File:
[LON-CAPA] /
loncom /
interface /
statistics /
lonstudentassessment.pm
Revision
1.30:
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Fri Feb 28 21:19:00 2003 UTC (21 years, 2 months ago) by
matthew
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I did *NOT* rewrite the subroutines &CreateLegend and &StudentAverageTotal.
&StudentAverageTotal is not called at this time and will be rewritten.
Removed:
&ShouldShowColumns
&FindSelectedStudent
&CreateColumnSelectors
&CreateColumnSelectionBox
&MaxSeqPr
&StudentReport
Added:
&ChartOutputStudent
&StudentPerformanceOnSequence
Rewrote:
&CreateTableHeadings
&CreateInterface
&BuildStudentAssessmentPage
Now use &Apache::loncommon::get_current_state() to get the chart data (see
&ChartOutputStudent()). Note this uses the symb-less call since we are
most likely to process all the students data.
# The LearningOnline Network with CAPA
#
# $Id: lonstudentassessment.pm,v 1.30 2003/02/28 21:19:00 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
# (Navigate problems for statistical reports
#
#######################################################
#######################################################
=pod
=head1 NAME
lonstudentassessment
=head1 SYNOPSIS
Presents assessment data about a student or a group of students.
=head1 Subroutines
=over 4
=cut
#######################################################
#######################################################
package Apache::lonstudentassessment;
use strict;
use Apache::lonstatistics;
use Apache::lonhtmlcommon;
use Apache::loncoursedata;
use Apache::lonnet; # for logging porpoises
use GDBM_File;
my $Statistics;
#######################################################
#######################################################
=pod
=item &BuildStudentAssessmentPage()
Inputs:
=over 4
=item $cacheDB The name of the cache file used to store student data
=item $students Array ref containing the name(s) of the students
selected for display
=item $courseID The ID of the course
=item $formName The name of the html form - 'Statistics'
=item $headings Array ref of headings to show
=item $spacing A string of spaces
=item $studentInformation Array ref of possible headings for student info
('fullname','section',...)
=item $r Apache Request
=item $c Apache Connection
=back
=cut
#######################################################
#######################################################
sub BuildStudentAssessmentPage {
my ($r,$c)=@_;
undef($Statistics);
#
$r->print(&CreateInterface());
$r->rflush();
#
$r->print(&CreateTableHeadings());
if($c->aborted()) { return ; }
my $Count = 0;
$r->print('<pre>'."\n");
foreach my $student (@Apache::lonstatistics::Students) {
if($c->aborted()) { return ; }
$r->print(&ChartOutputStudent($student));
# output it
$Count++;
if($Count % 5 == 0) {
$r->print("</pre>\n<pre>");
}
$r->rflush();
}
$r->print('</pre>'."\n");
my $Str;
return;
}
#######################################################
#######################################################
=pod
=item &CreateInterface()
Called by &BuildStudentAssessmentPage to create the top part of the
page which displays the chart.
Inputs: None
Returns: A string containing the HTML for the headers and top table for
the chart page.
=cut
#######################################################
#######################################################
sub CreateInterface {
my $Str = '';
# $Str .= &CreateLegend();
$Str .= '<table cellspacing="5">'."\n";
$Str .= '<tr>';
$Str .= '<td align="center"><b>Sections</b></td>';
$Str .= '<td align="center"><b>Student Data</b></td>';
$Str .= '<td align="center"><b>Sequences and Folders</b></td>';
$Str .= '</tr>'."\n";
#
$Str .= '<tr><td align="center">'."\n";
$Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
$Str .= '</td><td align="center">';
my $only_seq_with_assessments = sub {
my $s=shift;
if ($s->{'num_assess'} < 1) {
return 0;
} else {
return 1;
}
};
$Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple',
5,undef);
$Str .= '</td><td>'."\n";
$Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
$only_seq_with_assessments);
$Str .= '</td></tr>'."\n";
$Str .= '</table>'."\n";
return $Str;
}
#######################################################
#######################################################
=pod
=item Table Output Routines
=over 4
=cut
#######################################################
#######################################################
{
my $padding;
#######################################################
#######################################################
=pod
=item &CreateTableHeadings()
Create HTML for the columns of student data to show.
Called by &BuildStudentAssessmentPage(). Calls
&Apache::lonhtmlcommon::CreateHeadings().
Inputs:
=over 4
=item $cache The ubiquitous cache
=item $spacing A string of spaces
=item $infoKeys Array ref to names of keys to display from the cache
which describe students
=item $infoHeadings Array ref to headings of columns for student info
=item $sequenceKeys Array ref of names of keys to use to retrieve sequence
data from the cache
=item $sequenceHeadings Array ref of names of sequences used for output.
