loncom/interface/statistics/lonproblemstatistics.pm - diff

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Diff for /loncom/interface/statistics/lonproblemstatistics.pm between versions 1.112 and 1.122.2.2

version 1.112, 2008/01/14 14:32:49	version 1.122.2.2, 2013/12/30 14:05:21
Line 73 my %SeqStat; # keys are symbs, values	Line 73 my %SeqStat; # keys are symbs, values
## header for plots created with Graph.pm, both of which more than likely do	## header for plots created with Graph.pm, both of which more than likely do
## not support localization.	## not support localization.
##	##
	## Additional Notes:
	## Localization can be done and is done before passing the phrases
	## to the output.
	## This might conflict with special characters, e.g. German Umlaute or
	## chinese characters. Do not use such characters in this case.
	## If this failed, consider that the sequence and folder names
	## are also passed to the output and would fail the same way.
	##
#	#
#	#
##	##
Line 84 my %SeqStat; # keys are symbs, values	Line 92 my %SeqStat; # keys are symbs, values
## title yes any scalar This is what the user sees to identify	## title yes any scalar This is what the user sees to identify
## the field. Passed through &mt().	## the field. Passed through &mt().
## long_title yes any scalar Used as graph heading and in excel	## long_title yes any scalar Used as graph heading and in excel
## output. NOT translated	## output. Passed through &mt().
## align no (left\|right\|center) HTML cell contents alignment	## align no (left\|right\|center) HTML cell contents alignment
## color yes html color HTML cell background color	## color yes html color HTML cell background color
## used to visually group statistics	## used to visually group statistics
Line 123 my @Fields = (	Line 131 my @Fields = (
align => 'left',	align => 'left',
color => '#FFFFE6',	color => '#FFFFE6',
special => 'link',	special => 'link',
sortable => 'yes',	sortable => 'yes',
selectable => 'no',	selectable => 'no',
defaultselected => 'yes',	defaultselected => 'yes',
},	},
{ name => 'part',	{ name => 'part',
title => 'Part',	title => 'Part',
align => 'left',	align => 'left',
color => '#FFFFE6',	color => '#FFFFE6',
Line 274 my @Fields = (	Line 282 my @Fields = (
sortable => 'yes',	sortable => 'yes',
graphable => 'yes',	graphable => 'yes',
long_title => 'Degree of Difficulty'.	long_title => 'Degree of Difficulty'.
'[ 1 - ((#YES+#yes) / Tries) ]',	' ~[ 1 - ((#YES+#yes) / Tries) ~]',
selectable => 'yes',	selectable => 'yes',
defaultselected => 'yes',	defaultselected => 'yes',
},	},
Line 375 my @SeqFields = (	Line 383 my @SeqFields = (
align => 'left',	align => 'left',
color => '#FFFFE6',	color => '#FFFFE6',
special => 'no',	special => 'no',
sortable => 'no',	sortable => 'no',
selectable => 'yes',	selectable => 'yes',
defaultselected => 'no',	defaultselected => 'no',
},	},
Line 510 my @SeqFields = (	Line 518 my @SeqFields = (
long_title => 'KR-21 reliability statistic',	long_title => 'KR-21 reliability statistic',
selectable => 'yes',	selectable => 'yes',
defaultselected => 'no',	defaultselected => 'no',
},	},
);	);

my %SelectedFields;	my %SelectedFields;
Line 577 sub parse_field_selection {	Line 585 sub parse_field_selection {
}	}

