loncom/interface/statistics/lonproblemanalysis.pm - diff

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Diff for /loncom/interface/statistics/lonproblemanalysis.pm between versions 1.49 and 1.69

version 1.49, 2003/11/11 22:14:28	version 1.69, 2004/02/18 17:33:12
Line 33 use Apache::lonhtmlcommon();	Line 33 use Apache::lonhtmlcommon();
use Apache::loncoursedata();	use Apache::loncoursedata();
use Apache::lonstatistics;	use Apache::lonstatistics;
use Apache::lonlocal;	use Apache::lonlocal;
	use Apache::lonstathelpers;
use HTML::Entities();	use HTML::Entities();
use Time::Local();	use Time::Local();
use Spreadsheet::WriteExcel();	use Spreadsheet::WriteExcel();
Line 42 my $plotcolors = ['#33ff00',	Line 43 my $plotcolors = ['#33ff00',
'#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',	'#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
];	];

my @SubmitButtons = ({ name => 'ProblemAnalyis',	my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
	text => 'Previous Problem' },
	{ name => 'ProblemAnalysis',
text => 'Analyze Problem Again' },	text => 'Analyze Problem Again' },
	{ name => 'NextProblemAnalysis',
	text => 'Next Problem' },
	{ name => 'break'},
{ name => 'ClearCache',	{ name => 'ClearCache',
text => 'Clear Caches' },	text => 'Clear Caches' },
{ name => 'updatecaches',	{ name => 'updatecaches',
text => 'Update Student Data' },	text => 'Update Student Data' },
{ name => 'SelectAnother',	{ name => 'SelectAnother',
text => 'Choose a different resource' },	text => 'Choose a different Problem' },
{ name => 'ExcelOutput',	{ name => 'ExcelOutput',
text => 'Produce Excel Output' });	text => 'Produce Excel Output' });

sub render_resource {
my ($resource) = @_;
##
## 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/<\sform\s/<nop /g;
$rendered_problem =~ s\|(<\s/form\s>)\|<\/nop>\|g;
return '<table bgcolor="ffffff"><tr><td>'.
'<base href="'.$base.'" />'.
$rendered_problem.
'</td></tr></table>';
}

sub BuildProblemAnalysisPage {	sub BuildProblemAnalysisPage {
my ($r,$c)=@_;	my ($r,$c)=@_;
Line 86 sub BuildProblemAnalysisPage {	Line 76 sub BuildProblemAnalysisPage {
#	#
&Apache::lonstatistics::PrepareClasslist();	&Apache::lonstatistics::PrepareClasslist();
#	#
$r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');	$r->print('<h2>'.&mt('Detailed Problem Analysis').'</h2>');
$r->print(&CreateInterface());	$r->print(&CreateInterface());
#	#
my @Students = @Apache::lonstatistics::Students;	my @Students = @Apache::lonstatistics::Students;
Line 109 sub BuildProblemAnalysisPage {	Line 99 sub BuildProblemAnalysisPage {
}	}
$r->rflush();	$r->rflush();
#	#
	my $problem_types = '(option\|radiobutton\|numerical)';
if (exists($ENV{'form.problemchoice'}) &&	if (exists($ENV{'form.problemchoice'}) &&
! exists($ENV{'form.SelectAnother'})) {	! exists($ENV{'form.SelectAnother'})) {
foreach my $button (@SubmitButtons) {	foreach my $button (@SubmitButtons) {
$r->print('<input type="submit" name="'.$button->{'name'}.'" '.	if ($button->{'name'} eq 'break') {
'value="'.&mt($button->{'text'}).'" />');	$r->print("<br />\n");
$r->print(' 'x5);	} else {
	$r->print('<input type="submit" name="'.$button->{'name'}.'" '.
	'value="'.&mt($button->{'text'}).'" />');
	$r->print(' 'x5);
	}
}	}
$r->print('<input type="hidden" name="problemchoice" value="'.
$ENV{'form.problemchoice'}.'" />');
#	#
$r->print('<hr />');	$r->print('<hr />');
#
my ($symb,$part,$resid,$resptype) = &get_problem_symb(
&Apache::lonnet::unescape($ENV{'form.problemchoice'}));
$r->rflush();	$r->rflush();
#	#
my $resource = &get_resource_from_symb($symb);	# Determine which problem we are to analyze
if (! defined($resource) \|\| ! defined($resptype)) {	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('<input type="hidden" name="problemchoice" value="'.
	$ENV{'form.problemchoice'}.'" />');
	#
	if (! defined($current_problem->{'resource'})) {
$r->print('resource is undefined');	$r->print('resource is undefined');
} else {	} else {
	my $resource = $current_problem->{'resource'};
$r->print('<h1>'.$resource->{'title'}.'</h1>');	$r->print('<h1>'.$resource->{'title'}.'</h1>');
$r->print('<h3>'.$resource->{'src'}.'</h3>');	$r->print('<h3>'.$resource->{'src'}.'</h3>');
$r->print(&render_resource($resource));	$r->print(&Apache::lonstathelpers::render_resource($resource));
$r->rflush();	$r->rflush();
my %Data = &get_problem_data($resource->{'src'});	my %Data = &get_problem_data($resource->{'src'});
my $ProblemData = $Data{$part.'.'.$resid};	my $ProblemData = $Data{$current_problem->{'part'}.
if ($resptype eq 'option') {	'.'.
&OptionResponseAnalysis($r,$resource,$resid,$ProblemData,	$current_problem->{'respid'}};
	if ($current_problem->{'resptype'} eq 'option') {
	&OptionResponseAnalysis($r,$current_problem,
	$ProblemData,
\@Students);	\@Students);
} elsif ($resptype eq 'radiobutton') {	} elsif ($current_problem->{'resptype'} eq 'radiobutton') {
&RadioResponseAnalysis($r,$resource,$part,$resid,$ProblemData,	&RadioResponseAnalysis($r,$current_problem,
	$ProblemData,
\@Students);	\@Students);
	} elsif ($current_problem->{'resptype'} eq 'numerical') {
	# if (exists($ENV{'form.ExcelOutput'})) {
	&prepare_excel_output($r,$current_problem,
	$ProblemData,\@Students);
	# } else {
	# &NumericalResponseAnalysis($r,$current_problem,
	# $ProblemData,\@Students);
	# }
} else {	} else {
$r->print('<h2>This analysis is not supported</h2>');	$r->print('<h2>This analysis is not supported</h2>');
}	}
Line 151 sub BuildProblemAnalysisPage {	Line 176 sub BuildProblemAnalysisPage {
&mt('Analyze Problem').'" />');	&mt('Analyze Problem').'" />');
$r->print(' 'x5);	$r->print(' 'x5);
$r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');	$r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
$r->print(&ProblemSelector());	$r->print(&Apache::lonstathelpers::ProblemSelector
	($problem_types));
	}
	}


