--- loncom/interface/statistics/lonproblemanalysis.pm 2002/11/25 18:17:36 1.16 +++ loncom/interface/statistics/lonproblemanalysis.pm 2004/02/13 18:25:57 1.66 @@ -1,7 +1,6 @@ # The LearningOnline Network with CAPA -# (Publication Handler # -# $Id: lonproblemanalysis.pm,v 1.16 2002/11/25 18:17:36 minaeibi Exp $ +# $Id: lonproblemanalysis.pm,v 1.66 2004/02/13 18:25:57 matthew Exp $ # # Copyright Michigan State University Board of Trustees # @@ -25,579 +24,1677 @@ # # 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 GDBM_File; +use Apache::loncoursedata(); +use Apache::lonstatistics; +use Apache::lonlocal; +use Apache::lonstathelpers; +use HTML::Entities(); +use Time::Local(); +use Spreadsheet::WriteExcel(); + +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 => 'ClearCache', + text => 'Clear Caches' }, + { name => 'updatecaches', + text => 'Update Student Data' }, + { name => 'SelectAnother', + text => 'Choose a different Problem' }, + { name => 'ExcelOutput', + text => 'Produce Excel Output' }); -my $jr; sub BuildProblemAnalysisPage { - my ($cacheDB, $r)=@_; + my ($r,$c)=@_; + # + my %Saveable_Parameters = ('Status' => 'scalar', + 'Section' => 'array', + 'NumPlots' => 'scalar', + 'AnalyzeAs' => '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('

'.&mt('Detailed Problem Analysis').'

'); + $r->print(&CreateInterface()); + # + my @Students = @Apache::lonstatistics::Students; + # + if (@Students < 1) { + $r->print('

There are no students in the sections selected

'); + } + # + &Apache::loncoursedata::clear_internal_caches(); + 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(''); + } + $r->rflush(); + # + my $problem_types = '(option|radiobutton|numerical)'; + if (exists($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); + } + } + # + $r->print('
'); + $r->rflush(); + # + # Determine which problem we are to analyze + my $current_problem = &Apache::lonstathelpers::get_target_from_id + ($ENV{'form.problemchoice'}); + # + my ($prev,$curr,$next) = + &Apache::lonstathelpers::get_prev_curr_next($current_problem, + $problem_types, + 'response', + ); + if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) { + $current_problem = $prev; + } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) { + $current_problem = $next; + } else { + $current_problem = $curr; + } + # + # Store the current problem choice and send it out in the form + $ENV{'form.problemchoice'} = + &Apache::lonstathelpers::make_target_id($current_problem); + $r->print(''); + # + if (! defined($current_problem->{'resource'})) { + $r->print('resource is undefined'); + } else { + my $resource = $current_problem->{'resource'}; + $r->print('

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

'); + $r->print('

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

'); + $r->print(&Apache::lonstathelpers::render_resource($resource)); + $r->rflush(); + my %Data = &get_problem_data($resource->{'src'}); + my $ProblemData = $Data{$current_problem->{'part'}. + '.'. + $current_problem->{'respid'}}; + if ($current_problem->{'resptype'} eq 'option') { + &OptionResponseAnalysis($r,$current_problem, + $ProblemData, + \@Students); + } elsif ($current_problem->{'resptype'} eq 'radiobutton') { + &RadioResponseAnalysis($r,$current_problem, + $ProblemData, + \@Students); + } elsif ($current_problem->{'resptype'} eq 'numerical') { + &NumericalResponseAnalysis($r,$current_problem, + $ProblemData,\@Students); + } else { + $r->print('

This analysis is not supported

'); + } + } + $r->print('
'); + } else { + $r->print(''); + $r->print(' 'x5); + $r->print('

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

'); + $r->print(&Apache::lonstathelpers::ProblemSelector + ($problem_types)); + } +} - my %cache; - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { - $r->print('Unable to tie database.'); +######################################################### +######################################################### +## +## Numerical Response Routines +## +######################################################### +######################################################### +sub NumericalResponseAnalysis { + my ($r,$problem,$ProblemData,$Students) = @_; + my ($resource,$respid) = ($problem->{'resource'}, + $problem->{'respid'}); + my $analysis_html; + my $PerformanceData = + &Apache::loncoursedata::get_response_data + ($Students,$resource->{'symb'},$respid); + if (! defined($PerformanceData) || + ref($PerformanceData) ne 'ARRAY' ) { + $analysis_html = '

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

'; + $r->print($analysis_html); return; } + my $Answers = &GetStudentAnswers($r,$problem,$Students); + + $r->print('

This analysis is not yet supported

'); +} - my $Ptr = ''; - $Ptr .= ''; - $Ptr .= ''."\n"; - $Ptr .= ''."\n"; - $Ptr .= ''."\n"; - $Ptr .= '
Select Sections'; - $Ptr .= ''."\n"; - my @sectionsSelected = split(':',$cache{'sectionsSelected'}); - my @sections = split(':',$cache{'sectionList'}); - $Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections, - \@sectionsSelected, - 'Statistics'); - $Ptr .= '
Intervals'; - $Ptr .= &IntervalOptions($cache{'Interval'}); - $Ptr .= '

'; - $r->print($Ptr); +sub GetStudentAnswers { + my ($r,$problem,$Students) = @_; + my %Answers; + my ($resource,$partid,$respid) = ($problem->{'resource'}, + $problem->{'part'}, + $problem->{'respid'}); + # Open progress window + my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin + ($r,'Student Answer Compilation Status', + 'Student Answer Compilation Progress', scalar(@$Students)); + $r->print("\n"); $r->rflush(); - $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache, $r)); - - untie(%cache); - - return; + foreach my $student (@$Students) { + my $sname = $student->{'username'}; + my $sdom = $student->{'domain'}; + my $answer = analyze_problem_as_student($resource, + $sname,$sdom, + $partid,$respid); + $r->print(''. + ''. + ''. + ''. + ''."\n"); + &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state, + &mt('last student')); + $Answers{$sname.':'.$sdom}=$answer; + } + $r->print("
'.$sname.''.$sdom.''.$answer.'
\n"); + $r->rflush(); + &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); + # close progress window + return \%Answers; } -sub BuildAnalyzePage { - my ($cacheDB, $students, $courseID,$r)=@_; +######################################################### +######################################################### +## +## Radio Response Routines +## +######################################################### +######################################################### +sub RadioResponseAnalysis { + my ($r,$problem,$ProblemData,$Students) = @_; + my ($resource,$respid) = ($problem->{'resource'}, + $problem->{'respid'}); + my $analysis_html; + my $PerformanceData = + &Apache::loncoursedata::get_response_data + ($Students,$resource->{'symb'},$respid); + if (! defined($PerformanceData) || + ref($PerformanceData) ne 'ARRAY' ) { + $analysis_html = '

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

'; + $r->print($analysis_html); + return; + } + if (exists($ENV{'form.ExcelOutput'})) { + $analysis_html .= &RR_Excel_output($r,$problem->{'resource'}, + $PerformanceData,$ProblemData); + } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') { + $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'}, + $PerformanceData,$ProblemData); + } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { + $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'}, + $PerformanceData,$ProblemData); + } else { + $analysis_html .= '

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

'; + } + $r->print($analysis_html); +} - $jr = $r; - my $c = $r->connection; +sub RR_Excel_output { + my ($r,$PerformanceData,$ProblemData) = @_; + return '

No!

