct'}}->{$subm{'submission'}}++; + } + } + return \%submission_data; +} + +sub RR_static_time_analysis { + my ($r,$problem,$problem_analysis) = @_; + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + $r->print('

The time answer you seek is static

'); + my $analysis_html; + # Gather student data + my $response_data = &Apache::loncoursedata::get_response_data + (\@Apache::lonstatistics::SelectedSections, + $Apache::lonstatistics::enrollment_status, + $resource->{'symb'},$respid); + if (! defined($response_data) || + ref($response_data) ne 'ARRAY' ) { $analysis_html = '

'. &mt('There is no submission data for this resource'). '

'; $r->print($analysis_html); return; } - if (exists($ENV{'form.ExcelOutput'})) { - $analysis_html .= &RR_Excel_output($r,$problem->{'resource'}, - $PerformanceData,$ProblemData); - } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') { - $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'}, - $PerformanceData,$ProblemData); - } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { - $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'}, - $PerformanceData,$ProblemData); + # for time division + + # limit to between start time & end time + # loop through data, classifying it by + # correct foil -> selected foil + # if there is concept data + # make a concept correct plot + # for each correct foil + # make a plot of the data + +} + + +=pod + + + } elsif ($ENV{'form.AnalyzeOver'} eq 'tries') { + $analysis_html .= &RR_tries_Analysis($r,$problem->{'resource'}, + $PerformanceData,$problem_data); + } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { + $analysis_html .= &RR_time_Analysis($r,$problem->{'resource'}, + $PerformanceData,$problem_data); } else { $analysis_html .= '

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

'; + ''; } $r->print($analysis_html); } sub RR_Excel_output { - my ($r,$PerformanceData,$ProblemData) = @_; + my ($r,$PerformanceData,$problem_data) = @_; return '

No!

'; } -sub RR_Tries_Analysis { - my ($r,$resource,$PerformanceData,$ProblemData) = @_; +sub RR_tries_Analysis { + my ($r,$resource,$PerformanceData,$problem_data) = @_; my $analysis_html; my $mintries = 1; my $maxtries = $ENV{'form.NumPlots'}; - my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData); - if ((! defined($Concepts)) || ((@$Concepts < 2) && - ($ENV{'form.AnalyzeAs'} ne 'Foils'))) { + my ($table,$Foils,$Concepts) = &build_foil_index($problem_data); + if ((! defined($Concepts)) || (@$Concepts < 2)) { $table = '