=back
Returns: A string containing the HTML of the table headings.
=cut
#######################################################
#######################################################
sub CreateTableHeadings {
#
$padding = ' 'x3;
#
my $Str = '<pre>';
# First, the @StudentData fields need to be listed
my @to_show = @Apache::lonstatistics::SelectedStudentData;
foreach (@to_show) {
if ($_ eq 'all') {
@to_show = @Apache::lonstatistics::StudentDataOrder;
last;
}
}
foreach my $field (@to_show) {
my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
$Str .= $title.' 'x($width-$base).$padding;
}
# Now the selected sequences need to be listed
foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) {
foreach my $sequence (@Apache::lonstatistics::Sequences) {
next if ($sequence->{'symb'} ne $map_symb && $map_symb ne 'all');
next if ($sequence->{'num_assess'} < 1);
my $title = $sequence->{'title'};
my $base = $sequence->{'base_width'};
my $width = $sequence->{'width'};
$Str .= $title.' 'x($width-$base).$padding;
}
}
$Str .= 'total';
$Str .= "</pre>\n";
return $Str;
}
#######################################################
#######################################################
=pod
=item &ChartOutputStudent($student)
Return a line of the chart for a student.
=cut
#######################################################
#######################################################
sub ChartOutputStudent {
my $student = shift;
my $Str = '';
# First, the @StudentData fields need to be listed
my @to_show = @Apache::lonstatistics::SelectedStudentData;
foreach (@to_show) {
if ($_ eq 'all') {
@to_show = @Apache::lonstatistics::StudentDataOrder;
last;
}
}
foreach my $field (@to_show) {
my $title=$student->{$field};
my $base =scalar(my @Tmp = split(//,$title));
my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
$Str .= $title.' 'x($width-$base).$padding;
}
# Get ALL the students data
my %StudentsData;
my @tmp = &Apache::loncoursedata::get_current_state
($student->{'username'},$student->{'domain'},undef,
$ENV{'request.course.id'});
if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
%StudentsData = @tmp;
}
if (scalar(@tmp) < 1) {
$Str .= '<font color="blue">No Course Data</font>'."\n";
return $Str;
}
#
# By sequence build up the data
my $studentstats;
foreach my $map_symb (@Apache::lonstatistics::SelectedMaps) {
foreach my $seq (@Apache::lonstatistics::Sequences) {
next if ($map_symb ne $seq->{'symb'} && $map_symb ne 'all');
next if ($seq->{'num_assess'} < 1);
my ($performance,$score,$seq_max) =
&StudentPerformanceOnSequence($student,\%StudentsData,
$seq,'linkify');
$Str .= $performance.$padding;
$studentstats->{$seq->{'symb'}}->{'score'}= $score;
$studentstats->{$seq->{'symb'}}->{'max'} = $seq_max;
}
}
#
# Total it up and store the statistics info.
my ($score,$max) = (0,0);
while (my ($symb,$seq_stats) = each (%{$studentstats})) {
$Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
$Statistics->{$symb}->{'max'} += $seq_stats->{'max'};
$score += $seq_stats->{'score'};
$max += $seq_stats->{'max'};
}
my $scorelength = scalar(my @tmp1 = split(//,$score));
my $maxlength = scalar(my @tmp2 = split(//,$max));
$Str .= ' '.' 'x($maxlength-$scorelength).$score.'/'.$max;
$Str .= " \n";
return $Str;
}
#######################################################
#######################################################
=pod
=back
=cut
#######################################################
#######################################################
}
#######################################################
#######################################################
=pod
=item &StudentPerformanceOnSequence()
Inputs:
=over 4
=item $student
=item $studentdata Hash ref to all student data
=item $seq Hash ref, the sequence we are working on
=item $links if defined we will output links to each resource.