'; +} - my $Str = ''; - my %cache; +sub RR_Tries_Analysis { + my ($r,$resource,$PerformanceData,$ProblemData) = @_; + my $analysis_html; + my $mintries = 1; + my $maxtries = $ENV{'form.NumPlots'}; + my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData); + if ((! defined($Concepts)) || ((@$Concepts < 2) && + ($ENV{'form.AnalyzeAs'} ne 'Foils'))) { + $table = '

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

'.$table; + $ENV{'form.AnalyzeAs'} = 'Foils'; + } + $analysis_html .= $table; + my @TryData = &RR_tries_data_analysis($r,$PerformanceData); +# if ($ENV{'form.AnalyzeAs'} eq 'Foils') { + $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils, + \@TryData,$ProblemData); +# } else { +# $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries, +# $Concepts, +# \@TryData, +# $ProblemData); +# } + return $analysis_html; +} - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { - $Str .= 'Unable to tie database.'; - $r->print($Str); - return; +sub RR_tries_data_analysis { + my ($r,$Attempt_data) = @_; + my @TryData; + foreach my $attempt (@$Attempt_data) { + my %Attempt = &hashify_attempt($attempt); + my ($answer,undef) = split('=',$Attempt{'submission'}); + $TryData[$Attempt{'tries'}]->{$answer}++; } + return @TryData; +} - # Remove students who don't have the proper section. - my @sectionsSelected = split(':',$cache{'sectionsSelected'}); +sub RR_Time_Analysis { + my ($r,$PerformanceData,$ProblemData) = @_; + my $html; + return $html; +} - my $studentCount = scalar @$students; - for(my $studentIndex=$studentCount-1; $studentIndex>=0; - $studentIndex--) { - my $value = $cache{$students->[$studentIndex].':section'}; - my $found = 0; - foreach (@sectionsSelected) { - if($_ eq 'none') { - if($value eq '' || !defined($value) || $value eq ' ') { - $found = 1; - last; - } +sub RR_Tries_Foil_Analysis { + my ($min,$max,$Foils,$TryData,$ProblemData) = @_; + my $html; + # + # Compute the data neccessary to make the plots + for (my $try=$min;$try<=$max;$try++) { + my @PlotData_Correct; + my @PlotData_Incorrect; + next if ($try > scalar(@{$TryData})); + next if (! defined($TryData->[$try])); + my %DataSet = %{$TryData->[$try]}; + my $total = 0; + foreach my $foilid (@$Foils) { + $total += $DataSet{$foilid}; + } + foreach my $foilid (@$Foils) { + if ($total == 0) { + push (@PlotData_Correct,0); + push (@PlotData_Incorrect,0); } else { - if($value eq $_) { - $found = 1; - last; + if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') { + push (@PlotData_Correct, + int(100*$DataSet{$foilid}/$total)); + push (@PlotData_Incorrect,0); + } else { + push (@PlotData_Correct,0); + push (@PlotData_Incorrect, + int(100*$DataSet{$foilid}/$total)); } } } - if($found == 0) { - splice(@$students, $studentIndex, 1); - } + my $title='Attempt '.$try; + my $xlabel = $total.' Submissions'; + $html.= &Apache::loncommon::DrawBarGraph($title, + $xlabel, + 'Percent Choosing', + 100, + ['#33ff00','#ff3300'], + undef, + \@PlotData_Correct, + \@PlotData_Incorrect); } - unless(untie(%cache)) { - $r->print('Can not untie hash.'); - $r->rflush(); - } - - &Apache::lonhtmlcommon::Close_PrgWin($r); + return $html; +} -### jason code for checing is there data in cache -# my $error = -# &Apache::loncoursedata::DownloadStudentCourseDataSeparate($students, -# 'true', -# $cacheDB, -# 'true', -# 'true', -# $courseID, -# $r, $c); -# if($error ne 'OK') { -# $r->print($error.'
Error downloading course data
'); -# return; -# } +sub RR_Tries_Concept_Analysis { + my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_; + my $html; + return $html; +} - unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { - $Str .= 'Unable to tie database.'; - $r->print($Str); - return; - } +sub RR_Time_Foil_Analysis { + my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_; + my $html; + return $html; +} - my ($problemId, $part, $responseId)=split(':',$cache{'AnalyzeInfo'}); - my $uri = $cache{$problemId.':source'}; - my $problem = $cache{$problemId.':problem'}; - my $title = $cache{$problemId.':title'}; - my $interval = $cache{'Interval'}; - my $heading = 'Restore this particular Option Response Problem '. - 'Results, Please wait...'; +sub RR_Time_Concept_Analysis { + my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_; + my $html; + return $html; +} - my %ConceptData; - $ConceptData{"Interval"} = $interval; - #Initialize the option response true answers - my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem, - $students->[0], $courseID); - if(defined($analyzeData->{'error'})) { - $Str .= $analyzeData->{'error'}.'
Incorrect part requested.
'; - $r->print($Str); - return; +sub get_Radio_problem_data { + my ($url) = @_; + my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze')); + (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2); + my %Answer = &Apache::lonnet::str2hash($Answ); + my %Partdata; + foreach my $part (@{$Answer{'parts'}}) { + while (my($key,$value) = each(%Answer)) { +# if (ref($value) eq 'ARRAY') { +# &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value)); +# } else { +# &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value); +# } + next if ($key !~ /^$part/); + $key =~ s/^$part\.//; + if ($key eq 'foils') { + $Partdata{$part}->{'_Foils'}=$value; + } elsif ($key eq 'options') { + $Partdata{$part}->{'_Options'}=$value; + } elsif ($key eq 'shown') { + $Partdata{$part}->{'_Shown'}=$value; + } elsif ($key =~ /^foil.value.(.*)$/) { + $Partdata{$part}->{$1}->{'value'}=$value; + } elsif ($key =~ /^foil.text.(.*)$/) { + $Partdata{$part}->{$1}->{'text'}=$value; + } + } } - - $r->print($Str); - $Str = ''; - if($c->aborted()) { untie(%cache); return; } - - #compute the intervals - &Interval($part, $problem, $interval, $analyzeData->{'concepts'}, - \%ConceptData); - - $title =~ s/\ /"_"/eg; - $Str .= '
'.$uri.''; - - $r->print($Str); - $Str = ''; - if($c->aborted()) { untie(%cache); return; } - - &Apache::lonhtmlcommon::Create_PrgWin($r, $title, $heading); - - my $count=0; - #Java script Progress window - for(my $index=0; $index<(scalar @$students); $index++) { - if($c->aborted()) { untie(%cache); return; } - $count++; - my $displayString = $count.'/'.$studentCount.': '.$_; - &Apache::lonhtmlcommon::Update_PrgWin($displayString, $r); - &OpStatus($problemId, $students->[$index], \%ConceptData, - $analyzeData->{'foil_to_concept'}, $analyzeData, - \%cache, $courseID); - } - &Apache::lonhtmlcommon::Close_PrgWin($r); - - $Str .= '
'; - for (my $k=0; $k<$interval; $k++ ) { - if($c->aborted()) { untie(%cache); return $Str; } - $Str .= &DrawGraph($k, $title, $analyzeData->{'concepts'}, - \%ConceptData); - $r->print($Str); - $Str = ''; - } - for (my $k=0; $k<$interval; $k++ ) { - if($c->aborted()) { untie(%cache); return $Str; } - $Str .= &DrawTable($k, $analyzeData->{'concepts'}, \%ConceptData); - $r->print($Str); - $Str = ''; - } - my $Answ=&Apache::lonnet::ssi($uri); - $Str .= '
Here you can see the Problem:
'.$Answ; - $Str .= '
'; - $r->print($Str); - - untie(%cache); - - return; + return %Partdata; } -#---- Problem Analysis Web Page ---------------------------------------------- +######################################################### +######################################################### +## +## Option Response Routines +## +######################################################### +######################################################### +sub OptionResponseAnalysis { + my ($r,$problem,$ProblemData,$Students) = @_; + my ($resource,$respid) = ($problem->{'resource'}, + $problem->{'respid'}); + # Note: part data is not needed. + my $PerformanceData = + &Apache::loncoursedata::get_response_data + ($Students,$resource->{'symb'},$respid); + if (! defined($PerformanceData) || + ref($PerformanceData) ne 'ARRAY' ) { + $r->print('