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

'.$table; - $ENV{'form.AnalyzeAs'} = 'Foils'; } $analysis_html .= $table; my @TryData = &RR_tries_data_analysis($r,$PerformanceData); -# if ($ENV{'form.AnalyzeAs'} eq 'Foils') { - $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils, - \@TryData,$ProblemData); -# } else { -# $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries, -# $Concepts, -# \@TryData, -# $ProblemData); -# } + $analysis_html .= &RR_tries_Foil_Analysis($mintries,$maxtries,$Foils, + \@TryData,$problem_data); return $analysis_html; } @@ -460,14 +779,14 @@ sub RR_tries_data_analysis { return @TryData; } -sub RR_Time_Analysis { - my ($r,$PerformanceData,$ProblemData) = @_; +sub RR_time_Analysis { + my ($r,$PerformanceData,$problem_data) = @_; my $html; return $html; } -sub RR_Tries_Foil_Analysis { - my ($min,$max,$Foils,$TryData,$ProblemData) = @_; +sub RR_tries_Foil_Analysis { + my ($min,$max,$Foils,$TryData,$problem_data) = @_; my $html; # # Compute the data neccessary to make the plots @@ -486,7 +805,7 @@ sub RR_Tries_Foil_Analysis { push (@PlotData_Correct,0); push (@PlotData_Incorrect,0); } else { - if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') { + if ($problem_data->{'_Foils'}->{$foilid}->{'value'} eq 'true') { push (@PlotData_Correct, int(100*$DataSet{$foilid}/$total)); push (@PlotData_Incorrect,0); @@ -497,8 +816,8 @@ sub RR_Tries_Foil_Analysis { } } } - my $title='Attempt '.$try; - my $xlabel = $total.' Submissions'; + my $title='Attempt '.$try.' (N='.$total.')'; + my $xlabel = 'Foil Chosen'; $html.= &Apache::loncommon::DrawBarGraph($title, $xlabel, 'Percent Choosing', @@ -511,20 +830,20 @@ sub RR_Tries_Foil_Analysis { return $html; } -sub RR_Tries_Concept_Analysis { - my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_; +sub RR_tries_Concept_Analysis { + my ($min,$max,$Concepts,$ResponseData,$problem_data) = @_; my $html; return $html; } -sub RR_Time_Foil_Analysis { - my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_; +sub RR_time_Foil_Analysis { + my ($min,$max,$Foils,$ResponseData,$problem_data) = @_; my $html; return $html; } -sub RR_Time_Concept_Analysis { - my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_; +sub RR_time_Concept_Analysis { + my ($min,$max,$Concepts,$ResponseData,$problem_data) = @_; my $html; return $html; } @@ -561,6 +880,8 @@ sub get_Radio_problem_data { return %Partdata; } +=cut + ######################################################### ######################################################### ## @@ -569,7 +890,7 @@ sub get_Radio_problem_data { ######################################################### ######################################################### sub OptionResponseAnalysis { - my ($r,$problem,$ProblemData,$Students) = @_; + my ($r,$problem,$problem_data,$Students) = @_; my ($resource,$respid) = ($problem->{'resource'}, $problem->{'respid'}); # Note: part data is not needed. @@ -587,19 +908,19 @@ sub OptionResponseAnalysis { if (exists($ENV{'form.ExcelOutput'})) { my $result = &OR_excel_sheet($r,$resource, $PerformanceData, - $ProblemData); + $problem_data); $r->print($result); $r->rflush(); } else { - if ($ENV{'form.AnalyzeOver'} eq 'Tries') { + if ($ENV{'form.AnalyzeOver'} eq 'tries') { my $analysis_html = &OR_tries_analysis($r, $PerformanceData, - $ProblemData); + $problem_data); $r->print($analysis_html); $r->rflush(); - } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { + } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { my $analysis_html = &OR_time_analysis($PerformanceData, - $ProblemData); + $problem_data); $r->print($analysis_html); $r->rflush(); } else { @@ -614,7 +935,7 @@ sub OptionResponseAnalysis { ######################################################### # -# Option Response: Tries Analysis +# Option Response: tries Analysis # ######################################################### sub OR_tries_analysis { @@ -622,78 +943,106 @@ sub OR_tries_analysis { my $mintries = 1; my $maxtries = $ENV{'form.NumPlots'}; my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); - if (! defined($Concepts) || - ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) { - $table = '