sub field_selection_input {	sub field_selection_input {
my $Str = '<select name="fieldselections" multiple size="5">'."\n";	my $Str = '<select name="fieldselections" multiple="multiple" size="5">'."\n";
$Str .= '<option value="all">all</option>'."\n";	$Str .= '<option value="all">all</option>'."\n";
foreach my $field (@Fields) {	foreach my $field (@Fields) {
next if ($field->{'selectable'} ne 'yes');	next if ($field->{'selectable'} ne 'yes');
Line 610 sub CreateInterface {	Line 618 sub CreateInterface {
&parse_field_selection();	&parse_field_selection();
#	#
my $Str = '';	my $Str = '';
$Str .= &Apache::lonhtmlcommon::breadcrumbs('Overall Problem Statistics',	$Str .= '<p>';
'Statistics_Overall_Key');	$Str .= &Apache::loncommon::start_data_table();
$Str .= '<table cellspacing="5">'."\n";	$Str .= &Apache::loncommon::start_data_table_header_row();
$Str .= '<tr>';	$Str .= '<th>'.&mt('Sections').'</th>';
$Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';	$Str .= '<th>'.&mt('Groups').'</th>';
$Str .= '<td align="center"><b>'.&mt('Groups').'</b></td>';	$Str .= '<th>'.&mt('Access Status').'</th>';
$Str .= '<td align="center"><b>'.&mt('Access Status').'</b></td>';	$Str .= '<th>'.&mt('Sequences and Folders').'</th>';
$Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';	$Str .= '<th>'.&mt('Statistics').'</th>';
$Str .= '<td align="center"><b>'.&mt('Statistics').'</b></td>';	$Str .= '<th>'.&mt('Plot Graph').'</th>';
$Str .= '<td rowspan="2">'.	$Str .= '<th>'.&mt('Time Period').'</th>';
&Apache::lonstathelpers::limit_by_time_form().'</td>';	$Str .= &Apache::loncommon::end_data_table_header_row();
$Str .= '</tr>'."\n";
#	#
$Str .= '<tr><td align="center">'."\n";	$Str .= &Apache::loncommon::start_data_table_row();
	$Str .= '<td align="center" valign="top">'."\n";
$Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);	$Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
$Str .= '</td><td align="center">';	$Str .= '</td><td align="center" valign="top">';
$Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);	$Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
$Str .= '</td><td align="center">';	$Str .= '</td><td align="center" valign="top">';
$Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);	$Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
$Str .= '</td><td align="center">';	$Str .= '</td><td align="center" valign="top">';
#	#
$Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);	$Str .= &Apache::lonstatistics::map_select('Maps','multiple,all',5);
$Str .= '</td><td>'.&field_selection_input();	$Str .= '</td><td align="center" valign="top">';
$Str .= '</td></tr>'."\n";	$Str .= &field_selection_input();
$Str .= '</table>'."\n";	$Str .= '</td><td align="center" valign="top">';
#	$Str .= &plot_dropdown();
$Str .= '<p>'.&mt('Status: [_1]',	$Str .= '</td>'."\n";
'<input type="text" '.	$Str .= '</td><td align="center" valign="top">';
'name="stats_status" size="60" value="" />'	$Str .= &Apache::lonstathelpers::limit_by_time_form();
).	$Str .= '</td>'."\n";
'</nobr></p>';	$Str .= &Apache::loncommon::end_data_table_row();
	$Str .= &Apache::loncommon::end_data_table();
#	#
	$Str .= '</p>';
$Str .= '<input type="submit" name="GenerateStatistics" value="'.	$Str .= '<input type="submit" name="GenerateStatistics" value="'.
&mt('Generate Statistics').'" />';	&mt('Generate Statistics').'" />';
$Str .= ' 'x5;	$Str .= (' 'x10);
$Str .= 'Plot '.&plot_dropdown().(' 'x10);
#	#
return $Str;	return $Str;
}	}
Line 695 sub BuildProblemStatisticsPage {	Line 704 sub BuildProblemStatisticsPage {
undef(%SeqStat);	undef(%SeqStat);
#	#
# Finally let the user know we are here	# Finally let the user know we are here
	$r->print(&Apache::lonhtmlcommon::breadcrumbs('Overall Problem Statistics',
	'Statistics_Overall_Key'));

