--- loncom/interface/statistics/lonproblemanalysis.pm 2004/10/27 17:47:13 1.96 +++ loncom/interface/statistics/lonproblemanalysis.pm 2004/12/02 21:53:33 1.106 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.96 2004/10/27 17:47:13 matthew Exp $ +# $Id: lonproblemanalysis.pm,v 1.106 2004/12/02 21:53:33 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -38,6 +38,7 @@ use Apache::lonstudentsubmissions(); use HTML::Entities(); use Time::Local(); use Spreadsheet::WriteExcel(); +use capa; my $plotcolors = ['#33ff00', '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933', @@ -148,23 +149,14 @@ sub BuildProblemAnalysisPage { $problem_data, \@Students); } elsif ($current_problem->{'resptype'} eq 'radiobutton') { - &RadioResponseAnalysis($r,$current_problem, - $problem_data, - \@Students); + &radio_response_analysis($r,$current_problem, + $problem_data, + \@Students); } elsif ($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

'); } } $r->print('
'); @@ -178,7 +170,6 @@ sub BuildProblemAnalysisPage { } } - ######################################################### ######################################################### ## @@ -186,79 +177,432 @@ sub BuildProblemAnalysisPage { ## ######################################################### ######################################################### -sub NumericalResponseAnalysis { - my ($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 $responses = &numerical_classify_responses($response_data,$correct, + $restriction_function); + if ($responses->{'_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, + $responses->{'_count'}, + $responses->{'_correct'}, + $responses->{'_count'}-$responses->{'_correct'}, + $responses->{'_students'}, + @extra_data). + '
'. + &numerical_plot_percent($r,$responses).''. + &numerical_plot_differences($r,$responses).'
'.$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) = @_; # - # Compute data -> image scaling factors - my $min = $Labels->[0]; - my $max = $Labels->[-1]; - if ($max == $min) { - $max =$min+1; + my $total = $responses->{'_count'}; + return '' if ($total == 0); + my $minbin = 5; + while (my ($interval,$submissions) = each(%$responses)) { + next if ($interval =~ /^_/); + my ($ans,$ans_low,$ans_high) = split(" ",$interval); + my $low_percent = abs(100*($ans-$ans_low)/$ans); + my $high_percent = abs(100*($ans_high-$ans)/$ans); + if ($minbin > $high_percent) { $minbin = $high_percent; } + if ($minbin > $low_percent) { $minbin = $low_percent; } + } + # + my @bins; + if ($minbin < 1) { + @bins = ('0.1','0.5','1.0','1.5','2.0','2.5','3.0','4.0','5.0',10,20,50,100); + } elsif ($minbin < 2) { + @bins = ('0.5','1.0','1.5','2.0','2.5','3.0','4.0','5.0',10,20,50,100); + } elsif ($minbin < 5) { + @bins = (1,2,3,4,5,10,25,50,75,100,200); + } elsif ($minbin < 10) { + @bins = (2,4,6,8,10,12,15,20,25,30,50,75,100,200); + } else { + @bins = (5,10,15,20,25,30,50,75,100,200); + } + my @labels = (1..scalar(@bins)); + # + my @correct; + my @incorrect; + my @count; + while (my ($interval,$submissions) = each(%$responses)) { + next if ($interval =~ /^_/); + my ($ans,$ans_low,$ans_high) = split(" ",$interval); + while (my ($submission,$counts) = each(%$submissions)) { + my ($correct_count,$incorrect_count) = @$counts; + my $scaled_value = abs(($submission-$ans)/$ans); + my $bin=0; + for ($bin=0;$bin<$#bins;$bin++) { # not <= for a reason + last if ($bins[$bin]>$scaled_value); + } + $correct[$bin]+=$correct_count; + $incorrect[$bin]+=$incorrect_count; + $count[$bin]+=$correct_count+$incorrect_count; + } + } + # + my @plot_correct; + my @plot_incorrect; + for (my $i=0;$i<=$#bins;$i++) { + $plot_correct[$i] = $correct[$i]*100/$total; + $plot_incorrect[$i] = $incorrect[$i]*100/$total; + } + my $title = &mt('Distribution by Percent'); + my $graph = &Apache::loncommon::DrawBarGraph + ($title,'Percent difference from correct','Number of answers', + 100,['#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) = @_; + # + my $total = $responses->{'_count'}; + return '' if ($total == 0); + my $minbin = undef; + my $maxbin = undef; + while (my ($interval,$submissions) = each(%$responses)) { + next if ($interval =~ /^_/); + my ($ans,$ans_low,$ans_high) = split(" ",$interval); + my $low_diff = abs($ans-$ans_low); + my $high_diff = abs($ans_high-$ans); + if (! defined($maxbin)) { $maxbin = $low_diff;} + if (! defined($minbin)) { $minbin = $low_diff;} + # + if ($minbin > $high_diff) { $minbin = $high_diff; } + if ($minbin > $low_diff ) { $minbin = $low_diff; } + # + if ($maxbin < $high_diff) { $maxbin = $high_diff; } + if ($maxbin < $low_diff ) { $maxbin = $low_diff; } + } + # + my @bins; + my @labels; + # Hmmmm, should switch to absolute difference + for (my $i=1;$i<=20;$i++) { + push(@bins,$i*$minbin/2); + push(@labels,$i); + } + # + my @correct; + my @incorrect; + my @count; + while (my ($interval,$submissions) = each(%$responses)) { + next if ($interval =~ /^_/); + my ($ans,$ans_low,$ans_high) = split(" ",$interval); + while (my ($submission,$counts) = each(%$submissions)) { + my ($correct_count,$incorrect_count) = @$counts; + my $value = abs($submission-$ans); + my $bin=0; + for ($bin=0;$bin<$#bins;$bin++) { # not <= for a reason + last if ($bins[$bin]>$value); + } + $correct[$bin]+=$correct_count; + $incorrect[$bin]+=$incorrect_count; + $count[$bin]+=$correct_count+$incorrect_count; + } + } + # + my @plot_correct; + my @plot_incorrect; + for (my $i=0;$i<=$#bins;$i++) { + $plot_correct[$i] = $correct[$i]*100/$total; + $plot_incorrect[$i] = $incorrect[$i]*100/$total; + } + my $title = &mt('Distribution by Magnitude'); + my $graph = &Apache::loncommon::DrawBarGraph + ($title,'magnitude difference from correct','Number of answers', + 100,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, + {xskip=>1}); + # + my $table = $graph.$/. + &numerical_bin_table(\@bins,\@labels,\@incorrect,\@correct,\@count).$/; + return $table; +} + +sub numerical_classify_responses { + &Apache::lonnet::logthis('--------------'); + my ($full_row_data,$correct,$function) = @_; + my %submission_data; + my %students; + my $max=0; + foreach my $row (@$full_row_data) { +# &Apache::lonnet::logthis(' row = '.join(',',@$row)); + my %subm = &hashify_attempt($row); + if (ref($correct) eq 'HASH') { + $subm{'correct'} = $correct->{$subm{'student'}}->{'answer'}; + $subm{'unit'} = $correct->{$subm{'student'}}->{'unit'}; + } else { # This probably never happens.... + $subm{'correct'} = $correct->{'answer'}; + $subm{'unit'} = $correct->{'unit'}; + } + $subm{'submission'} =~ s/=\d+\s*$//; + if (&$function(\%subm)) { + my $scaled = '1'; + my ($sname,$sdom) = split(':',$subm{'student'}); + # Note that $subm{'unit'} is modified by the following call + # We do not use it again but you should be aware just in case. +# my ($myunit,$mysub) = ($subm{'unit'},$subm{'submission'}); +# $myunit = 'm'; +# # &Apache::lonnet::logthis($myunit); +# my $result = +# &capa::caparesponse_get_real_response($myunit, +# $mysub, +# \$scaled); +# # &Apache::lonnet::logthis(' '.$myunit.':'.$subm{'unit'}. +# # ' '.$mysub.':'.$subm{'submission'}.'; '.