	#########################################################
	#########################################################
	##
	## Excel output of student answers and correct answers
	##
	#########################################################
	#########################################################
	sub prepare_excel_output {
	my ($r,$problem,$ProblemData,$Students) = @_;
	my ($resource,$respid) = ($problem->{'resource'},
	$problem->{'respid'});
	$r->print('<h2>'.
	&mt('Preparing Excel spreadsheet of student responses').
	'</h2>');
	#
	&GetStudentAnswers($r,$problem,$Students);
	#
	my @Columns = ( 'username','domain','attempt','time',
	'submission','correct', 'grading');
	#
	# 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('<p>'.&mt("Unable to create new Excel file. ".
	"This error has been logged. ".
	"Please alert your LON-CAPA administrator").
	'</p>');
	return undef;
	}
	#
	$workbook->set_tempdir('/home/httpd/perl/tmp');
	#
	my $format = &Apache::loncommon::define_excel_formats($workbook);
	my $worksheet = $workbook->addworksheet('Student Submission Data');
	#
	# Put on the standard headers and whatnot
	my $rows_output=0;
	$worksheet->write($rows_output++,0,$resource->{'title'},$format->{'h1'});
	$worksheet->write($rows_output++,0,$resource->{'src'},$format->{'h3'});
	$rows_output++;
	$worksheet->write_row($rows_output++,0,\@Columns,$format->{'bold'});
	#
	# Populate the worksheet with the student data
	foreach my $student (@$Students) {
	# For each attempt
	# write the username, domain, attempt number, timestamp,
	# submission, correct answer, grading
	my $results = &Apache::loncoursedata::get_response_data_by_student
	($student,$resource->{'symb'},$respid);
	if (! defined($results) \|\| ref($results) ne 'ARRAY') {
	my %row;
	$row{'username'} = $student->{'username'};
	$row{'domain'} = $student->{'domain'};
	$row{'correct'} = $student->{'answer'};
	my $cols_output = 0;
	foreach my $col (@Columns) {
	if (! exists($row{$col})) {
	$cols_output++;
	next;
	}
	$worksheet->write($rows_output,$cols_output++,$row{$col});
	}
	$rows_output++;
	} else {
	foreach my $response (@$results) {
	my %row_format;
	my %row;
	#
	# Time is handled differently
	$row{'time'} = &calc_serial(
	$response->[&Apache::loncoursedata::RDs_timestamp()]);
	$row_format{'time'}=$format->{'date'};
	#
	$row{'username'} = $student->{'username'};
	$row{'domain'} = $student->{'domain'};
	$row{'attempt'} = $response->[
	&Apache::loncoursedata::RDs_tries()];
	$row{'submission'} = $response->[
	&Apache::loncoursedata::RDs_submission()];
	$row{'correct'} = $student->{'answer'};
	$row{'grading'} = $response->[
	&Apache::loncoursedata::RDs_awarddetail()];
	my $cols_output = 0;
	foreach my $col (@Columns) {
	$worksheet->write($rows_output,$cols_output++,$row{$col},
	$row_format{$col});
	}
	$rows_output++;
	}
	} # End of else clause on if (! defined($results) ....
	}
	#
	# Close the excel file
	$workbook->close();
	#
	# Write a link to allow them to download it
	$r->print('<p><a href="'.$filename.'">'.
	&mt('Your Excel spreadsheet.').
	'</a></p>'."\n");

