1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonsubmissiontimeanalysis.pm,v 1.38 2020/11/18 15:31:40 raeburn 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::lonquickgrades();
35: use Apache::loncoursedata();
36: use Apache::lonstatistics;
37: use Apache::lonstathelpers;
38: use Apache::lonlocal;
39: use HTML::Entities();
40: use Time::Local();
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: $r->print(&Apache::lonhtmlcommon::breadcrumbs('Submission Time Plots'));
71: &Apache::lonquickgrades::startGradeScreen($r,'statistics');
72: $r->print(&CreateInterface());
73: #
74: my @Students = @Apache::lonstatistics::Students;
75: #
76: if (@Students < 1) {
77: $r->print('<div class="LC_warning">'
78: .&mt('There are no students in the sections selected.')
79: .'</div>'
80: );
81: }
82: #
83: my @CacheButtonHTML =
84: &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
85: $r->rflush();
86: #
87: if (! exists($env{'form.problemchoice'}) ||
88: exists($env{'form.SelectAnother'})) {
89: my $submit_button = '<input type="submit" name="" value="'.
90: # &mt('Graph Problem Submission Times').'" />';
91: &mt('Generate Graph').'" />';
92: $r->print($submit_button.' 'x5);
93: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
94: $r->print(&Apache::lonstathelpers::problem_selector('.',
95: $submit_button));
96: } else {
97: foreach my $button (@SubmitButtons) {
98: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
99: 'value="'.&mt($button->{'text'}).'" />');
100: $r->print(' 'x5);
101: }
102: foreach my $html (@CacheButtonHTML) {
103: $r->print($html.(' 'x5));
104: }
105: $r->rflush();
106: #
107: # Determine which problem we are to analyze
108: my ($navmap,$current_problem) = &get_current_problem(); # need to retrieve $navmap
109: # to support $resource->* calls
110: # for src and compTitle (below)
111: #
112: # Store the current problem choice and send it out in the form
113: $env{'form.problemchoice'} =
114: &Apache::lonstathelpers::make_target_id($current_problem);
115: $r->print('<input type="hidden" name="problemchoice" value="'.
116: $env{'form.problemchoice'}.'" />');
117: #
118: $r->print('<hr />');
119: $r->rflush();
120: #
121: my $resource = $current_problem->{'resource'};
122: if (! defined($resource)) {
123: $r->print('<div class="LC_warning">'
124: .&mt('Resource is undefined.')
125: .'</div>'
126: );
127: } else {
128: $r->print('<h1>'.$resource->compTitle.'</h1>');
129: $r->print('<h3>'.$resource->src.'</h3>');
130: $r->print('<p>'.
131: &Apache::lonstatistics::section_and_enrollment_description().
132: '</p>');
133: $r->rflush();
134: $r->print(&Apache::lonstathelpers::render_resource($resource));
135: $r->print('<br />');
136: $r->rflush();
137: if (@Students) {
138: $r->print(&analyze_times($r,$resource->symb,\@Students,
139: $current_problem->{'part'}));
140: }
141: }
142: $r->print('<hr />');
143: }
144: }
145:
146: sub get_current_problem {
147: my $current_problem = &Apache::lonstathelpers::get_target_from_id
148: ($env{'form.problemchoice'});
149: my ($navmap,$prev,$curr,$next) =
150: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
151: '.',
152: 'part');
153: if (exists($env{'form.PrevProblemAnalysis'}) && defined($prev)) {
154: $current_problem = $prev;
155: } elsif (exists($env{'form.NextProblemAnalysis'}) && defined($next)) {
156: $current_problem = $next;
157: } else {
158: $current_problem = $curr;
159: }
160: return ($navmap,$current_problem);
161: }
162:
163: #########################################################
164: #########################################################
165: ##
166: ## Time Analysis
167: ##
168: #########################################################
169: #########################################################
170: sub get_week_start {
171: my ($randomtime) = @_;
172: my ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) =
173: localtime($randomtime);
174: $randomtime -= $wday * 86400;
175: ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) =
176: localtime($randomtime);
177: my $week_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
178: return $week_start;
179: }
180:
181: sub analyze_times {
182: my ($r,$symb,$students,$part) = @_;
183: my $htmltable;
184: #
185: # Convenience arrays
186: my @FullWeekDay = (qw/Sunday Monday Tuesday Wednesday Thursday Friday
187: Saturday/);
188: my @WeekDay = (qw/SUN MON TUE WED THU FRI SAT SUN/);
189: my @Month = (qw/Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec/);
190: #
191: my $html; # holds results of analysis
192: # Get the data
193: my $SubData = &Apache::loncoursedata::get_response_time_data
194: ([&Apache::lonstatistics::get_selected_sections()],
195: [&Apache::lonstatistics::get_selected_groups()],
196: $Apache::lonstatistics::enrollment_status,
197: $symb,$part);
198: if (! defined($SubData) || ! ref($SubData)) {
199: $html.= '<div class="LC_warning">'
200: .&mt('There is no submission data for this problem at all.')