=back
=cut
#######################################################
#######################################################
sub StudentPerformanceOnSequence {
my ($student,$studentdata,$seq,$links) = @_;
my $Str = '';
my $output_width = 0;
my ($sum,$max) = (0,0);
foreach my $resource (@{$seq->{'contents'}}) {
next if ($resource->{'type'} ne 'assessment');
my $resource_data = $studentdata->{$resource->{'symb'}};
my $value = '';
foreach my $partnum (@{$resource->{'parts'}}) {
$max++;
my $symbol = ' '; # default to space
#
if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
my $status = $resource_data->{'resource.'.$partnum.'.solved'};
if ($status eq 'correct_by_override') {
$symbol = '+';
$sum++;
} elsif ($status eq 'incorrect_by_override') {
$symbol = '-';
} elsif ($status eq 'ungraded_attempted') {
$symbol = '#';
} elsif ($status eq 'incorrect_attempted') {
$symbol = '.';
} elsif ($status eq 'excused') {
$symbol = 'x';
$max--;
} elsif ($status eq 'correct_by_student' &&
exists($resource_data->{'resource.'.$partnum.'.tries'})){
my $num = $resource_data->{'resource.'.$partnum.'.tries'};
if ($num > 9) {
$symbol = '*';
} elsif ($num > 0) {
$symbol = $num;
} else {
$symbol = ' ';
}
$sum++;
} else {
$symbol = ' ';
}
} else {
# Unsolved. Did they try?
if (exists($resource_data->{'resource.'.$partnum.'.tries'})){
$symbol = '.';
} else {
$symbol = ' ';
}
}
#
$output_width++;
if (defined($links) && $symbol ne ' ') {
$symbol = '<a href="/adm/grades'.
'?symb='.&Apache::lonnet::escape($resource->{'symb'}).
'&student='.$student->{'username'}.
'&domain='.$student->{'domain'}.
'&command=submission">'.$symbol.'</a>';
}
$value .= $symbol;
}
$Str .= $value;
}
# Put on the totals
my $ratio = $sum.'/'.$max;
my $ratio_length = scalar(my @tmp1 = split(//,$ratio));
# Pad with extra spaces
my $width = $seq->{'width'};
$Str .= ' 'x($width-$output_width-$ratio_length).$ratio;
#
return ($Str,$sum,$max);
}
#######################################################
#######################################################
sub StudentAverageTotal {
my ($cache, $students, $sequenceKeys)=@_;
my $Str = "\n<b>Summary Tables:</b>\n";
my %Correct = ();
my $ProblemsSolved = 0;
my $TotalProblems = 0;
my $StudentCount = 0;
foreach my $name (@$students) {
$StudentCount++;
foreach my $sequence (@$sequenceKeys) {
$Correct{$sequence} +=
$cache->{$name.':'.$sequence.':problemsCorrect'};
}
$ProblemsSolved += $cache->{$name.':problemsSolved'};
$TotalProblems += $cache->{$name.':totalProblems'};
}
if ($StudentCount) {
$ProblemsSolved = sprintf( "%.2f",
$ProblemsSolved/$StudentCount);
$TotalProblems /= $StudentCount;
} else {
$ProblemsSolved = 0;
$TotalProblems = 0;
}
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .= '<tr><td><b>Students Count</b></td><td><b>'.
$StudentCount.'</b></td></tr>'."\n";
$Str .= '<tr><td><b>Total Problems</b></td><td><b>'.
$TotalProblems.'</b></td></tr>'."\n";
$Str .= '<tr><td><b>Average Correct</b></td><td><b>'.
$ProblemsSolved.'</b></td></tr>'."\n";
$Str .= '</table>'."\n";
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .= '<tr><th>Title</th><th>Total Problems</th>'.
'<th>Average Correct</th></tr>'."\n";
foreach my $S(@$sequenceKeys) {
my $title=$cache->{$S.':title'};
#$Str .= $cache->{$S.':problems'};
#my @problems=split(':', $cache->{$S.':problems'});
#my $pCount=scalar @problems;
my $pCount=MaxSeqPr($cache,@$students[0],$S);
my $crr;
if ($StudentCount) {
$crr=sprintf( "%.2f", $Correct{$S}/$StudentCount );
} else {
$crr="0.00";
}
$Str .= '<tr><td>'.$title.
'</td><td align=center>'.$pCount.
'</td><td align=center>'.$crr.
'</td></tr>'."\n";
}
$Str .= '</table>'."\n";
return $Str;
}
#######################################################
#######################################################
=pod
=item &CreateLegend()
This function returns a formatted string containing the legend for the
chart. The legend describes the symbols used to represent grades for
problems.
=cut
#######################################################
#######################################################
sub CreateLegend {
my $Str = "<p><pre>".
" 1 correct by student in 1 try\n".
" 7 correct by student in 7 tries\n".
" * correct by student in more than 9 tries\n".
" + correct by hand grading or override\n".
" - incorrect by override\n".
" . incorrect attempted\n".
" # ungraded attempted\n".
" not attempted (blank field)\n".
" x excused".
"</pre><p>";
return $Str;
}
#######################################################
#######################################################
=pod
=back
=cut
#######################################################
#######################################################
1;
__END__
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