	}


	#########################################################
	#########################################################
	##
	## Numerical Response Routines
	##
	#########################################################
	#########################################################
	sub NumericalResponseAnalysis {
	my ($r,$problem,$ProblemData,$Students) = @_;
	$r->print('<h2>This analysis is not yet supported</h2>');
	my ($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 = '<h2>'.
	&mt('There is no submission data for this resource').
	'</h2>';
	$r->print($analysis_html);
	return;
}	}
	my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
	$r->print('Maximum = '.$max.' Minimum = '.$min);
	my $max_students = 0;
	my %Data;
	foreach my $student (@$Students) {
	my $answer = $student->{'answer'};
	$Data{$answer}++;
	if ($max_students < $Data{$answer}) {
	$max_students = $Data{$answer};
	}
	}
	foreach (5,10,20,25,50,75,100,150,200,250,500,1000,1500,2000,2500,5000) {
	if ($max_students < $_) {
	$max_students = $_;
	last;
	}
	}
	my @Labels = sort {$a <=> $b } keys(%Data);
	$r->print('number of labels = '.scalar(@Labels));
	my @PlotData = @Data{@Labels};
	$r->print('number of PlotData = '.scalar(@PlotData));
	my $graph =
	&Apache::loncommon::DrawXYGraph('Correct Answer Distribution',
	'Correct Answer',
	'Number of students',
	$max_students,
	undef,
	\@Labels,
	[\@PlotData],
	(xskip=>10));
	$r->print($graph);
	return;
}	}

=pod	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("<table>\n");
	$r->rflush();
	foreach my $student (@$Students) {
	my $sname = $student->{'username'};
	my $sdom = $student->{'domain'};
	my $answer = &analyze_problem_as_student($resource,
	$sname,$sdom,
	$partid,$respid);
	&Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
	&mt('last student'));
	$student->{'answer'} = $answer;
	}
	$r->print("</table>\n");
	$r->rflush();
	# close progress window
	&Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
	return;
	}

Removed code:	sub build_student_data_worksheet {
	my ($workbook,$format) = @_;
	my $rows_output = 3;
	my $cols_output = 0;
	my $worksheet = $workbook->addworksheet('Student Data');
	$worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
	my @Headers = ('full name','username','domain','section',
	"student\nnumber",'identifier');
	$worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
	my @Students = @Apache::lonstatistics::Students;
	my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
	my %ids;
	foreach my $row (@$studentrows) {
	my ($mysqlid,$student) = @$row;
	$ids{$student}=$mysqlid;
	}
	foreach my $student (@Students) {
	my $name_domain = $student->{'username'}.':'.$student->{'domain'};
	$worksheet->write_row($rows_output++,0,
	[$student->{'fullname'},
	$student->{'username'},$student->{'domain'},
	$student->{'section'},$student->{'id'},
	$ids{$name_domain}]);
	}
	return $worksheet;
	}

#########################################################	#########################################################
#########################################################	#########################################################
Line 167 Removed code:	Line 411 Removed code:
#########################################################	#########################################################
#########################################################	#########################################################
sub RadioResponseAnalysis {	sub RadioResponseAnalysis {
my ($r,$resource,$part,$respid,$ProblemData,$Students) = @_;	my ($r,$problem,$ProblemData,$Students) = @_;
	my ($resource,$respid) = ($problem->{'resource'},
	$problem->{'respid'});
my $analysis_html;	my $analysis_html;
my $PerformanceData =	my $PerformanceData =
&Apache::loncoursedata::get_response_data	&Apache::loncoursedata::get_response_data
Line 181 sub RadioResponseAnalysis {	Line 427 sub RadioResponseAnalysis {
return;	return;
}	}
if (exists($ENV{'form.ExcelOutput'})) {	if (exists($ENV{'form.ExcelOutput'})) {
$analysis_html .= &RR_Excel_output($r,$resource,$PerformanceData,	$analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
$ProblemData);	$PerformanceData,$ProblemData);
} elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {	} elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
$analysis_html .= &RR_Tries_Analysis($r,$resource,$PerformanceData,	$analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
$ProblemData);	$PerformanceData,$ProblemData);
} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {	} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
$analysis_html .= &RR_Time_Analysis($r,$resource,$PerformanceData,	$analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
$ProblemData);	$PerformanceData,$ProblemData);
} else {	} else {
$analysis_html .= '<h2>'.	$analysis_html .= '<h2>'.
&mt('The analysis you have selected is not supported at this time').	&mt('The analysis you have selected is not supported at this time').
Line 197 sub RadioResponseAnalysis {	Line 443 sub RadioResponseAnalysis {
$r->print($analysis_html);	$r->print($analysis_html);
}	}


sub RR_Excel_output {	sub RR_Excel_output {
my ($r,$PerformanceData,$ProblemData) = @_;	my ($r,$PerformanceData,$ProblemData) = @_;
return '<h1>No!</h1>';	return '<h1>No!</h1>';
Line 209 sub RR_Tries_Analysis {	Line 454 sub RR_Tries_Analysis {
my $mintries = 1;	my $mintries = 1;
my $maxtries = $ENV{'form.NumPlots'};	my $maxtries = $ENV{'form.NumPlots'};
my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);	my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {	if ((! defined($Concepts)) \|\| ((@$Concepts < 2) &&
	($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
$table = '<h3>'.	$table = '<h3>'.
&mt('Not enough data for concept analysis. '.	&mt('Not enough data for concept analysis. '.
'Performing Foil Analysis').	'Performing Foil Analysis').
Line 218 sub RR_Tries_Analysis {	Line 464 sub RR_Tries_Analysis {
}	}
$analysis_html .= $table;	$analysis_html .= $table;
my @TryData = &RR_tries_data_analysis($r,$PerformanceData);	my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
if ($ENV{'form.AnalyzeAs'} eq 'Foils') {	# if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
$analysis_html = &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,	$analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
\@TryData,$ProblemData);	\@TryData,$ProblemData);
} else {	# } else {
$analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,	# $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
$Concepts,	# $Concepts,
\@TryData,	# \@TryData,
$ProblemData);	# $ProblemData);
}	# }
return $analysis_html;	return $analysis_html;
}	}

