--- loncom/interface/statistics/lonproblemanalysis.pm 2003/09/29 21:13:23 1.24 +++ loncom/interface/statistics/lonproblemanalysis.pm 2003/10/13 21:12:56 1.34 @@ -1,6 +1,7 @@ # The LearningOnline Network with CAPA # -# $Id: lonproblemanalysis.pm,v 1.24 2003/09/29 21:13:23 matthew Exp $ + +# $Id: lonproblemanalysis.pm,v 1.34 2003/10/13 21:12:56 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -24,16 +25,12 @@ # # http://www.lon-capa.org/ # -# (Navigate problems for statistical reports -# YEAR=2002 -# 5/12,7/26,9/7,11/22 Behrouz Minaei -# -### package Apache::lonproblemanalysis; use strict; use Apache::lonnet(); +use Apache::loncommon(); use Apache::lonhtmlcommon(); use Apache::loncoursedata(); use Apache::lonstatistics; @@ -42,64 +39,413 @@ use Apache::lonlocal; sub BuildProblemAnalysisPage { my ($r,$c)=@_; $r->print('

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

'); - if (exists($ENV{'form.problemchoice'})) { - # This is me getting around my own cleverness: - &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, - undef); + $r->print(&CreateInterface()); + # + my @Students = @Apache::lonstatistics::Students; + # + if (exists($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 { + $r->print(''); + } + if (exists($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); + # + $r->print('
'); # - my ($symb,$id) = &get_problem_symb( + my ($symb,$part,$resid) = &get_problem_symb( &Apache::lonnet::unescape($ENV{'form.problemchoice'}) ); - $r->print('
'); + # my $resource = &get_resource_from_symb($symb); if (defined($resource)) { + my %Data = &get_problem_data($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; $r->print('
'. - # Oh this is dumb! Need to rewrite relative links - # otherwise images (for example) will not show. - &Apache::lonnet::ssi_body($resource->{'src'}). + ''. + $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.AnalyzeBy'} eq 'Tries') { + my $analysis_html = &tries_analysis($PerformanceData, + $ORdata); + $r->print($analysis_html); + } elsif ($ENV{'form.AnalyzeBy'} 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 { $r->print('resource is undefined'); } - $r->print('
    '); - $r->print("
  1. render problem\n"); - $r->print("
  2. image tag for plot\n"); - $r->print("
  3. plot key\n"); - $r->print('
'); - $r->print("
\nProblem choice = $symb $id\n
\n"); $r->print('
'); + } else { + $r->print(''); + $r->print(' 'x5); + $r->print('

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

'); + $r->print(&OptionResponseProblemSelector()); } - $r->print(''); - $r->print(&CreateInterface()); - if (! exists($ENV{'form.analysisfirstcall'})) { - return; +} + + +######################################################### +######################################################### +## +## Misc interface routines use by analysis code +## +######################################################### +######################################################### +sub build_foil_index { + my ($ORdata) = @_; + my @Foils = sort(keys(%{$ORdata->{'Foiltext'}})); + my %Row_Label; + foreach my $foilid (@Foils) { + my $value = $ORdata->{'Foiltext'}->{$foilid}; + $Row_Label{$foilid} = $ORdata->{'Foiltext'}->{$foilid}; + } + # + # Build up the table of row labels. + my $table = ''."\n"; + $table .= ''. + '\n"; + my $index = 1; + foreach my $foilid (@Foils) { + $table .= ''. + '\n"; + } continue { + $index++; } - # Okay, they asked for data, so make sure we get the latest data. - &Apache::lonnet::logthis('got here for some reason'); -# &Apache::lonstatistics::Gather_Full_Student_Data($r); - $r->print(&OptionResponseProblemSelector()); + $table .= "
'.&mt('Foil Number').''.&mt('Foil Text')."
'.$index.''.$Row_Label{$foilid}."
