--- loncom/interface/statistics/lonproblemanalysis.pm 2003/10/17 22:05:45 1.42 +++ loncom/interface/statistics/lonproblemanalysis.pm 2020/11/12 00:15:27 1.142.2.5 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.42 2003/10/17 22:05:45 matthew Exp $ +# $Id: lonproblemanalysis.pm,v 1.142.2.5 2020/11/12 00:15:27 raeburn Exp $ # # Copyright Michigan State University Board of Trustees # @@ -24,450 +24,1461 @@ # # http://www.lon-capa.org/ # - package Apache::lonproblemanalysis; use strict; -use Apache::lonnet(); +use Apache::lonnet; use Apache::loncommon(); use Apache::lonhtmlcommon(); use Apache::loncoursedata(); use Apache::lonstatistics; use Apache::lonlocal; +use Apache::lonstathelpers(); +use Apache::lonstudentsubmissions(); use HTML::Entities(); use Time::Local(); +use capa; +use lib '/home/httpd/lib/perl/'; +use LONCAPA; + my $plotcolors = ['#33ff00', '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933', '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66', ]; +my @SubmitButtons = ({ name => 'PrevProblemAnalysis', + text => 'Previous Problem' }, + { name => 'ProblemAnalysis', + text => 'Analyze Problem Again' }, + { name => 'NextProblemAnalysis', + text => 'Next Problem' }, + { name => 'break'}, + { name => 'SelectAnother', + text => 'Choose a different Problem' }); + sub BuildProblemAnalysisPage { my ($r,$c)=@_; - $r->print('

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

'); + # + my %Saveable_Parameters = ('Status' => 'scalar', + 'Section' => 'array', + 'Groups' => 'array', + 'NumPlots' => 'scalar', + 'AnalyzeOver' => 'scalar', + ); + &Apache::loncommon::store_course_settings('problem_analysis', + \%Saveable_Parameters); + &Apache::loncommon::restore_course_settings('problem_analysis', + \%Saveable_Parameters); + # + &Apache::lonstatistics::PrepareClasslist(); + # + $r->print(&Apache::lonhtmlcommon::breadcrumbs('Detailed Problem Analysis')); + $r->print(&CreateInterface()); # my @Students = @Apache::lonstatistics::Students; # - if (exists($ENV{'form.ClearCache'}) || - exists($ENV{'form.updatecaches'}) || - (exists($ENV{'form.firstanalysis'}) && - $ENV{'form.firstanalysis'} ne 'no')) { - &Apache::lonstatistics::Gather_Full_Student_Data($r); - } - if (! exists($ENV{'form.firstanalysis'})) { - $r->print(''); - } else { - $r->print(''); + if (@Students < 1 && exists($env{'form.firstrun'})) { + $r->print('
' + .&mt('There are no students in the sections/groups selected.') + .'
' + ); } + # + my @CacheButtonHTML = + &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status'); $r->rflush(); - if (exists($ENV{'form.problemchoice'}) && - ! exists($ENV{'form.SelectAnother'})) { - $r->print(''); - $r->print(' 'x5); - $r->print(''); - $r->print(' 'x5); - $r->print(''); - $r->print(' 'x5); - $r->print(''); - $r->print(''); - $r->print(' 'x5); + # + my $problem_types = &analyzable_types(); + if (exists($env{'form.problemchoice'}) && + ! exists($env{'form.SelectAnother'})) { + foreach my $button (@SubmitButtons) { + if ($button->{'name'} eq 'break') { + $r->print("
\n"); + } else { + $r->print(''); + $r->print(' 'x5); + } + } + foreach my $html (@CacheButtonHTML) { + $r->print($html.(' 'x5)); + } + # + + # This is commented out pending actual implementation of + # CSV and Excel output. + #$r->print(&Apache::lonstathelpers::submission_report_form + # ('problem_analysis')); # $r->print('
'); + $r->rflush(); # - my ($symb,$part,$resid) = &get_problem_symb( - &Apache::lonnet::unescape($ENV{'form.problemchoice'}) - ); - # - my $resource = &get_resource_from_symb($symb); - if (defined($resource)) { - $r->print('

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

'); - my %Data = &get_problem_data($resource->{'src'}); - my $ORdata = $Data{$part.'.'.$resid}; - ## - ## Render the problem - my $base; - ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|); - $base = "http://".$ENV{'SERVER_NAME'}.$base; - my $rendered_problem = - &Apache::lonnet::ssi_body($resource->{'src'}); - $rendered_problem =~ s/<\s*form\s*/)|<\/nop>|g; - $r->print('
'. - ''. - $rendered_problem. - '
'); - ## - ## Analyze the problem - my $PerformanceData = - &Apache::loncoursedata::get_optionresponse_data - (\@Students,$symb,$resid); - if (defined($PerformanceData) && - ref($PerformanceData) eq 'ARRAY') { - if ($ENV{'form.AnalyzeOver'} eq 'Tries') { - my $analysis_html = &tries_analysis($PerformanceData, - $ORdata); - $r->print($analysis_html); - } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { - my $analysis_html = &time_analysis($PerformanceData, - $ORdata); - $r->print($analysis_html); - } else { - $r->print('

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

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

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

'); - } - } else { + # Determine which problem we are to analyze + my ($navmap,$current_problem) = &get_current_problem(); # need to retrieve $navmap + # to support $resource->* calls + # for src and compTitle (below) + # + # Store the current problem choice and send it out in the form + $env{'form.problemchoice'} = + &Apache::lonstathelpers::make_target_id($current_problem); + $r->print(''); + # + if (! defined($current_problem->{'resource'})) { $r->print('resource is undefined'); + } else { + my $resource = $current_problem->{'resource'}; + $r->print('

'.$resource->compTitle.'

'); + $r->print('

'.$resource->src.'

'); + $r->print('

'.&Apache::lonstatistics::section_and_enrollment_description().'

'); + if ($env{'form.show_prob'} eq 'true') { + $r->print('
' + .&Apache::lonstathelpers::render_resource($resource) + .'
' + ); + } + $r->rflush(); + if (@Students) { + my %Data = &Apache::lonstathelpers::get_problem_data + ($resource->src); + my $problem_data = $Data{$current_problem->{'part'}. + '.'. + $current_problem->{'respid'}}; + if ($current_problem->{'resptype'} eq 'option') { + &OptionResponseAnalysis($r,$current_problem, + $problem_data, + \@Students); + } elsif ($current_problem->{'resptype'} eq 'radiobutton') { + &radio_response_analysis($r,$current_problem, + $problem_data, + \@Students); + } elsif ($current_problem->{'resptype'} eq 'numerical') { + &numerical_response_analysis($r,$current_problem, + $problem_data,\@Students); + } else { + $r->print('
' + .&mt('Analysis of [_1] is not supported.' + ,$current_problem->{'resptype'}) + .'
' + ); + } + } } $r->print('
'); } else { - $r->print(''); + my $submit_button = ''; + $r->print($submit_button); $r->print(' 'x5); $r->print('