Line 256 sub RR_Tries_Foil_Analysis {	Line 502 sub RR_Tries_Foil_Analysis {
my @PlotData_Correct;	my @PlotData_Correct;
my @PlotData_Incorrect;	my @PlotData_Incorrect;
next if ($try > scalar(@{$TryData}));	next if ($try > scalar(@{$TryData}));
next if (! defined($TryData->[$try-1]));	next if (! defined($TryData->[$try]));
my %DataSet = %{$TryData->[$try-1]};	my %DataSet = %{$TryData->[$try]};
my $total = 0;	my $total = 0;
foreach my $foilid (@$Foils) {	foreach my $foilid (@$Foils) {
$total += $DataSet{$foilid};	$total += $DataSet{$foilid};
Line 285 sub RR_Tries_Foil_Analysis {	Line 531 sub RR_Tries_Foil_Analysis {
'Percent Choosing',	'Percent Choosing',
100,	100,
['#33ff00','#ff3300'],	['#33ff00','#ff3300'],
	undef,
\@PlotData_Correct,	\@PlotData_Correct,
\@PlotData_Incorrect);	\@PlotData_Incorrect);
}	}
&Apache::lonnet::logthis('plot = '.$html);
return $html;	return $html;
}	}

Line 311 sub RR_Time_Concept_Analysis {	Line 557 sub RR_Time_Concept_Analysis {
}	}



sub get_Radio_problem_data {	sub get_Radio_problem_data {
my ($url) = @_;	my ($url) = @_;
my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));	my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
(my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);	(my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
my %Answer = &Apache::lonnet::str2hash($Answ);	my %Answer = &Apache::lonnet::str2hash($Answ);
my %Partdata;	my %Partdata;
&Apache::lonnet::logthis('url = '.$url);
foreach my $part (@{$Answer{'parts'}}) {	foreach my $part (@{$Answer{'parts'}}) {
while (my($key,$value) = each(%Answer)) {	while (my($key,$value) = each(%Answer)) {
# if (ref($value) eq 'ARRAY') {	# if (ref($value) eq 'ARRAY') {
Line 344 sub get_Radio_problem_data {	Line 588 sub get_Radio_problem_data {
return %Partdata;	return %Partdata;
}	}

=cut


#########################################################	#########################################################
#########################################################	#########################################################
##	##
Line 355 sub get_Radio_problem_data {	Line 596 sub get_Radio_problem_data {
#########################################################	#########################################################
#########################################################	#########################################################
sub OptionResponseAnalysis {	sub OptionResponseAnalysis {
my ($r,$resource,$resid,$ProblemData,$Students) = @_;	my ($r,$problem,$ProblemData,$Students) = @_;
	my ($resource,$respid) = ($problem->{'resource'},
	$problem->{'respid'});
	# Note: part data is not needed.
my $PerformanceData =	my $PerformanceData =
&Apache::loncoursedata::get_response_data	&Apache::loncoursedata::get_response_data
($Students,$resource->{'symb'},$resid);	($Students,$resource->{'symb'},$respid);
if (! defined($PerformanceData) \|\|	if (! defined($PerformanceData) \|\|
ref($PerformanceData) ne 'ARRAY' ) {	ref($PerformanceData) ne 'ARRAY' ) {
$r->print('<h2>'.	$r->print('<h2>'.
Line 367 sub OptionResponseAnalysis {	Line 611 sub OptionResponseAnalysis {
} else {	} else {
$r->rflush();	$r->rflush();
if (exists($ENV{'form.ExcelOutput'})) {	if (exists($ENV{'form.ExcelOutput'})) {
my $result = &prepare_optionresponse_excel_sheet($r,$resource,	my $result = &OR_excel_sheet($r,$resource,
$PerformanceData,	$PerformanceData,
$ProblemData);	$ProblemData);
$r->print($result);	$r->print($result);
$r->rflush();	$r->rflush();
} else {	} else {
if ($ENV{'form.AnalyzeOver'} eq 'Tries') {	if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
my $analysis_html = &tries_analysis($r,	my $analysis_html = &OR_tries_analysis($r,
$PerformanceData,	$PerformanceData,
$ProblemData);	$ProblemData);
$r->print($analysis_html);	$r->print($analysis_html);
$r->rflush();	$r->rflush();
} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {	} elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
my $analysis_html = &time_analysis($PerformanceData,	my $analysis_html = &OR_time_analysis($PerformanceData,
$ProblemData);	$ProblemData);
$r->print($analysis_html);	$r->print($analysis_html);
$r->rflush();	$r->rflush();
Line 399 sub OptionResponseAnalysis {	Line 643 sub OptionResponseAnalysis {
# Option Response: Tries Analysis	# Option Response: Tries Analysis
#	#
#########################################################	#########################################################
sub tries_analysis {	sub OR_tries_analysis {
my ($r,$PerformanceData,$ORdata) = @_;	my ($r,$PerformanceData,$ORdata) = @_;
my $mintries = 1;	my $mintries = 1;
my $maxtries = $ENV{'form.NumPlots'};	my $maxtries = $ENV{'form.NumPlots'};
Line 411 sub tries_analysis {	Line 655 sub tries_analysis {
'</h3>'.$table;	'</h3>'.$table;
$ENV{'form.AnalyzeAs'} = 'Foils';	$ENV{'form.AnalyzeAs'} = 'Foils';
}	}
my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData,	my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
$mintries,$maxtries);	$mintries,$maxtries);
my $analysis = '';	my $analysis = '';
if ($ENV{'form.AnalyzeAs'} eq 'Foils') {	if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
$analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils,	$analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
\%ResponseData,$ORdata);	\%ResponseData,$ORdata);
} else {	} else {
$analysis = &Tries_Concept_Analysis($mintries,$maxtries,	$analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
$Concepts,\%ResponseData,$ORdata);	$Concepts,\%ResponseData,$ORdata);
}	}
$table .= $analysis;	$table .= $analysis;
return $table;	return $table;
}	}

