--- loncom/interface/statistics/lonproblemanalysis.pm 2004/10/29 16:39:42 1.101 +++ loncom/interface/statistics/lonproblemanalysis.pm 2005/02/23 02:03:42 1.115 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.101 2004/10/29 16:39:42 matthew Exp $ +# $Id: lonproblemanalysis.pm,v 1.115 2005/02/23 02:03:42 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -37,7 +37,7 @@ use Apache::lonstathelpers(); use Apache::lonstudentsubmissions(); use HTML::Entities(); use Time::Local(); -use Spreadsheet::WriteExcel(); +use capa; my $plotcolors = ['#33ff00', '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933', @@ -52,9 +52,7 @@ my @SubmitButtons = ({ name => 'PrevProb text => 'Next Problem' }, { name => 'break'}, { name => 'SelectAnother', - text => 'Choose a different Problem' }, - { name => 'ExcelOutput', - text => 'Produce Excel Output' }); + text => 'Choose a different Problem' }); sub BuildProblemAnalysisPage { my ($r,$c)=@_; @@ -83,10 +81,7 @@ sub BuildProblemAnalysisPage { &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); $r->rflush(); # - # 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)'; + my $problem_types = '(option|radiobutton|numerical)'; if (exists($ENV{'form.problemchoice'}) && ! exists($ENV{'form.SelectAnother'})) { foreach my $button (@SubmitButtons) { @@ -102,6 +97,9 @@ sub BuildProblemAnalysisPage { $r->print($html.(' 'x5)); } # + $r->print(&Apache::lonstathelpers::submission_report_form + ('problem_analysis')); + # $r->print('
'); $r->rflush(); # @@ -152,19 +150,10 @@ sub BuildProblemAnalysisPage { $problem_data, \@Students); } elsif ($current_problem->{'resptype'} eq 'numerical') { - ## - ## analyze all responses of a problem at once - my $res = $current_problem->{'resource'}; - foreach my $partid (@{$res->{'parts'}}) { - $current_problem->{'part'} = $partid; - foreach my $respid (@{$res->{'partdata'}->{$partid}->{'ResponseIds'}}) { - $current_problem->{'respid'}=$respid; - &NumericalResponseAnalysis($r,$current_problem, - $problem_data,\@Students); - } - } + &numerical_response_analysis($r,$current_problem, + $problem_data,\@Students); } else { - $r->print('

This analysis is not supported

'); + $r->print('

Analysis of '.$current_problem->{'resptype'}.' is not supported

'); } } $r->print('
'); @@ -178,7 +167,6 @@ sub BuildProblemAnalysisPage { } } - ######################################################### ######################################################### ## @@ -186,79 +174,481 @@ sub BuildProblemAnalysisPage { ## ######################################################### ######################################################### -sub NumericalResponseAnalysis { - my ($r,$problem,$problem_data,$Students) = @_; +sub numerical_response_analysis { + my ($r,$problem,$problem_analysis,$students) = @_; my $c = $r->connection(); - my ($resource,$partid,$respid) = ($problem->{'resource'}, - $problem->{'part'}, - $problem->{'respid'}); # - if (scalar(@{$resource->{'parts'}})>1) { - if (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) { - $r->print('

'. - &mt('Part [_1], response [_2].',$partid,$respid). - '

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

'. - &mt('Part [_1]',$partid,$respid). - '

'); - } - } elsif (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) { - $r->print('

'.&mt('Response [_1]',$respid).'

