1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonsubmissiontimeanalysis.pm,v 1.19 2005/03/04 20:34:15 matthew Exp $
4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
27:
28: package Apache::lonsubmissiontimeanalysis;
29:
30: use strict;
31: use Apache::lonnet();
32: use Apache::loncommon();
33: use Apache::lonhtmlcommon();
34: use Apache::loncoursedata();
35: use Apache::lonstatistics;
36: use Apache::lonstathelpers;
37: use Apache::lonlocal;
38: use HTML::Entities();
39: use Time::Local();
40: use Spreadsheet::WriteExcel();
41:
42: my $plotcolors = ['#33ff00',
43: '#ff33cc', '#990000', '#aaaa66', '#663399', '#ff9933',
44: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
45: ];
46:
47: my @SubmitButtons = (
48: { name => 'PrevProblemAnalysis',
49: text => 'Previous Problem' },
50: { name => 'ProblemAnalysis',
51: text => 'Analyze Problem Again' },
52: { name => 'NextProblemAnalysis',
53: text => 'Next Problem' },
54: { name => 'SelectAnother',
55: text => 'Choose a different Problem' },
56: );
57:
58: sub BuildSubmissionTimePage {
59: my ($r,$c)=@_;
60: #
61: my %Saveable_Parameters = ('Status' => 'scalar',
62: 'Section' => 'array');
63: &Apache::loncommon::store_course_settings('submissiontime_analysis',
64: \%Saveable_Parameters);
65: &Apache::loncommon::restore_course_settings('submissiontime_analysis',
66: \%Saveable_Parameters);
67: #
68: &Apache::lonstatistics::PrepareClasslist();
69: #
70: $r->print(&CreateInterface());
71: #
72: my @Students = @Apache::lonstatistics::Students;
73: #
74: if (@Students < 1) {
75: $r->print('<h2>There are no students in the sections selected</h2>');
76: }
77: #
78: my @CacheButtonHTML =
79: &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
80: $r->rflush();
81: #
82: if (! exists($ENV{'form.problemchoice'}) ||
83: exists($ENV{'form.SelectAnother'})) {
84: $r->print('<input type="submit" name="" value="'.
85: &mt('Graph Problem Submission Times').'" />');
86: $r->print(' 'x5);
87: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
88: $r->print(&Apache::lonstathelpers::problem_selector('.'));
89: } else {
90: foreach my $button (@SubmitButtons) {
91: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
92: 'value="'.&mt($button->{'text'}).'" />');
93: $r->print(' 'x5);
94: }
95: foreach my $html (@CacheButtonHTML) {
96: $r->print($html.(' 'x5));
97: }
98: $r->rflush();
99: #
100: # Determine which problem we are to analyze
101: my $current_problem = &Apache::lonstathelpers::get_target_from_id
102: ($ENV{'form.problemchoice'});
103: #
104: my ($navmap,$prev,$curr,$next) =
105: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
106: '.',
107: 'part');
108: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
109: $current_problem = $prev;
110: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
111: $current_problem = $next;
112: } else {
113: $current_problem = $curr;
114: }
115: #
116: # Store the current problem choice and send it out in the form
117: $ENV{'form.problemchoice'} =
118: &Apache::lonstathelpers::make_target_id($current_problem);
119: $r->print('<input type="hidden" name="problemchoice" value="'.
120: $ENV{'form.problemchoice'}.'" />');
121: #
122: $r->print('<hr />');
123: $r->rflush();
124: #
125: my $resource = $current_problem->{'resource'};
126: if (! defined($resource)) {
127: $r->print('resource is undefined');
128: } else {
129: $r->print('<h1>'.$resource->compTitle.'</h1>');
130: $r->print('<h3>'.$resource->src.'</h3>');
131: $r->rflush();
132: $r->print(&Apache::lonstathelpers::render_resource($resource));
133: $r->print('<br />');
134: $r->rflush();
135: $r->print(&analyze_times($r,$resource->symb,\@Students,
136: $current_problem->{'part'}));
137: }
138: $r->print('<hr />');
139: }
140: }
141:
142: #########################################################
143: #########################################################
144: ##
145: ## Time Analysis
146: ##
147: #########################################################
148: #########################################################
149: sub get_week_start {
150: my ($randomtime) = @_;
151: my ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) =
152: localtime($randomtime);
153: $randomtime -= $wday * 86400;
154: ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) =
155: localtime($randomtime);
156: my $week_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
157: return $week_start;
158: }
159:
160: sub analyze_times {
161: my ($r,$symb,$students,$part) = @_;
162: my $htmltable;
163: #
164: # Convenience arrays
165: my @FullWeekDay = (qw/Sunday Monday Tuesday Wednesday Thursday Friday
166: Saturday/);
167: my @WeekDay = (qw/SUN MON TUE WED THU FRI SAT SUN/);
168: my @Month = (qw/Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec/);
169: #
170: my $html; # holds results of analysis
171: # Get the data
172: my $SubData = &Apache::loncoursedata::get_response_time_data
173: (\@Apache::lonstatistics::SelectedSections,
174: $Apache::lonstatistics::enrollment_status,
175: $symb,$part);
176: if (! defined($SubData) || ! ref($SubData)) {
177: $html.= '<h2>There is no submission data for this problem at all</h2>';
178: return $html;
179: }
180: my $NumSub = scalar(@{$SubData});
181: if (! @{$SubData}) {
182: $html.= '<h2>There is no submission data for this problem</h2>';
183: return $html;
184: }
185: # Process the data
186: #
187: my (undef,undef,undef,$mday,$month,$year,$wday,$yday,$isdst) =
188: localtime(&get_time_from_row($SubData->[0]));
189: my $day_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
190: #
191: # Configure the bins used to store the data.