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

'); - $r->print(&OptionResponseProblemSelector()); + $r->print(&Apache::lonstathelpers::problem_selector($problem_types, + $submit_button)); } } +sub analyzable_types { + return '(option|radiobutton|numerical)'; +} + +sub get_current_problem { + my ($problem_types) = @_; + my $current_problem = &Apache::lonstathelpers::get_target_from_id + ($env{'form.problemchoice'}); + my ($navmap,$prev,$curr,$next) = + &Apache::lonstathelpers::get_prev_curr_next($current_problem, + $problem_types, + 'response'); + if (exists($env{'form.PrevProblemAnalysis'}) && ($prev ne '')) { + $current_problem = $prev; + } elsif (exists($env{'form.NextProblemAnalysis'}) && ($next ne '')) { + $current_problem = $next; + } else { + $current_problem = $curr; + } + return ($navmap,$current_problem); +} + ######################################################### ######################################################### ## -## Misc interface routines use by analysis code +## Numerical Response Routines ## ######################################################### ######################################################### -sub build_foil_index { - my ($ORdata) = @_; - return if (! exists($ORdata->{'Foils'})); - my %Foildata = %{$ORdata->{'Foils'}}; - my @Foils = sort(keys(%Foildata)); - my %Concepts; - foreach my $foilid (@Foils) { - push(@{$Concepts{$Foildata{$foilid}->{'Concept'}}}, - $foilid); +sub numerical_response_analysis { + my ($r,$problem,$problem_analysis,$students) = @_; + my $c = $r->connection(); + # + if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) { + $r->print('Bad request'); } - undef(@Foils); - # Having gathered the concept information in a hash, we now translate it - # into an array because we need to be consistent about order. - # Also put the foils in order, too. - my $sortfunction = sub { - my %Numbers = (one => 1, - two => 2, - three => 3, - four => 4, - five => 5, - six => 6, - seven => 7, - eight => 8, - nine => 9, - ten => 10,); - my $a1 = $a; - my $b1 = $b; - if (exists($Numbers{lc($a)})) { - $a1 = $Numbers{lc($a)}; + # + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + # Gather student data + my $response_data = &Apache::loncoursedata::get_response_data + ([&Apache::lonstatistics::get_selected_sections()], + [&Apache::lonstatistics::get_selected_groups()], + $Apache::lonstatistics::enrollment_status, + $resource->symb,$respid); + # + $problem_analysis->{'answercomputed'} = 1; + if ($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 '') { + $analysis_html .= + ''; } - if (exists($Numbers{lc($b)})) { - $b1 = $Numbers{lc($b)}; + } + $analysis_html.='
'. + &mt($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); + # + return; +} + +sub numerical_plot_percent { + my ($r,$responses,$stats) = @_; + # + 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; + } + } + $percent_spread = $highest_percent - $lowest_percent; + 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 = $_; + if ( ($percent_spread/$bin_size) < $max_bins ) { + 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 $scaled_value = + ($ans) ? 100*($submission-$ans)/abs($ans) + : 0; + if ($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; } - $a1 cmp $b1; - }; - my @Concepts; - foreach my $concept (sort $sortfunction (keys(%Concepts))) { - push(@Concepts,{ name => $concept, - foils => [@{$Concepts{$concept}}]}); - push(@Foils,(@{$Concepts{$concept}})); } # - # Build up the table of row labels. - my $table = ''."\n"; - if (@Concepts > 1) { - $table .= ''. - ''. - ''. - ''. - ''. - ''. - ''. - "\n"; + 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 %lt = &Apache::lonlocal::texthash( + 'title' => 'Percent Difference', + 'xlabel' => 'Percent Difference from Correct', + 'ylabel' => 'Percent of Answers'); + my @labels = (1..scalar(@bins)-1); + my $graph = &Apache::loncommon::DrawBarGraph + ($lt{'title'},$lt{'xlabel'},$lt{'ylabel'}, + $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) { + $high_bin+=1; + $low_bin-=1; + } + if (!$min_bin_size || + ($high_bin -$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 @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 %lt = &Apache::lonlocal::texthash( + 'title' => 'Difference between submission and correct', + 'xlabel' => 'Difference from Correct', + 'ylabel' => 'Percent of Answers'); + my @labels = (1..scalar(@bins)-1); + my $graph = &Apache::loncommon::DrawBarGraph + ($lt{'title'},$lt{'xlabel'},$lt{'ylabel'}, + $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; + my $high_percent; + if (defined($subm{'correct'}) && $subm{'correct'} != 0) { + $low_percent = 100 * abs($abs_low / $subm{'correct'}); + $high_percent = 100 * abs($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{'correct_count'} |= 0; + $stats{'incorrect_count'} |= 0; + $stats{'students'}=scalar(keys(%students)); + return (\%submission_data,\%stats); +} + +sub numerical_submission_is_correct { + my ($award) = @_; + if ($award =~ /^(APPROX_ANS|EXACT_ANS)$/) { + return 1; } else { - $table .= ''. - ''. - ''. - ''. - ''. - "\n"; - } - my $conceptindex = 1; - my $foilindex = 1; - foreach my $concept (@Concepts) { - my @FoilsInConcept = @{$concept->{'foils'}}; - my $firstfoil = shift(@FoilsInConcept); - if (@Concepts > 1) { - $table .= ''. - ''. - ''. - ''. - ''. - ''. - ''. - "\n"; - } else { - $table .= ''. - ''. - ''. - ''. - ''. - "\n"; + return 0; + } +} + +sub numerical_submission_is_incorrect { + my ($award) = @_; + if ($award =~ /^(INCORRECT)$/) { + return 1; + } else { + return 0; + } +} + +sub numerical_bin_table { + my ($bins,$labels,$incorrect,$correct,$count)=@_; + my $table = + '
'.&mt('Concept Number').''.&mt('Concept').''.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.$conceptindex.''.$concept->{'name'}.''.$foilindex++.''.$Foildata{$firstfoil}->{'name'}.''.$Foildata{$firstfoil}->{'text'}.''.$Foildata{$firstfoil}->{'value'}.'
'.$foilindex++.''.$Foildata{$firstfoil}->{'name'}.''.$Foildata{$firstfoil}->{'text'}.''.$Foildata{$firstfoil}->{'value'}.'
'. + ''. + ''. + ''. + ''. + ''.$/; + 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,scalar(@$students)); + # + # Read in the cache (if it exists) before we start timing things. + &Apache::lonstathelpers::ensure_proper_cache($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; + # pick one of the possible answers + my $which = 'INTERNAL'; + if (!exists($analysis->{$key}{$which})) { + $which = (sort(keys(%{ $analysis->{$key} })))[0]; + } + foreach my $item ('answer','unit','ans_high','ans_low') { + if (ref($analysis->{$key.'.'.$item}) eq 'ARRAY') { + $correct->{$sname.':'.$sdom}->{$item} = + $analysis->{$key.'.'.$item}[0]; + } else { + $correct->{$sname.':'.$sdom}->{$item} = + $analysis->{$key.'.'.$item}{$which}[0][0]; + } + } + $answers{$correct->{$sname.':'.$sdom}{'answer'}}++; + &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, + 'last student'); + } + &Apache::lonstathelpers::write_analysis_cache(); + &Apache::lonhtmlcommon::Close_PrgWin($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; + 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; } - foreach my $foilid (@FoilsInConcept) { - if (@Concepts > 1) { - $table .= ''. - ''. - ''. - ''.$foilindex.''. - ''.$Foildata{$foilid}->{'name'}.''. - ''.$Foildata{$foilid}->{'text'}.''. - ''.$Foildata{$foilid}->{'value'}.''. - "\n"; - } else { - $table .= ''. - ''.$foilindex.''. - ''.$Foildata{$foilid}->{'name'}.''. - ''.$Foildata{$foilid}->{'text'}.''. - ''.$Foildata{$foilid}->{'value'}.''. - "\n"; - } - } continue { - $foilindex++; + if (! defined($max_x) || $answer > $max_x) { + $max_x = $answer; } - } continue { - $conceptindex++; } - $table .= "\n"; # - # Build option index with color stuff - return ($table,\@Foils,\@Concepts); + 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); + $ticscale = 1 if ($ticscale < 1); + } + # + # Create the plot + my $plot = + qq{}; + while (my ($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_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'); + $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1); + } else { + $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1); + } + $plot .= ''; + my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot); + my $result = ''. + ''. + ''. + ''. + ''. + ''. + ''. + '
'. + ''.&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_x.''.$plotresult.''.$max_x.'
'; + return $result; } -sub build_option_index { - my ($ORdata)= @_; - my $table = "\n"; - my $optionindex = 0; - my @Rows; - foreach my $option (&mt('correct option chosen'),@{$ORdata->{'Options'}}) { - push (@Rows, - ''. - ''. - ''. - "\n"); +## +## Helper subroutines for . +## These should probably go somewhere more suitable soon. +sub line { + my ($x1,$y1,$x2,$y2,$color,$thickness) = @_; + return qq{}; +} + +sub text { + my ($x,$y,$color,$text,$font,$direction) = @_; + if (! defined($font) || $font !~ /^(tiny|small|medium|large|giant)$/) { + $font = 'medium'; } - shift(@Rows); # Throw away 'correct option chosen' color - $table .= join('',reverse(@Rows)); - $table .= "
'. - (' 'x4).''.$option.'
\n"; + if (! defined($direction) || $direction ne 'vertical') { + $direction = ''; + } + return qq{$text}; +} + +sub rectangle { + my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_; + return qq{}; +} + +sub arc { + my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_; + return qq{}; +} + +sub circle { + my ($x,$y,$radius,$color,$thickness,$filled)=@_; + return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled); } ######################################################### ######################################################### ## -## Tries Analysis +## Radio Response Routines ## ######################################################### ######################################################### -sub tries_analysis { - my ($PerformanceData,$ORdata) = @_; - my $mintries = 1; - my $maxtries = $ENV{'form.NumPlots'}; - my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); - if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { - $table = '