$result); +# next if (! defined($scaled)); +# next if ($result ne '6'); +# my $submission = $scaled; + my $submission = $subm{'submission'}; + $students{$subm{'student'}}++; + if (&numerical_submission_is_correct($subm{'award'})) { + &Apache::lonnet::logthis('correct:'.$submission.':'.$subm{'correct'}); + $submission_data{'_correct'}++; + $submission_data{'_count'}++; + $submission_data{$subm{'correct'}}->{$submission}->[0]++; + } elsif (&numerical_submission_is_incorrect($subm{'award'})) { + &Apache::lonnet::logthis('incorrect:'.$submission.':'.$subm{'correct'}); + $submission_data{'_count'}++; + $submission_data{$subm{'correct'}}->{$submission}->[1]++; + } + my $value = + $submission_data{$subm{'correct'}}->{$submission}->[0]+ + $submission_data{$subm{'correct'}}->{$submission}->[1]; + if ($max < $value) { $max = $value; } + } } - my $h_scale = ($width-10)/($max-$min); + $submission_data{'_max'} = $max; + $submission_data{'_students'}=scalar(keys(%students)); + return \%submission_data; +} + +sub numerical_submission_is_correct { + my ($award) = @_; + &Apache::lonnet::logthis('award = "'.$award.'"'); + if ($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-1]; + } + my $highnum = $bins->[$i]; + $table .= + ''. + ''. + ''. + ''. + ''. + ''. + ''. + ''. + ''.$/; + } + $table.= '
'.&mt('Bar').''.&mt('Range').''.&mt('Incorrect').''.&mt('Correct').''.&mt('Count').'
'.$labels->[$i].''.$lownum.' - '.$highnum.''.$incorrect->[$i].''.$correct->[$i].''.$count->[$i].'
'; + return $table; +} + +sub numerical_determine_answers { + my ($r,$resource,$partid,$respid,$students)=@_; + my $c = $r->connection(); + # + # FIX ME: May need progress dialog updates + # + # Read in the cache (if it exists) before we start timing things. + &Apache::lonstathelpers::ensure_proper_cache($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; + $correct->{$sname.':'.$sdom}->{'answer'} = + $analysis->{$key.'.answer'}->[0]; + $correct->{$sname.':'.$sdom}->{'unit'} = + $analysis->{$key.'.unit'}->[0]; + $answers{$analysis->{$key.'.answer'}->[0]}++; + } + &Apache::lonstathelpers::write_analysis_cache(); + return ($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 +612,16 @@ 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 +631,18 @@ 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 $result; } @@ -312,7 +652,7 @@ sub one_dimensional_plot { ## These should probably go somewhere more suitable soon. sub line { my ($x1,$y1,$x2,$y2,$color,$thickness) = @_; - return qq{$/}; + return qq{}; } sub text { @@ -341,33 +681,6 @@ 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 $worksheet; -} - ######################################################### ######################################################### ## @@ -375,53 +688,13 @@ sub build_student_data_worksheet { ## ######################################################### ######################################################### -sub RadioResponseAnalysis { +sub radio_response_analysis { my ($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,$students); - } else { + # + if ($ENV{'form.AnalyzeOver'} !~ /^(tries|time)$/) { $r->print('Bad request'); } - return; -} - -sub RR_computed_tries_analysis { - my ($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'}); @@ -429,6 +702,21 @@ sub RR_tries_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; + if (! $problem_analysis->{'answercomputed'}) { + foreach my $foil (@$foils) { + if ($foildata->{$foil}->{'value'} eq 'true') { + $true_foils{$foil}++; + } + } + $num_true = scalar(keys(%true_foils)); + } + # $analysis_html .= $table; # Gather student data my $response_data = &Apache::loncoursedata::get_response_data @@ -451,12 +739,11 @@ sub RR_tries_analysis { 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' ) { + # + if (! defined($response_data) || ref($response_data) ne 'ARRAY' ) { $analysis_html = '

