--- loncom/interface/statistics/lonproblemanalysis.pm 2005/03/15 00:51:43 1.119 +++ loncom/interface/statistics/lonproblemanalysis.pm 2006/05/01 19:29:13 1.125 @@ -1,6 +1,6 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.119 2005/03/15 00:51:43 matthew Exp $ +# $Id: lonproblemanalysis.pm,v 1.125 2006/05/01 19:29:13 albertel Exp $ # # Copyright Michigan State University Board of Trustees # @@ -27,7 +27,7 @@ package Apache::lonproblemanalysis; use strict; -use Apache::lonnet(); +use Apache::lonnet; use Apache::loncommon(); use Apache::lonhtmlcommon(); use Apache::loncoursedata(); @@ -73,7 +73,7 @@ sub BuildProblemAnalysisPage { # my @Students = @Apache::lonstatistics::Students; # - if (@Students < 1 && exists($ENV{'form.firstrun'})) { + if (@Students < 1 && exists($env{'form.firstrun'})) { $r->print('<h2>There are no students in the sections selected</h2>'); } # @@ -82,8 +82,8 @@ sub BuildProblemAnalysisPage { $r->rflush(); # my $problem_types = '(option|radiobutton|numerical)'; - if (exists($ENV{'form.problemchoice'}) && - ! exists($ENV{'form.SelectAnother'})) { + if (exists($env{'form.problemchoice'}) && + ! exists($env{'form.SelectAnother'})) { foreach my $button (@SubmitButtons) { if ($button->{'name'} eq 'break') { $r->print("<br />\n"); @@ -97,34 +97,37 @@ sub BuildProblemAnalysisPage { $r->print($html.(' 'x5)); } # - $r->print(&Apache::lonstathelpers::submission_report_form - ('problem_analysis')); + + # This is commented out pending actual implementation of + # CSV and Excel output. + #$r->print(&Apache::lonstathelpers::submission_report_form + # ('problem_analysis')); # $r->print('<hr />'); $r->rflush(); # # Determine which problem we are to analyze my $current_problem = &Apache::lonstathelpers::get_target_from_id - ($ENV{'form.problemchoice'}); + ($env{'form.problemchoice'}); # my ($navmap,$prev,$curr,$next) = &Apache::lonstathelpers::get_prev_curr_next($current_problem, $problem_types, 'response', ); - if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) { + if (exists($env{'form.PrevProblemAnalysis'}) && defined($prev)) { $current_problem = $prev; - } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) { + } elsif (exists($env{'form.NextProblemAnalysis'}) && defined($next)) { $current_problem = $next; } else { $current_problem = $curr; } # # Store the current problem choice and send it out in the form - $ENV{'form.problemchoice'} = + $env{'form.problemchoice'} = &Apache::lonstathelpers::make_target_id($current_problem); $r->print('<input type="hidden" name="problemchoice" value="'. - $ENV{'form.problemchoice'}.'" />'); + $env{'form.problemchoice'}.'" />'); # if (! defined($current_problem->{'resource'})) { $r->print('resource is undefined'); @@ -133,7 +136,7 @@ sub BuildProblemAnalysisPage { $r->print('<h1>'.$resource->compTitle.'</h1>'); $r->print('<h3>'.$resource->src.'</h3>'); $r->print('<h4>'.&Apache::lonstatistics::section_and_enrollment_description().'</h4>'); - if ($ENV{'form.show_prob'} eq 'true') { + if ($env{'form.show_prob'} eq 'true') { $r->print(&Apache::lonstathelpers::render_resource($resource)); } $r->rflush(); @@ -159,11 +162,14 @@ sub BuildProblemAnalysisPage { } $r->print('<hr />'); } else { - $r->print('<input type="submit" name="ProblemAnalysis" value="'. - &mt('Analyze Problem').'" />'); + my $submit_button = '<input type="submit" '. + 'name="ProblemAnalysis" value="'. + &mt('Analyze Problem').'" />'; + $r->print($submit_button); $r->print(' 'x5); $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>'); - $r->print(&Apache::lonstathelpers::problem_selector($problem_types)); + $r->print(&Apache::lonstathelpers::problem_selector($problem_types, + $submit_button)); } } @@ -178,7 +184,7 @@ sub numerical_response_analysis { my ($r,$problem,$problem_analysis,$students) = @_; my $c = $r->connection(); # - if ($ENV{'form.AnalyzeOver'} !~ /^(tries|time)$/) { + if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) { $r->print('Bad request'); } # @@ -207,14 +213,14 @@ sub numerical_response_analysis { return; } my $analysis_html = '<table>'; - for (my $plot_num = 1;$plot_num<=$ENV{'form.NumPlots'};$plot_num++) { + 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') { + if ($env{'form.AnalyzeOver'} eq 'tries') { $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)}; $header_message = 'Attempt [_1]'; $stats_message = @@ -338,7 +344,9 @@ sub numerical_plot_percent { while (my ($ans,$submissions) = each(%$responses)) { while (my ($submission,$counts) = each(%$submissions)) { my ($correct_count,$incorrect_count) = @$counts; - my $scaled_value = 100*($submission-$ans)/abs($ans); + my $scaled_value = + ($ans) ? 