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

'.$table; - $ENV{'form.AnalyzeAs'} = 'Foils'; +sub radio_response_analysis { + my ($r,$problem,$problem_analysis,$students) = @_; + # + if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) { + $r->print('Bad request'); } - my %ResponseData = &analyze_option_data_by_tries($PerformanceData, - $mintries,$maxtries); - my $analysis = ''; - if ($ENV{'form.AnalyzeAs'} eq 'Foils') { - $analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils, - \%ResponseData,$ORdata); + # + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + # + 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 + ([&Apache::lonstatistics::get_selected_sections()], + [&Apache::lonstatistics::get_selected_groups()], + $Apache::lonstatistics::enrollment_status, + $resource->symb,$respid); + 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'}.':'.$student->{'domain'}}= + &unescape($answer); + } } else { - $analysis = &Tries_Concept_Analysis($mintries,$maxtries, - $Concepts,\%ResponseData,$ORdata); + foreach my $foil (keys(%$foildata)) { + if ($foildata->{$foil}->{'value'} eq 'true') { + $correct = $foildata->{$foil}->{'name'}; + } + } } - $table .= $analysis; - return $table; + # + if (! defined($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 $plot_num = 1;$plot_num<=$env{'form.NumPlots'};$plot_num++) { + # classify data ->correct foil -> selected foil + 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)}; + $correct_foil_title = &mt('Attempt [_1]',$plot_num); + $incorrect_foil_title = &mt('Attempt [_1]',$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; + foreach my $foil (values(%$correct)) { + $tmp{$foil}++; + } + $answers = [keys(%tmp)]; + } else { + $answers = [$correct]; + } + # Concept Plot + my $concept_plot = ''; + if (scalar(@$concepts) > 1) { + my $title = &mt('Correct Concepts'); + $concept_plot = &RR_concept_plot($concepts,$foil_choice_data, + $title); + } + # % Choosing plot + my $choice_plot = &RR_create_percent_selected_plot + ($concepts,$foils,$foil_choice_data,$correct_foil_title); + # for each correct foil, how did they mark it? (stacked bar graph) + my ($stacked_plot,$count_by_foil); + if ($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 '' || + $stacked_plot ne '') { + my $correct = $foil_choice_data->{'_correct'}; + $correct |= 0; + my $incorrect = $foil_choice_data->{'_count'}-$correct; + $analysis_html.= ''.$/; + $analysis_html.= + ''. + ''. + ''; + if ($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, + $incorrect, + $foil_choice_data->{'_students'}, + @extra_data). + '
'.$concept_plot.''.$choice_plot.''.$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 Tries_Foil_Analysis { - my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_; - my %ResponseData = %$respdat; - # - # Compute the data neccessary to make the plots - my @PlotData; - foreach my $foilid (@$Foils) { - for (my $i=$mintries;$i<=$maxtries;$i++) { - if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { - push(@{$PlotData[$i]->{'_correct'}},0); - } else { - push(@{$PlotData[$i]->{'_correct'}}, - 100*$ResponseData{$foilid}->[$i]->{'_correct'}/ - $ResponseData{$foilid}->[$i]->{'_total'}); - } - foreach my $option (@{$ORdata->{'Options'}}) { - push(@{$PlotData[$i]->{'_total'}}, - $ResponseData{$foilid}->[$i]->{'_total'}); - if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) { - push (@{$PlotData[$i]->{$option}},0); +sub ensure_start_end_times { + my ($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) = @_; + # + 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}->{$choice}; } else { - if ($ResponseData{$foilid}->[$i]->{'_total'} == - $ResponseData{$foilid}->[$i]->{'_correct'}) { - push(@{$PlotData[$i]->{$option}},0); - } else { - push (@{$PlotData[$i]->{$option}}, - 100 * $ResponseData{$foilid}->[$i]->{$option} / - ($ResponseData{$foilid}->[$i]->{'_total'} - - $ResponseData{$foilid}->[$i]->{'_correct'})); - } + $incorrect_by_concept{$concept->{'name'}} += + $foil_data->{$foil}->{$choice}; } } } } # - # Build a table for the plots - my $analysis_html = "\n"; - my $foilkey = &build_option_index($ORdata); - for (my $i=$mintries;$i<=$maxtries;$i++) { - my $count = $ResponseData{'_total'}->[$i]; - if ($count == 0) { - $count = 'no submissions'; - } elsif ($count == 1) { - $count = '1 submission'; + # 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 = &mt('concept'); + my $ylabel = &mt('Percent Choosing'); + my $plot= &Apache::loncommon::DrawBarGraph($title, + $xlabel, + $ylabel, + 100, + ['#33ff00','#ff3300'], + undef, + \@correct); + return $plot; +} + +sub RR_create_percent_selected_plot { + my ($concepts,$foils,$foil_data,$title) = @_; + # + if ($foil_data->{'_count'} == 0) { return ''; }; + my %correct_selections; + my %incorrect_selections; + foreach my $foil (@$foils) { + # foil_data has format $foil_data->{true_foil}->{selected foil}=count + next if (! exists($foil_data->{$foil})); + while (my ($f,$count)= each(%{$foil_data->{$foil}})) { + if ($f eq $foil) { + $correct_selections{$foil} += $count; + } else { + $incorrect_selections{$f} += $count; + } + } + } + # + # need arrays for incorrect and correct because we want to use different + # colors for them + my @correct; + my @incorrect; + # + my $total = $foil_data->{'_count'}; + for (my $i=0;$i[$i]; + $correct[$i] = $correct_selections{$foil}; + $incorrect[$i] = $incorrect_selections{$foil}; + } + for (my $i=0;$i<=$#correct;$i++) { + $correct[$i] = sprintf('%2f',$correct[$i]/$total*100); + } + for (my $i=0;$i<=$#incorrect;$i++) { + $incorrect[$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 = &mt('foil chosen'); + my $ylabel = &mt('Percent Choosing'); + my $plot= &Apache::loncommon::DrawBarGraph($title, + $xlabel, + $ylabel, + 100, + ['#33ff00','#ff3300'], + \@labels, + \@correct, + \@incorrect); + return $plot; +} + +sub RR_create_stacked_selection_plot { + my ($foils,$foil_data,$title,$true_foils)=@_; + # + my @dataset; # array of array refs - multicolor rows $datasets[row]->[col] + my @labels; + 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 { - $count = $count.' submissions'; + next if (! exists($foil_data->{$foil})); + push(@labels,$i+1); } - my $title = 'Attempt '.$i.', '.$count; - my @Datasets; - foreach my $option ('_correct',@{$ORdata->{'Options'}}) { - next if (! exists($PlotData[$i]->{$option})); - push(@Datasets,$PlotData[$i]->{$option}); - } - my $correctgraph = &Apache::loncommon::DrawGraph - ($title,'Foil Number','Percent Correct', - 100,$plotcolors,$Datasets[0]); - $analysis_html.= ''; - ## - ## - for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) { - $Datasets[0]->[$i]=0; + next if (! exists($foil_data->{$foils->[$i]})); + $column{$foil}= $count++; + for (my $j=0;$j{$foil}->{$foils->[$j]}; + } + $dataset[$j]->[$column{$foil}]=$value; } - $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i]; - if ($count == 0) { - $count = 'no submissions'; - } elsif ($count == 1) { - $count = '1 submission'; - } else { - $count = $count.' submissions'; - } - $title = 'Attempt '.$i.', '.$count; - my $incorrectgraph = &Apache::loncommon::DrawGraph - ($title,'Foil Number','% Option Chosen Incorrectly', - 100,$plotcolors,@Datasets); - $analysis_html.= ''; - $analysis_html.= '\n"; } - $analysis_html .= "
'.$correctgraph.''.$incorrectgraph.''.$foilkey."