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

'); + } else { + $r->rflush(); + if (exists($ENV{'form.ExcelOutput'})) { + my $result = &OR_excel_sheet($r,$resource, + $PerformanceData, + $ProblemData); + $r->print($result); + $r->rflush(); + } else { + if ($ENV{'form.AnalyzeOver'} eq 'Tries') { + my $analysis_html = &OR_tries_analysis($r, + $PerformanceData, + $ProblemData); + $r->print($analysis_html); + $r->rflush(); + } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') { + my $analysis_html = &OR_time_analysis($PerformanceData, + $ProblemData); + $r->print($analysis_html); + $r->rflush(); + } else { + $r->print('

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

'); + } + } + } +} -sub IntervalOptions { - my ($selectedInterval)=@_; +######################################################### +# +# Option Response: Tries Analysis +# +######################################################### +sub OR_tries_analysis { + my ($r,$PerformanceData,$ORdata) = @_; + my $mintries = 1; + my $maxtries = $ENV{'form.NumPlots'}; + my ($table,$Foils,$Concepts) = &build_foil_index($ORdata); + if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) { + $table = '

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

'.$table; + $ENV{'form.AnalyzeAs'} = 'Foils'; + } + my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData, + $mintries,$maxtries); + my $analysis = ''; + if ($ENV{'form.AnalyzeAs'} eq 'Foils') { + $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Foils, + \%ResponseData,$ORdata); + } else { + $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries, + $Concepts,\%ResponseData,$ORdata); + } + $table .= $analysis; + return $table; +} - my $interval = 1; - for(my $n=1; $n<=7; $n++) { - if($selectedInterval == $n) { - $interval = $n; +sub OR_Tries_Foil_Analysis { + my ($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]->{$option}},0); + } else { + if ($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'})); + } + } + } } } - - my $Ptr = ''."\n"; - - return $Ptr; + $analysis_html .= "\n"; + return $analysis_html; } -sub OptionResponseTable { - my ($optionResponses,$cache,$r)=@_; - - my @optionResponses=split(':::', $optionResponses); - my %partCount; - my %sequences; - my @orderedSequences=(); - foreach(@optionResponses) { - my ($sequence, $problemId, $part, undef)=split(':',$_); - $partCount{$problemId.':'.$part}++; - if(!defined($sequences{$sequence})) { - push(@orderedSequences, $sequence); - $sequences{$sequence} = $_; +sub OR_Tries_Concept_Analysis { + my ($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'}); + } + } + } + # 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 { - $sequences{$sequence} .= ':::'.$_; + $count = $count.' submissions'; } + $title = 'Attempt '.$i.', '.$count; + my $graphlink = &Apache::loncommon::DrawBarGraph + ($title,'Concept Number','Percent Correct', + 100,$plotcolors,undef,$PlotData[$i]->{'_correct'}); + $analysis_html.= '\n"; } + $analysis_html .= "
'.$graphlink."
\n"; + return $analysis_html; +} - my $Str = ''; +sub OR_analyze_by_tries { + my ($r,$PerformanceData,$mintries,$maxtries) = @_; + my %Trydata; + $mintries = 1 if (! defined($mintries) || $mintries < 1); + $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries); + foreach my $row (@$PerformanceData) { + next if (! defined($row)); + my $tries = &get_tries_from_row($row); + my %Row = &Process_OR_Row($row); + next if (! %Row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $Trydata{$foilid}->[$tries] += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $Trydata{$foilid}->[$tries]->{$option}+=$value; + } + } + } + return %Trydata; +} - foreach my $sequence (@orderedSequences) { - my @optionProblems = split(':::', $sequences{$sequence}); +######################################################### +# +# Option Response: Time Analysis +# +######################################################### +sub OR_time_analysis { + my ($PerformanceData,$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); + # + $table .= "\n"; + 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); + 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); + $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear); + $endtime = $starttime + $sec_in_day; + if ($i == ($num_plots -1 )) { + $starttime = &get_time_from_row($PerformanceData->[0]); + } + } + my $startdateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','startdate_'.$i,$starttime); + my $enddateform = &Apache::lonhtmlcommon::date_setter + ('Statistics','enddate_'.$i,$endtime); + # + my $begin_index; + my $end_index; + my $j; + while (++$j < scalar(@$PerformanceData)) { + last if (&get_time_from_row($PerformanceData->[$j]) + > $starttime); + } + $begin_index = $j; + while (++$j < scalar(@$PerformanceData)) { + last if (&get_time_from_row($PerformanceData->[$j]) > $endtime); + } + $end_index = $j; + ## + my $interval = { + begin_index => $begin_index, + end_index => $end_index, + startdateform => $startdateform, + enddateform => $enddateform, + }; + if ($ENV{'form.AnalyzeAs'} eq 'Foils') { + $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils, + $interval); + } else { + $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata, + $Concepts,$interval); + } + } + # + return $table; +} - $Str .= ''.$cache->{$sequence.':title'}.''."\n"; - $Str .= "