my $interface = &CreateInterface($r);	my $interface = &CreateInterface($r);
$r->print($interface);	$r->print($interface);
$r->print('<input type="hidden" name="sortby" value="'.$env{'form.sortby'}.	$r->print('<input type="hidden" name="sortby" value="'.$env{'form.sortby'}.
'" />');	'" />');
#	#
my @CacheButtonHTML =	my @CacheButtonHTML =
&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');	&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
my $Str;	my $Str;
foreach my $html (@CacheButtonHTML) {	foreach my $html (@CacheButtonHTML) {
Line 709 sub BuildProblemStatisticsPage {	Line 721 sub BuildProblemStatisticsPage {
#	#
$r->print($Str);	$r->print($Str);
if (! exists($env{'form.firstrun'})) {	if (! exists($env{'form.firstrun'})) {
$r->print('<h3>'.	$r->print('<p class="LC_info"><b>'.
&mt('Press "Generate Statistics" when you are ready.').	&mt('Press "Generate Statistics" when you are ready.').
'</h3><p>'.	'</b></p>'.
	'<p class="LC_info">'.
&mt('It may take some time to update the student data '.	&mt('It may take some time to update the student data '.
'for the first analysis. Future analysis this session '.	'for the first analysis. Future analysis this session '.
' will not have this delay.').	'will not have this delay.').
'</p>');	'</p>');
&clean_up();	&clean_up();
return;	return;
Line 725 sub BuildProblemStatisticsPage {	Line 738 sub BuildProblemStatisticsPage {
# it does not slow things down noticably.	# it does not slow things down noticably.
&Apache::loncoursedata::populate_weight_table();	&Apache::loncoursedata::populate_weight_table();
#	#
($navmap,@sequences) =	($navmap,@sequences) =
&Apache::lonstatistics::selected_sequences_with_assessments();	&Apache::lonstatistics::selected_sequences_with_assessments();
if (! ref($navmap)) {	if (! ref($navmap)) {
$r->print('<h1>'.&mt('A course-wide error occured.').'</h1>'.	$r->print('<div class="LC_error">'.&mt('A course-wide error occurred.').'</div>'.
'<h3>'.$navmap.'</h3>');	'<h3>'.$navmap.'</h3>');
&clean_up();	&clean_up();
return;	return;
}	}
if (exists($env{'form.Excel'})) {	if (exists($env{'form.Excel'})) {
$r->print('<h4>'.	$r->print('<p>'.
&Apache::lonstatistics::section_and_enrollment_description().	&Apache::lonstatistics::section_and_enrollment_description().
'</h4>');	'</p>');
&Excel_output($r);	&Excel_output($r);
} else {	} else {
$r->print('<input type="submit" name="Excel" value="'.	$r->print('<input type="submit" name="Excel" value="'.
&mt('Produce Excel Output').'" />'.' 'x5);	&mt('Produce Excel Output').'" />'.' 'x5);
$r->rflush();	$r->rflush();
$r->print('<h4>'.	$r->print('<p>'.
&Apache::lonstatistics::section_and_enrollment_description().	&Apache::lonstatistics::section_and_enrollment_description().
'</h4>');	'</p>');
my $count = 0;	my $count = 0;
foreach my $seq (@sequences) {	foreach my $seq (@sequences) {
my @resources =	my @resources =
&Apache::lonstathelpers::get_resources($navmap,$seq);	&Apache::lonstathelpers::get_resources($navmap,$seq);
$count += scalar(@resources);	$count += scalar(@resources);
}	}
if ($count > 10) {	if ($count > 10) {
$r->print('<h2>'.	$r->print('<p>'.
&mt('Compiling statistics for [_1] problems',$count).	&mt('Compiling statistics for [quant,_1,problem]',$count).
'</h2>');	'</p>');
if ($count > 30) {	if ($count > 30) {
$r->print('<h3>'.&mt('This will take some time.').'</h3>');	$r->print('<p class="LC_info">'.&mt('This will take some time.').'</p>');
}	}
$r->rflush();	$r->rflush();