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

'; @@ -465,12 +752,58 @@ sub RR_tries_analysis { } # $analysis_html.=''; - for (my $try = 1;$try<=$ENV{'form.NumPlots'};$try++) { + for (my $plot_num = 1;$plot_num<=$ENV{'form.NumPlots'};$plot_num++) { # classify data ->correct foil -> selected foil - my $attempt_restriction_function = - my $foil_choice_data = - &RR_classify_response_data($response_data,$correct, - sub {($_[0]->{'tries'} == $try?1:0)}); + my ($restriction_function, + $correct_foil_title,$incorrect_foil_title, + $pre_graph_text,$post_graph_text, + $no_data_text,@extra_data); + if ($ENV{'form.AnalyzeOver'} eq 'tries') { + $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)}; + $correct_foil_title = 'Attempt '.$plot_num; + $incorrect_foil_title = 'Attempt '.$plot_num; + $pre_graph_text = + 'Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect'; + $post_graph_text = ''; + $no_data_text = 'No data exists for attempt [_1]'; + } elsif ($ENV{'form.AnalyzeOver'} eq 'time') { + 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); + $pre_graph_text = + '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); + # + $post_graph_text = + &mt('Start time: [_1]', + &Apache::lonhtmlcommon::date_setter + ('Statistics','startdate_'.$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_text = 'No data for [_5] to [_6]'; + } + my $foil_choice_data = + &classify_response_data($response_data,$correct, + $restriction_function); + # &Apache::lonstathelpers::log_hash_ref($foil_choice_data); my $answers; if (ref($correct)) { my %tmp; @@ -485,36 +818,84 @@ sub RR_tries_analysis { my $concept_plot = ''; if (scalar(@$concepts) > 1) { $concept_plot = &RR_concept_plot($concepts,$foil_choice_data, - '% choosing'); + 'Correct Concepts'); } # % Choosing plot my $choice_plot = &RR_create_percent_selected_plot - ($foils,$foil_choice_data,'Attempt '.$try); + ($concepts,$foils,$foil_choice_data,$correct_foil_title); # 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,''); + my ($stacked_plot,$count_by_foil); + if ($problem_analysis->{'answercomputed'} || $num_true > 1) { + ($stacked_plot,$count_by_foil) = + &RR_create_stacked_selection_plot($foils,$foil_choice_data, + $incorrect_foil_title, + \%true_foils); + } # if ($concept_plot ne '' || - $choice_plot ne '' || + $choice_plot ne '' || $stacked_plot ne '') { + my $correct = $foil_choice_data->{'_correct'}; + if (! defined($correct) || $correct eq '') { + $correct = 0; + } + my $incorrect = + $analysis_html.= ''.$/; $analysis_html.= ''. ''. ''; if ($stacked_plot ne '') { $analysis_html .= - ''. - ''; + ''. + ''; } else { $analysis_html .= (''x2); } $analysis_html.=''.$/; + if (defined($post_graph_text)) { + $analysis_html.= ''.$/; + } + } elsif ($no_data_text ne '') { + $analysis_html.=''.$/; } - } + } # end of loop for plots $analysis_html.='
'. + ''. + &mt($pre_graph_text, + $plot_num,$foil_choice_data->{'_count'}, + $correct, + $foil_choice_data->{'_count'}-$correct, + $foil_choice_data->{'_students'}, + @extra_data). + '
'.$concept_plot.''.$choice_plot.''.$stacked_plot.''.&build_foil_key($foils,$count_by_foil).''.$stacked_plot.''.&build_foil_key($foils,$count_by_foil).'
'. + $post_graph_text.'