'); + if ($ENV{'form.AnalyzeOver'} !~ /^(tries|time)$/) { + $r->print('Bad request'); } # - my $analysis_html; - my $PerformanceData = &Apache::loncoursedata::get_response_data + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + # 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' ) { - $analysis_html = '

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

'; - $r->print($analysis_html); + # + $problem_analysis->{'answercomputed'} = 1; + if ($problem_analysis->{'answercomputed'}) { + my $answers = + &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$students, + 'Statistics', + 'stats_status'); + $r->print(&numerical_one_dimensional_plot($r,600,150,$answers)); + } + # + if (ref($response_data) ne 'ARRAY') { + $r->print('

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

'); return; } + my $analysis_html = ''; + for (my $plot_num = 1;$plot_num<=$ENV{'form.NumPlots'};$plot_num++) { + my $restriction_function; + my $header_message; + my $stats_message; + my $post_message; # passed through &mt sooner rather than later + my $no_data_message; + my @extra_data; + if ($ENV{'form.AnalyzeOver'} eq 'tries') { + $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)}; + $header_message = 'Attempt [_1]'; + $stats_message = + '[_1] submissions, [_2] correct, [_3] incorrect'; + $post_message = ''; + $no_data_message = 'No data exists for attempt [_1]'; + } else { + my $starttime = &Apache::lonhtmlcommon::get_date_from_form + ('startdate_'.$plot_num); + my $endtime = &Apache::lonhtmlcommon::get_date_from_form + ('enddate_'.$plot_num); + ($starttime,$endtime) = &ensure_start_end_times + ($starttime,$endtime, + &get_time_from_row($response_data->[0]), + &get_time_from_row($response_data->[-1]), + $plot_num); + $header_message = 'Data from [_2] to [_3]'; + $extra_data[0] = &Apache::lonlocal::locallocaltime($starttime); + $extra_data[1] = &Apache::lonlocal::locallocaltime($endtime); + # + $stats_message = + '[_1] submissions from [_4] students, [_2] correct, [_3] incorrect'; + # + $post_message = + &mt('Start time: [_1]', + &Apache::lonhtmlcommon::date_setter + ('Statistics','startdate_'.$plot_num,$starttime)). + '
'. + &mt('End time: [_1]', + &Apache::lonhtmlcommon::date_setter + ('Statistics','enddate_'.$plot_num,$endtime)); + $restriction_function = + sub { + my $t = $_[0]->{'timestamp'}; + if ($t >= $starttime && $t < $endtime) { + return 1; + } else { + return 0; + } + }; + $no_data_message = 'No data for [_2] to [_3]'; + } + # + my ($correct,$answers) = + &numerical_determine_answers($r,$resource,$partid, + $respid,$students); + if ($c->aborted()) { return; }; + # + my ($responses,$stats) = + &numerical_classify_responses($response_data,$correct, + $restriction_function); + if ($stats->{'submission_count'} == 0) { + $analysis_html.= + ''; + } else { + $analysis_html.= + ''. + ''. + ''.''. + ''. + ''; + } + if ($post_message ne '') { + $analysis_html .= + ''; + } + } + $analysis_html.='
'. + &mt($no_data_message,$plot_num,@extra_data). + '
'. + &mt($header_message,$plot_num,@extra_data). + '
'. + &mt($stats_message, + $stats->{'submission_count'}, + $stats->{'correct_count'}, + $stats->{'incorrect_count'}, + $stats->{'students'}, + @extra_data). + '
'. + &numerical_plot_percent($r,$responses,$stats).''. + &numerical_plot_differences($r,$responses,$stats).'
'.$post_message.'