}	}
Line 788 sub output_sequence_statistics {	Line 801 sub output_sequence_statistics {
$r->print('<h2>'.&mt('Sequence Statistics').	$r->print('<h2>'.&mt('Sequence Statistics').
&Apache::loncommon::help_open_topic('Statistics_Sequence').	&Apache::loncommon::help_open_topic('Statistics_Sequence').
'</h2>');	'</h2>');
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n".	$r->print(&Apache::loncommon::start_data_table().&Apache::loncommon::start_data_table_header_row());
'<table border="0" cellpadding="3">'."\n".
'<tr bgcolor="#FFFFE6">');
$r->print(&sequence_html_header());	$r->print(&sequence_html_header());
foreach my $seq (@sequences) {	$r->print(&Apache::loncommon::end_data_table_header_row());
	foreach my $seq (@sequences) {
last if ($c->aborted);	last if ($c->aborted);
&compute_sequence_statistics($seq);	&compute_sequence_statistics($seq);
$r->print(&sequence_html_output($seq));	$r->print(&sequence_html_output($seq));
}	}
$r->print('</table>');	$r->print(&Apache::loncommon::end_data_table());
$r->print('</table>');
$r->rflush();	$r->rflush();
return;	return;
}	}
Line 814 sub output_sequence_statistics {	Line 825 sub output_sequence_statistics {
sub output_html_by_sequence {	sub output_html_by_sequence {
my ($r) = @_;	my ($r) = @_;
my $c = $r->connection();	my $c = $r->connection();
$r->print(&html_preamble());	$r->print('<br>'.&html_preamble());
#	#
foreach my $seq (@sequences) {	foreach my $seq (@sequences) {
last if ($c->aborted);	last if ($c->aborted);
$r->print("<h3>".$seq->compTitle."</h3>".	$r->print("<h3>".$seq->compTitle."</h3>".
'<table border="0"><tr><td bgcolor="#777777">'."\n".	&Apache::loncommon::start_data_table().
'<table border="0" cellpadding="3">'."\n".	&Apache::loncommon::start_data_table_header_row().
'<tr bgcolor="#FFFFE6">'.	&statistics_table_header('no container').
&statistics_table_header('no container')."</tr>\n");	&Apache::loncommon::end_data_table_header_row()."\n");
my @Data = &compute_statistics_on_sequence($seq);	my @Data = &compute_statistics_on_sequence($seq);
foreach my $data (@Data) {	foreach my $data (@Data) {
$r->print('<tr>'.&statistics_html_table_data($data,	$r->print(&Apache::loncommon::start_data_table_row().
'no container').	&statistics_html_table_data($data,'no container').
"</tr>\n");	&Apache::loncommon::end_data_table_row()."\n");
}	}
$r->print('</table>'."\n".'</table>'."\n");	$r->print(&Apache::loncommon::end_data_table()."\n");
$r->rflush();	$r->rflush();
}	}
return;	return;
Line 844 sub output_html_stats {	Line 855 sub output_html_stats {
my $count=0;	my $count=0;
foreach my $data (@StatsArray) {	foreach my $data (@StatsArray) {
if ($count++ % 50 == 0) {	if ($count++ % 50 == 0) {
$r->print("</table>\n</table>\n");	$r->print(&Apache::loncommon::end_data_table());
$r->print('<table border="0"><tr><td bgcolor="#777777">'."\n".	$r->print(&Apache::loncommon::start_data_table().
'<table border="0" cellpadding="3">'."\n".	&Apache::loncommon::start_data_table_row().
'<tr bgcolor="#FFFFE6">'.	&statistics_table_header().
'<tr bgcolor="#FFFFE6">'.	&Apache::loncommon::end_data_table_row());
&statistics_table_header().	}
"</tr>\n");	$r->print(&Apache::loncommon::start_data_table_row().
}	&statistics_html_table_data($data).
$r->print('<tr>'.&statistics_html_table_data($data)."</tr>\n");	&Apache::loncommon::end_data_table_row());
}	}
$r->print("</table>\n</table>\n");	$r->print(&Apache::loncommon::end_data_table_row());
return;	return;
}	}