100*($submission-$ans)/abs($ans) + : 0; if ($scaled_value < $bins[0]) { $bins[0]=$scaled_value -1; } @@ -393,7 +401,8 @@ sub numerical_plot_differences { } elsif ($low_bin < 0 && $high_bin < -$low_bin) { $high_bin = -$low_bin; } - if (($high_bin -$low_bin)/$min_bin_size * 2 > $max_bins) { + if (!$min_bin_size || + ($high_bin -$low_bin)/$min_bin_size * 2 > $max_bins) { $min_bin_size = abs($high_bin - $low_bin) / $max_bins * 2; } my @bins; @@ -743,7 +752,7 @@ sub circle { sub radio_response_analysis { my ($r,$problem,$problem_analysis,$students) = @_; # - if ($ENV{'form.AnalyzeOver'} !~ /^(tries|time)$/) { + if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) { $r->print('Bad request'); } # @@ -804,13 +813,13 @@ sub radio_response_analysis { } # $analysis_html.='<table>'; - for (my $plot_num = 1;$plot_num<=$ENV{'form.NumPlots'};$plot_num++) { + 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') { + 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; @@ -818,7 +827,7 @@ sub radio_response_analysis { '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') { + } elsif ($env{'form.AnalyzeOver'} eq 'time') { my $starttime = &Apache::lonhtmlcommon::get_date_from_form ('startdate_'.$plot_num); my $endtime = &Apache::lonhtmlcommon::get_date_from_form @@ -940,7 +949,7 @@ sub ensure_start_end_times { (localtime($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 == $ENV{'form.NumPlots'}) { + if ($plot_num == $env{'form.NumPlots'}) { $start = $first; } } @@ -1187,13 +1196,13 @@ sub OptionResponseAnalysis { '</h2>'); } else { $r->rflush(); - if ($ENV{'form.AnalyzeOver'} eq 'tries') { + 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') { + } elsif ($env{'form.AnalyzeOver'} eq 'time') { my $analysis_html = &OR_time_analysis($PerformanceData, $problem_data); $r->print($analysis_html); @@ -1215,7 +1224,7 @@ sub OptionResponseAnalysis { sub OR_tries_analysis { my ($r,$PerformanceData,$ORdata) = @_; my $mintries = 1; - my $maxtries = $ENV{'form.NumPlots'}; + my $maxtries = $env{'form.NumPlots'}; my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); if (! defined($Concepts)) { $Concepts = []; @@ -1425,7 +1434,7 @@ sub OR_time_analysis { '</h3>'.$table; } # - my $num_plots = $ENV{'form.NumPlots'}; + my $num_plots = $env{'form.NumPlots'}; my $num_data = scalar(@$performance_data)-1; # my $current_index; @@ -1808,14 +1817,13 @@ sub build_foil_key { sub CreateInterface { ## ## Environment variable initialization - if (! exists$ENV{'form.AnalyzeOver'}) { - $ENV{'form.AnalyzeOver'} = 'tries'; + if (! exists($env{'form.AnalyzeOver'})) { + $env{'form.AnalyzeOver'} = 'tries'; } ## ## Build the menu my $Str = ''; - $Str .= &Apache::lonhtmlcommon::breadcrumbs - (undef,'Detailed Problem Analysis'); + $Str .= &Apache::lonhtmlcommon::breadcrumbs('Detailed Problem Analysis'); $Str .= '<table cellspacing="5">'."\n"; $Str .= '<tr>'; $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>'; @@ -1838,7 +1846,7 @@ sub CreateInterface { ## my $showprob_checkbox = '<input type="checkbox" name="show_prob" value="true" '; - if ($ENV{'form.show_prob'} eq 'true') { + if ($env{'form.show_prob'} eq 'true') { $showprob_checkbox .= 'checked '; } $showprob_checkbox.= ' />'; @@ -1848,14 +1856,14 @@ sub CreateInterface { ## my $analyze_selector = '<select name="AnalyzeOver" >'; $analyze_selector .= '<option value="tries" '; - if (! exists($ENV{'form.AnalyzeOver'}) || - $ENV{'form.AnalyzeOver'} eq 'tries'){ + if (! exists($env{'form.AnalyzeOver'}) || + $env{'form.AnalyzeOver'} eq 'tries'){ # Default to tries $analyze_selector .= ' selected '; } $analyze_selector .= '>'.&mt('Tries').'</option>'; $analyze_selector .= '<option value="time" '; - $analyze_selector .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'time'); + $analyze_selector .= ' selected ' if ($env{'form.AnalyzeOver'} eq 'time'); $analyze_selector .= '>'.&mt('Time').'</option>'; $analyze_selector .= '</select>'; $Str .= '<nobr><label>'. @@ -1865,14 +1873,14 @@ sub CreateInterface { '</label></nobr><br />'.$/; ## my $numplots_selector = '<select name="NumPlots">'; - if (! exists($ENV{'form.NumPlots'}) - || $ENV{'form.NumPlots'} < 1 - || $ENV{'form.NumPlots'} > 20) { - $ENV{'form.NumPlots'} = 5; + if (! exists($env{'form.NumPlots'}) + || $env{'form.NumPlots'} < 1 + || $env{'form.NumPlots'} > 20) { + $env{'form.NumPlots'} = 5; } foreach my $i (1,2,3,4,5,6,7,8,10,15,20) { $numplots_selector .= '<option value="'.$i.'" '; - if ($ENV{'form.NumPlots'} == $i) { $numplots_selector.=' selected '; } + if ($env{'form.NumPlots'} == $i) { $numplots_selector.=' selected '; } $numplots_selector .= '>'.$i.'</option>'; } $numplots_selector .= '</select></nobr><br />';