'. + &mt($no_data_text, + $plot_num,$foil_choice_data->{'_count'}, + $correct, + $foil_choice_data->{'_count'}-$correct, + @extra_data); + if (defined($post_graph_text)) { + $analysis_html.='
'.$post_graph_text; + } + $analysis_html.='
'; $r->print($analysis_html); } +sub ensure_start_end_times { + my ($start,$end,$first,$last,$plot_num) = @_; + if (! defined($start) || ! defined($end)) { + my $sec_in_day = 86400; + my ($sday,$smon,$syear) = + (localtime($last - $sec_in_day*($plot_num-1)))[3..5]; + $start = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear); + $end = $start + $sec_in_day; + if ($plot_num == $ENV{'form.NumPlots'}) { + $start = $first; + } + } + return ($start,$end); +} sub RR_concept_plot { my ($concepts,$foil_data,$title) = @_; @@ -554,7 +935,6 @@ sub RR_concept_plot { $correct[$i] = sprintf('%0f',$correct[$i]/$total*100); } my $xlabel = 'concept'; - $title.= ' (N='.$total.')'; my $plot= &Apache::loncommon::DrawBarGraph($title, $xlabel, 'Percent Choosing', @@ -565,18 +945,21 @@ sub RR_concept_plot { return $plot; } - sub RR_create_percent_selected_plot { - my ($foils,$foil_data,$title) = @_; + my ($concepts,$foils,$foil_data,$title) = @_; # - my %foil_selections; - my %true; + if ($foil_data->{'_count'} == 0) { return ''; }; + my %correct_selections; + my %incorrect_selections; foreach my $foil (@$foils) { - # foil_data has format $foil_data->{true_foil}->{selected foil} + # foil_data has format $foil_data->{true_foil}->{selected foil}=count next if (! exists($foil_data->{$foil})); - $true{$foil}++; while (my ($f,$count)= each(%{$foil_data->{$foil}})) { - $foil_selections{$f}+=$count; + if ($f eq $foil) { + $correct_selections{$foil} += $count; + } else { + $incorrect_selections{$f} += $count; + } } } # @@ -585,59 +968,77 @@ sub RR_create_percent_selected_plot { my @correct; my @incorrect; # - my $total =0; + my $total = $foil_data->{'_count'}; 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}; + $correct[$i] = $correct_selections{$foil}; + $incorrect[$i] = $incorrect_selections{$foil}; } - if ($total == 0) { return ''; }; for (my $i=0;$i<=$#correct;$i++) { - $correct[$i] = sprintf('%0f',$correct[$i]/$total*100); + $correct[$i] = sprintf('%2f',$correct[$i]/$total*100); } for (my $i=0;$i<=$#incorrect;$i++) { - $incorrect[$i] = sprintf('%0f',$incorrect[$i]/$total*100); + $incorrect[$i] = sprintf('%2f',$incorrect[$i]/$total*100); } + # + # Put a blank in the data sets between concepts, if there are concepts + my @labels; + if (defined($concepts) && scalar(@$concepts) > 1) { + my @new_correct; + my @new_incorrect; + my $foil_count = 0; + foreach my $concept (@$concepts) { + foreach (@{$concept->{'foils'}}) { + push(@new_correct, $correct[$foil_count]); + push(@new_incorrect,$incorrect[$foil_count]); + push(@labels,++$foil_count); + } + push(@new_correct,''); + push(@new_incorrect,''); + push(@labels,''); + } + @correct = @new_correct; + @incorrect = @new_incorrect; + } else { + @labels = (1 .. scalar(@correct)); + } + # my $xlabel = 'foil chosen'; - $title.= ' (N='.$total.')'; my $plot= &Apache::loncommon::DrawBarGraph($title, $xlabel, 'Percent Choosing', 100, ['#33ff00','#ff3300'], - undef, + \@labels, \@correct, \@incorrect); return $plot; } - sub RR_create_stacked_selection_plot { - my ($foils,$foil_data,$title)=@_; + my ($foils,$foil_data,$title,$true_foils)=@_; # - my @correct_choice; # the green row - my @dataset; # array of array refs - multicolor rows. - my %filled; + my @dataset; # array of array refs - multicolor rows $datasets[row]->[col] my @labels; - my $count=-1; - my %column; + my $count; + my %column; # maps foil name to column in @datasets for (my $i=0;$i[$i]; + if (defined($true_foils) && scalar(keys(%$true_foils)) > 