sub Tries_Foil_Analysis {	sub OR_Tries_Foil_Analysis {
my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;	my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
my %ResponseData = %$respdat;	my %ResponseData = %$respdat;
#	#
Line 480 sub Tries_Foil_Analysis {	Line 724 sub Tries_Foil_Analysis {
}	}
my $correctgraph = &Apache::loncommon::DrawBarGraph	my $correctgraph = &Apache::loncommon::DrawBarGraph
($title,'Foil Number','Percent Correct',	($title,'Foil Number','Percent Correct',
100,$plotcolors,$Datasets[0]);	100,$plotcolors,undef,$Datasets[0]);
$analysis_html.= '<tr><td>'.$correctgraph.'</td>';	$analysis_html.= '<tr><td>'.$correctgraph.'</td>';
##	##
##	##
	next if (! defined($Datasets[0]));
for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {	for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
$Datasets[0]->[$i]=0;	$Datasets[0]->[$i]=0;
}	}
Line 498 sub Tries_Foil_Analysis {	Line 743 sub Tries_Foil_Analysis {
$title = 'Attempt '.$i.', '.$count;	$title = 'Attempt '.$i.', '.$count;
my $incorrectgraph = &Apache::loncommon::DrawBarGraph	my $incorrectgraph = &Apache::loncommon::DrawBarGraph
($title,'Foil Number','% Option Chosen Incorrectly',	($title,'Foil Number','% Option Chosen Incorrectly',
100,$plotcolors,@Datasets);	100,$plotcolors,undef,@Datasets);
$analysis_html.= '<td>'.$incorrectgraph.'</td>';	$analysis_html.= '<td>'.$incorrectgraph.'</td>';
$analysis_html.= '<td>'.$foilkey."<td></tr>\n";	$analysis_html.= '<td>'.$foilkey."<td></tr>\n";
}	}
Line 506 sub Tries_Foil_Analysis {	Line 751 sub Tries_Foil_Analysis {
return $analysis_html;	return $analysis_html;
}	}

sub Tries_Concept_Analysis {	sub OR_Tries_Concept_Analysis {
my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;	my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
my %ResponseData = %$respdat;	my %ResponseData = %$respdat;
my $analysis_html = "<table>\n";	my $analysis_html = "<table>\n";
Line 565 sub Tries_Concept_Analysis {	Line 810 sub Tries_Concept_Analysis {
$title = 'Attempt '.$i.', '.$count;	$title = 'Attempt '.$i.', '.$count;
my $graphlink = &Apache::loncommon::DrawBarGraph	my $graphlink = &Apache::loncommon::DrawBarGraph
($title,'Concept Number','Percent Correct',	($title,'Concept Number','Percent Correct',
100,$plotcolors,$PlotData[$i]->{'_correct'});	100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
$analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";	$analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
}	}
$analysis_html .= "</table>\n";	$analysis_html .= "</table>\n";
return $analysis_html;	return $analysis_html;
}	}

sub analyze_option_data_by_tries {	sub OR_analyze_by_tries {
my ($r,$PerformanceData,$mintries,$maxtries) = @_;	my ($r,$PerformanceData,$mintries,$maxtries) = @_;
my %Trydata;	my %Trydata;
$mintries = 1 if (! defined($mintries) \|\| $mintries < 1);	$mintries = 1 if (! defined($mintries) \|\| $mintries < 1);
Line 600 sub analyze_option_data_by_tries {	Line 845 sub analyze_option_data_by_tries {
# Option Response: Time Analysis	# Option Response: Time Analysis
#	#
#########################################################	#########################################################
sub time_analysis {	sub OR_time_analysis {
my ($PerformanceData,$ORdata) = @_;	my ($PerformanceData,$ORdata) = @_;
my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);	my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {	if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
Line 658 sub time_analysis {	Line 903 sub time_analysis {
enddateform => $enddateform,	enddateform => $enddateform,
};	};
if ($ENV{'form.AnalyzeAs'} eq 'Foils') {	if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
$table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,	$table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
$interval);	$interval);
} else {	} else {
$table .= &Concept_Time_Analysis($PerformanceData,$ORdata,	$table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
$Concepts,$interval);	$Concepts,$interval);
}	}
}	}
Line 669 sub time_analysis {	Line 914 sub time_analysis {
return $table;	return $table;
}	}