\n"; + return ($table,@Foils); } -sub get_problem_symb { - my $problemstring = shift(); - my ($symb,$id) = ($problemstring=~ /^(.*):([^:]*)$/); - return ($symb,$id); +######################################################### +######################################################### +## +## Tries Analysis +## +######################################################### +######################################################### +sub tries_analysis { + my ($PerformanceData,$ORdata) = @_; + my $mintries = 1; + my $maxtries = $ENV{'form.NumPlots'}; + my %ResponseData = &analyze_option_data_by_tries($PerformanceData, + $mintries,$maxtries); + my ($table,@Foils) = &build_foil_index($ORdata); + # + # Compute the data neccessary to make the plots + my @PlotData; + my @CumulativePlotData; + foreach my $foilid (@Foils) { + for (my $i=$mintries;$i<=$maxtries;$i++) { + # + # Gather the per-attempt data + push (@{$PlotData[$i]->{'good'}}, + $ResponseData{$foilid}->[$i]->{'percent_corr'}); + push (@{$PlotData[$i]->{'bad'}}, + 100-$ResponseData{$foilid}->[$i]->{'percent_corr'}); + # + # Someday we may need the cumulative data and I think + # this is a neat way of computing it as we go along. + push (@{$CumulativePlotData[$i]->{'good'}}, + $CumulativePlotData[-1]->{'good'}+ + $ResponseData{$foilid}->[$i]->{'correct'}); + push (@{$CumulativePlotData[$i]->{'bad'}}, + $CumulativePlotData[-1]->{'bad'}+ + $ResponseData{$foilid}->[$i]->{'incorrect'}); + } + } + # + # Build a table for the plots + $table .= "\n"; + my @Plots; + for (my $i=$mintries;$i<=$maxtries;$i++) { + my $minstu = $ResponseData{$Foils[0]}->[$i]->{'total'}; + my $maxstu = $ResponseData{$Foils[0]}->[$i]->{'total'}; + foreach my $foilid (@Foils) { + if ($minstu > $ResponseData{$foilid}->[$i]->{'total'}) { + $minstu = $ResponseData{$foilid}->[$i]->{'total'}; + } + if ($maxstu < $ResponseData{$foilid}->[$i]->{'total'}) { + $maxstu = $ResponseData{$foilid}->[$i]->{'total'}; + } + } + $maxstu = 0 if (! $maxstu); + $minstu = 0 if (! $minstu); + my $graphlink; + if ($maxstu == $minstu) { + $graphlink = &Apache::loncommon::DrawGraph + ('Attempt '.$i.', '.$maxstu.' students', + 'Foil Number', + 'Percent Correct', + 100, + $PlotData[$i]->{'good'}, + $PlotData[$i]->{'bad'}); + } else { + $graphlink = &Apache::loncommon::DrawGraph + ('Attempt '.$i.', '.$minstu.'-'.$maxstu. + ' students', + 'Foil Number', + 'Percent Correct', + 100, + $PlotData[$i]->{'good'}, + $PlotData[$i]->{'bad'}); + } + push(@Plots,$graphlink); + } + # + # Should this be something the user can set? Too many dialogs! + my $plots_per_row = 2; + while (my $plotlink = shift(@Plots)) { + $table .= ''; + for (my $i=1;$i<$plots_per_row;$i++) { + if ($plotlink = shift(@Plots)) { + $table .= ''; + } else { + $table .= ''; + } + } + $table .= "\n"; + } + $table .= "
'.$plotlink.''.$plotlink.'
\n"; + return ($table); +} + +sub analyze_option_data_by_tries { + my ($PerformanceData,$mintries,$maxtries) = @_; + my %Trydata; + $mintries = 1 if (! defined($mintries) || $mintries < 1); + $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries); + foreach my $row (@$PerformanceData) { + next if (! defined($row)); + my ($grading,$submission,$time,$tries) = @$row; + my @Foilgrades = split('&',$grading); + my @Foilsubs = split('&',$submission); + for (my $numtries = 1; $numtries <= $maxtries; $numtries++) { + if ($tries == $numtries) { + foreach my $foilgrade (@Foilgrades) { + my ($foilid,$correct) = split('=',$foilgrade); + if ($correct) { + $Trydata{$foilid}->[$numtries]->{'correct'}++; + } else { + $Trydata{$foilid}->[$numtries]->{'incorrect'}++; + } + } + } + } + } + foreach my $foilid (keys(%Trydata)) { + foreach my $tryhash (@{$Trydata{$foilid}}) { + next if ((! exists($tryhash->{'correct'}) && + ! exists($tryhash->{'incorrect'})) || + ($tryhash->{'correct'} < 1 && + $tryhash->{'incorrect'} < 1)); + $tryhash->{'total'} = $tryhash->{'correct'} + + $tryhash->{'incorrect'}; + $tryhash->{'percent_corr'} = 100 * + ($tryhash->{'correct'} / + ($tryhash->{'correct'} + $tryhash->{'incorrect'}) + ); + } + } + return %Trydata; +} + +######################################################### +######################################################### +## +## Time Analysis +## +######################################################### +######################################################### +sub time_analysis { + my ($PerformanceData,$ORdata) = @_; + my $num_plots = $ENV{'form.NumPlots'}; + my ($table,@Foils) = &build_foil_index($ORdata); + my $num_data = scalar(@$PerformanceData)-1; + my $percent = sprintf('%2f',100/$num_plots); + for (my $i=0;$i<$num_plots;$i++) { + my $starttime = &Apache::lonhtmlcommon::get_date_from_form + ('startdate_'.$i); + my $endtime = &Apache::lonhtmlcommon::get_date_from_form + ('enddate_'.$i); + my ($begin_index,$end_index,$plottitle,$plothtml,$data); + if (! defined($starttime) || ! defined($endtime)) { + $begin_index = $i*int($num_data/$num_plots); + $end_index = ($i+1)*int($num_data/$num_plots); + my $lownum = sprintf('%2.1f',$i*$percent); + $lownum =~ s/(\.0)$//; + my $highnum = sprintf('%2.1f',($i+1)*$percent); + $highnum =~ s/(\.0)$//; + $plottitle = $lownum.'% to '.$highnum.'% of submissions'; + } else { + my $j; + while (++$j < scalar(@$PerformanceData)) { + last if ($PerformanceData->[$j]->[2] > $starttime); + } + $begin_index = $j; + while (++$j < scalar(@$PerformanceData)) { + last if ($PerformanceData->[$j]->[2] > $endtime); + } + $end_index = $j; + $plottitle = 'Tries plot '.$i; + } + + ($plothtml,$starttime,$endtime,$data) = + &analyze_option_data_by_time($PerformanceData, + $begin_index,$end_index, + $plottitle, + @Foils); + my $startdateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','startdate_'.$i,$starttime); + my $enddateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','enddate_'.$i,$endtime); + $plothtml.= "
\n". + "Start Time: "." ".$startdateform."