0 ) { + next if (! $true_foils->{$foil} ); + push(@labels,$i+1); + } else { + next if (! exists($foil_data->{$foil})); + push(@labels,$i+1); + } next if (! exists($foil_data->{$foils->[$i]})); - my $correct_foil = $foils->[$i]; - push(@labels,$i+1); - $column{$correct_foil}= ++$count; + $column{$foil}= $count++; for (my $j=0;$j{$correct_foil}->{$foils->[$j]}; + $value += $foil_data->{$foil}->{$foils->[$j]}; } - $dataset[$j]->[$column{$correct_foil}]=$value; + $dataset[$j]->[$column{$foil}]=$value; } } # @@ -655,7 +1056,7 @@ sub RR_create_stacked_selection_plot { $dataset[$j]->[$bar] = sprintf('%2f',$dataset[$j]->[$bar]/$bar_total * 100); } - $count_per_foil{$foil}=' (N='.$bar_total.')'; + $count_per_foil{$foil}=' ( '.$bar_total.' )'; $grand_total += $bar_total; } if ($grand_total == 0) { @@ -666,7 +1067,6 @@ sub RR_create_stacked_selection_plot { 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); @@ -674,11 +1074,21 @@ sub RR_create_stacked_selection_plot { } +######################################################### +######################################################### +## +## 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') { @@ -688,199 +1098,22 @@ sub RR_classify_response_data { } $subm{'submission'} =~ s/=\d+\s*$//; 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; - } - # 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,$problem_data) = @_; - return '

No!

'; -} - -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($problem_data); - if ((! defined($Concepts)) || (@$Concepts < 2)) { - $table = '

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

'.$table; - } - $analysis_html .= $table; - my @TryData = &RR_tries_data_analysis($r,$PerformanceData); - $analysis_html .= &RR_tries_Foil_Analysis($mintries,$maxtries,$Foils, - \@TryData,$problem_data); - return $analysis_html; -} - -sub RR_tries_data_analysis { - my ($r,$Attempt_data) = @_; - my @TryData; - foreach my $attempt (@$Attempt_data) { - my %Attempt = &hashify_attempt($attempt); - my ($answer,undef) = split('=',$Attempt{'submission'}); - $TryData[$Attempt{'tries'}]->{$answer}++; - } - return @TryData; -} - -sub RR_time_Analysis { - my ($r,$PerformanceData,$problem_data) = @_; - my $html; - return $html; -} - -sub RR_tries_Foil_Analysis { - my ($min,$max,$Foils,$TryData,$problem_data) = @_; - my $html; - # - # Compute the data neccessary to make the plots - for (my $try=$min;$try<=$max;$try++) { - my @PlotData_Correct; - my @PlotData_Incorrect; - next if ($try > scalar(@{$TryData})); - next if (! defined($TryData->[$try])); - my %DataSet = %{$TryData->[$try]}; - my $total = 0; - foreach my $foilid (@$Foils) { - $total += $DataSet{$foilid}; - } - foreach my $foilid (@$Foils) { - if ($total == 0) { - push (@PlotData_Correct,0); - push (@PlotData_Incorrect,0); - } else { - if ($problem_data->{'_Foils'}->{$foilid}->{'value'} eq 'true') { - push (@PlotData_Correct, - int(100*$DataSet{$foilid}/$total)); - push (@PlotData_Incorrect,0); - } else { - push (@PlotData_Correct,0); - push (@PlotData_Incorrect, - int(100*$DataSet{$foilid}/$total)); - } + $students{$subm{'student'}}++; + $submission_data{'_count'}++; + if (&submission_is_correct($subm{'award'})) { + $submission_data{'_correct'}++; } - } - my $title='Attempt '.$try.' (N='.$total.')'; - my $xlabel = 'Foil Chosen'; - $html.