\n"; - return $analysis_html; + # + 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}=' ( '.$bar_total.' )'; + $grand_total += $bar_total; + } + if ($grand_total == 0) { + return ('',undef); + } + my @empty_row = (); + foreach (@{$dataset[0]}) { + push(@empty_row,0); + } + # + my $xlabel = &mt('Correct Foil'); + my $ylabel = &mt('foils chosen Incorrectly'); + my $graph = &Apache::loncommon::DrawBarGraph + ($title,$xlabel,$ylabel, + 100,$plotcolors,\@labels,\@empty_row,@dataset); + return ($graph,\%count_per_foil); } -sub Tries_Concept_Analysis { - my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_; - my %ResponseData = %$respdat; - my $analysis_html = "\n"; - # - # Compute the data neccessary to make the plots - my @PlotData; - # Concept analysis - # - # Note: we do not bother with characterizing the students incorrect - # answers at the concept level because an incorrect answer for one foil - # may be a correct answer for another foil. - my %ConceptData; - foreach my $concept (@{$Concepts}) { - for (my $i=$mintries;$i<=$maxtries;$i++) { - # - # Gather the per-attempt data - my $cdata = $ConceptData{$concept}->[$i]; - foreach my $foilid (@{$concept->{'foils'}}) { - $cdata->{'_correct'} += - $ResponseData{$foilid}->[$i]->{'_correct'}; - $cdata->{'_total'} += - $ResponseData{$foilid}->[$i]->{'_total'}; - } - push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'}); - if ($cdata->{'_total'} == 0) { - push (@{$PlotData[$i]->{'_correct'}},0); - } else { - push (@{$PlotData[$i]->{'_correct'}}, - 100*$cdata->{'_correct'}/$cdata->{'_total'}); - } + +######################################################### +######################################################### +## +## Misc routines +## +######################################################### +######################################################### + +# if $correct is a hash ref, it is assumed to be indexed by student names. +# the values are assumed to be hash refs with a key of 'answer'. +sub classify_response_data { + my ($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') { + $subm{'correct'} = $correct->{$subm{'student'}}; + } else { + $subm{'correct'} = $correct; + } + $subm{'submission'} =~ s/=\d+\s*$//; + if (&$function(\%subm)) { + $students{$subm{'student'}}++; + $submission_data{'_count'}++; + if (&submission_is_correct($subm{'award'})) { + $submission_data{'_correct'}++; + } + + if($max<++$submission_data{$subm{'correct'}}->{$subm{'submission'}}) { + $max=$submission_data{$subm{'correct'}}->{$subm{'submission'}}; + } } } + $submission_data{'_max'} = $max; + $submission_data{'_students'}=scalar(keys(%students)); + return \%submission_data; +} + + +######################################################### +######################################################### +## +## Option Response Routines +## +######################################################### +######################################################### +sub OptionResponseAnalysis { + my ($r,$problem,$problem_data,$Students) = @_; + my ($resource,$respid) = ($problem->{'resource'}, + $problem->{'respid'}); + # Note: part data is not needed. + my $PerformanceData = &Apache::loncoursedata::get_response_data + ([&Apache::lonstatistics::get_selected_sections()], + [&Apache::lonstatistics::get_selected_groups()], + $Apache::lonstatistics::enrollment_status, + $resource->symb,$respid); + if (! defined($PerformanceData) || + ref($PerformanceData) ne 'ARRAY' ) { + $r->print('
' + .&mt('There is no student data for this problem.') + .'
' + ); + } else { + $r->rflush(); + if ($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 { + $r->print('
' + ); + } + } +} + +######################################################### +# +# Option Response: tries Analysis +# +######################################################### +sub OR_tries_analysis { + my ($r,$PerformanceData,$ORdata) = @_; + 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 = ''; + # + # 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++) { + # 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(@{$foil_plot[$try]->{'_correct'}}, + 100*$response_data{$foilid}->[$try]->{'_correct'}/ + $response_data{$foilid}->[$try]->{'_total'}); + } + foreach my $option (@{$ORdata->{'_Options'}}) { + push(@{$foil_plot[$try]->{'_total'}}, + $response_data{$foilid}->[$try]->{'_total'}); + if ($response_data{$foilid}->[$try]->{'_total'} == 0) { + push (@{$foil_plot[$try]->{$option}},0); + } else { + if ($response_data{$foilid}->[$try]->{'_total'} == + $response_data{$foilid}->[$try]->{'_correct'}) { + push(@{$foil_plot[$try]->{$option}},0); + } else { + push (@{$foil_plot[$try]->{$option}}, + 100 * + $response_data{$foilid}->[$try]->{$option} / + ($response_data{$foilid}->[$try]->{'_total'} + - + $response_data{$foilid}->[$try]->{'_correct'} + )); + } + } + } # End of foreach my $option + } + } # End of foreach my $foilid + } # End of concept loops + # # 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 $graphlink = &Apache::loncommon::DrawGraph - ($title,'Concept Number','Percent Correct', - 100,$plotcolors,$PlotData[$i]->{'_correct'}); - $analysis_html.= '
\n"; + my $analysis_html = "
'.$graphlink."
\n"; + my $optionkey = &build_option_index($ORdata); + my $num_concepts = 1; + if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); } + # + for (my $try=$mintries;$try<=$maxtries;$try++) { + if (! defined($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 %lt = &Apache::lonlocal::texthash( + 'title' => 'Correct Concepts', + 'xlabel' => 'Concept Number', + 'ylabel' => 'Percent Correct'); + $concept_graph = &Apache::loncommon::DrawBarGraph + ($lt{'title'},$lt{'xlabel'},$lt{'ylabel'}, + 100,$plotcolors,undef,\@concept_plot_data,{xskip=>1}); + } + # + # Create Foil Plots + my $data_count = $response_data{'_total'}->[$try]; + my $correct = $response_data{'_correct'}->[$try]; + $correct |= 0; + my @Datasets; + foreach my $option ('_correct',@{$ORdata->{'_Options'}}) { + next if (! exists($foil_plot[$try]->{$option})); + push(@Datasets,$foil_plot[$try]->{$option}); + } + # + # Put a blank in the data set between concepts + for (my $set =0;$set<=$#Datasets;$set++) { + my @Data = @{$Datasets[$set]}; + my $idx = 0; + foreach my $concept (@{$Concepts}) { + foreach my $foilid (@{$concept->{'foils'}}) { + $Datasets[$set]->[$idx++]=shift(@Data); + } + if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) { + $Datasets[$set]->[$idx++] = 0; + } + } + } + # + # Set up the labels needed for the bar graph + my @Labels; + my $idx = 1; + foreach my $concept (@{$Concepts}) { + foreach my $foilid (@{$concept->{'foils'}}) { + push(@Labels,$idx++); + } + push(@Labels,''); + } + # + my %lt = &Apache::lonlocal::texthash( + 'title' => 'Correct Statements', + 'xlabel' => 'Statement', + 'ylabel' => '% Answered Correct'); + my $correct_graph = &Apache::loncommon::DrawBarGraph + ($lt{'title'},$lt{'xlabel'},$lt{'ylabel'}, + 100,$plotcolors,\@Labels,$Datasets[0],{xskip=>1}); + + # + # + next if (! defined($Datasets[0])); + for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) { + $Datasets[0]->[$i]=0; + } + my $count = $response_data{'_total'}->[$try] - + $response_data{'_correct'}->[$try]; + %lt = &Apache::lonlocal::texthash( + 'title' => 'Incorrect Statements', + 'xlabel' => 'Statement', + 'ylabel' => '% Chosen Incorrectly'); + my $incorrect_graph = &Apache::loncommon::DrawBarGraph + ($lt{'title'},$lt{'xlabel'},$lt{'ylabel'}, + 100,$plotcolors,\@Labels,@Datasets,{xskip=>1}); + $analysis_html.= + ''.$/. + ''. + ''. + ''. + ''. + ''.$/; } $analysis_html .= "
' + .'
' + .&mt('None of the selected students attempted the problem more than [quant,_1,time].' + ,$try-1) + .'
' + .'
' + .'
' + .&mt('None of the selected students have attempted the problem.') + .'
' + .'
'. + ''. + &mt('Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect', + $try,$data_count,$correct,$data_count-$correct). + ''.'
'.$concept_graph.''.$correct_graph.''.$incorrect_graph.''.$optionkey.''. + '
\n"; - return $analysis_html; + $table .= $analysis_html; + return $table; } -sub analyze_option_data_by_tries { - my ($PerformanceData,$mintries,$maxtries) = @_; +sub OR_analyze_by_tries { + my ($r,$PerformanceData,$mintries,$maxtries) = @_; my %Trydata; $mintries = 1 if (! defined($mintries) || $mintries < 1); $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries); + my @students; foreach my $row (@$PerformanceData) { next if (! defined($row)); my $tries = &get_tries_from_row($row); - my %Row = &Process_Row($row); + my %Row = &Process_OR_Row($row); + next if (! %Row); + my $student_id = $row->[&Apache::loncoursedata::RD_student_id()]; + $students[$tries]->{$student_id}++; while (my ($foilid,$href) = each(%Row)) { if (! ref($href)) { $Trydata{$foilid}->[$tries] += $href; @@ -478,30 +1489,36 @@ sub analyze_option_data_by_tries { } } } + for (my $try=$mintries;$try<=$maxtries;$try++) { + $Trydata{'_studentcount'}->[$try] = scalar(keys(%{$students[$try]})); + } return %Trydata; } ######################################################### +# +# Option Response: Time Analysis +# ######################################################### -## -## Time Analysis -## -######################################################### -######################################################### -sub time_analysis { - my ($PerformanceData,$ORdata) = @_; +sub OR_time_analysis { + my ($performance_data,$ORdata) = @_; my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); - if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { - $table = '