'; + $r->print($analysis_html); # - # This next call causes all the waiting around that people complain about - &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students, - 'Statistics', - 'stats_status'); - return if ($c->aborted()); - # - # Collate the data - my %Data; - foreach my $student (@$Students) { - my $answer = $student->{'answer'}; - $Data{$answer}++; - } - my @Labels = sort {$a <=> $b } keys(%Data); - my @PlotData = @Data{@Labels}; - # - my $width = 500; - my $height = 100; - my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students), - \@Labels,\@PlotData); - $r->print($plot); return; } -sub one_dimensional_plot { - my ($r,$width,$height,$N,$Labels,$Data)=@_; +sub numerical_plot_percent { + my ($r,$responses,$stats) = @_; # - # Compute data -> image scaling factors - my $min = $Labels->[0]; - my $max = $Labels->[-1]; - if ($max == $min) { - $max =$min+1; + my $total = $stats->{'submission_count'}; + return '' if ($total == 0); + my $max_bins = 50; + my $lowest_percent = $stats->{'min_percent'}; + my $highest_percent = $stats->{'max_percent'}; + my $percent_spread = $highest_percent - $lowest_percent; + foreach (qw/20 30 40 50 100 200/) { + if ($percent_spread < $_) { + $highest_percent =$_/2; + last; + } + } + my $bin_size = 1; + foreach (qw/0.01 0.05 0.1 0.5 1 2 5 10 20 25 50 100/) { + if ($lowest_percent/2 < $_){ + $bin_size = $_; + last; + } + } + my @bins; + for (my $bin = -$highest_percent;$bin<0;$bin+=$bin_size) { + push (@bins,$bin); + } + for (my $bin = 0; $bin<$highest_percent;$bin+=$bin_size) { + push (@bins,$bin); + } + push(@bins,$highest_percent); + # + my @correct; + my @incorrect; + my @count; + while (my ($ans,$submissions) = each(%$responses)) { + while (my ($submission,$counts) = each(%$submissions)) { + my ($correct_count,$incorrect_count) = @$counts; + my $scaled_value = 100*($submission-$ans)/abs($ans); + if ($scaled_value < $bins[0]) { + $bins[0]=$scaled_value -1; + } + my $bin; + for ($bin=0;$bin<$#bins;$bin++) { + last if ($bins[$bin]>$scaled_value); + } + $correct[$bin-1]+=$correct_count; + $incorrect[$bin-1]+=$incorrect_count; + $count[$bin-1]+=$correct_count+$incorrect_count; + } + } + # + my @plot_correct = @correct; + my @plot_incorrect = @incorrect; + my $max; + for (my $i=0;$i<$#bins;$i++) { + $plot_correct[$i] *= 100/$total; + $plot_incorrect[$i] *= 100/$total; + if (! defined($max) || + $max < $plot_correct[$i]+$plot_incorrect[$i] ) { + $max = $plot_correct[$i]+$plot_incorrect[$i]; + } + } + foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) { + if ($max <$_) { $max = $_; last; } + } + # + my $title = &mt('Percent Difference'); + my @labels = (1..scalar(@bins)-1); + my $graph = &Apache::loncommon::DrawBarGraph + ($title,'Percent Difference from Correct','Percent of Answers', + $max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, + {xskip=>1}); + # + my $table = $graph.$/. + &numerical_bin_table(\@bins,\@labels,\@incorrect,\@correct,\@count).