"; - $Str .= ''."\n"; - - my $count = 1; - foreach(@optionProblems) { - my (undef, $problemId, $part, $response)= - split(':',$optionProblems[$count-1]); -# split(':',$sequences{$sequence}); - my $uri = $cache->{$problemId.':source'}; - my $title = $cache->{$problemId.':title'}; - - my $Temp = ''.$title.''; - $Str .= ''; - $Str .= ''; - $Str .= ''; - $Str .= ''; - if($partCount{$problemId.':'.$part} < 2) { - $Str .= ''."\n"; +sub OR_Foil_Time_Analysis { + my ($PerformanceData,$ORdata,$Foils,$interval) = @_; + 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($row)); + my %Row = &Process_OR_Row($row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $TimeData{$foilid} += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $TimeData{$foilid}->{$option}+=$value; + } + } + } + my @Plotdata; + foreach my $foil (@$Foils) { + my $total = $TimeData{$foil}->{'_total'}; + if ($total == 0) { + push(@{$Plotdata[0]},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 { - my $value = $problemId.':'.$part.':'.$response; - $Str .= ''."\n"; + push(@{$Plotdata[$optionidx]}, + 100 * $TimeData{$foil}->{$option} / $total_incorrect); } - $count++; + } continue { + $optionidx++; } - $Str .= '
\# Problem Title Resource Analysis
'.$count.' '.$Temp.''.$uri.'

'."\n"; } - - return $Str; + # + # 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 $correctplot = &Apache::loncommon::DrawBarGraph($title, + 'Foil Number', + 'Percent Correct', + 100, + $plotcolors, + undef, + $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 $incorrectplot = &Apache::loncommon::DrawBarGraph($title, + 'Foil Number', + 'Incorrect Option Choice', + 100, + $plotcolors, + undef, + @Plotdata); + $analysis_html.=''. + ''.$correctplot.''. + ''.$incorrectplot.''. + ''.$foilkey.''."\n"; + $analysis_html.= ''.''. + 'Start Time:'. + '  '.$interval->{'startdateform'}.'
'. + 'End Time  : '. + ' '.$interval->{'enddateform'}.'
'. +# 'Plot Title  :'. +# (" "x3).$interval->{'titleform'}. + ''. + "\n"; + return $analysis_html; } -#---- END Problem Analysis Web Page ------------------------------------------ +sub OR_Concept_Time_Analysis { + my ($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($row)); + my %Row = &Process_OR_Row($row); + while (my ($foilid,$href) = each(%Row)) { + if (! ref($href)) { + $TimeData{$foilid} += $href; + next; + } + while (my ($option,$value) = each(%$href)) { + $TimeData{$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'}; + } + if ($total == 0) { + push(@Plotdata,0); + } else { + push(@Plotdata,100 * $correct / $total); + } + } + # + # Create the plot + my $title = ($end_index - $begin_index).' submissions'; + my $correctplot = &Apache::loncommon::DrawBarGraph($title, + 'Concept Number', + 'Percent Correct', + 100, + $plotcolors, + undef, + \@Plotdata); + $analysis_html.=''. + ''.$correctplot.''. + ''. + 'Start Time:  '.$interval->{'startdateform'}.'
'. + 'End Time  : '. + ' '.$interval->{'enddateform'}.'
'. +# 'Plot Title  :'.(" "x3). +# $interval->{'titleform'}. + ''. + "\n"; + return $analysis_html; +} -#---- Analyze Web Page ------------------------------------------------------- +######################################################### +######################################################### +## +## Excel output +## +######################################################### +######################################################### +sub OR_excel_sheet { + my ($r,$resource,$PerformanceData,$ORdata) = @_; + my $response = ''; + my (undef,$Foils,$Concepts) = &build_foil_index($ORdata); + # + # Create excel worksheet + my $filename = '/prtspool/'. + $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. + time.'_'.rand(1000000000).'.xls'; + my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename); + if (! defined($workbook)) { + $r->log_error("Error creating excel spreadsheet $filename: $!"); + $r->print('

'.&mt("Unable to create new Excel file. ". + "This error has been logged. ". + "Please alert your LON-CAPA administrator"). + '

'); + return undef; + } + # + $workbook->set_tempdir('/home/httpd/perl/tmp'); + # + # Define some potentially useful formats + my $format; + $format->{'header'} = $workbook->add_format(bold => 1, + bottom => 1, + align => 'center'); + $format->{'bold'} = $workbook->add_format(bold=>1); + $format->{'h1'} = $workbook->add_format(bold=>1, size=>18); + $format->{'h2'} = $workbook->add_format(bold=>1, size=>16); + $format->{'h3'} = $workbook->add_format(bold=>1, size=>14); + $format->{'date'} = $workbook->add_format(num_format=> + 'mmm d yyyy hh:mm AM/PM'); + # + # Create and populate main worksheets + my $problem_data_sheet = $workbook->addworksheet('Problem Data'); + my $student_data_sheet = $workbook->addworksheet('Student Data'); + my $response_data_sheet = $workbook->addworksheet('Response Data'); + foreach my $sheet ($problem_data_sheet,$student_data_sheet, + $response_data_sheet) { + $sheet->write(0,0,$resource->{'title'},$format->{'h2'}); + $sheet->write(1,0,$resource->{'src'},$format->{'h3'}); + } + # + my $result; + $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format, + $Concepts,$ORdata); + if ($result ne 'okay') { + # Do something useful + } + $result = &OR_build_student_data_worksheet($student_data_sheet,$format); + if ($result ne 'okay') { + # Do something useful + } + $result = &OR_build_response_data_worksheet($response_data_sheet,$format, + $PerformanceData,$Foils, + $ORdata); + if ($result ne 'okay') { + # Do something useful + } + $response_data_sheet->activate(); + # + # Close the excel file + $workbook->close(); + # + # Write a link to allow them to download it + $result .= '

'.&mt('Excel Raw Data Output').'