201: .'</div>';
202: return $html;
203: }
204: my $NumSub = scalar(@{$SubData});
205: if (! @{$SubData}) {
206: $html.= '<div class="LC_warning">'
207: .&mt('There is no submission data for this problem.')
208: .'</div>';
209: return $html;
210: }
211: # Process the data
212: #
213: my (undef,undef,undef,$mday,$month,$year,$wday,$yday,$isdst) =
214: localtime(&get_time_from_row($SubData->[0]));
215: my $day_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
216: #
217: # Configure the bins used to store the data.
218: my $binsize = 3600; # seconds
219: my $bins_per_day = 86400/$binsize;
220: my $bincount = 0;
221: my $endtime = $day_start;
222: #
223: # Initialize loop variables
224: my $max; # The sum of @Ydata
225: my @Ydata=(0); # number of submissions
226: my @AnsData=(0); # number of correct submissions
227: my @Xlabel=($WeekDay[$wday]); # Labels of itmes
228: my @BinEnd=($endtime); # The end time of each bin
229: my $cumulative_answers = 0; # The sum of @AnsData
230: my %students; # which students have attempted the problem?
231: #
232: foreach my $row (@$SubData) {
233: my $subtime = &get_time_from_row($row);
234: while ($subtime > $endtime && $endtime < time) {
235: # Create a new bin
236: $bincount++;
237: $Ydata[$bincount] = 0;
238: $AnsData[$bincount] = 0;
239: $endtime += $binsize;
240: $BinEnd[$bincount] = $endtime;
241: if ($bincount % (86400/$binsize) == 0) {
242: $wday++;
243: $wday %= 7;
244: $Xlabel[$bincount] = $WeekDay[$wday];
245: } else {
246: $Xlabel[$bincount] = '';
247: }
248: }
249: $Ydata[$bincount]++;
250: $max = $Ydata[$bincount] if ($max < $Ydata[$bincount]);
251: $AnsData[$bincount] += &successful_submission($row);
252: $cumulative_answers += &successful_submission($row);
253: $students{$row->[&Apache::loncoursedata::RT_student_id()]}++;
254: }
255: #
256: # Pad the data to a full day
257: while ($bincount % $bins_per_day != 0) {
258: $bincount++;
259: $Ydata[$bincount]=0;
260: $AnsData[$bincount]=0;
261: $endtime += $binsize;
262: $BinEnd[$bincount]=$endtime;
263: if ($bincount % (86400/$binsize) == 0) {
264: $wday ++;
265: $wday %= 7;
266: $Xlabel[$bincount] = $WeekDay[$wday];
267: } else {
268: $Xlabel[$bincount] = '';
269: }
270: }
271: my $numstudents = scalar(keys(%students));
272: #
273: # Determine a nice maximum value to use
274: foreach my $maximum (10,15,20,25,30,40,50,60,70,80,90,100,
275: 120,150,200,250,300,350,400,450,500,
276: 600,700,800,900,1000,1100,1200,1500,2000,
277: 2500,3000,4000,5000) {
278: if ($max < $maximum) {
279: $max = $maximum;
280: last;
281: }
282: }
283: #
284: # Build the data table
285: $htmltable = '<br><h3>'.&mt('Student submission data').'</h3><p>'.
286: &Apache::loncommon::start_data_table().
287: &Apache::loncommon::start_data_table_header_row().
288: &Apache::loncommon::start_data_table_row().
289: '<th valign="bottom">'.&mt('Begin').'</th>'.
290: '<th valign="bottom">'.&mt('End').'</th>'.
291: '<th valign="bottom">'.&mt('Submissions (plotted)').'</th>'.
292: '<th valign="bottom">'.&mt('Correct Submissions (not plotted)').'</th>'.
293: '<th valign="bottom">'.&mt('Cumulative Correct of those attempting the problem (not plotted)').'</th>'.
294: '<th valign="bottom">'.&mt('Cumulative Percent Correct of those attempting the problem (not plotted)').'</th>'.
295: '<th valign="bottom">'.&mt('Cumulative Percent Correct of selected students (plotted)').'</th>'.
296: &Apache::loncommon::end_data_table_row().
297: &Apache::loncommon::end_data_table_header_row().
298: '<tbody>';
299: my @CumulativeCorrect=(0);
300: my @corr_as_percent_of_selected;
301: my @corr_as_percent_of_answering;
302: for (my $i=0;$i<=$#Ydata;$i++) {
303: $CumulativeCorrect[$i]=$CumulativeCorrect[-1]+$AnsData[$i];
304: $corr_as_percent_of_answering[$i] =
305: sprintf('%3.1f',100*$CumulativeCorrect[$i]/$numstudents);
306: $corr_as_percent_of_selected[$i] =
307: sprintf('%3.1f',100*$CumulativeCorrect[$i]/scalar(@$students));
308: if ($Ydata[$i] != 0) {
309: next if (! defined($BinEnd[$i]) || $BinEnd[$i] == 0);
310: $htmltable .=
311: &Apache::loncommon::start_data_table_row().