Line 871 sub html_preamble {	Line 882 sub html_preamble {
&Apache::lonlocal::locallocaltime($endtime)	&Apache::lonlocal::locallocaltime($endtime)
).'</h3>';	).'</h3>';
}	}
$Str .= "<h3>".&mt('Compiled on [_1]',	$Str .= "<p>".&mt('Compiled on [_1]',
&Apache::lonlocal::locallocaltime(time))."</h3>";	&Apache::lonlocal::locallocaltime(time))."</p>";
return $Str;	return $Str;
}	}

Line 890 sub statistics_html_table_data {	Line 901 sub statistics_html_table_data {
foreach my $field (@Fields) {	foreach my $field (@Fields) {
next if ($options =~ /no $field->{'name'}/);	next if ($options =~ /no $field->{'name'}/);
next if ($field->{'selected'} ne 'yes');	next if ($field->{'selected'} ne 'yes');
$row .= '<td bgcolor="'.$field->{'color'}.'"';	$row .= '<td style="background-color:'.$field->{'color'}.'"';
if (exists($field->{'align'})) {	if (exists($field->{'align'})) {
$row .= ' align="'.$field->{'align'}.'"';	$row .= ' align="'.$field->{'align'}.'"';
}	}
Line 1002 sub make_single_stat_plot {	Line 1013 sub make_single_stat_plot {
my $title; my $yaxis;	my $title; my $yaxis;
foreach my $field (@Fields) {	foreach my $field (@Fields) {
next if ($field->{'name'} ne $datafield);	next if ($field->{'name'} ne $datafield);
$title = $field->{'long_title'};	$title = &mt($field->{'long_title'});
$yaxis = $field->{'title'};	$yaxis = &mt($field->{'title'});
last;	last;
}	}
if ($title eq '' \|\| $yaxis eq '') {	if ($title eq '' \|\| $yaxis eq '') {
# datafield is something we do not know enough about to plot	# datafield is something we do not know enough about to plot
$r->print('<h3>'.	$r->print('<p class="LC_warning">'.
&mt('Unable to plot the requested statistic.').	&mt('Unable to plot the requested statistic.').
'</h3>');	'</p>');
return;	return;
}	}
#	#
# Build up the data sets to plot	# Build up the data sets to plot
my @Labels;	my @Labels;
my @Data;	my @Data;
my $max = 1;	my $max = 1;
foreach my $data (@StatsArray) {	foreach my $data (@StatsArray) {
Line 1037 sub make_single_stat_plot {	Line 1048 sub make_single_stat_plot {
}	}
#	#
$r->print("<p>".&Apache::loncommon::DrawBarGraph($title,	$r->print("<p>".&Apache::loncommon::DrawBarGraph($title,
'Problem Number',	&mt('Problem Number'),
$yaxis,	$yaxis,
$max,	$max,
undef, # colors	undef, # colors
Line 1055 sub degrees_plot {	Line 1066 sub degrees_plot {
my $plot = '';	my $plot = '';
my $ymax = 0;	my $ymax = 0;
my $ymin = 0;	my $ymin = 0;
my @Disc; my @Diff; my @Labels;	my @Disc; my @Diff; my @Labels;
foreach my $data (@StatsArray) {	foreach my $data (@StatsArray) {
push(@Labels,$data->{'problem_num'});	push(@Labels,$data->{'problem_num'});
my $disc = $data->{'deg_of_disc'};	my $disc = $data->{'deg_of_disc'};
Line 1102 sub degrees_plot {	Line 1113 sub degrees_plot {
my $diffdata .= '<data>'.join(',',@Labels).'</data>'.$/.	my $diffdata .= '<data>'.join(',',@Labels).'</data>'.$/.
'<data>'.join(',',@Diff).'</data>'.$/;	'<data>'.join(',',@Diff).'</data>'.$/;
#	#
my $title = 'Degree of Discrimination\nand Degree of Difficulty';	my $title = &mt('Degree of Discrimination[_1]and Degree of Difficulty','\n');
if ($xmax > 50) {	if ($xmax > 50) {