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

'.$table; - $ENV{'form.AnalyzeAs'} = 'Foils'; - } - my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData, + my %response_data = &OR_analyze_by_tries($r,$PerformanceData, $mintries,$maxtries); my $analysis = ''; - if ($ENV{'form.AnalyzeAs'} eq 'Foils') { - $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts, - \%ResponseData,$ORdata); - } else { - $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries, - $Concepts,\%ResponseData,$ORdata); - } - $table .= $analysis; - return $table; -} - -sub OR_Tries_Foil_Analysis { - my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_; - my %ResponseData = %$respdat; # - # Compute the data neccessary to make the plots - my @PlotData; - foreach my $concept (@$Concepts) { + # Compute the data necessary to make the plots + my @foil_plot; + my @concept_data; + for (my $j=0;$j<=scalar(@$Concepts);$j++) { + my $concept = $Concepts->[$j]; foreach my $foilid (@{$concept->{'foils'}}) { for (my $try=$mintries;$try<=$maxtries;$try++) { - if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) { - push(@{$PlotData[$try]->{'_correct'}},0); + # concept analysis data + $concept_data[$j]->[$try]->{'_correct'} += + $response_data{$foilid}->[$try]->{'_correct'}; + $concept_data[$j]->[$try]->{'_total'} += + $response_data{$foilid}->[$try]->{'_total'}; + # + # foil analysis data + if ($response_data{$foilid}->[$try]->{'_total'} == 0) { + push(@{$foil_plot[$try]->{'_correct'}},0); } else { - push(@{$PlotData[$try]->{'_correct'}}, - 100*$ResponseData{$foilid}->[$try]->{'_correct'}/ - $ResponseData{$foilid}->[$try]->{'_total'}); + push(@{$foil_plot[$try]->{'_correct'}}, + 100*$response_data{$foilid}->[$try]->{'_correct'}/ + $response_data{$foilid}->[$try]->{'_total'}); } foreach my $option (@{$ORdata->{'_Options'}}) { - push(@{$PlotData[$try]->{'_total'}}, - $ResponseData{$foilid}->[$try]->{'_total'}); - if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) { - push (@{$PlotData[$try]->{$option}},0); + push(@{$foil_plot[$try]->{'_total'}}, + $response_data{$foilid}->[$try]->{'_total'}); + if ($response_data{$foilid}->[$try]->{'_total'} == 0) { + push (@{$foil_plot[$try]->{$option}},0); } else { - if ($ResponseData{$foilid}->[$try]->{'_total'} == - $ResponseData{$foilid}->[$try]->{'_correct'}) { - push(@{$PlotData[$try]->{$option}},0); + if ($response_data{$foilid}->[$try]->{'_total'} == + $response_data{$foilid}->[$try]->{'_correct'}) { + push(@{$foil_plot[$try]->{$option}},0); } else { - push (@{$PlotData[$try]->{$option}}, + push (@{$foil_plot[$try]->{$option}}, 100 * - $ResponseData{$foilid}->[$try]->{$option} / - ($ResponseData{$foilid}->[$try]->{'_total'} + $response_data{$foilid}->[$try]->{$option} / + ($response_data{$foilid}->[$try]->{'_total'} - - $ResponseData{$foilid}->[$try]->{'_correct'} + $response_data{$foilid}->[$try]->{'_correct'} )); } } } # End of foreach my $option } } # End of foreach my $foilid - } # End of foreach my $concept + } # End of concept loops # # Build a table for the plots my $analysis_html = "\n"; my $optionkey = &build_option_index($ORdata); + my $num_concepts = 1; + if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); } + # for (my $try=$mintries;$try<=$maxtries;$try++) { - my $count = $ResponseData{'_total'}->[$try]; - my $title = 'Submission '.$try.' (N='.$count.')'; + if (! defined($response_data{'_total'}->[$try]) || + $response_data{'_total'}->[$try] == 0) { + if ($try > 1) { + $analysis_html.= ''; + } else { + $analysis_html.