\n". + "End Time  : "." ".$enddateform."
\n"; + $table.=$plothtml; + } + return $table; +} + +sub analyze_option_data_by_time { + my ($PerformanceData,$begin_index,$end_index,$description,@Foils) = @_; + my %TimeData; + # + # Get the start and end times for this segment of the plot + my $starttime = $PerformanceData->[$begin_index]->[2]; + my $endtime = $PerformanceData->[$end_index ]->[2]; + # + # Compute the number getting the foils correct or incorrects + for (my $i=$begin_index;$i<=$end_index;$i++) { + my $row = $PerformanceData->[$i]; + next if (! defined($row)); + my ($grading,$submission,$time,$tries) = @$row; + my @Foilgrades = split('&',$grading); + my @Foilsubs = split('&',$submission); + foreach my $foilgrade (@Foilgrades) { + my ($foilid,$correct) = split('=',$foilgrade); + if ($correct) { + $TimeData{$foilid}->{'correct'}++; + } else { + $TimeData{$foilid}->{'incorrect'}++; + } + } + } + # + # Compute the total and percent correct + my @Plotdata1; + my @Plotdata2; + foreach my $foilid (@Foils) { + if (! exists($TimeData{$foilid}->{'correct'})) { + $TimeData{$foilid}->{'correct'} = 0; + } + if (! exists($TimeData{$foilid}->{'incorrect'})) { + $TimeData{$foilid}->{'incorrect'} = 0; + } + $TimeData{$foilid}->{'total'} = $TimeData{$foilid}->{'correct'} + + $TimeData{$foilid}->{'incorrect'}; + $TimeData{$foilid}->{'percent_corr'} = 100 * + $TimeData{$foilid}->{'correct'} / + $TimeData{$foilid}->{'total'}; + push (@Plotdata1, $TimeData{$foilid}->{'percent_corr'}); + push (@Plotdata2,100-$TimeData{$foilid}->{'percent_corr'}); + } + # + # Create the plot + my $graphlink = &Apache::loncommon::DrawGraph + ($description,#'Time Interval Analysis', + 'Foil Number', + 'Percent Correct / Incorrect', + 100, + \@Plotdata1,\@Plotdata2); + # + return ($graphlink,$starttime,$endtime,\%TimeData); } + + + +######################################################### +######################################################### +## +## Interface +## +######################################################### +######################################################### sub CreateInterface { + ## + ## Environment variable initialization + if (! exists$ENV{'form.AnalyzeBy'}) { + $ENV{'form.AnalyzeBy'} = 'Tries'; + } + ## + ## Build the menu my $Str = ''; $Str .= ''."\n"; $Str .= ''; $Str .= ''; $Str .= ''; - $Str .= ''; +# $Str .= ''; + $Str .= ''; $Str .= ''."\n"; - # + ## + ## $Str .= ''; + # + $Str .= ''; + # +# $Str .= ''."\n"; +# $Str .= ''; + # + $Str .= ''; + # + $Str .= ''."\n"; $Str .= '
'.&mt('Sections').''.&mt('Enrollment Status').''.&mt('Sequences and Folders').''.&mt('Sequences and Folders').' 