192: my $binsize = 3600; # seconds
193: my $bins_per_day = 86400/$binsize;
194: my $bincount = 0;
195: my $endtime = $day_start;
196: #
197: # Initialize loop variables
198: my $max; # The sum of @Ydata
199: my @Ydata=(0); # number of submissions
200: my @AnsData=(0); # number of correct submissions
201: my @Xlabel=($WeekDay[$wday]); # Labels of itmes
202: my @BinEnd; # The end time of each bin
203: my $cumulative_answers = 0; # The sum of @AnsData
204: my %students; # which students have attempted the problem?
205: #
206: foreach my $row (@$SubData) {
207: my $subtime = &get_time_from_row($row);
208: while ($subtime > $endtime && $endtime < time) {
209: # Create a new bin
210: $bincount++;
211: $Ydata[$bincount] = 0;
212: $AnsData[$bincount] = 0;
213: $endtime += $binsize;
214: push(@BinEnd,$endtime);
215: if ($bincount % (86400/$binsize) == 0) {
216: $wday++;
217: $wday %= 7;
218: $Xlabel[$bincount] = $WeekDay[$wday];
219: } else {
220: $Xlabel[$bincount] = '';
221: }
222: }
223: $Ydata[$bincount]++;
224: $max = $Ydata[$bincount] if ($max < $Ydata[$bincount]);
225: $AnsData[$bincount] += &successful_submission($row);
226: $cumulative_answers += &successful_submission($row);
227: $students{$row->[&Apache::loncoursedata::RT_student_id()]}++;
228: }
229: #
230: # Pad the data to a full day
231: while ($bincount % $bins_per_day != 0) {
232: $bincount++;
233: $Ydata[$bincount]=0;
234: $AnsData[$bincount]=0;
235: $endtime += $binsize;
236: push(@BinEnd,$endtime);
237: if ($bincount % (86400/$binsize) == 0) {
238: $wday ++;
239: $wday %= 7;
240: $Xlabel[$bincount] = $WeekDay[$wday];
241: } else {
242: $Xlabel[$bincount] = '';
243: }
244: }
245: my $numstudents = scalar(keys(%students));
246: #
247: # Determine a nice maximum value to use
248: foreach my $maximum (10,15,20,25,30,40,50,60,70,80,90,100,
249: 120,150,200,250,300,350,400,450,500,
250: 600,700,800,900,1000,1100,1200,1500,2000,
251: 2500,3000,4000,5000) {
252: if ($max < $maximum) {
253: $max = $maximum;
254: last;
255: }
256: }
257: #
258: # Build the data table
259: $htmltable = '<p>'.
260: '<table rules="groups" frame="border" '.
261: 'summary="Student submission data">'.
262: '<thead>'.
263: '<tr>'.
264: '<th valign="bottom">'.&mt('Begin').'</th>'.
265: '<th>'.(' 'x3).'</th>'.
266: '<th valign="bottom">'.&mt('End').'</th>'.
267: '<th valign="bottom">'.&mt('Submissions').'</th>'.
268: '<th>'.(' 'x3).'</th>'.
269: '<th valign="bottom">'.&mt('Correct Submissions').'</th>'.
270: '<th>'.(' 'x3).'</th>'.
271: '<th valign="bottom">'.&mt('Cumulative Correct of those attempting the problem').'</th>'.
272: '<th>'.(' 'x3).'</th>'.
273: '<th valign="bottom">'.&mt('Cumulative Percent Correct of those attempting the problem').'</th>'.
274: '</tr>'.
275: '</thead>'.
276: '<tbody>';
277: my @CumulativeCorrect=(0);
278: my @CumulativeCorrectPercent;
279: for (my $i=0;$i<=$#Ydata;$i++) {
280: $CumulativeCorrect[$i]=$CumulativeCorrect[-1]+$AnsData[$i];
281: $CumulativeCorrectPercent[$i] = sprintf('%3.1f',100*$CumulativeCorrect[$i]/$numstudents);
282: if ($Ydata[$i] != 0) {
283: next if (! defined($BinEnd[$i]) || $BinEnd[$i] == 0);
284: $htmltable .=
285: '<tr>'.