= ''; + } + last; + } + my $concept_graph=''; + if ($num_concepts > 1) { + # + # Create concept plot + my @concept_plot_data; + for (my $j=0;$j<=$#concept_data;$j++) { + my $total = $concept_data[$j]->[$try]->{'_total'}; + if ($total == 0) { + $concept_plot_data[$j] = 0; + } else { + $concept_plot_data[$j] = 100 * + sprintf('%0.3f', + $concept_data[$j]->[$try]->{'_correct'} / + $total); + } + } + # + my $title; + my $count = $response_data{'_total'}->[$try]; + $title = 'Attempt '.$try.' (N='.$count.')'; + $concept_graph = &Apache::loncommon::DrawBarGraph + ($title,'Concept Number','Percent Correct', + 100,$plotcolors,undef,\@concept_plot_data); + } + # + # Create Foil Plots + my $count = $response_data{'_total'}->[$try]; + my $title = 'Attempt '.$try.' (N='.$count.')'; my @Datasets; foreach my $option ('_correct',@{$ORdata->{'_Options'}}) { - next if (! exists($PlotData[$try]->{$option})); - push(@Datasets,$PlotData[$try]->{$option}); + next if (! exists($foil_plot[$try]->{$option})); + push(@Datasets,$foil_plot[$try]->{$option}); } # # Put a blank in the data set between concepts @@ -720,10 +1069,9 @@ sub OR_Tries_Foil_Analysis { push(@Labels,''); } # - my $correctgraph = &Apache::loncommon::DrawBarGraph + my $correct_graph = &Apache::loncommon::DrawBarGraph ($title,'Foil Number','Percent Correct', 100,$plotcolors,\@Labels,$Datasets[0]); - $analysis_html.= ''; # # @@ -731,83 +1079,23 @@ sub OR_Tries_Foil_Analysis { for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) { $Datasets[0]->[$i]=0; } - $count = $ResponseData{'_total'}->[$try] - - $ResponseData{'_correct'}->[$try]; - $title = 'Submission '.$try.' (N='.$count.')'; - my $incorrectgraph = &Apache::loncommon::DrawBarGraph + $count = $response_data{'_total'}->[$try] - + $response_data{'_correct'}->[$try]; + $title = 'Attempt '.$try.' (N='.$count.')'; + my $incorrect_graph = &Apache::loncommon::DrawBarGraph ($title,'Foil Number','% Option Chosen Incorrectly', 100,$plotcolors,\@Labels,@Datasets); - $analysis_html.= ''; - $analysis_html.= '\n"; - } - $analysis_html .= "
'. + &mt('None of the selected students attempted the problem more than [_1] times.',$try-1). + '
'. + &mt('None of the selected students have attempted the problem').'
'.$correctgraph.''.$incorrectgraph.''.$optionkey."
\n"; - return $analysis_html; -} - -sub OR_Tries_Concept_Analysis { - my ($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[$i]->{'_correct'}},0); - } else { - push (@{$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; - } - } - $maxstu = 0 if (! defined($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 $graphlink = &Apache::loncommon::DrawBarGraph - ($title,'Concept Number','Percent Correct', - 100,$plotcolors,undef,$PlotData[$i]->{'_correct'}); - $analysis_html.= '\n"; + $analysis_html.= + ''. + ''. + ''. + ''. + ''.$/; } $analysis_html .= "
'.$graphlink."
'.$concept_graph.''.$correct_graph.''.$incorrect_graph.''.$optionkey.''. + '
\n"; - return $analysis_html; + $table .= $analysis_html; + return $table; } sub OR_analyze_by_tries { @@ -839,17 +1127,21 @@ sub OR_analyze_by_tries { # ######################################################### sub OR_time_analysis { - my ($PerformanceData,$ORdata) = @_; + my ($performance_data,$ORdata) = @_; my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); - if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { + my $foilkey = &build_option_index($ORdata); + my $num_concepts = 1; + if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); } + # + if ($num_concepts < 2) { $table = '