sub Foil_Time_Analysis {	sub OR_Foil_Time_Analysis {
my ($PerformanceData,$ORdata,$Foils,$interval) = @_;	my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
my $analysis_html;	my $analysis_html;
my $foilkey = &build_option_index($ORdata);	my $foilkey = &build_option_index($ORdata);
Line 730 sub Foil_Time_Analysis {	Line 975 sub Foil_Time_Analysis {
'Percent Correct',	'Percent Correct',
100,	100,
$plotcolors,	$plotcolors,
	undef,
$Plotdata[0]);	$Plotdata[0]);
for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {	for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
$Plotdata[0]->[$j]=0;	$Plotdata[0]->[$j]=0;
Line 747 sub Foil_Time_Analysis {	Line 993 sub Foil_Time_Analysis {
'Incorrect Option Choice',	'Incorrect Option Choice',
100,	100,
$plotcolors,	$plotcolors,
	undef,
@Plotdata);	@Plotdata);
$analysis_html.='<tr>'.	$analysis_html.='<tr>'.
'<td>'.$correctplot.'</td>'.	'<td>'.$correctplot.'</td>'.
Line 764 sub Foil_Time_Analysis {	Line 1011 sub Foil_Time_Analysis {
return $analysis_html;	return $analysis_html;
}	}

sub Concept_Time_Analysis {	sub OR_Concept_Time_Analysis {
my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;	my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
my $analysis_html;	my $analysis_html;
##	##
Line 811 sub Concept_Time_Analysis {	Line 1058 sub Concept_Time_Analysis {
'Percent Correct',	'Percent Correct',
100,	100,
$plotcolors,	$plotcolors,
	undef,
\@Plotdata);	\@Plotdata);
$analysis_html.='<tr>'.	$analysis_html.='<tr>'.
'<td>'.$correctplot.'</td>'.	'<td>'.$correctplot.'</td>'.
Line 832 sub Concept_Time_Analysis {	Line 1080 sub Concept_Time_Analysis {
##	##
#########################################################	#########################################################
#########################################################	#########################################################
sub prepare_optionresponse_excel_sheet {	sub OR_excel_sheet {
my ($r,$resource,$PerformanceData,$ORdata) = @_;	my ($r,$resource,$PerformanceData,$ORdata) = @_;
my $response = '';	my $response = '';
my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);	my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
Line 852 sub prepare_optionresponse_excel_sheet {	Line 1100 sub prepare_optionresponse_excel_sheet {
}	}
#	#
$workbook->set_tempdir('/home/httpd/perl/tmp');	$workbook->set_tempdir('/home/httpd/perl/tmp');
#	my $format = &Apache::loncommon::define_excel_formats($workbook);
# 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	# Create and populate main worksheets
my $problem_data_sheet = $workbook->addworksheet('Problem Data');	my $problem_data_sheet = $workbook->addworksheet('Problem Data');
my $student_data_sheet = $workbook->addworksheet('Student Data');	my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
my $response_data_sheet = $workbook->addworksheet('Response Data');	my $response_data_sheet = $workbook->addworksheet('Response Data');
foreach my $sheet ($problem_data_sheet,$student_data_sheet,	foreach my $sheet ($problem_data_sheet,$student_data_sheet,
$response_data_sheet) {	$response_data_sheet) {
Line 876 sub prepare_optionresponse_excel_sheet {	Line 1113 sub prepare_optionresponse_excel_sheet {
}	}
#	#
my $result;	my $result;
$result = &build_problem_data_worksheet($problem_data_sheet,$format,	$result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
$Concepts,$ORdata);	$Concepts,$ORdata);
if ($result ne 'okay') {	if ($result ne 'okay') {
# Do something useful	# Do something useful
}	}
$result = &build_student_data_worksheet($student_data_sheet,$format);	$result = &OR_build_response_data_worksheet($response_data_sheet,$format,
if ($result ne 'okay') {
# Do something useful
}
$result = &build_response_data_worksheet($response_data_sheet,$format,
$PerformanceData,$Foils,	$PerformanceData,$Foils,
$ORdata);	$ORdata);
if ($result ne 'okay') {	if ($result ne 'okay') {
Line 904 sub prepare_optionresponse_excel_sheet {	Line 1137 sub prepare_optionresponse_excel_sheet {
return $result;	return $result;
}	}

sub build_problem_data_worksheet {	sub OR_build_problem_data_worksheet {
my ($worksheet,$format,$Concepts,$ORdata) = @_;	my ($worksheet,$format,$Concepts,$ORdata) = @_;
my $rows_output = 3;	my $rows_output = 3;
my $cols_output = 0;	my $cols_output = 0;
Line 973 sub build_problem_data_worksheet {	Line 1206 sub build_problem_data_worksheet {
return 'okay';	return 'okay';
}	}

sub build_student_data_worksheet {	sub OR_build_response_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;
}