286: '<td align="right"><nobr>'.
287: &Apache::lonlocal::locallocaltime($BinEnd[$i]-$binsize).
288: '</nobr></td>'.
289: '<td> </td>'.
290: '<td align="right"><nobr>'.
291: &Apache::lonlocal::locallocaltime($BinEnd[$i]).'</td>'.
292: '</nobr></td>'.
293: '<td align="right">'.$Ydata[$i].(' 'x3).'</td>'.
294: '<td> </td>'.
295: '<td align="right">'.$AnsData[$i].(' 'x3).'</td>'.
296: '<td> </td>'.
297: '<td align="right">'.$CumulativeCorrect[$i].'</td>'.
298: '<td> </td>'.
299: '<td align="right">'.$CumulativeCorrectPercent[$i].'</td>'.
300: '</tr>'.$/;
301: }
302: }
303: $htmltable .= '</tbody></table></p>';
304: #
305: # Build the plot
306: my $title = '';#'Number of Submissions and Number Correct';
307: my $xlabel;
308: (undef,undef,undef,$mday,$month,$year,$wday) = localtime($day_start);
309: $xlabel .= $FullWeekDay[$wday].' '.
310: join(' ',($Month[$month],$mday,1900+$year)).' - ';
311: (undef,undef,undef,$mday,$month,$year,$wday) = localtime($endtime);
312: $xlabel .= $FullWeekDay[$wday].' '.
313: join(' ',($Month[$month],$mday,1900+$year));
314: my $width = 50+2*$bincount;
315: if ($width < 250) {
316: $width = 250;
317: }
318: #
319: $html .= &Apache::loncommon::DrawXYYGraph($title,
320: $xlabel,
321: 'Submissions vs Time',
322: $plotcolors,
323: \@Xlabel,
324: \@Ydata,0,$max,
325: \@CumulativeCorrectPercent,0,100,
326: (xskip => $bins_per_day,
327: x_ticks => $bins_per_day,
328: x_tick_offset => $bins_per_day,
329: width => $width,
330: y1_label=>'Number of Submissions per hour',
331: y2_label=>'Percent of Students answering Correctly',
332: 'data.1.label'=>'Submissions per hour',
333: 'data.2.label'=>'Percent correct',
334: )
335: );
336: $html .= '<br />'.$htmltable;
337: return $html;
338: }
339:
340: sub successful_submission {
341: my ($row) = @_;
342: if (ref($row) eq 'ARRAY') {
343: return $row->[&Apache::loncoursedata::RT_awarded()];
344: }
345: return undef;
346: }
347:
348: sub get_time_from_row {
349: my ($row) = @_;
350: if (ref($row) eq 'ARRAY') {
351: return $row->[&Apache::loncoursedata::RT_timestamp()];
352: }
353: return undef;
354: }
355:
356: sub get_tries_from_row {
357: my ($row) = @_;
358: if (ref($row) eq 'ARRAY') {
359: return $row->[&Apache::loncoursedata::RT_tries()];
360: }
361: return undef;
362: }
363:
364: sub Process_Row {
365: my ($row) = @_;
366: my %RowData;
367: my ($student_id,$award,$tries,$time) = @$row;
368: return %RowData;
369: }
370:
371: #########################################################
372: #########################################################
373: ##
374: ## Generic Interface Routines
375: ##
376: #########################################################
377: #########################################################
378: sub CreateInterface {
379: ##
380: ## Environment variable initialization
381: if (! exists$ENV{'form.AnalyzeOver'}) {
382: $ENV{'form.AnalyzeOver'} = 'Tries';
383: }
384: ##
385: ## Build the menu
386: my $Str = '';
387: $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Submission Time Plots');
388: $Str .= '<p>';
389: $Str .= '<table cellspacing="5">'."\n";
390: $Str .= '<tr>';
391: $Str .= '<th align="center">'.&mt('Sections').'</th>';
392: $Str .= '<th align="center">'.&mt('Enrollment Status').'</th>';
393: $Str .= '</tr>'."\n";
394: ##
395: ##
396: $Str .= '<tr><td align="center">'."\n";
397: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',4);
398: $Str .= '</td>';
399: #
400: $Str .= '<td align="center">';
401: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,4);
402: $Str .= '</td>';
403: #
404: $Str .= '</tr>'."\n";
405: $Str .= '</table>'."\n";
406: #
407: $Str .= '<nobr>'.&mt('Status: [_1]',
408: '<input type="text" '.
409: 'name="stats_status" size="60" value="" />').
410: '</nobr>'.'</p>';
411: ##
412: return $Str;
413: }
414:
415: 1;
416:
417: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonsubmissiontimeanalysis.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface / statistics