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

'.$table; - $ENV{'form.AnalyzeAs'} = 'Foils'; + ''.$table; } + # my $num_plots = $ENV{'form.NumPlots'}; - my $num_data = scalar(@$PerformanceData)-1; + my $num_data = scalar(@$performance_data)-1; my $percent = sprintf('%2f',100/$num_plots); # $table .= "\n"; @@ -861,16 +1153,20 @@ sub OR_time_analysis { ('enddate_'.$i); if (! defined($starttime) || ! defined($endtime)) { my $sec_in_day = 86400; - my $last_sub_time = &get_time_from_row($PerformanceData->[-1]); + my $last_sub_time = &get_time_from_row($performance_data->[-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]); + $starttime = &get_time_from_row($performance_data->[0]); } } + $table .= ''.$/; my $startdateform = &Apache::lonhtmlcommon::date_setter ('Statistics','startdate_'.$i,$starttime); my $enddateform = &Apache::lonhtmlcommon::date_setter @@ -879,13 +1175,17 @@ sub OR_time_analysis { my $begin_index; my $end_index; my $j; - while (++$j < scalar(@$PerformanceData)) { - last if (&get_time_from_row($PerformanceData->[$j]) + while (++$j < scalar(@$performance_data)) { + last if (&get_time_from_row($performance_data->[$j]) > $starttime); } $begin_index = $j; - while (++$j < scalar(@$PerformanceData)) { - last if (&get_time_from_row($PerformanceData->[$j]) > $endtime); + while ($j < scalar(@$performance_data)) { + if (&get_time_from_row($performance_data->[$j]) > $endtime) { + last; + } else { + $j++; + } } $end_index = $j; ## @@ -895,29 +1195,44 @@ sub OR_time_analysis { startdateform => $startdateform, enddateform => $enddateform, }; - if ($ENV{'form.AnalyzeAs'} eq 'Foils') { - $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils, + my $concept_correct_plot = ''; + if ($num_concepts > 1) { + $concept_correct_plot = + &OR_Concept_Time_Analysis($performance_data, + $ORdata,$Concepts, $interval); - } else { - $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata, - $Concepts,$interval); } + my ($foil_correct_plot,$foil_incorrect_plot) = + &OR_Foil_Time_Analysis($performance_data,$ORdata, + $Foils,$Concepts,$interval); + $table .= ''. + ''. + ''. + ''. + ''.$/; + $table .= ''.$/; + $table.= ''.$/; } + $table .= '
'. + &mt('Data from [_1] to [_2]', + &Apache::lonlocal::locallocaltime($starttime), + &Apache::lonlocal::locallocaltime($endtime)).'
'.$concept_correct_plot.''.$foil_correct_plot.''.$foil_incorrect_plot.''.$foilkey.'
'. + &mt('Start time: [_1]', + $interval->{'startdateform'}).'
'. + &mt('End time: [_1]', + $interval->{'enddateform'}). + '
 