$/; + return $table; +} + +sub numerical_plot_differences { + my ($r,$responses,$stats) = @_; + # + my $total = $stats->{'submission_count'}; + return '' if ($total == 0); + my $max_bins = 21; + my $min_bin_size = $stats->{'min_abs'}; + my $low_bin = $stats->{'lowest_ans'}-$stats->{'max_bin_size'}; + my $high_bin = $stats->{'highest_ans'}+$stats->{'max_bin_size'}; + if ($high_bin > 0 && $low_bin > -$high_bin) { + $low_bin = -$high_bin; + } elsif ($low_bin < 0 && $high_bin < -$low_bin) { + $high_bin = -$low_bin; + } + if (($high_bin -$low_bin)/$min_bin_size * 2 > $max_bins) { + $min_bin_size = abs($high_bin - $low_bin) / $max_bins * 2; + } + my @bins; + for (my $num = $low_bin;$num <= $high_bin;$num+=($min_bin_size/2)) { + push(@bins,$num); } - my $h_scale = ($width-10)/($max-$min); # + my @correct; + my @incorrect; + my @count; + while (my ($ans,$submissions) = each(%$responses)) { + while (my ($submission,$counts) = each(%$submissions)) { + my ($correct_count,$incorrect_count) = @$counts; + my $scaled_value = $submission-$ans; + if ($scaled_value < $bins[0]) { + $bins[0]=$scaled_value-1; + } + my $bin=0; + for ($bin=0;$bin<$#bins;$bin++) { + last if ($bins[$bin]>$scaled_value); + } + $correct[$bin-1]+=$correct_count; + $incorrect[$bin-1]+=$incorrect_count; + $count[$bin-1]+=$correct_count+$incorrect_count; + } + } + my @plot_correct = @correct; + my @plot_incorrect = @incorrect; + my $max; + for (my $i=0;$i<=$#bins;$i++) { + $plot_correct[$i] *= 100/$total; + $plot_incorrect[$i] *= 100/$total; + if (! defined($max) || + $max < $plot_correct[$i]+$plot_incorrect[$i] ) { + $max = $plot_correct[$i]+$plot_incorrect[$i]; + } + } + foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) { + if ($max <$_) { $max = $_; last; } + } + # + my $title = &mt('Difference between submission and correct'); + my @labels = (1..scalar(@bins)-1); + my $graph = &Apache::loncommon::DrawBarGraph + ($title,'Difference from Correct','Percent of Answers', + $max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, + {xskip=>1}); + # + my $table = $graph.$/. + &numerical_bin_table(\@bins,\@labels,\@incorrect,\@correct,\@count).$/; + return $table; +} + +sub numerical_classify_responses { + my ($full_row_data,$correct,$function) = @_; + my %submission_data; + my %students; + my %stats; + my $max=0; + foreach my $row (@$full_row_data) { + my %subm = &hashify_attempt($row); + if (ref($correct) eq 'HASH') { + my $s_correct = $correct->{$subm{'student'}}; + $subm{'correct'} = $s_correct->{'answer'}; + foreach my $item ('unit','ans_low','ans_high') { + $subm{$item} = $s_correct->{$item}; + } + } else { # This probably never happens.... + $subm{'correct'} = $correct->{'answer'}; + $subm{'unit'} = $correct->{'unit'}; + } + # + my $abs_low =abs($subm{'correct'}-$subm{'ans_low'}); + my $abs_high=abs($subm{'correct'}-$subm{'ans_high'}); + if (! defined($stats{'min_abs'}) || + $stats{'min_abs'} > $abs_low) { + $stats{'min_abs'} = $abs_low; + } + if ($stats{'min_abs'} > $abs_high) { + $stats{'min_abs'} = $abs_high; + } + if (! defined($stats{'max_abs'}) || + $stats{'max_abs'} < $abs_low) { + $stats{'max_abs'} = $abs_low; + } + if ($stats{'max_abs'} < $abs_high) { + $stats{'max_abs'} = $abs_high; + } + my $low_percent = 100 * abs($abs_low / $subm{'correct'}); + my $high_percent = 100 * abs($abs_high / $subm{'correct'}); + if (! defined($stats{'min_percent'}) || + $stats{'min_percent'} > $low_percent) { + $stats{'min_percent'} = $low_percent; + } + if ($stats{'min_percent'} > $high_percent) { + $stats{'min_percent'} = $high_percent; + } + if (! defined($stats{'max_percent'}) || + $stats{'max_percent'} < $low_percent) { + $stats{'max_percent'} = $low_percent; + } + if ($stats{'max_percent'} < $high_percent) { + $stats{'max_percent'} = $high_percent; + } + if (! defined($stats{'lowest_ans'}) || + $stats{'lowest_ans'} > $subm{'correct'}) { + $stats{'lowest_ans'} = $subm{'correct'}; + } + if (! defined($stats{'highest_ans'}) || + $stats{'highest_ans'} < $subm{'correct'}) { + $stats{'highest_ans'} = $subm{'correct'}; + } + # + $subm{'submission'} =~ s/=\d+\s*$//; + if (&$function(\%subm)) { + my $scaled = '1'; + my ($sname,$sdom) = split(':',$subm{'student'}); + my ($myunit,$mysub) = ($subm{'unit'},$subm{'submission'}); + my $result = + &capa::caparesponse_get_real_response($myunit, + $mysub, + \$scaled); +# &Apache::lonnet::logthis('scaled = '.$scaled.' result ='.$result); + next if (! defined($scaled)); +# next if ($result ne '6'); + my $submission = $scaled; + $students{$subm{'student'}}++; + $stats{'submission_count'}++; + if (&numerical_submission_is_correct($subm{'award'})) { + $stats{'correct_count'}++; + $submission_data{$subm{'correct'}}->{$submission}->[0]++; + } elsif (&numerical_submission_is_incorrect($subm{'award'})) { + $stats{'incorrect_count'}++; + $submission_data{$subm{'correct'}}->{$submission}->[1]++; + } + } + } + $stats{'students'}=scalar(keys(%students)); + return (\%submission_data,\%stats); +} + +sub numerical_submission_is_correct { + my ($award) = @_; + if ($award =~ /^(APPROX_ANS|EXACT_ANS)$/) { + return 1; + } else { + return 0; + } +} + +sub numerical_submission_is_incorrect { + my ($award) = @_; + if ($award =~ /^(INCORRECT)$/) { + return 1; + } else { + return 0; + } +} + +sub numerical_bin_table { + my ($bins,$labels,$incorrect,$correct,$count)=@_; + my $table = + ''. + ''. + ''. + ''. + ''. + ''.$/; + for (my $i=0;$i[$i]; + if ($i == 0) { $lownum = '-∞'; } + my $highnum = $bins->[$i+1]; + if ($i == scalar(@{$bins})-2) { $highnum = '∞'; } + $table .= + ''. + ''. + ''. + ''. + ''. + ''. + ''. + ''. + ''.$/; + } + $table.= '
'.&mt('Bar').''.&mt('Range').''.&mt('Incorrect').''.&mt('Correct').''.&mt('Count').'
'.$labels->[$i].''.$lownum.' - '.$highnum.''.$incorrect->[$i].''.$correct->[$i].''.$count->[$i].'
'; + return $table; +} + +sub numerical_determine_answers { + my ($r,$resource,$partid,$respid,$students)=@_; + my $c = $r->connection(); + # + my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin + ($r,'Student Answer Compilation Status', + 'Student Answer Compilation Progress', scalar(@$students), + 'inline',undef,'Statistics','stats_status'); + # + # Read in the cache (if it exists) before we start timing things. + &Apache::lonstathelpers::ensure_proper_cache($resource->{'symb'}); + # + my $correct; + my %answers; + foreach my $student (@$students) { + last if ($c->aborted()); + my $sname = $student->{'username'}; + my $sdom = $student->{'domain'}; + # analyze problem + my $analysis = + &Apache::lonstathelpers::analyze_problem_as_student($resource, + $sname, + $sdom); + # make the key + my $key = $partid.'.'.$respid; + foreach my $item ('answer','unit','ans_high','ans_low') { + $correct->{$sname.':'.$sdom}->{$item} = + $analysis->{$key.'.'.$item}->[0]; + } + $answers{$analysis->{$key.'