'. + '

'. + &mt('Your Excel spreadsheet.'). + '

'."\n"; + return $result; +} -# Joson code for reading data from cache -=pod -sub OpStatus { - my ($problemID, $student, $ConceptData, $foil_to_concept, - $analyzeData, $cache)=@_; - - my $ids = $analyzeData->{'parts'}; - - my @True = (); - my @False = (); - my $flag=0; - - my $tries=0; - - foreach my $id (@$ids) { - my ($part, $response) = split(/\./, $id); - my $time=$cache->{$student.':'.$problemID.':'.$part.':timestamp'}; - my @submissions = split(':::', $cache->{$student.':'.$problemID.':'. - $part.':'.$response. - ':submission'}); - foreach my $Resp (@submissions) { - my %submission=&Apache::lonnet::str2hash($Resp); - foreach (keys(%submission)) { - if($submission{$_}) { - my $answer = $analyzeData->{$id.'.foil.value.'.$_}; - if($submission{$_} eq $answer) { - &Decide("true", $foil_to_concept->{$_}, - $time, $ConceptData); - } else { - &Decide("false", $foil_to_concept->{$_}, - $time, $ConceptData); - } - } - } +sub OR_build_problem_data_worksheet { + my ($worksheet,$format,$Concepts,$ORdata) = @_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'}); + ## + ## + my @Headers; + if (@$Concepts > 1) { + @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber", + 'Foil Name','Foil Text','Correct value'); + } else { + @Headers = ('Foil Number','FoilName','Foil Text','Correct value'); + } + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + my %Foildata = %{$ORdata->{'_Foils'}}; + my $conceptindex = 1; + my $foilindex = 1; + foreach my $concept (@$Concepts) { + my @FoilsInConcept = @{$concept->{'foils'}}; + my $firstfoil = shift(@FoilsInConcept); + if (@$Concepts > 1) { + $worksheet->write_row($rows_output++,0, + [$conceptindex, + $concept->{'name'}, + $foilindex++, + $Foildata{$firstfoil}->{'name'}, + $Foildata{$firstfoil}->{'text'}, + $Foildata{$firstfoil}->{'value'},]); + } else { + $worksheet->write_row($rows_output++,0, + [ $foilindex++, + $Foildata{$firstfoil}->{'name'}, + $Foildata{$firstfoil}->{'text'}, + $Foildata{$firstfoil}->{'value'},]); } + foreach my $foilid (@FoilsInConcept) { + if (@$Concepts > 1) { + $worksheet->write_row($rows_output++,0, + ['', + '', + $foilindex, + $Foildata{$foilid}->{'name'}, + $Foildata{$foilid}->{'text'}, + $Foildata{$foilid}->{'value'},]); + } else { + $worksheet->write_row($rows_output++,0, + [$foilindex, + $Foildata{$foilid}->{'name'}, + $Foildata{$foilid}->{'text'}, + $Foildata{$foilid}->{'value'},]); + } + } continue { + $foilindex++; + } + } continue { + $conceptindex++; + } + $rows_output++; + $rows_output++; + ## + ## Option data output + $worksheet->write($rows_output++,0,'Options',$format->{'header'}); + foreach my $string (@{$ORdata->{'_Options'}}) { + $worksheet->write($rows_output++,0,$string); } + return 'okay'; +} +sub OR_build_student_data_worksheet { + my ($worksheet,$format) = @_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'}); + my @Headers = ('full name','username','domain','section', + "student\nnumber",'identifier'); + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + my @Students = @Apache::lonstatistics::Students; + my $studentrows = &Apache::loncoursedata::get_student_data(\@Students); + my %ids; + foreach my $row (@$studentrows) { + my ($mysqlid,$student) = @$row; + $ids{$student}=$mysqlid; + } + foreach my $student (@Students) { + my $name_domain = $student->{'username'}.':'.$student->{'domain'}; + $worksheet->write_row($rows_output++,0, + [$student->{'fullname'}, + $student->{'username'},$student->{'domain'}, + $student->{'section'},$student->{'id'}, + $ids{$name_domain}]); + } return; } -=cut +sub OR_build_response_data_worksheet { + my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_; + my $rows_output = 3; + my $cols_output = 0; + $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'}); + $worksheet->set_column(1,1,20); + $worksheet->set_column(2,2,13); + my @Headers = ('identifier','time','award detail','attempt'); + foreach my $foil (@$Foils) { + push (@Headers,$foil.' submission'); + push (@Headers,$foil.' grading'); + } + $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'}); + # + foreach my $row (@$PerformanceData) { + next if (! defined($row)); + my ($student,$award,$grading,$submission,$time,$tries) = @$row; + my @Foilgrades = split('&',$grading); + my @Foilsubs = split('&',$submission); + my %ResponseData; + for (my $j=0;$j<=$#Foilgrades;$j++) { + my ($foilid,$correct) = split('=',$Foilgrades[$j]); + my (undef,$submission) = split('=',$Foilsubs[$j]); + $submission = &Apache::lonnet::unescape($submission); + $ResponseData{$foilid.' submission'}=$submission; + $ResponseData{$foilid.' award'}=$correct; + } + $worksheet->write($rows_output,$cols_output++,$student); + $worksheet->write($rows_output,$cols_output++, + &calc_serial($time),$format->{'date'}); + $worksheet->write($rows_output,$cols_output++,$award); + $worksheet->write($rows_output,$cols_output++,$tries); + foreach my $foilid (@$Foils) { + $worksheet->write($rows_output,$cols_output++, + $ResponseData{$foilid.' submission'}); + $worksheet->write($rows_output,$cols_output++, + $ResponseData{$foilid.' award'}); + } + $rows_output++; + $cols_output = 0; + } + return; +} -#restore the student submissions and finding the result -sub OpStatus { - my ($problemID, $student, $ConceptData, $foil_to_concept, - $analyzeData, $cache, $courseID)=@_; - - my $ids = $analyzeData->{'parts'}; - my ($uname,$udom)=split(/\:/,$student); - my $symb = $cache->{$problemID.':problem'}; - - my @True = (); - my @False = (); - my $flag=0; - my $tries=0; - - foreach my $id (@$ids) { - my ($part, $response) = split(/\./, $id); - my %reshash=&Apache::lonnet::restore($symb,$courseID,$udom,$uname); - if ($reshash{'version'}) { - my $tries=0; - for (my $version=1;$version<=$reshash{'version'};$version++) { - my $time=$reshash{"$version:timestamp"}; - foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) { - if (($key=~/\.(\w+)\.(\w+)\.submission$/)) { - my $Id1 = $1; my $Id2 = $2; - #check if this is a repeat submission, if so skip it - if ($reshash{"$version:resource.$Id1.previous"}) { next; } - #if no solved this wasn't a real submission, ignore it - if (!defined($reshash{"$version:resource.