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

'.$table; - $ENV{'form.AnalyzeAs'} = 'Foils'; - } - my $num_plots = $ENV{'form.NumPlots'}; - my $num_data = scalar(@$PerformanceData)-1; - my $percent = sprintf('%2f',100/$num_plots); + 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 instead.'). + '

'. + $table; + } + # + my $num_plots = $env{'form.NumPlots'}; + my $num_data = scalar(@$performance_data)-1; # + my $current_index; $table .= "\n"; for (my $i=0;$i<$num_plots;$i++) { ## @@ -511,16 +1528,20 @@ sub 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 ($sday,$smon,$syear); - (undef,undef,undef,$sday,$smon,$syear) = - localtime($last_sub_time - $sec_in_day*$i); + my $last_sub_time = &get_time_from_row($performance_data->[-1]); + my ($sday,$smon,$syear) = + (localtime($last_sub_time - $sec_in_day*$i))[3..5]; $starttime = &Time::Local::timelocal(0,0,0,$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 @@ -529,380 +1550,471 @@ sub time_analysis { my $begin_index; my $end_index; my $j; - while (++$j < scalar(@$PerformanceData)) { - last if (&get_time_from_row($PerformanceData->[$j]) > $starttime); + while (++$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; ## - my $interval = { - begin_index => $begin_index, - end_index => $end_index, - startdateform => $startdateform, - enddateform => $enddateform, - }; - if ($ENV{'form.AnalyzeAs'} eq 'Foils') { - $table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils, - $interval); - } else { - $table .= &Concept_Time_Analysis($PerformanceData,$ORdata, - $Concepts,$interval); - } + my ($processed_time_data,$correct,$data_count,$student_count) = + &OR_time_process_data($performance_data,$begin_index,$end_index); + $correct |= 0; + ## + $table .= ''.$/; + my $concept_correct_plot = ''; + if ($num_concepts > 1) { + $concept_correct_plot = + &OR_Concept_Time_Analysis($processed_time_data, + $correct,$data_count,$student_count, + $ORdata,$Concepts); + } + my ($foil_correct_plot,$foil_incorrect_plot) = + &OR_Foil_Time_Analysis($processed_time_data, + $correct,$data_count,$student_count, + $ORdata,$Foils,$Concepts); + $table .= ''. + ''. + ''. + ''. + ''.$/; + $table .= ''.$/; + $table.= ''.$/; } + $table .= '
'. + &mt('Data from [_1] to [_2]', + &Apache::lonlocal::locallocaltime($starttime), + &Apache::lonlocal::locallocaltime($endtime)). + '
'. + &mt('[quant,_1,submission,submissions,No submissions] from [quant,_2,student], [_3] correct, [_4] incorrect', + $data_count,$student_count,$correct,$data_count-$correct). + '
'.$concept_correct_plot.''.$foil_correct_plot.''.$foil_incorrect_plot.''.$foilkey.'
'. + &mt('Start time: [_1]',$startdateform).'
'. + &mt('End time: [_1]',$enddateform).'
 