.answer'}->[0]}++; + &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, + &mt('last student')); + } + &Apache::lonstathelpers::write_analysis_cache(); + &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); + return ($correct,\%answers); +} + +# +# Inputs: $r, $width, $height, $data +# $n = number of students +# $data = hashref of $answer => $frequency pairs +sub numerical_one_dimensional_plot { + my ($r,$width,$height,$data)=@_; + # + # Compute data -> image scaling factors my $max_y = 0; - foreach (@$Data) { - $max_y = $_ if ($max_y < $_); + my $min_x = undef; + my $max_x = undef; + my $n = 0; + while (my ($answer,$count) = each(%$data)) { + $n+=$count; + $max_y = $count if ($max_y < $count); + if (! defined($min_x) || $answer < $min_x) { + $min_x = $answer; + } + if (! defined($max_x) || $answer > $max_x) { + $max_x = $answer; + } + } + # + my $min_max_difference = $max_x - $min_x; + if (! defined($min_max_difference) || $min_max_difference == 0) { + $min_max_difference = 1; } + my $h_scale = ($width-10)/$min_max_difference; + # my $ticscale = 5; if ($max_y * $ticscale > $height/2) { $ticscale = int($height/2/$max_y); @@ -268,17 +658,16 @@ sub one_dimensional_plot { # Create the plot my $plot = qq{}; - for (my $idx=0;$idx[$idx] - $min); - my $top = $height/2-$Data->[$idx]*$ticscale; - my $bottom = $height/2+$Data->[$idx]*$ticscale; - $plot .= - &line($xloc,$top,$xloc,$bottom,'888888',1); + while (my ($answer,$count) = each(%$data)) { + my $xloc = 5+$h_scale*($answer - $min_x); + my $top = $height/2-$count*$ticscale; + my $bottom = $height/2+$count*$ticscale; + $plot .= &line($xloc,$top,$xloc,$bottom,'888888',1); } # # Put the scale on last to ensure it is on top of the data. - if ($min < 0 && $max > 0) { - my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates + if ($min_x < 0 && $max_x > 0) { + my $circle_x = 5+$h_scale*abs($min_x); # '0' in data coordinates my $r = 4; $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1); $plot .= &circle($circle_x,$height/2,$r+1,'000000'); @@ -288,21 +677,18 @@ sub one_dimensional_plot { } $plot .= ''; my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot); - - my $title = 'Distribution of correct answers'; my $result = ''. ''. ''. - ''. + ''. ''. - ''. + ''. ''. - ''. '
'. - ''.$title.' (N='.$N.')'. - ''. + ''.&mt('Distribution of correct answers').''. + '
'.&mt('[_1] students, [_2] distinct correct answers', + $n,scalar(keys(%$data))). + '
'.&mt('Maximum number of coinciding values: [_1]',$max_y). '
'.$min.''.$min_x.''.$plotresult.''.$max.''.$max_x.'
'. - 'Maximum Number of Coinciding Values: '.$max_y. - '
'; return $result; } @@ -312,7 +698,7 @@ sub one_dimensional_plot { ## These should probably go somewhere more suitable soon. sub line { my ($x1,$y1,$x2,$y2,$color,$thickness) = @_; - return qq{$/}; + return qq{}; } sub text { @@ -341,33 +727,6 @@ sub circle { return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled); } -sub build_student_data_worksheet { - my ($workbook,$format) = @_; - my $rows_output = 3; - my $cols_output = 0; - my $worksheet = $workbook->addworksheet('Student Data'); - $worksheet->write($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 $worksheet; -} - ######################################################### ######################################################### ## @@ -389,6 +748,9 @@ sub radio_response_analysis { my $analysis_html; my $foildata = $problem_analysis->{'_Foils'}; my ($table,$foils,$concepts) = &build_foil_index($problem_analysis); + if (! defined($concepts)) { + $concepts = []; + } # my %true_foils; my $num_true = 0; @@ -461,7 +823,7 @@ sub radio_response_analysis { &get_time_from_row($response_data->[-1]), $plot_num); $pre_graph_text = - 'Data from [_5] to [_6], [_2] submissions, [_3] correct, [_4] incorrect'; + 'Data from [_6] to [_7]