$Id1.solved"})) { - &Apache::lonxml::debug("skipping "); - next; - } - my $Resp = $reshash{"$version:$key"}; - my %submission=&Apache::lonnet::str2hash($Resp); - foreach (keys %submission) { - my $Ansr = $analyzeData->{"$Id1.$Id2.foil.value.$_"}; - if($submission{$_} eq $Ansr) { - &Decide("true", $foil_to_concept->{$_}, - $time, $ConceptData); - } else { - &Decide("false", $foil_to_concept->{$_}, - $time, $ConceptData); - } - } - } - } - } +## +## The following is copied from datecalc1.pl, part of the +## Spreadsheet::WriteExcel CPAN module. +## +## +###################################################################### +# +# Demonstration of writing date/time cells to Excel spreadsheets, +# using UNIX/Perl time as source of date/time. +# +# Copyright 2000, Andrew Benham, adsb@bigfoot.com +# +###################################################################### +# +# UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970) +# measured in seconds. +# +# An Excel file can use exactly one of two different date/time systems. +# In these systems, a floating point number represents the number of days +# (and fractional parts of the day) since a start point. The floating point +# number is referred to as a 'serial'. +# The two systems ('1900' and '1904') use different starting points: +# '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as +# a leap year - see: +# http://support.microsoft.com/support/kb/articles/Q181/3/70.asp +# for the excuse^H^H^H^H^H^Hreason. +# '1904'; '1.00' is 2 Jan 1904. +# +# The '1904' system is the default for Apple Macs. Windows versions of +# Excel have the option to use the '1904' system. +# +# Note that Visual Basic's "DateSerial" function does NOT erroneously +# regard 1900 as a leap year, and thus its serials do not agree with +# the 1900 serials of Excel for dates before 1 Mar 1900. +# +# Note that StarOffice (at least at version 5.2) does NOT erroneously +# regard 1900 as a leap year, and thus its serials do not agree with +# the 1900 serials of Excel for dates before 1 Mar 1900. +# +###################################################################### +# +# Calculation description +# ======================= +# +# 1900 system +# ----------- +# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900. +# Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) +# were leap years with an extra day. +# Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and +# 1 Jan 1970. +# In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year +# 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'. +# +# 1904 system +# ----------- +# Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904. +# Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68) +# were leap years with an extra day. +# Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and +# 1 Jan 1970. +# In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'. +# +###################################################################### +# +# Copyright (c) 2000, Andrew Benham. +# This program is free software. It may be used, redistributed and/or +# modified under the same terms as Perl itself. +# +# Andrew Benham, adsb@bigfoot.com +# London, United Kingdom +# 11 Nov 2000 +# +###################################################################### + +# Use 1900 date system on all platforms other than Apple Mac (for which +# use 1904 date system). +my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0; + +#----------------------------------------------------------- +# calc_serial() +# +# Called with (up to) 2 parameters. +# 1. Unix timestamp. If omitted, uses current time. +# 2. GMT flag. Set to '1' to return serial in GMT. +# If omitted, returns serial in appropriate timezone. +# +# Returns date/time serial according to $DATE_SYSTEM selected +#----------------------------------------------------------- +sub calc_serial { + my $time = (defined $_[0]) ? $_[0] : time(); + my $gmtflag = (defined $_[1]) ? $_[1] : 0; + + # Divide timestamp by number of seconds in a day. + # This gives a date serial with '0' on 1 Jan 1970. + my $serial = $time / 86400; + + # Adjust the date serial by the offset appropriate to the + # currently selected system (1900/1904). + if ($DATE_SYSTEM == 0) { # use 1900 system + $serial += 25569; + } else { # use 1904 system + $serial += 24107; } - } - return; + unless ($gmtflag) { + # Now have a 'raw' serial with the right offset. But this + # gives a serial in GMT, which is false unless the timezone + # is GMT. We need to adjust the serial by the appropriate + # timezone offset. + # Calculate the appropriate timezone offset by seeing what + # the differences between localtime and gmtime for the given + # time are. + + my @gmtime = gmtime($time); + my @ltime = localtime($time); + + # For the first 7 elements of the two arrays, adjust the + # date serial where the elements differ. + for (0 .. 6) { + my $diff = $ltime[$_] - $gmtime[$_]; + if ($diff) { + $serial += _adjustment($diff,$_); + } + } + } + + # Perpetuate the error that 1900 was a leap year by decrementing + # the serial if we're using the 1900 system and the date is prior to + # 1 Mar 1900. This has the effect of making serial value '60' + # 29 Feb 1900. + + # This fix only has any effect if UNIX/Perl time on the platform + # can represent 1900. Many can't. + + unless ($DATE_SYSTEM) { + $serial-- if ($serial < 61); # '61' is 1 Mar 1900 + } + return $serial; } +sub _adjustment { + # Based on the difference in the localtime/gmtime array elements + # number, return the adjustment required to the serial. + + # We only look at some elements of the localtime/gmtime arrays: + # seconds unlikely to be different as all known timezones + # have an offset of integral multiples of 15 minutes, + # but it's easy to do. + # minutes will be different for timezone offsets which are + # not an exact number of hours. + # hours very likely to be different. + # weekday will differ when localtime/gmtime difference + # straddles midnight. + # + # Assume that difference between localtime and gmtime is less than + # 5 days, then