$title = 'Degree of Discrimination and Degree of Difficulty';	$title = &mt('Degree of Discrimination and Degree of Difficulty');
}	}
	my %lt = &Apache::lonlocal::texthash(
	'alttag' => 'Degree of Discrimination and Degree of Difficulty Plot',
	'xlabel' => 'Problem Number',
	);
#	#
$plot=<<"END";	$plot=<<"END";
<gnuplot	<gnuplot
Line 1117 sub degrees_plot {	Line 1132 sub degrees_plot {
align="center"	align="center"
border="on"	border="on"
transparent="on"	transparent="on"
alttag="Degree of Discrimination and Degree of Difficulty Plot"	alttag="$lt{'alttag'}"
samples="100"	samples="100"
bgcolor="xffffff"	bgcolor="xffffff"
height="$height"	height="$height"
Line 1128 sub degrees_plot {	Line 1143 sub degrees_plot {
box="off" />	box="off" />
<title>$title</title>	<title>$title</title>
<axis xmin="0" ymin="$ymin" xmax="$xmax" ymax="$ymax" color="x000000" />	<axis xmin="0" ymin="$ymin" xmax="$xmax" ymax="$ymax" color="x000000" />
<xlabel>Problem Number</xlabel>	<xlabel>$lt{'xlabel'}</xlabel>
<curve	<curve
linestyle="linespoints"	linestyle="linespoints"
name="DoDisc"	name="DoDisc"
Line 1145 sub degrees_plot {	Line 1160 sub degrees_plot {
</curve>	</curve>
</gnuplot>	</gnuplot>
END	END
my $plotresult =	my $plotresult =
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/;	'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/;
$r->print($plotresult);	$r->print($plotresult);
return;	return;
Line 1190 sub tries_data_plot {	Line 1205 sub tries_data_plot {
'<data>'.join(',',@Mean).'</data>'.$/.	'<data>'.join(',',@Mean).'</data>'.$/.
'<data>'.join(',',@STD).'</data>'.$/;	'<data>'.join(',',@STD).'</data>'.$/;
#	#
my $title = 'Mean and S.D. of Tries';	my $title = &mt('Mean and S.D. of Tries');
if ($xmax > 25) {	if ($xmax > 30) {
$title = 'Mean and Standard Deviation of Tries';	$title = &mt('Mean and Standard Deviation of Tries');
}	}
#	#
	my %lt = &Apache::lonlocal::texthash(
	'alttag' => 'Mean and S.D of Tries Plot',
	'xlabel' => 'Problem Number',
	'ylabel' => 'Number of Tries',
	);
$plot=<<"END";	$plot=<<"END";
<gnuplot	<gnuplot
texfont="10"	texfont="10"
Line 1205 sub tries_data_plot {	Line 1225 sub tries_data_plot {
align="center"	align="center"
border="on"	border="on"
transparent="on"	transparent="on"
alttag="Mean and S.D of Tries Plot"	alttag="$lt{'alttag'}"
samples="100"	samples="100"
bgcolor="xffffff"	bgcolor="xffffff"
height="$height"	height="$height"
width="$width">	width="$width">
<title>$title</title>	<title>$title</title>
<axis xmin="0" ymin="0" xmax="$xmax" ymax="$ymax" color="x000000" />	<axis xmin="0" ymin="0" xmax="$xmax" ymax="$ymax" color="x000000" />
<xlabel>Problem Number</xlabel>	<xlabel>$lt{'xlabel'}</xlabel>
<ylabel>Number of Tries</ylabel>	<ylabel>$lt{'ylabel'}</ylabel>
<curve	<curve
linestyle="yerrorbars"	linestyle="yerrorbars"
name="S.D. Tries"	name="S.D. Tries"
Line 1230 sub tries_data_plot {	Line 1250 sub tries_data_plot {
</curve>	</curve>
</gnuplot>	</gnuplot>
END	END
my $plotresult =	my $plotresult =
'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/;	'<p>'.&Apache::lonxml::xmlparse($r,'web',$plot).'</p>'.$/;
$r->print($plotresult);	$r->print($plotresult);
return;	return;
Line 1238 END	Line 1258 END