312: '<td align="right"><span class="LC_nobreak">'.
313: &Apache::lonlocal::locallocaltime($BinEnd[$i]-$binsize).
314: '</span></td>'.
315: '<td align="right"><span class="LC_nobreak">'.
316: &Apache::lonlocal::locallocaltime($BinEnd[$i]).'</td>'.
317: '</span></td>'.
318: '<td align="right">'.$Ydata[$i].(' 'x3).'</td>'.
319: '<td align="right">'.$AnsData[$i].(' 'x3).'</td>'.
320: '<td align="right">'.$CumulativeCorrect[$i].'</td>'.
321: '<td align="right">'.$corr_as_percent_of_answering[$i].'</td>'.
322: '<td align="right">'.$corr_as_percent_of_selected[$i].'</td>'.
323: &Apache::loncommon::end_data_table_row().$/;
324: }
325: }
326: $htmltable .= '</tbody>'.&Apache::loncommon::end_data_table().'</p>';
327: #
328: # Build the plot
329: my $title = '';#'Number of Submissions and Number Correct';
330: my $xlabel;
331: (undef,undef,undef,$mday,$month,$year,$wday) = localtime($day_start);
332: $xlabel .= $FullWeekDay[$wday].' '.
333: join(' ',($Month[$month],$mday,1900+$year)).' - ';
334: (undef,undef,undef,$mday,$month,$year,$wday) = localtime($endtime);
335: $xlabel .= $FullWeekDay[$wday].' '.
336: join(' ',($Month[$month],$mday,1900+$year));
337: my $width = 50+2*$bincount;
338: if ($width < 250) {
339: $width = 250;
340: }
341: #
342: $html .= &Apache::loncommon::DrawXYYGraph($title,
343: $xlabel,
344: 'Submissions vs Time',
345: $plotcolors,
346: \@Xlabel,
347: \@Ydata,0,$max,
348: \@corr_as_percent_of_selected,0,100,
349: (xskip => $bins_per_day,
350: x_ticks => $bins_per_day,
351: x_tick_offset => $bins_per_day,
352: width => $width,
353: y1_label=>'Number of Submissions per hour',
354: y2_label=>'Percent of Students answering Correctly',
355: 'data.1.label'=>'Submissions per hour',
356: 'data.2.label'=>'Percent correct',
357: )
358: );
359: $html .= '<br />'.$htmltable;
360: return $html;
361: }
362:
363: sub successful_submission {
364: my ($row) = @_;
365: if (ref($row) eq 'ARRAY') {
366: return $row->[&Apache::loncoursedata::RT_awarded()];
367: }
368: return undef;
369: }
370:
371: sub get_time_from_row {
372: my ($row) = @_;
373: if (ref($row) eq 'ARRAY') {
374: return $row->[&Apache::loncoursedata::RT_timestamp()];
375: }
376: return undef;
377: }
378:
379: sub get_tries_from_row {
380: my ($row) = @_;
381: if (ref($row) eq 'ARRAY') {
382: return $row->[&Apache::loncoursedata::RT_tries()];
383: }
384: return undef;
385: }
386:
387: sub Process_Row {
388: my ($row) = @_;
389: my %RowData;
390: my ($student_id,$award,$tries,$time) = @$row;
391: return %RowData;
392: }
393:
394: #########################################################
395: #########################################################
396: ##
397: ## Generic Interface Routines
398: ##
399: #########################################################
400: #########################################################
401: sub CreateInterface {
402: ##
403: ## Environment variable initialization
404: if (! exists$env{'form.AnalyzeOver'}) {
405: $env{'form.AnalyzeOver'} = 'Tries';
406: }
407: ##
408: ## Build the menu
409: my $Str = '';
410: $Str .= '<p>';
411: $Str .= &Apache::loncommon::start_data_table();
412: $Str .= &Apache::loncommon::start_data_table_header_row();
413: $Str .= '<th>'.&mt('Sections').'</th>';
414: $Str .= '<th>'.&mt('Groups').'</th>';
415: $Str .= '<th>'.&mt('Access Status').'</th>';
416: $Str .= &Apache::loncommon::end_data_table_header_row();
417: ##
418: ##
419: $Str .= &Apache::loncommon::start_data_table_row();
420: $Str .= '<td align="center">'."\n";
421: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',4);
422: $Str .= '</td>';
423: #
424: $Str .= '<td align="center">'."\n";
425: $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',4);
426: $Str .= '</td>';
427: #
428: $Str .= '<td align="center">';
429: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,4);
430: $Str .= '</td>';
431: #
432: $Str .= &Apache::loncommon::end_data_table_row();
433: $Str .= &Apache::loncommon::end_data_table();
434: #
435: $Str .= '</p>';
436: ##
437: return $Str;
438: }
439:
440: 1;
441:
442: __END__
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