don't have to do maths for day of month, month number, + # year number, etc... + + my ($delta,$element) = @_; + my $adjust = 0; + + if ($element == 0) { # Seconds + $adjust = $delta/86400; # 60 * 60 * 24 + } elsif ($element == 1) { # Minutes + $adjust = $delta/1440; # 60 * 24 + } elsif ($element == 2) { # Hours + $adjust = $delta/24; # 24 + } elsif ($element == 6) { # Day of week number + # Catch difference straddling Sat/Sun in either direction + $delta += 7 if ($delta < -4); + $delta -= 7 if ($delta > 4); -sub DrawGraph { - my ($k,$Src,$Concepts,$ConceptData)=@_; - my $Max=0; - my @data1; - my @data2; - - # Adjust Data and find the Max - for (my $n=0; $n<(scalar @$Concepts); $n++ ) { - my $tmp=$Concepts->[$n]; - $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'}; - $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'}; - my $Sum=$data1[$n]+$data2[$n]; - if($Max < $Sum) { - $Max=$Sum; - } - } - for (my $n=0; $n<(scalar @$Concepts); $n++ ) { - if ($data1[$n]+$data2[$n]<$Max) { - $data2[$n]+=$Max-($data1[$n]+$data2[$n]); - } - } - my $P_No = (scalar @data1); - - if($Max > 1) { - $Max += (10 - $Max % 10); - $Max = int($Max); + $adjust = $delta; + } + return $adjust; +} + +sub build_foil_index { + my ($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})) { + $a = $Numbers{$a1}; + } + if (exists($Numbers{$b1})) { + $b = $Numbers{$b1}; + } + if (($a =~/^\d+$/) && ($b =~/^\d+$/)) { + return $a <=> $b; + } else { + return $a cmp $b; + } + }; + 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}})); + } + # + # Build up the table of row labels. + my $table = ''."\n"; + if (@Concepts > 1) { + $table .= ''. + ''. + ''. + ''. + ''. + ''. + ''. + "\n"; } else { - $Max = 1; + $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"; + } + foreach my $foilid (@FoilsInConcept) { + if (@Concepts > 1) { + $table .= ''. + ''. + ''. + ''. + ''. + ''. + ''. + "\n"; + } else { + $table .= ''. + ''. + ''. + ''. + ''. + "\n"; + } + } continue { + $foilindex++; + } + } continue { + $conceptindex++; } + $table .= "
'.&mt('Concept Number').''.&mt('Concept').''.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.&mt('Foil Number').''.&mt('Foil Name').''.&mt('Foil Text').''.&mt('Correct Value').'
'.$conceptindex.''.&HTML::Entities::encode($concept->{'name'}).''.$foilindex++.''.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).''.$Foildata{$firstfoil}->{'text'}.''.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'
'.$foilindex++.''.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).''.$Foildata{$firstfoil}->{'text'}.''.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'
'.$foilindex.''.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).''.$Foildata{$foilid}->{'text'}.''.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'
'.$foilindex.''.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).''.$Foildata{$foilid}->{'text'}.''.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'
\n"; + # + # Build option index with color stuff + return ($table,\@Foils,\@Concepts); +} + +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"); + } + shift(@Rows); # Throw away 'correct option chosen' color + $table .= join('',reverse(@Rows)); + $table .= "
'. + (' 'x4).''.&HTML::Entities::encode($option).'
\n"; +} - my $Titr=($ConceptData->{'Interval'}>1) ? $Src.'_interval_'.($k+1) : $Src; -# $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2; - my $GData = ''; - $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&'; - $GData .= (join(',',@data1)).'&'.(join(',',@data2)); - - return ''; -} - -sub DrawTable { - my ($k,$Concepts,$ConceptData)=@_; - my $Max=0; - my @data1; - my @data2; - my $Correct=0; - my $Wrong=0; - for(my $n=0; $n<(scalar @$Concepts); $n++ ) { - my $tmp=$Concepts->[$n]; - $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'}; - $Correct+=$data1[$n]; - $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'}; - $Wrong+=$data2[$n]; - my $Sum=$data1[$n]+$data2[$n]; - if($Max < $Sum) { - $Max=$Sum; - } - } - for(my $n=0; $n<(scalar @$Concepts); $n++ ) { - if ($data1[$n]+$data2[$n]<$Max) { - $data2[$n]+=$Max-($data1[$n]+$data2[$n]); - } +######################################################### +######################################################### +## +## Generic Interface Routines +## +######################################################### +######################################################### +sub CreateInterface { + ## + ## Environment variable initialization + if (! exists$ENV{'form.AnalyzeOver'}) { + $ENV{'form.AnalyzeOver'} = 'Tries'; } - my $P_No = (scalar @data1); + ## + ## Build the menu my $Str = ''; -# $Str .= '
From: ['.localtime($ConceptData->{'Int.'.($k-1)}); -# $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']'; - $Str .= "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''. - "\n".''; - - for(my $n=0; $n<(scalar @$Concepts); $n++ ) { - $Str .= ''."\n"; - $Str .= ''."\n"; - my ($currentConcept) = split('::',$Concepts->[$n]); - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - $Str .= ''."\n"; - } - $Str .= ''; + $Str .= '
# Concept Correct Wrong
'.($n+1).''.$currentConcept; - $Str .= ''.$data1[$n].''.$data2[$n].'
From:['.localtime($ConceptData->{'Int.'.$k}); - $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1); - $Str .= ']'.$Correct.''.$Wrong.'
'."\n"; + $Str .= ''; + $Str .= ''; + $Str .= ''; +# $Str .= ''; + $Str .= ''; + $Str .= ''."\n"; + ## + ## + $Str .= ''; + # + $Str .= ''; + # +# $Str .= ''; + ## + ## + $Str .= ''."\n"; $Str .= '
'.&mt('Sections').''.&mt('Enrollment Status').''.&mt('Sequences and Folders').' 
'."\n"; + $Str .= &Apache::lonstatistics::SectionSelect('Section','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 .= &Apache::loncommon::help_open_topic + ('Analysis_Analyze_Over'); + $Str .=''; + $Str .= '
'; + } + { + $Str .= ''.&mt('Analyze as '); + $Str .= &Apache::loncommon::help_open_topic + ('Analysis_Analyze_as'); + $Str .='
'; + } + { + $Str .= '
'.&mt('Number of Plots:'); + $Str .= &Apache::loncommon::help_open_topic + ('Analysis_num_plots'); + $Str .= ''; + } + } + $Str .= '