'; # return $table; } sub OR_Foil_Time_Analysis { - my ($PerformanceData,$ORdata,$Foils,$interval) = @_; + my ($performance_data,$ORdata,$Foils,$Concepts,$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]; + my $row = $performance_data->[$j]; next if (! defined($row)); my %Row = &Process_OR_Row($row); while (my ($foilid,$href) = each(%Row)) { @@ -930,83 +1245,80 @@ sub OR_Foil_Time_Analysis { } } } - 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); + my @plotdata; + my @labels; + foreach my $concept (@{$Concepts}) { + foreach my $foil (@{$concept->{'foils'}}) { + push(@labels,scalar(@labels)+1); + my $total = $TimeData{$foil}->{'_total'}; + if ($total == 0) { + push(@{$plotdata[0]},0); } else { - push(@{$Plotdata[$optionidx]}, - 100 * $TimeData{$foil}->{$option} / $total_incorrect); + push(@{$plotdata[0]}, + 100 * $TimeData{$foil}->{'_correct'} / $total); + } + my $total_incorrect = $total - $TimeData{$foil}->{'_correct'}; + for (my $i=0;$i{'_Options'}});$i++) { + my $option = $ORdata->{'_Options'}->[$i]; + if ($total_incorrect == 0) { + push(@{$plotdata[$i+1]},0); + } else { + push(@{$plotdata[$i+1]}, + 100 * $TimeData{$foil}->{$option} / $total_incorrect); + } } - } continue { - $optionidx++; + } + # Put in a blank one + push(@labels,''); + push(@{$plotdata[0]},0); + for (my $i=0;$i{'_Options'}});$i++) { + push(@{$plotdata[$i+1]},0); } } # # Create the plot my $count = $end_index-$begin_index; + return ('No data','') if ($count <= 0); my $title; if ($count == 0) { $title = 'no submissions'; } elsif ($count == 1) { $title = 'one submission'; - } else { + } elsif ($count > 1) { $title = $count.' submissions'; } - my $correctplot = &Apache::loncommon::DrawBarGraph($title, + my $correct_plot = &Apache::loncommon::DrawBarGraph($title, 'Foil Number', 'Percent Correct', 100, $plotcolors, undef, - $Plotdata[0]); - for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) { - $Plotdata[0]->[$j]=0; + $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 < 0) { + return ($correct_plot,''); } elsif ($count == 1) { $title = 'one submission'; } else { $title = $count.' submissions'; } - my $incorrectplot = &Apache::loncommon::DrawBarGraph($title, + my $incorrect_plot = &Apache::loncommon::DrawBarGraph($title, 'Foil Number', 'Incorrect Option Choice', 100, $plotcolors, undef, - @Plotdata); - $analysis_html.=''. - ''.$correctplot.''. - ''.$incorrectplot.''. - ''.$foilkey.''."\n"; - $analysis_html.= ''.''. - 'Start Time:'. - '  '.$interval->{'startdateform'}.'
'. - 'End Time  : '. - ' '.$interval->{'enddateform'}.'
'. -# 'Plot Title  :'. -# (" "x3).$interval->{'titleform'}. - ''. - "\n"; - return $analysis_html; + @plotdata); + return ($correct_plot,$incorrect_plot); } sub OR_Concept_Time_Analysis { - my ($PerformanceData,$ORdata,$Concepts,$interval) = @_; - my $analysis_html; + my ($performance_data,$ORdata,$Concepts,$interval) = @_; ## ## Determine starttime, endtime, startindex, endindex my ($begin_index,$end_index) = ($interval->{'begin_index'}, @@ -1015,7 +1327,7 @@ sub OR_Concept_Time_Analysis { # # Compute the number getting the foils correct or incorrects for (my $j=$begin_index;$j<=$end_index;$j++) { - my $row = $PerformanceData->[$j]; + my $row = $performance_data->[$j]; next if (! defined($row)); my %Row = &Process_OR_Row($row); while (my ($foilid,$href) = each(%Row)) { @@ -1030,7 +1342,7 @@ sub OR_Concept_Time_Analysis { } # # Put the data in plottable form - my @Plotdata; + my @plotdata; foreach my $concept (@$Concepts) { my ($total,$correct); foreach my $foil (@{$concept->{'foils'}}) { @@ -1038,32 +1350,21 @@ sub OR_Concept_Time_Analysis { $correct += $TimeData{$foil}->{'_correct'}; } if ($total == 0) { - push(@Plotdata,0); + push(@plotdata,0); } else { - push(@Plotdata,100 * $correct / $total); + push(@plotdata,100 * $correct / $total); } } # # Create the plot my $title = ($end_index - $begin_index).' submissions'; - my $correctplot = &Apache::loncommon::DrawBarGraph($title, - 'Concept Number', - 'Percent Correct', - 100, - $plotcolors, - undef, - \@Plotdata); - $analysis_html.=''. - ''.$correctplot.''. - ''. - 'Start Time:  '.$interval->{'startdateform'}.'
'. - 'End Time  : '. - ' '.$interval->{'enddateform'}.'