sub plot_dropdown {	sub plot_dropdown {
my $current = '';	my $current = '';
	my $title;
#	#
if (defined($env{'form.plot'})) {	if (defined($env{'form.plot'})) {
$current = $env{'form.plot'};	$current = $env{'form.plot'};
Line 1253 sub plot_dropdown {	Line 1274 sub plot_dropdown {
#	#
my $Str= "\n".'<select name="plot" size="1">';	my $Str= "\n".'<select name="plot" size="1">';
$Str .= '<option name="none"></option>'."\n";	$Str .= '<option name="none"></option>'."\n";
$Str .= '<option name="none2">none</option>'."\n";	$Str .= '<option name="none2">'.&mt('none').'</option>'."\n";
foreach my $field (@Additional_Plots,@Fields) {	foreach my $field (@Additional_Plots,@Fields) {
if (! exists($field->{'graphable'}) \|\|	if (! exists($field->{'graphable'}) \|\|
$field->{'graphable'} ne 'yes') {	$field->{'graphable'} ne 'yes') {
Line 1261 sub plot_dropdown {	Line 1282 sub plot_dropdown {
}	}
$Str .= '<option value="'.$field->{'name'}.'"';	$Str .= '<option value="'.$field->{'name'}.'"';
if ($field->{'name'} eq $current) {	if ($field->{'name'} eq $current) {
$Str .= ' selected ';	$Str .= ' selected="selected"';
}	}
$Str.= '>'.&mt($field->{'title'}).'</option>'."\n";	$title = &mt($field->{'long_title'});
	$title = &mt($field->{'title'}) if (!$title);
	$Str.= '>'.$title.'</option>'."\n";
}	}
$Str .= '</select>'."\n";	$Str .= '</select>'."\n";
return $Str;	return $Str;
Line 1341 sub Excel_output {	Line 1364 sub Excel_output {
$excel_sheet->write($rows_output,$cols_output++,	$excel_sheet->write($rows_output,$cols_output++,
'Compiled on '.localtime(time));	'Compiled on '.localtime(time));
#	#
$rows_output++;	$rows_output++;
$cols_output=0;	$cols_output=0;
##	##
## Sequence Statistics	## Sequence Statistics
##	##
&write_headers($excel_sheet,$format,\$rows_output,\$cols_output,	&write_headers($excel_sheet,$format,\$rows_output,\$cols_output,
\@SeqFields);	\@SeqFields);
foreach my $seq (@sequences) {	foreach my $seq (@sequences) {
Line 1423 sub write_headers {	Line 1446 sub write_headers {
foreach my $field (@{$Fields}) {	foreach my $field (@{$Fields}) {
next if ($field->{'selected'} ne 'yes');	next if ($field->{'selected'} ne 'yes');
next if ($field->{'name'} eq 'problem_num');	next if ($field->{'name'} eq 'problem_num');
# Use english for excel as I am not sure how well excel handles	# Use english for excel as I am not sure how well excel handles
# other character sets....	# other character sets....
$excel_sheet->write($$rows_output,$$cols_output,	$excel_sheet->write($$rows_output,$$cols_output,
$field->{'title'},	$field->{'title'},
Line 1447 sub compute_statistics_on_sequence {	Line 1470 sub compute_statistics_on_sequence {
my @Data;	my @Data;
foreach my $res (&Apache::lonstathelpers::get_resources($navmap,$seq)) {	foreach my $res (&Apache::lonstathelpers::get_resources($navmap,$seq)) {
foreach my $part (@{$res->parts}) {	foreach my $part (@{$res->parts}) {
next if ($res->is_survey($part));	next if (($res->is_survey($part)) \|\| ($res->is_anonsurvey($part))) ;
#	#
# This is where all the work happens	# This is where all the work happens
my $data = &get_statistics($seq,$res,$part,scalar(@StatsArray)+1);	my $data = &get_statistics($seq,$res,$part,scalar(@StatsArray)+1);
Line 1536 sub sort_data {	Line 1559 sub sort_data {