'."\n"; - return $Str; -#$Apache::lonxml::debug=1; -#&Apache::lonhomework::showhash(%ConceptData); -#$Apache::lonxml::debug=0; -} - -#---- END Analyze Web Page ---------------------------------------------- - -sub Decide { - #deciding the true or false answer belongs to each interval - my ($type,$concept,$time,$ConceptData)=@_; - my $k=0; - while($time > $ConceptData->{'Int.'.($k+1)} && - $k < $ConceptData->{'Interval'}) { - $k++; +} + +######################################################### +######################################################### +## +## Misc Option Response functions +## +######################################################### +######################################################### +sub get_time_from_row { + my ($row) = @_; + if (ref($row)) { + return $row->[&Apache::loncoursedata::RD_timestamp()]; + } + return undef; +} + +sub get_tries_from_row { + my ($row) = @_; + if (ref($row)) { + return $row->[&Apache::loncoursedata::RD_tries()]; } - $ConceptData->{$concept.'.'.$k.'.'.$type}++; + return undef; +} - return; +sub hashify_attempt { + my ($row) = @_; + my %attempt; + $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()]; + $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()]; + $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()]; + $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()]; + return %attempt; } -sub InitAnalysis { - my ($uri,$part,$responseId,$problem,$student,$courseID)=@_; - my ($name,$domain)=split(/\:/,$student); - - my %analyzeData; - # Render the student's view of the problem. $Answ is the problem - # Stringafied - my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze', - 'grade_username' => $name, - 'grade_domain' => $domain, - 'grade_courseid' => $courseID, - 'grade_symb' => $problem)); - my ($Answer)=&Apache::lonnet::str2hashref($Answ); - - my $found = 0; - my @parts=(); - if(defined($responseId)) { - foreach (@{$Answer->{'parts'}}) { - if($_ eq $part.'.'.$responseId) { - push(@parts, $_); - $found = 1; - last; - } - } - } else { - foreach (@{$Answer->{'parts'}}) { - if($_ =~ /$part/) { - push(@parts, $_); - $found = 1; - last; - } +sub Process_OR_Row { + my ($row) = @_; + my %RowData; + 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 ($award =~ /(APPROX_ANS|EXACT_ANS)/) { + $RowData{'_correct'} = 1; + } + $RowData{'_total'} = 1; + my @Foilgrades = split('&',$grading); + my @Foilsubs = split('&',$submission); + for (my $j=0;$j<=$#Foilgrades;$j++) { + my ($foilid,$correct) = split('=',$Foilgrades[$j]); + $foilid = &Apache::lonnet::unescape($foilid); + my (undef,$submission) = split('=',$Foilsubs[$j]); + if ($correct) { + $RowData{$foilid}->{'_correct'}++; + } else { + $submission = &Apache::lonnet::unescape($submission); + $RowData{$foilid}->{$submission}++; } + $RowData{$foilid}->{'_total'}++; } + return %RowData; +} - if($found == 0) { - $analyzeData{'error'} = 'No parts matching selected values'; - return \%analyzeData; - } - - my @Concepts=(); - my %foil_to_concept; - foreach my $currentPart (@parts) { - if(defined($Answer->{$currentPart.'.concepts'})) { - foreach my $concept (@{$Answer->{$currentPart.'.concepts'}}) { - push(@Concepts, $concept); - foreach my $foil (@{$Answer->{$currentPart.'.concept.'. - $concept}}) { - $analyzeData{$currentPart.'.foil.value.'.$foil} = - $Answer->{$currentPart.'.foil.value.'.$foil}; - $foil_to_concept{$foil} = $concept; + +sub analyze_problem_as_student { + my ($resource,$sname,$sdom,$partid,$respid) = @_; + my $url = $resource->{'src'}; + my $symb = $resource->{'symb'}; + my $courseid = $ENV{'request.course.id'}; + my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze', + 'grade_domain' => $sdom, + 'grade_username' => $sname, + 'grade_symb' => $symb, + 'grade_courseid' => $courseid)); + (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2); + my %Answer=&Apache::lonnet::str2hash($Answ); + my $key = $partid.'.'.$respid.'.answer'; + my $student_answer = $Answer{$key}->[0]; + if (! defined($student_answer)) { + $student_answer = $Answer{$key}->[1]; + } + return ($student_answer); +} + +## +## get problem data and put it into a useful data structure. +## note: we must force each foil and option to not begin or end with +## spaces as they are stored without such data. +## +sub get_problem_data { + my ($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)) { + # + # Logging code: + if (0) { + &Apache::lonnet::logthis($part.' got key "'.$key.'"'); + if (ref($value) eq 'ARRAY') { + &Apache::lonnet::logthis(' '.join(',',@$value)); + } else { + &Apache::lonnet::logthis(' '.$value); } } - } else { - foreach (keys(%$Answer)) { - if(/$currentPart.foil\.value\.(.*)$/) { - push(@Concepts, $1); - $foil_to_concept{$1} = $1; - $analyzeData{$currentPart.'.foil.value.'.$1} = - $Answer->{$currentPart.'.foil.value.'.$1}; + # End of logging code + next if ($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'}= + $concept; + } + } elsif ($key =~ /^(incorrect|answer|ans_low|ans_high)$/) { + $Partdata{$part}->{$key}=$value; + } + } else { + if ($key=~ /^foil\.text\.(.*)$/) { + my $foil = $1; + $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil; + $value =~ s/(\s*$|^\s*)//g; + $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value; + } elsif ($key =~ /^foil\.value\.(.*)$/) { + my $foil = $1; + $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value; } } } } - - $analyzeData{'parts'} = \@parts; - $analyzeData{'concepts'} = \@Concepts; - $analyzeData{'foil_to_concept'} = \%foil_to_concept; - - return \%analyzeData; -} - -sub Interval { - my ($part,$symb,$interval,$Concepts,$ConceptData)=@_; - my $Int=$interval; - my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb); - my $opn = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb); - my $add=int(($due-$opn)/$Int); - $ConceptData->{'Int.0'}=$opn; - for(my $i=1; $i<$Int; $i++) { - $ConceptData->{'Int.'.$i}=$opn+$i*$add; - } - $ConceptData->{'Int.'.$Int}=$due; - for(my $i=0; $i<$Int; $i++) { - for(my $n=0; $n<(scalar @$Concepts); $n++ ) { - my $tmp=$Concepts->[$n]; - $ConceptData->{$tmp.'.'.$i.'.true'}=0; - $ConceptData->{$tmp.'.'.$i.'.false'}=0; - } - } + return %Partdata; } + 1; + __END__