sub build_response_data_worksheet {
my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;	my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
my $rows_output = 3;	my $rows_output = 3;
my $cols_output = 0;	my $cols_output = 0;
Line 1249 sub build_foil_index {	Line 1456 sub build_foil_index {
ten => 10,);	ten => 10,);
my $a1 = lc($a);	my $a1 = lc($a);
my $b1 = lc($b);	my $b1 = lc($b);
if (exists($Numbers{$a})) {	if (exists($Numbers{$a1})) {
$a1 = $Numbers{$a};	$a1 = $Numbers{$a1};
	}
	if (exists($Numbers{$b1})) {
	$b1 = $Numbers{$b1};
}	}
if (exists($Numbers{$b})) {	if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
$b1 = $Numbers{$b};	return $a1 <=> $b1;
	} else {
	return $a1 cmp $b1;
}	}
$a1 cmp $b1;
};	};
my @Concepts;	my @Concepts;
foreach my $concept (sort $sortfunction (keys(%Concepts))) {	foreach my $concept (sort $sortfunction (keys(%Concepts))) {
	if (! defined($Concepts{$concept})) {
	$Concepts{$concept}=[];
	# next;
	}
push(@Concepts,{ name => $concept,	push(@Concepts,{ name => $concept,
foils => [@{$Concepts{$concept}}]});	foils => [@{$Concepts{$concept}}]});
push(@Foils,(@{$Concepts{$concept}}));	push(@Foils,(@{$Concepts{$concept}}));
Line 1291 sub build_foil_index {	Line 1506 sub build_foil_index {
if (@Concepts > 1) {	if (@Concepts > 1) {
$table .= '<tr>'.	$table .= '<tr>'.
'<td>'.$conceptindex.'</td>'.	'<td>'.$conceptindex.'</td>'.
'<td>'.$concept->{'name'}.'</td>'.	'<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
'<td>'.$foilindex++.'</td>'.	'<td>'.$foilindex++.'</td>'.
'<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
'<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.	'<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
'<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
"</tr>\n";	"</tr>\n";
} else {	} else {
$table .= '<tr>'.	$table .= '<tr>'.
'<td>'.$foilindex++.'</td>'.	'<td>'.$foilindex++.'</td>'.
'<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
'<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.	'<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
'<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
"</tr>\n";	"</tr>\n";
}	}
foreach my $foilid (@FoilsInConcept) {	foreach my $foilid (@FoilsInConcept) {
Line 1311 sub build_foil_index {	Line 1526 sub build_foil_index {
'<td></td>'.	'<td></td>'.
'<td></td>'.	'<td></td>'.
'<td>'.$foilindex.'</td>'.	'<td>'.$foilindex.'</td>'.
'<td>'.$Foildata{$foilid}->{'name'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
'<td>'.$Foildata{$foilid}->{'text'}.'</td>'.	'<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
'<td>'.$Foildata{$foilid}->{'value'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
"</tr>\n";	"</tr>\n";
} else {	} else {
$table .= '<tr>'.	$table .= '<tr>'.
'<td>'.$foilindex.'</td>'.	'<td>'.$foilindex.'</td>'.
'<td>'.$Foildata{$foilid}->{'name'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
'<td>'.$Foildata{$foilid}->{'text'}.'</td>'.	'<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
'<td>'.$Foildata{$foilid}->{'value'}.'</td>'.	'<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
"</tr>\n";	"</tr>\n";
}	}
} continue {	} continue {
Line 1345 sub build_option_index {	Line 1560 sub build_option_index {
'<tr>'.	'<tr>'.
'<td bgcolor="'.$plotcolors->[$optionindex++].'">'.	'<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
(' 'x4).'</td>'.	(' 'x4).'</td>'.
'<td>'.$option.'</td>'.	'<td>'.&HTML::Entities::encode($option).'</td>'.
"</tr>\n");	"</tr>\n");
}	}
shift(@Rows); # Throw away 'correct option chosen' color	shift(@Rows); # Throw away 'correct option chosen' color
Line 1403 sub CreateInterface {	Line 1618 sub CreateInterface {
{ # These braces are here to organize the code, not scope it.	{ # These braces are here to organize the code, not scope it.
{	{
$Str .= '<nobr>'.&mt('Analyze Over ');	$Str .= '<nobr>'.&mt('Analyze Over ');
	$Str .= &Apache::loncommon::help_open_topic
	('Analysis_Analyze_Over');
$Str .='<select name="AnalyzeOver" >';	$Str .='<select name="AnalyzeOver" >';
$Str .= '<option value="Tries" ';	$Str .= '<option value="Tries" ';
if (! exists($ENV{'form.AnalyzeOver'}) \|\|	if (! exists($ENV{'form.AnalyzeOver'}) \|\|
Line 1414 sub CreateInterface {	Line 1631 sub CreateInterface {
$Str .= '<option value="Time" ';	$Str .= '<option value="Time" ';
$Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');	$Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
$Str .= '>'.&mt('Time').'</option>';	$Str .= '>'.&mt('Time').'</option>';
$Str .= '</select></nobr><br />';	$Str .= '</select>';
	$Str .= '</nobr><br />';
}	}
{	{
$Str .= '<nobr>'.&mt('Analyze as ');	$Str .= '<nobr>'.&mt('Analyze as ');
	$Str .= &Apache::loncommon::help_open_topic
	('Analysis_Analyze_as');
$Str .='<select name="AnalyzeAs" >';	$Str .='<select name="AnalyzeAs" >';
$Str .= '<option value="Concepts" ';	$Str .= '<option value="Concepts" ';
if (! exists($ENV{'form.AnalyzeAs'}) \|\|	if (! exists($ENV{'form.AnalyzeAs'}) \|\|
Line 1433 sub CreateInterface {	Line 1653 sub CreateInterface {
}	}
{	{
$Str .= '<br /><nobr>'.&mt('Number of Plots:');	$Str .= '<br /><nobr>'.&mt('Number of Plots:');
	$Str .= &Apache::loncommon::help_open_topic
	('Analysis_num_plots');
$Str .= '<select name="NumPlots">';	$Str .= '<select name="NumPlots">';
if (! exists($ENV{'form.NumPlots'})	if (! exists($ENV{'form.NumPlots'})
\|\| $ENV{'form.NumPlots'} < 1	\|\| $ENV{'form.NumPlots'} < 1
Line 1455 sub CreateInterface {	Line 1677 sub CreateInterface {
return $Str;	return $Str;
}	}