=item &get_statistics()	=item &get_statistics()

Wrapper routine from the call to loncoursedata::get_problem_statistics.	Wrapper routine from the call to loncoursedata::get_problem_statistics.
Calls lonstathelpers::get_time_limits() to limit the data set by time	Calls lonstathelpers::get_time_limits() to limit the data set by time
and &compute_discrimination_factor	and &compute_discrimination_factor

Inputs: $sequence, $resource, $part, $problem_num	Inputs: $sequence, $resource, $part, $problem_num

Returns: Hash reference with statistics data from	Returns: Hash reference with statistics data from
loncoursedata::get_problem_statistics.	loncoursedata::get_problem_statistics.

=cut	=cut
Line 1570 sub get_statistics {	Line 1593 sub get_statistics {
&escape($resource->symb);	&escape($resource->symb);
#	#
if ($SelectedFields{'deg_of_disc'}) {	if ($SelectedFields{'deg_of_disc'}) {
$data->{'deg_of_disc'} =	$data->{'deg_of_disc'} =
&compute_discrimination_factor($resource,$part,$sequence);	&compute_discrimination_factor($resource,$part,$sequence);
}	}
#	#
Line 1582 sub get_statistics {	Line 1605 sub get_statistics {
$data->{'sections'}=$sections;	$data->{'sections'}=$sections;
$data->{'course'} = $env{'request.course.id'};	$data->{'course'} = $env{'request.course.id'};
my $urlres=(&Apache::lonnet::decode_symb($resource->symb))[2];	my $urlres=(&Apache::lonnet::decode_symb($resource->symb))[2];
$data->{'urlres'}=$urlres;	my %storestats =
my %storestats =
&LONCAPA::lonmetadata::dynamic_metadata_storage($data);	&LONCAPA::lonmetadata::dynamic_metadata_storage($data);
my ($dom,$user) = ($urlres=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)});	my ($dom,$user) = ($urlres=~m{^($LONCAPA::domain_re)/($LONCAPA::username_re)});
&Apache::lonnet::put('nohist_resevaldata',\%storestats,$dom,$user);	&Apache::lonnet::put('nohist_resevaldata',\%storestats,$dom,$user);
}	}
#	#
Line 1599 sub get_statistics {	Line 1621 sub get_statistics {
# my $hinttries = &Apache::lonnet::EXT('resource.'.$part.'.hinttries',$symb);	# my $hinttries = &Apache::lonnet::EXT('resource.'.$part.'.hinttries',$symb);
my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',$symb);	my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',$symb);
$data->{'weight'} = $weight;	$data->{'weight'} = $weight;
# $data->{'duedate'} = $duedate;	# $data->{'duedate'} = $duedate;
# $data->{'opendate'} = $opendate;	# $data->{'opendate'} = $opendate;
# $data->{'maxtries'} = $maxtries;	# $data->{'maxtries'} = $maxtries;
# $data->{'hinttries'} = $hinttries;	# $data->{'hinttries'} = $hinttries;
Line 1633 sub compute_discrimination_factor {	Line 1655 sub compute_discrimination_factor {
#	#
# rank	# rank
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits();	my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits();
my $ranking =	my $ranking =
&Apache::loncoursedata::rank_students_by_scores_on_resources	&Apache::loncoursedata::rank_students_by_scores_on_resources
(\@Resources,	(\@Resources,
[&Apache::lonstatistics::get_selected_sections()],	[&Apache::lonstatistics::get_selected_sections()],
Line 1644 sub compute_discrimination_factor {	Line 1666 sub compute_discrimination_factor {
# compute their percent scores on the problems in the sequence,	# compute their percent scores on the problems in the sequence,
my $number_to_grab = int(scalar(@{$ranking})/4);	my $number_to_grab = int(scalar(@{$ranking})/4);
my $num_students = scalar(@{$ranking});	my $num_students = scalar(@{$ranking});
my @BottomSet = map { $_->[&Apache::loncoursedata::RNK_student()];	my @BottomSet = map { $_->[&Apache::loncoursedata::RNK_student()];
} @{$ranking}[0..$number_to_grab];	} @{$ranking}[0..$number_to_grab];
my @TopSet =	my @TopSet =
map {	map {
$_->[&Apache::loncoursedata::RNK_student()];	$_->[&Apache::loncoursedata::RNK_student()];
} @{$ranking}[-$number_to_grab..0];	} @{$ranking}[-$number_to_grab..0];
if (! @BottomSet \|\| (@BottomSet == 1 && $BottomSet[0] eq '') \|\|	if (! @BottomSet \|\| (@BottomSet == 1 && $BottomSet[0] eq '') \|\|
! @TopSet \|\| (@TopSet == 1 && $TopSet[0] eq '')) {	! @TopSet \|\| (@TopSet == 1 && $TopSet[0] eq '')) {
return 'nan';	return 'nan';
}	}
my ($bottom_sum,$bottom_max) =	my ($bottom_sum,$bottom_max) =
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@BottomSet,	&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@BottomSet,
undef,$starttime,$endtime);	undef,$starttime,$endtime);
my ($top_sum,$top_max) =	my ($top_sum,$top_max) =
&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@TopSet,	&Apache::loncoursedata::get_sum_of_scores($symb,$part,\@TopSet,
undef,$starttime,$endtime);	undef,$starttime,$endtime);
my $deg_of_disc;	my $deg_of_disc;
Line 1680 sub compute_discrimination_factor {	Line 1702 sub compute_discrimination_factor {
##	##
## K=the number of items in your test	## K=the number of items in your test
## M=the mean score on the test	## M=the mean score on the test
## s=the standard deviation of the scores on your test	## s=the standard deviation of the scores on your test
##	##
## then:	## then:
##	##
## KR-21 rk= [K/(K-1)] * [1- (M(K-M))/(Ks^2))]	## KR-21 rk= [K/(K-1)] * [1- (M(K-M))/(Ks^2))]
##	##
###############################################	###############################################
Line 1700 sub compute_sequence_statistics {	Line 1722 sub compute_sequence_statistics {
my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits();	my ($starttime,$endtime) = &Apache::lonstathelpers::get_time_limits();
#	#
# First compute statistics based on student scores	# First compute statistics based on student scores
my ($smin,$smax,$sMean,$sSTD,$scount,$sMAX) =	my ($smin,$smax,$sMean,$sSTD,$scount,$sMAX) =
&Apache::loncoursedata::score_stats	&Apache::loncoursedata::score_stats
([&Apache::lonstatistics::get_selected_sections()],	([&Apache::lonstatistics::get_selected_sections()],
[&Apache::lonstatistics::get_selected_groups()],	[&Apache::lonstatistics::get_selected_groups()],
Line 1715 sub compute_sequence_statistics {	Line 1737 sub compute_sequence_statistics {
$SeqStat{$symb}->{'max_possible'} = $sMAX;	$SeqStat{$symb}->{'max_possible'} = $sMAX;
#	#
# Compute statistics based on the number of correct problems	# Compute statistics based on the number of correct problems
# 'correct' is taken to mean	# 'correct' is taken to mean
my ($cmin,$cmax,$cMean,$cSTD,$ccount)=	my ($cmin,$cmax,$cMean,$cSTD,$ccount)=
&Apache::loncoursedata::count_stats	&Apache::loncoursedata::count_stats
([&Apache::lonstatistics::get_selected_sections()],	([&Apache::lonstatistics::get_selected_sections()],

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

Removed from v.1.112
changed lines
	Added in v.1.122.2.2