'; # return $table; } -sub Foil_Time_Analysis { - my ($PerformanceData,$ORdata,$Foils,$interval) = @_; +sub OR_Foil_Time_Analysis { + my ($processed_time_data,$correct,$data_count,$student_count, + $ORdata,$Foils,$Concepts) = @_; + if ($data_count <= 0) { + return ('
' + .&mt('There is no data to plot.') + .'
' + ,'' + ); + } my $analysis_html; - my $foilkey = &build_option_index($ORdata); - my ($begin_index,$end_index) = ($interval->{'begin_index'}, - $interval->{'end_index'}); - my %TimeData; - # - # Compute the number getting the foils correct or incorrects - for (my $j=$begin_index;$j<=$end_index;$j++) { - my $row = $PerformanceData->[$j]; - next if (! defined($row)); - my %Row = &Process_Row($row); - while (my ($foilid,$href) = each(%Row)) { - if (! ref($href)) { - $TimeData{$foilid} += $href; - next; + my @plotdata; + my @labels; + foreach my $concept (@{$Concepts}) { + foreach my $foil (@{$concept->{'foils'}}) { + push(@labels,scalar(@labels)+1); + my $total = $processed_time_data->{$foil}->{'_total'}; + if ($total == 0) { + push(@{$plotdata[0]},0); + } else { + push(@{$plotdata[0]}, + 100 * $processed_time_data->{$foil}->{'_correct'} / $total); } - while (my ($option,$value) = each(%$href)) { - $TimeData{$foilid}->{$option}+=$value; + my $total_incorrect = $total - $processed_time_data->{$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 * $processed_time_data->{$foil}->{$option} / $total_incorrect); + } } } + # Put in a blank one + push(@labels,''); + push(@{$plotdata[0]},0); + for (my $i=0;$i{'_Options'}});$i++) { + push(@{$plotdata[$i+1]},0); + } } - my @Plotdata; - foreach my $foil (@$Foils) { - my $total = $TimeData{$foil}->{'_total'}; + # + # Create the plot + my %lt = &Apache::lonlocal::texthash( + 'title' => 'Correct Statements', + 'xlabel' => 'Statement Number', + 'ylabel' => 'Percent Correct'); + my $correct_plot = &Apache::loncommon::DrawBarGraph($lt{'title'}, + $lt{'xlabel'}, + $lt{'ylabel'}, + 100, + $plotcolors, + undef, + $plotdata[0], + {xskip=>1}); + for (my $j=0; $j< scalar(@{$plotdata[0]});$j++) { + $plotdata[0]->[$j]=0; + } + %lt = &Apache::lonlocal::texthash( + 'title' => 'Incorrect Statements', + 'xlabel' => 'Statement Number', + 'ylabel' => 'Incorrect Option Choice'); + my $incorrect_plot = + &Apache::loncommon::DrawBarGraph($lt{'title'}, + $lt{'xlabel'}, + $lt{'ylabel'}, + 100, + $plotcolors, + undef, + @plotdata,{xskip=>1}); + return ($correct_plot,$incorrect_plot); +} + +sub OR_Concept_Time_Analysis { + my ($processed_time_data,$correct,$data_count,$student_count, + $ORdata,$Concepts) = @_; + return '' if ($data_count == 0); + # + # Put the data in plottable form + my @plotdata; + foreach my $concept (@$Concepts) { + my ($total,$correct); + foreach my $foil (@{$concept->{'foils'}}) { + $total += $processed_time_data->{$foil}->{'_total'}; + $correct += $processed_time_data->{$foil}->{'_correct'}; + } if ($total == 0) { - push(@{$Plotdata[0]},0); + push(@plotdata,0); } else { - push(@{$Plotdata[0]}, - 100 * $TimeData{$foil}->{'_correct'} / $total); - } - my $total_incorrect = $total - $TimeData{$foil}->{'_correct'}; - my $optionidx = 1; - foreach my $option (@{$ORdata->{'Options'}}) { - if ($total_incorrect == 0) { - push(@{$Plotdata[$optionidx]},0); - } else { - push(@{$Plotdata[$optionidx]}, - 100 * $TimeData{$foil}->{$option} / $total_incorrect); - } - } continue { - $optionidx++; + push(@plotdata,100 * $correct / $total); } } # # Create the plot - my $count = $end_index-$begin_index; - my $title; - if ($count == 0) { - $title = 'no submissions'; - } elsif ($count == 1) { - $title = 'one submission'; - } else { - $title = $count.' submissions'; - } - my $correctplot = &Apache::loncommon::DrawGraph($title, - 'Foil Number', - 'Percent Correct', - 100, - $plotcolors, - $Plotdata[0]); - for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) { - $Plotdata[0]->[$j]=0; - } - $count = $end_index-$begin_index-$TimeData{'_correct'}; - if ($count == 0) { - $title = 'no submissions'; - } elsif ($count == 1) { - $title = 'one submission'; - } else { - $title = $count.' submissions'; - } - my $incorrectplot = &Apache::loncommon::DrawGraph($title, - 'Foil Number', - 'Incorrect Option Choice', - 100, - $plotcolors, - @Plotdata); - $analysis_html.=''. - ''.$correctplot.''. - ''.$incorrectplot.''. - ''.$foilkey.''."\n"; - $analysis_html.= ''.''. - 'Start Time:'. - '  '.$interval->{'startdateform'}.'
'. - 'End Time  : '. - ' '.$interval->{'enddateform'}.'
'. -# 'Plot Title  :'. -# (" "x3).$interval->{'titleform'}. - ''. - "\n"; - return $analysis_html; + my %lt = &Apache::lonlocal::texthash( + 'title' => 'Correct Concepts', + 'xlabel' => 'Concept Number', + 'ylabel' => 'Percent Correct'); + return &Apache::loncommon::DrawBarGraph($lt{'title'}, + $lt{'xlabel'}, + $lt{'ylabel'}, + 100, + $plotcolors, + undef, + \@plotdata,{xskip=>1}); } -sub Concept_Time_Analysis { - my ($PerformanceData,$ORdata,$Concepts,$interval) = @_; - my $analysis_html; - ## - ## Determine starttime, endtime, startindex, endindex - my ($begin_index,$end_index) = ($interval->{'begin_index'}, - $interval->{'end_index'}); - my %TimeData; - # - # Compute the number getting the foils correct or incorrects - for (my $j=$begin_index;$j<=$end_index;$j++) { - my $row = $PerformanceData->[$j]; - next if (! defined($row)); - my %Row = &Process_Row($row); - while (my ($foilid,$href) = each(%Row)) { +sub OR_time_process_data { + my ($performance_data,$begin_index,$end_index)=@_; + my %processed_time_data; + my %distinct_students; + my ($correct,$data_count); + if (($begin_index == $end_index) && + ($end_index != scalar(@$performance_data)-1)) { + return undef; + } + # Be sure we include the last one if we are asked for it. + # That we have to correct here (and not when $end_index is + # given a value) should probably be considered a bug. + if ($end_index == scalar(@$performance_data)-1) { + $end_index++; + } + my $count; + for (my $i=$begin_index;$i<$end_index;$i++) { + my $attempt = $performance_data->[$i]; + $count++; + next if (! defined($attempt)); + my %attempt = &Process_OR_Row($attempt); + $data_count++; + $correct += $attempt{'_correct'}; + $distinct_students{$attempt->[&Apache::loncoursedata::RD_student_id()]}++; + while (my ($foilid,$href) = each(%attempt)) { if (! ref($href)) { - $TimeData{$foilid} += $href; + $processed_time_data{$foilid} += $href; next; } while (my ($option,$value) = each(%$href)) { - $TimeData{$foilid}->{$option}+=$value; + $processed_time_data{$foilid}->{$option}+=$value; } } } - # - # Put the data in plottable form - my @Plotdata; - foreach my $concept (@$Concepts) { - my ($total,$correct); - foreach my $foil (@{$concept->{'foils'}}) { - $total += $TimeData{$foil}->{'_total'}; - $correct += $TimeData{$foil}->{'_correct'}; + return (\%processed_time_data,$correct,$data_count, + scalar(keys(%distinct_students))); +} + +sub build_foil_index { + my ($ORdata) = @_; + return if (! exists($ORdata->{'_Foils'})); + my %Foildata = %{$ORdata->{'_Foils'}}; + my @Foils = sort(keys(%Foildata)); + my %Concepts; + foreach my $foilid (@Foils) { + push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}}, + $foilid); + } + undef(@Foils); + # Having gathered the concept information in a hash, we now translate it + # into an array because we need to be consistent about order. + # Also put the foils in order, too. + my $sortfunction = sub { + my %Numbers = (one => 1, + two => 2, + three => 3, + four => 4, + five => 5, + six => 6, + seven => 7, + eight => 8, + nine => 9, + ten => 10,); + my $a1 = lc($a); + my $b1 = lc($b); + if (exists($Numbers{$a1})) { + $a1 = $Numbers{$a1}; } - if ($total == 0) { - push(@Plotdata,0); + if (exists($Numbers{$b1})) { + $b1 = $Numbers{$b1}; + } + if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) { + return $a1 <=> $b1; } else { - push(@Plotdata,100 * $correct / $total); + return $a1 cmp $b1; } + }; + my @Concepts; + foreach my $concept (sort $sortfunction (keys(%Concepts))) { + if (! defined($Concepts{$concept})) { + $Concepts{$concept}=[]; +# next; + } + push(@Concepts,{ name => $concept, + foils => [@{$Concepts{$concept}}]}); + push(@Foils,(@{$Concepts{$concept}})); } # - # Create the plot - my $title = ($end_index - $begin_index).' submissions'; - my $correctplot = &Apache::loncommon::DrawGraph($title, - 'Concept Number', - 'Percent Correct', - 100, - $plotcolors, - \@Plotdata); - $analysis_html.=''. - ''.$correctplot.''. - ''. - 'Start Time:  '.$interval->{'startdateform'}.'
'. - 'End Time  : '. - ' '.$interval->{'enddateform'}.'
'. -# 'Plot Title  :'.(" "x3). -# $interval->{'titleform'}. - ''. - "\n"; - return $analysis_html; + # Build up the table of row labels. + my $table = &Apache::loncommon::start_data_table(); + if (@Concepts > 1) { + $table .= &Apache::loncommon::start_data_table_header_row(). + ''.&mt('Concept Number').''. + ''.&mt('Concept').''. + ''.&mt('Foil Number').''. + ''.&mt('Foil Name').''. + ''.&mt('Foil Text').''. + ''.&mt('Correct Value').''. + &Apache::loncommon::end_data_table_header_row(); + } else { + $table .= &Apache::loncommon::start_data_table_header_row(). + ''.&mt('Foil Number').''. + ''.&mt('Foil Name').''. + ''.&mt('Foil Text').''. + ''.&mt('Correct Value').''. + &Apache::loncommon::end_data_table_header_row(); + } + my $conceptindex = 1; + my $foilindex = 1; + foreach my $concept (@Concepts) { + my @FoilsInConcept = @{$concept->{'foils'}}; + my $firstfoil = shift(@FoilsInConcept); + if (@Concepts > 1) { + $table .= &Apache::loncommon::start_data_table_row(). + ''.$conceptindex.''. + ''.&HTML::Entities::encode($concept->{'name'},'<>&"').''. + ''.$foilindex++.''. + ''.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').''. + ''.$Foildata{$firstfoil}->{'text'}.''. + ''.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').''. + &Apache::loncommon::end_data_table_row(); + } else { + $table .= &Apache::loncommon::start_data_table_row(). + ''.$foilindex++.''. + ''.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').''. + ''.$Foildata{$firstfoil}->{'text'}.''. + ''.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').''. + &Apache::loncommon::end_data_table_row(); + } + foreach my $foilid (@FoilsInConcept) { + if (@Concepts > 1) { + $table .= &Apache::loncommon::start_data_table_row(). + ''. + ''. + ''.$foilindex.''. + ''.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').''. + ''.$Foildata{$foilid}->{'text'}.''. + ''.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').''. + &Apache::loncommon::end_data_table_row(); + } else { + $table .= &Apache::loncommon::start_data_table_row(). + ''.$foilindex.''. + ''.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').''. + ''.$Foildata{$foilid}->{'text'}.''. + ''.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').''. + &Apache::loncommon::end_data_table_row(); + } + } continue { + $foilindex++; + } + } continue { + $conceptindex++; + } + $table .= &Apache::loncommon::end_data_table(); + # + # Build option index with color stuff + return ($table,\@Foils,\@Concepts); } -######################################################### -######################################################### -## -## Excel output -## -######################################################### -######################################################### -sub prepare_excel_sheet { - my ($PerformanceData,$ORdata) = @_; - my (undef,$Foils,$Concepts) = &build_foil_index($ORdata); +sub build_option_index { + my ($ORdata)= @_; + my $table = "\n"; + my $optionindex = 0; + my @Rows; + foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) { + my $color = $plotcolors->[$optionindex++]; + push (@Rows, + ''. + ''. + ''. + "\n"); + } + shift(@Rows); # Throw away 'correct option chosen' color + $table .= join('',reverse(@Rows)); + $table .= "
'. + ''.('*'x3).''.''.&HTML::Entities::encode($option,'<>&"').'
\n"; } -sub process_data_for_excel_sheet { - my ($PerformanceData,$Foils,$Concepts,$ORdata)=@_; +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}) { + my $color = $plotcolors->[$foil_index++]; + 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"; } ######################################################### ######################################################### ## -## Interface +## Generic Interface Routines ## ######################################################### ######################################################### sub CreateInterface { ## ## Environment variable initialization - if (! exists$ENV{'form.AnalyzeOver'}) { - $ENV{'form.AnalyzeOver'} = 'Tries'; + if (! exists($env{'form.AnalyzeOver'})) { + $env{'form.AnalyzeOver'} = 'tries'; } ## ## Build the menu my $Str = ''; - $Str .= ''."\n"; - $Str .= ''; - $Str .= ''; - $Str .= ''; -# $Str .= ''; - $Str .= ''; - $Str .= ''."\n"; + $Str .= '