sub ProblemSelector {
my $Str;
$Str = "\n<table>\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};
# &Apache::lonnet::logthis('----------------');
# while (my ($k,$v)=each(%$partdata)) {
# if (ref($v) eq 'ARRAY') {
# &Apache::lonnet::logthis($k.' = '.join(',',@$v));
# } else {
# &Apache::lonnet::logthis($k.' = '.$v);
# }
# }
if ((! exists($partdata->{'option'}) \|\|
$partdata->{'option'} == 0 ) &&
(! exists($partdata->{'radiobutton'}) \|\|
$partdata->{'radiobutton'} == 0)) {
next;
}
for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
my $respid = $partdata->{'ResponseIds'}->[$i];
my $resptype = $partdata->{'ResponseTypes'}->[$i];
if ($resptype eq 'option' ){
# if ($resptype eq 'option' \|\| $resptype eq 'radiobutton') {
my $value =
&Apache::lonnet::escape($res->{'symb'}.':'.$part.
':'.$respid.':'.$resptype);
my $checked = '';
if ($ENV{'form.problemchoice'} eq $value) {
$checked = 'checked ';
}
$seq_str .= '<tr><td>'.
'<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
'</td><td>'.
'<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
# '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> ';
if ($partdata->{'option'} > 1) {
$seq_str .= &mt('response').' '.$respid;
}
$seq_str .= "</td></tr>\n";
}
}
}
}
if ($seq_str ne '') {
$Str .= '<tr><td>&nbsp</td><td><b>'.$seq->{'title'}.'</b></td>'.
"</tr>\n".$seq_str;
}
}
$Str .= "</table>\n";
return $Str;
}

#########################################################
#########################################################
##
## Misc functions
##
#########################################################
#########################################################
sub get_problem_symb {
my $problemstring = shift();
my ($symb,$partid,$resid,$resptype) =
($problemstring=~ /^(.):([^:]):([^:]):([^:])$/);
return ($symb,$partid,$resid,$resptype);
}

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;
}


#########################################################	#########################################################
#########################################################	#########################################################
##	##
Line 1591 sub Process_OR_Row {	Line 1728 sub Process_OR_Row {
my @Foilsubs = split('&',$submission);	my @Foilsubs = split('&',$submission);
for (my $j=0;$j<=$#Foilgrades;$j++) {	for (my $j=0;$j<=$#Foilgrades;$j++) {
my ($foilid,$correct) = split('=',$Foilgrades[$j]);	my ($foilid,$correct) = split('=',$Foilgrades[$j]);
	$foilid = &Apache::lonnet::unescape($foilid);
my (undef,$submission) = split('=',$Foilsubs[$j]);	my (undef,$submission) = split('=',$Foilsubs[$j]);
if ($correct) {	if ($correct) {
$RowData{$foilid}->{'_correct'}++;	$RowData{$foilid}->{'_correct'}++;
Line 1603 sub Process_OR_Row {	Line 1741 sub Process_OR_Row {
return %RowData;	return %RowData;
}	}


	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.	## 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	## note: we must force each foil and option to not begin or end with
Line 1617 sub get_problem_data {	Line 1776 sub get_problem_data {
my %Partdata;	my %Partdata;
foreach my $part (@{$Answer{'parts'}}) {	foreach my $part (@{$Answer{'parts'}}) {
while (my($key,$value) = each(%Answer)) {	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(' '.$value);
	}
	}
	# End of logging code
next if ($key !~ /^$part/);	next if ($key !~ /^$part/);
$key =~ s/^$part\.//;	$key =~ s/^$part\.//;
if (ref($value) eq 'ARRAY') {	if (ref($value) eq 'ARRAY') {
Line 1630 sub get_problem_data {	Line 1800 sub get_problem_data {
$Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=	$Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
$concept;	$concept;
}	}
	} elsif ($key =~ /^(incorrect\|answer\|ans_low\|ans_high)$/) {
	$Partdata{$part}->{$key}=$value;
}	}
} else {	} else {
if ($key=~ /^foil\.text\.(.*)$/) {	if ($key=~ /^foil\.text\.(.*)$/) {
Line 1650 sub get_problem_data {	Line 1822 sub get_problem_data {
1;	1;

__END__	__END__

#####
# partdata{part}->{_Foils}->{foilid}->{'name'} = $
# ->{'text'} = $
# ->{'value'} = $
# ->{'_Concept'} = $
# partdata{part}->{_Options} = @
# partdata{part}->{_Concepts} = @

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>

Removed from v.1.49
changed lines
	Added in v.1.69