[_2] submissions from [_5] students, [_3] correct, [_4] incorrect'; $extra_data[0] = &Apache::lonlocal::locallocaltime($starttime); $extra_data[1] = &Apache::lonlocal::locallocaltime($endtime); # @@ -485,8 +847,8 @@ sub radio_response_analysis { $no_data_text = 'No data for [_5] to [_6]'; } my $foil_choice_data = - &RR_classify_response_data($response_data,$correct, - $restriction_function); + &classify_response_data($response_data,$correct, + $restriction_function); # &Apache::lonstathelpers::log_hash_ref($foil_choice_data); my $answers; if (ref($correct)) { @@ -528,8 +890,9 @@ sub radio_response_analysis { ''. &mt($pre_graph_text, $plot_num,$foil_choice_data->{'_count'}, - $correct, + $correct, $foil_choice_data->{'_count'}-$correct, + $foil_choice_data->{'_students'}, @extra_data). ''.$/; $analysis_html.= @@ -596,7 +959,6 @@ sub RR_concept_plot { } else { $incorrect_by_concept{$concept->{'name'}} += $foil_data->{$foil}->{$choice}; - } } } @@ -756,11 +1118,22 @@ sub RR_create_stacked_selection_plot { return ($graph,\%count_per_foil); } + +######################################################### +######################################################### +## +## Misc routines +## +######################################################### +######################################################### + # if $correct is a hash ref, it is assumed to be indexed by student names. # the values are assumed to be hash refs with a key of 'answer'. -sub RR_classify_response_data { +sub classify_response_data { my ($full_row_data,$correct,$function) = @_; my %submission_data; + my %students; + my $max=0; foreach my $row (@$full_row_data) { my %subm = &hashify_attempt($row); if (ref($correct) eq 'HASH') { @@ -770,13 +1143,19 @@ sub RR_classify_response_data { } $subm{'submission'} =~ s/=\d+\s*$//; if (&$function(\%subm)) { + $students{$subm{'student'}}++; $submission_data{'_count'}++; if (&submission_is_correct($subm{'award'})) { $submission_data{'_correct'}++; } - $submission_data{$subm{'correct'}}->{$subm{'submission'}}++; + + if($max<++$submission_data{$subm{'correct'}}->{$subm{'submission'}}) { + $max=$submission_data{$subm{'correct'}}->{$subm{'submission'}}; + } } } + $submission_data{'_max'} = $max; + $submission_data{'_students'}=scalar(keys(%students)); return \%submission_data; } @@ -804,30 +1183,22 @@ sub OptionResponseAnalysis { ''); } else { $r->rflush(); - if (exists($ENV{'form.ExcelOutput'})) { - my $result = &OR_excel_sheet($r,$resource, - $PerformanceData, - $problem_data); - $r->print($result); + if ($ENV{'form.AnalyzeOver'} eq 'tries') { + my $analysis_html = &OR_tries_analysis($r, + $PerformanceData, + $problem_data); + $r->print($analysis_html); + $r->rflush(); + } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { + my $analysis_html = &OR_time_analysis($PerformanceData, + $problem_data); + $r->print($analysis_html); $r->rflush(); } else { - if ($ENV{'form.AnalyzeOver'} eq 'tries') { - my $analysis_html = &OR_tries_analysis($r, - $PerformanceData, - $problem_data); - $r->print($analysis_html); - $r->rflush(); - } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { - my $analysis_html = &OR_time_analysis($PerformanceData, - $problem_data); - $r->print($analysis_html); - $r->rflush(); - } else { - $r->print('