'; + $Str .= &Apache::loncommon::start_data_table(); + $Str .= &Apache::loncommon::start_data_table_header_row(); + $Str .= '

'; + $Str .= ''; + $Str .= ''; + $Str .= ''; + $Str .= &Apache::loncommon::end_data_table_header_row(); ## ## - $Str .= ''; # + $Str .= ''; + # $Str .= ''; # -# $Str .= ''; ## ## - $Str .= ''."\n"; - $Str .= '
'.&mt('Sections').''.&mt('Enrollment Status').''.&mt('Sequences and Folders').' 
'.&mt('Sections').''.&mt('Groups').''.&mt('Access Status').''.&mt('Options').'
'."\n"; + $Str .= &Apache::loncommon::start_data_table_row(); + $Str .= ''."\n"; $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); $Str .= ''."\n"; + $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5); + $Str .= ''; $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); $Str .= ''; - my $only_seq_with_assessments = sub { - my $s=shift; - if ($s->{'num_assess'} < 1) { - return 0; - } else { - return 1; - } - }; - &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, - $only_seq_with_assessments); ## ## - $Str .= ''; - { # These braces are here to organize the code, not scope it. - { - $Str .= ''.&mt('Analyze Over '); - $Str .='
'; - } - { - $Str .= ''.&mt('Analyze as '); - $Str .='
'; - } - { - $Str .= '
'.&mt('Number of Plots:'); - $Str .= ''; - } - } + $Str .= '		'; + ## + my $showprob_checkbox = + '
'; + ## + my $analyze_selector = ''; + $Str .= '
'.$/; + ## + my $numplots_selector = ''; + $Str .= '
'; + ## $Str .= '
'."\n"; - return $Str; -} - -sub OptionResponseProblemSelector { - my $Str; - $Str = "\n\n"; - foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { - next if ($seq->{'num_assess'}<1); - my $seq_str = ''; - foreach my $res (@{$seq->{'contents'}}) { - next if ($res->{'type'} ne 'assessment'); - foreach my $part (@{$res->{'parts'}}) { - my $partdata = $res->{'partdata'}->{$part}; - if (! exists($partdata->{'option'}) || - $partdata->{'option'} == 0) { - next; - } - for (my $i=0;$i{'ResponseTypes'}});$i++){ - my $respid = $partdata->{'ResponseIds'}->[$i]; - my $resptype = $partdata->{'ResponseTypes'}->[$i]; - if ($resptype eq 'option') { - my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid); - my $checked = ''; - if ($ENV{'form.problemchoice'} eq $value) { - $checked = 'checked '; - } - $seq_str .= '\n"; - } - } - } - } - if ($seq_str ne '') { - $Str .= ''. - "\n".$seq_str; - } - } - $Str .= "
'. - ''. - ''. - ''.$res->{'title'}.' '; - if ($partdata->{'option'} > 1) { - $seq_str .= &mt('response').' '.$respid; - } - $seq_str .= "
 '.$seq->{'title'}.'
\n"; + $Str .= &Apache::loncommon::end_data_table_row(); + $Str .= &Apache::loncommon::end_data_table(); + $Str .= '

'; + $Str .= '

'; return $Str; } ######################################################### ######################################################### ## -## Misc functions +## Misc Option Response functions ## ######################################################### ######################################################### -sub get_problem_symb { - my $problemstring = shift(); - my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/); - return ($symb,$partid,$resid); -} - -sub get_resource_from_symb { - my ($symb) = @_; - foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { - foreach my $res (@{$seq->{'contents'}}) { - if ($res->{'symb'} eq $symb) { - return $res; - } - } - } - return undef; -} - sub get_time_from_row { my ($row) = @_; if (ref($row)) { - return $row->[3]; + return $row->[&Apache::loncoursedata::RD_timestamp()]; } return undef; } @@ -910,17 +2022,33 @@ sub get_time_from_row { sub get_tries_from_row { my ($row) = @_; if (ref($row)) { - return $row->[4]; + return $row->[&Apache::loncoursedata::RD_tries()]; } return undef; } -sub Process_Row { +sub hashify_attempt { + my ($row) = @_; + my %attempt; + $attempt{'student'} = $row->[&Apache::loncoursedata::RD_sname()]; + $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()]; + $attempt{'submission'} = &unescape($row->[&Apache::loncoursedata::RD_submission()]); + $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()]; + $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()]; + return %attempt; +} + +sub Process_OR_Row { my ($row) = @_; my %RowData; - my ($award,$grading,$submission,$time,$tries) = @$row; - next if ($award eq 'MISSING_ANSWER'); - if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { +# my $student_id = $row->[&Apache::loncoursedata::RD_student_id()]; + my $award = $row->[&Apache::loncoursedata::RD_awarddetail()]; + my $grading = $row->[&Apache::loncoursedata::RD_response_eval()]; + my $submission = $row->[&Apache::loncoursedata::RD_submission()]; + my $time = $row->[&Apache::loncoursedata::RD_timestamp()]; +# my $tries = $row->[&Apache::loncoursedata::RD_tries()]; + return undef if ($award eq 'MISSING_ANSWER'); + if (&submission_is_correct($award)) { $RowData{'_correct'} = 1; } $RowData{'_total'} = 1; @@ -928,12 +2056,12 @@ sub Process_Row { my @Foilsubs = split('&',$submission); for (my $j=0;$j<=$#Foilgrades;$j++) { my ($foilid,$correct) = split('=',$Foilgrades[$j]); + $foilid = &unescape($foilid); my (undef,$submission) = split('=',$Foilsubs[$j]); if ($correct) { $RowData{$foilid}->{'_correct'}++; } else { - $submission = &Apache::lonnet::unescape($submission); - $submission =~ s/\%20/ /g; + $submission = &unescape($submission); $RowData{$foilid}->{$submission}++; } $RowData{$foilid}->{'_total'}++; @@ -941,47 +2069,13 @@ sub Process_Row { return %RowData; } -## -## get problem data and put it into a useful data structure. -## note: we must force each foil and option to not begin or end with -## spaces as they are stored without such data. -## -sub get_problem_data { - my ($url) = @_; - my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze')); - (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2); - my %Answer; - %Answer=&Apache::lonnet::str2hash($Answ); - my %Partdata; - foreach my $part (@{$Answer{'parts'}}) { - while (my($key,$value) = each(%Answer)) { - next if ($key !~ /^$part/); - $key =~ s/^$part\.//; - if (ref($value) eq 'ARRAY') { - if ($key eq 'options') { - $Partdata{$part}->{'Options'}=$value; - } elsif ($key eq 'concepts') { - $Partdata{$part}->{'Concepts'}=$value; - } elsif ($key =~ /^concept\.(.*)$/) { - my $concept = $1; - foreach my $foil (@$value) { - $Partdata{$part}->{'Foils'}->{$foil}->{'Concept'}= - $concept; - } - } - } else { - if ($key=~ /^foil\.text\.(.*)$/) { - my $foil = $1; - $Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil; - $Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value; - } elsif ($key =~ /^foil\.value\.(.*)$/) { - my $foil = $1; - $Partdata{$part}->{'Foils'}->{$foil}->{'value'}=$value; - } - } - } +sub submission_is_correct { + my ($award) = @_; + if ($award =~ /(APPROX_ANS|EXACT_ANS)/) { + return 1; + } else { + return 0; } - return %Partdata; } 1;