= &Apache::loncommon::DrawBarGraph($title, - $xlabel, - 'Percent Choosing', - 100, - ['#33ff00','#ff3300'], - undef, - \@PlotData_Correct, - \@PlotData_Incorrect); - } - return $html; -} - -sub RR_tries_Concept_Analysis { - my ($min,$max,$Concepts,$ResponseData,$problem_data) = @_; - my $html; - return $html; -} - -sub RR_time_Foil_Analysis { - my ($min,$max,$Foils,$ResponseData,$problem_data) = @_; - my $html; - return $html; -} - -sub RR_time_Concept_Analysis { - my ($min,$max,$Concepts,$ResponseData,$problem_data) = @_; - my $html; - return $html; -} - - -sub get_Radio_problem_data { - my ($url) = @_; - my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze')); - (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2); - my %Answer = &Apache::lonnet::str2hash($Answ); - my %Partdata; - foreach my $part (@{$Answer{'parts'}}) { - while (my($key,$value) = each(%Answer)) { -# if (ref($value) eq 'ARRAY') { -# &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value)); -# } else { -# &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value); -# } - next if ($key !~ /^$part/); - $key =~ s/^$part\.//; - if ($key eq 'foils') { - $Partdata{$part}->{'_Foils'}=$value; - } elsif ($key eq 'options') { - $Partdata{$part}->{'_Options'}=$value; - } elsif ($key eq 'shown') { - $Partdata{$part}->{'_Shown'}=$value; - } elsif ($key =~ /^foil.value.(.*)$/) { - $Partdata{$part}->{$1}->{'value'}=$value; - } elsif ($key =~ /^foil.text.(.*)$/) { - $Partdata{$part}->{$1}->{'text'}=$value; + + if($max<++$submission_data{$subm{'correct'}}->{$subm{'submission'}}) { + $max=$submission_data{$subm{'correct'}}->{$subm{'submission'}}; } } } - return %Partdata; + $submission_data{'_max'} = $max; + $submission_data{'_students'}=scalar(keys(%students)); + return \%submission_data; } -=cut ######################################################### ######################################################### @@ -1030,7 +1263,7 @@ 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 @@ -1068,7 +1301,7 @@ 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}); # # @@ -1080,7 +1313,7 @@ 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}); $analysis_html.= ''. ''. @@ -1200,7 +1433,7 @@ sub OR_time_analysis { &OR_time_process_data($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 = ''; @@ -1274,7 +1507,8 @@ 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; } @@ -1285,7 +1519,7 @@ sub OR_Foil_Time_Analysis { 100, $plotcolors, undef, - @plotdata); + @plotdata,{xskip=>1}); return ($correct_plot,$incorrect_plot); } @@ -1316,7 +1550,7 @@ sub OR_Concept_Time_Analysis { 100, $plotcolors, undef, - \@plotdata); + \@plotdata,{xskip=>1}); } sub OR_time_process_data { @@ -1334,7 +1568,6 @@ sub OR_time_process_data { if ($end_index == scalar(@$performance_data)-1) { $end_index++; } - &Apache::lonnet::logthis(' '.$begin_index.':'.$end_index); my $count; for (my $i=$begin_index;$i<$end_index;$i++) { my $attempt = $performance_data->[$i]; @@ -1354,7 +1587,6 @@ sub OR_time_process_data { } } } - &Apache::lonnet::logthis('count = '.$count); return (\%processed_time_data,$correct,$data_count, scalar(keys(%distinct_students))); } @@ -1366,6 +1598,33 @@ sub OR_time_process_data { ## ######################################################### ######################################################### +sub build_student_data_worksheet { + my ($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 $worksheet; +} + sub OR_excel_sheet { my ($r,$resource,$performance_data,$ORdata) = @_; my $response = ''; @@ -1847,7 +2106,7 @@ sub Process_OR_Row { my $time = $row->[&Apache::loncoursedata::RD_timestamp()]; # my $tries = $row->[&Apache::loncoursedata::RD_tries()]; return undef if ($award eq 'MISSING_ANSWER'); - if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { + if (&submission_is_correct($award)) { $RowData{'_correct'} = 1; } $RowData{'_total'} = 1; @@ -1868,6 +2127,15 @@ sub Process_OR_Row { return %RowData; } +sub submission_is_correct { + my ($award) = @_; + if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { + return 1; + } else { + return 0; + } +} + 1; __END__