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

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

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

'); } } } @@ -842,6 +1213,9 @@ sub OR_tries_analysis { my $mintries = 1; my $maxtries = $ENV{'form.NumPlots'}; my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); + if (! defined($Concepts)) { + $Concepts = []; + } my %response_data = &OR_analyze_by_tries($r,$PerformanceData, $mintries,$maxtries); my $analysis = ''; @@ -929,7 +1303,7 @@ sub OR_tries_analysis { # $concept_graph = &Apache::loncommon::DrawBarGraph ('Correct Concepts','Concept Number','Percent Correct', - 100,$plotcolors,undef,\@concept_plot_data); + 100,$plotcolors,undef,\@concept_plot_data,{xskip=>1}); } # # Create Foil Plots @@ -967,7 +1341,7 @@ sub OR_tries_analysis { # my $correct_graph = &Apache::loncommon::DrawBarGraph ('Correct Statements','Statement','% Answered Correct', - 100,$plotcolors,\@Labels,$Datasets[0]); + 100,$plotcolors,\@Labels,$Datasets[0],{xskip=>1}); # # @@ -979,7 +1353,7 @@ sub OR_tries_analysis { $response_data{'_correct'}->[$try]; my $incorrect_graph = &Apache::loncommon::DrawBarGraph ('Incorrect Statements','Statement','% Chosen Incorrectly', - 100,$plotcolors,\@Labels,@Datasets); + 100,$plotcolors,\@Labels,@Datasets,{xskip=>1}); $analysis_html.= ''. ''. @@ -1099,7 +1473,7 @@ sub OR_time_analysis { &OR_time_process_data($performance_data,$begin_index,$end_index); ## $table .= ''. - &mt('[_1] submissions from [_2] students submitting, [_3] correct, [_4] incorrect', + &mt('[_1] submissions from [_2] students, [_3] correct, [_4] incorrect', $data_count,$student_count,$correct,$data_count-$correct). ''.$/; my $concept_correct_plot = ''; @@ -1173,7 +1547,8 @@ sub OR_Foil_Time_Analysis { 100, $plotcolors, undef, - $plotdata[0]); + $plotdata[0], + {xskip=>1}); for (my $j=0; $j< scalar(@{$plotdata[0]});$j++) { $plotdata[0]->[$j]=0; } @@ -1184,7 +1559,7 @@ sub OR_Foil_Time_Analysis { 100, $plotcolors, undef, - @plotdata); + @plotdata,{xskip=>1}); return ($correct_plot,$incorrect_plot); } @@ -1215,7 +1590,7 @@ sub OR_Concept_Time_Analysis { 100, $plotcolors, undef, - \@plotdata); + \@plotdata,{xskip=>1}); } sub OR_time_process_data { @@ -1256,183 +1631,6 @@ sub OR_time_process_data { scalar(keys(%distinct_students))); } -######################################################### -######################################################### -## -## Excel output -## -######################################################### -######################################################### -sub OR_excel_sheet { - my ($r,$resource,$performance_data,$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'); - my $format = &Apache::loncommon::define_excel_formats($workbook); - # - # Create and populate main worksheets - my $problem_data_sheet = $workbook->addworksheet('Problem Data'); - my $student_data_sheet = &build_student_data_worksheet($workbook,$format); - 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; - $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format, - $Concepts,$ORdata); - if ($result ne 'okay') { - # Do something useful - } - $result = &OR_build_response_data_worksheet($response_data_sheet,$format, - $performance_data,$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 $result; -} - -sub OR_build_problem_data_worksheet { - my ($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,$string); - } - return 'okay'; -} - -sub OR_build_response_data_worksheet { - my ($worksheet,$format,$performance_data,$Foils,$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 $row (@$performance_data) { - next if (! defined($row)); - my ($student,$award,$grading,$submission,$time,$tries) = @$row; - my @Foilgrades = split('&',$grading); - my @Foilsubs = split('&',$submission); - 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); - $response_data{$foilid.' submission'}=$submission; - $response_data{$foilid.' award'}=$correct; - } - $worksheet->write($rows_output,$cols_output++,$student); - $worksheet->write($rows_output,$cols_output++, - &Apache::lonstathelpers::calc_serial($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++, - $response_data{$foilid.' submission'}); - $worksheet->write($rows_output,$cols_output++, - $response_data{$foilid.' award'}); - } - $rows_output++; - $cols_output = 0; - } - return; -} - sub build_foil_index { my ($ORdata) = @_; return if (! exists($ORdata->{'_Foils'}));