'."\n"; $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); - $Str .= ''; + $Str .= ''; $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); - $Str .= ''; + $Str .= ''; my $only_seq_with_assessments = sub { my $s=shift; if ($s->{'num_assess'} < 1) { @@ -108,16 +454,43 @@ sub CreateInterface { return 1; } }; - $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, + &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, $only_seq_with_assessments); - $Str .= '
'; + $Str .= ''.&mt('Analyze By '); + $Str .='
'; + # + $Str .= '
'.&mt('Number of Plots:'); + $Str .= ''; + $Str .= '
'."\n"; - $Str .= ''; - $Str .= ' 'x5; - $Str .= ''; - $Str .= ' 'x5; return ($Str); } @@ -129,7 +502,7 @@ sub OptionResponseProblemSelector { my $seq_str = ''; foreach my $res (@{$seq->{'contents'}}) { # &Apache::lonnet::logthis('checking '.$res->{'title'}); -# next if ($res->{'type'} ne 'assessment'); + next if ($res->{'type'} ne 'assessment'); foreach my $part (@{$res->{'parts'}}) { my $partdata = $res->{'partdata'}->{$part}; if (! exists($partdata->{'option'}) || @@ -140,7 +513,7 @@ sub OptionResponseProblemSelector { my $respid = $partdata->{'ResponseIds'}->[$i]; my $resptype = $partdata->{'ResponseTypes'}->[$i]; if ($resptype eq 'option') { - my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$respid); + my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid); my $checked = ''; if ($ENV{'form.problemchoice'} eq $value) { $checked = 'checked '; @@ -166,12 +539,23 @@ sub OptionResponseProblemSelector { return $Str; } +######################################################### +######################################################### +## +## Misc functions +## +######################################################### +######################################################### +sub get_problem_symb { + my $problemstring = shift(); + my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/); + return ($symb,$partid,$resid); +} + sub get_resource_from_symb { my ($symb) = @_; - &Apache::lonnet::logthis('target symb = :'.$symb.':'); foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { foreach my $res (@{$seq->{'contents'}}) { - &Apache::lonnet::logthis('symb = :'.$res->{'symb'}.':'); if ($res->{'symb'} eq $symb) { return $res; } @@ -180,46 +564,74 @@ sub get_resource_from_symb { return undef; } -=pod - -sub InitAnalysis { - my ($resource,$sname,$sdom)=@_; - my $symb = $resource-> - my $URI = $hash{'src_'.$rid}; - - my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze', - 'grade_username' => $sname, - 'grade_domain' => $sdom, - 'grade_courseid' => $cid, - 'grade_symb' => $symb)); -# my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze')); - +sub get_problem_data { + my ($url) = @_; +# my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze', +# 'grade_username' => $sname, +# 'grade_domain' => $sdom, +# 'grade_courseid' => $cid, +# 'grade_symb' => $symb)); + my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze')); (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2); - %Answer=(); + my %Answer; %Answer=&Apache::lonnet::str2hash($Answ); - - my $parts=''; - foreach my $elm (@{$Answer{"parts"}}) { - $parts.="$elm,"; - } - chop($parts); - my $conc=''; - foreach my $elm (@{$Answer{"$parts.concepts"}}) { - $conc.="$elm@"; - } - chop($conc); - - @Concepts=split(/\@/,$conc); - foreach my $concept (@{$Answer{"$parts.concepts"}}) { - foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) { - $foil_to_concept{$foil} = $concept; - #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"}; +# &Apache::lonnet::logthis('keys of %Answer = '.join(', ',(keys(%Answer)))); +# &Apache::lonnet::logthis('$Answer{parts} = '. +# join(', ',@{$Answer{'parts'}})); + 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}->{$foil}->{'Concept'}=$concept; + } + } + # &Apache::lonnet::logthis($part.' '.$key.' (array) = '. + # join(', ',@$value)); + } else { + $value =~ s/^\s*//g; + $value =~ s/\s*$//g; + if ($key=~ /^foil\.text\.(.*)$/) { + my $foil = $1; + $Partdata{$part}->{'Foiltext'}->{$foil}=$value; + } elsif ($key =~ /^foil\.value\.(.*)$/) { + my $foil = $1; + $Partdata{$part}->{'FoilValues'}->{$foil}=$value; + } +# &Apache::lonnet::logthis($part.' '.$key.' = '.$value); + } } } - return $symb; -} -=cut +# my $parts=''; +# foreach my $elm (@{$Answer{"parts"}}) { +# $parts.="$elm,"; +# } +# chop($parts); +# my $conc=''; +# foreach my $elm (@{$Answer{"$parts.concepts"}}) { +# $conc.="$elm@"; +# } +# chop($conc); +# +# @Concepts=split(/\@/,$conc); +# foreach my $concept (@{$Answer{"$parts.concepts"}}) { +# foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) { +# $foil_to_concept{$foil} = $concept; +# #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"}; +# } +# } +# return $symb; + return %Partdata; +} 1;