'. -# 'Plot Title  :'.(" "x3). -# $interval->{'titleform'}. - ''. - "\n"; - return $analysis_html; + return &Apache::loncommon::DrawBarGraph($title, + 'Concept Number', + 'Percent Correct', + 100, + $plotcolors, + undef, + \@plotdata); } ######################################################### @@ -1074,7 +1375,7 @@ sub OR_Concept_Time_Analysis { ######################################################### ######################################################### sub OR_excel_sheet { - my ($r,$resource,$PerformanceData,$ORdata) = @_; + my ($r,$resource,$performance_data,$ORdata) = @_; my $response = ''; my (undef,$Foils,$Concepts) = &build_foil_index($ORdata); # @@ -1112,7 +1413,7 @@ sub OR_excel_sheet { # Do something useful } $result = &OR_build_response_data_worksheet($response_data_sheet,$format, - $PerformanceData,$Foils, + $performance_data,$Foils, $ORdata); if ($result ne 'okay') { # Do something useful @@ -1200,7 +1501,7 @@ sub OR_build_problem_data_worksheet { } sub OR_build_response_data_worksheet { - my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_; + my ($worksheet,$format,$performance_data,$Foils,$ORdata)=@_; my $rows_output = 3; my $cols_output = 0; $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'}); @@ -1213,18 +1514,18 @@ sub OR_build_response_data_worksheet { } $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); # - foreach my $row (@$PerformanceData) { + foreach my $row (@$performance_data) { next if (! defined($row)); my ($student,$award,$grading,$submission,$time,$tries) = @$row; my @Foilgrades = split('&',$grading); my @Foilsubs = split('&',$submission); - my %ResponseData; + my %response_data; 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; + $response_data{$foilid.' submission'}=$submission; + $response_data{$foilid.' award'}=$correct; } $worksheet->write($rows_output,$cols_output++,$student); $worksheet->write($rows_output,$cols_output++, @@ -1233,9 +1534,9 @@ sub OR_build_response_data_worksheet { $worksheet->write($rows_output,$cols_output++,$tries); foreach my $foilid (@$Foils) { $worksheet->write($rows_output,$cols_output++, - $ResponseData{$foilid.' submission'}); + $response_data{$foilid.' submission'}); $worksheet->write($rows_output,$cols_output++, - $ResponseData{$foilid.' award'}); + $response_data{$foilid.' award'}); } $rows_output++; $cols_output = 0; @@ -1342,7 +1643,7 @@ sub build_foil_index { ''.$foilindex.''. ''.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').''. ''.$Foildata{$foilid}->{'text'}.''. - ''.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).''. + ''.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').''. "\n"; } else { $table .= ''. @@ -1382,6 +1683,26 @@ sub build_option_index { $table .= "\n"; } +sub build_foil_key { + my ($foils,$extra_data)= @_; + if (! defined($extra_data)) { $extra_data = {}; } + my $table = "\n"; + my $foil_index = 0; + my @rows; + foreach my $foil (&mt('correct foil chosen'),@{$foils}) { + push (@rows, + ''. + ''. + ''. + "\n"); + } + shift(@rows); # Throw away 'correct foil chosen' color + $table .= join('',reverse(@rows)); + $table .= "
'. + (' 'x4).''.&HTML::Entities::encode($foil,'<>&"'). + (' 'x2).$extra_data->{$foil}.'
\n"; +} + ######################################################### ######################################################### ## @@ -1393,7 +1714,7 @@ sub CreateInterface { ## ## Environment variable initialization if (! exists$ENV{'form.AnalyzeOver'}) { - $ENV{'form.AnalyzeOver'} = 'Tries'; + $ENV{'form.AnalyzeOver'} = 'tries'; } ## ## Build the menu @@ -1431,60 +1752,55 @@ sub CreateInterface { ## ## $Str .= ''; - { # These braces are here to organize the code, not scope it. - { - $Str .= ''.&mt('Analyze Over '); - $Str .= &Apache::loncommon::help_open_topic - ('Analysis_Analyze_Over'); - $Str .=''; - $Str .= '
'; - } - { - $Str .= ''.&mt('Analyze as '); - $Str .= &Apache::loncommon::help_open_topic - ('Analysis_Analyze_as'); - $Str .='
'; - } - { - $Str .= '
'.&mt('Number of Plots:'); - $Str .= &Apache::loncommon::help_open_topic - ('Analysis_num_plots'); - $Str .= ''; - } - } + ## + my $showprob_checkbox = + '
'; + ## + my $analyze_selector = ''; + $Str .= '
'.$/; + ## + my $numplots_selector = '
'; + $Str .= ''; + ## + $Str .= ''; $Str .= ''; ## ## @@ -1519,8 +1835,9 @@ sub get_tries_from_row { sub hashify_attempt { my ($row) = @_; my %attempt; + $attempt{'student'} = $row->[&Apache::loncoursedata::RD_sname()]; $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()]; - $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()]; + $attempt{'submission'} = &Apache::lonnet::unescape($row->[&Apache::loncoursedata::RD_submission()]); $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()]; $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()]; return %attempt;