File:
[LON-CAPA] /
loncom /
interface /
statistics /
lonproblemanalysis.pm
Revision
1.121:
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Tue Apr 19 13:59:34 2005 UTC (19 years, 2 months ago) by
matthew
Branches:
MAIN
CVS tags:
version_2_0_X,
version_2_0_2,
version_2_0_1,
version_2_0_0,
version_1_99_3,
version_1_99_2,
version_1_99_1_tmcc,
version_1_99_1,
version_1_99_0,
HEAD
Bug 2989: Need more submit buttons on problem selection pages. Problem
analysis and submission time analysis now have submit buttons after each
sequence/folder.
1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.121 2005/04/19 13:59:34 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: package Apache::lonproblemanalysis;
28:
29: use strict;
30: use Apache::lonnet;
31: use Apache::loncommon();
32: use Apache::lonhtmlcommon();
33: use Apache::loncoursedata();
34: use Apache::lonstatistics;
35: use Apache::lonlocal;
36: use Apache::lonstathelpers();
37: use Apache::lonstudentsubmissions();
38: use HTML::Entities();
39: use Time::Local();
40: use capa;
41:
42: my $plotcolors = ['#33ff00',
43: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
44: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
45: ];
46:
47: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
48: text => 'Previous Problem' },
49: { name => 'ProblemAnalysis',
50: text => 'Analyze Problem Again' },
51: { name => 'NextProblemAnalysis',
52: text => 'Next Problem' },
53: { name => 'break'},
54: { name => 'SelectAnother',
55: text => 'Choose a different Problem' });
56:
57: sub BuildProblemAnalysisPage {
58: my ($r,$c)=@_;
59: #
60: my %Saveable_Parameters = ('Status' => 'scalar',
61: 'Section' => 'array',
62: 'NumPlots' => 'scalar',
63: 'AnalyzeOver' => 'scalar',
64: );
65: &Apache::loncommon::store_course_settings('problem_analysis',
66: \%Saveable_Parameters);
67: &Apache::loncommon::restore_course_settings('problem_analysis',
68: \%Saveable_Parameters);
69: #
70: &Apache::lonstatistics::PrepareClasslist();
71: #
72: $r->print(&CreateInterface());
73: #
74: my @Students = @Apache::lonstatistics::Students;
75: #
76: if (@Students < 1 && exists($env{'form.firstrun'})) {
77: $r->print('<h2>There are no students in the sections selected</h2>');
78: }
79: #
80: my @CacheButtonHTML =
81: &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
82: $r->rflush();
83: #
84: my $problem_types = '(option|radiobutton|numerical)';
85: if (exists($env{'form.problemchoice'}) &&
86: ! exists($env{'form.SelectAnother'})) {
87: foreach my $button (@SubmitButtons) {
88: if ($button->{'name'} eq 'break') {
89: $r->print("<br />\n");
90: } else {
91: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
92: 'value="'.&mt($button->{'text'}).'" />');
93: $r->print(' 'x5);
94: }
95: }
96: foreach my $html (@CacheButtonHTML) {
97: $r->print($html.(' 'x5));
98: }
99: #
100: $r->print(&Apache::lonstathelpers::submission_report_form
101: ('problem_analysis'));
102: #
103: $r->print('<hr />');
104: $r->rflush();
105: #
106: # Determine which problem we are to analyze
107: my $current_problem = &Apache::lonstathelpers::get_target_from_id
108: ($env{'form.problemchoice'});
109: #
110: my ($navmap,$prev,$curr,$next) =
111: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
112: $problem_types,
113: 'response',
114: );
115: if (exists($env{'form.PrevProblemAnalysis'}) && defined($prev)) {
116: $current_problem = $prev;
117: } elsif (exists($env{'form.NextProblemAnalysis'}) && defined($next)) {
118: $current_problem = $next;
119: } else {
120: $current_problem = $curr;
121: }
122: #
123: # Store the current problem choice and send it out in the form
124: $env{'form.problemchoice'} =
125: &Apache::lonstathelpers::make_target_id($current_problem);
126: $r->print('<input type="hidden" name="problemchoice" value="'.
127: $env{'form.problemchoice'}.'" />');
128: #
129: if (! defined($current_problem->{'resource'})) {
130: $r->print('resource is undefined');
131: } else {
132: my $resource = $current_problem->{'resource'};
133: $r->print('<h1>'.$resource->compTitle.'</h1>');
134: $r->print('<h3>'.$resource->src.'</h3>');
135: $r->print('<h4>'.&Apache::lonstatistics::section_and_enrollment_description().'</h4>');
136: if ($env{'form.show_prob'} eq 'true') {
137: $r->print(&Apache::lonstathelpers::render_resource($resource));
138: }
139: $r->rflush();
140: my %Data = &Apache::lonstathelpers::get_problem_data
141: ($resource->src);
142: my $problem_data = $Data{$current_problem->{'part'}.
143: '.'.
144: $current_problem->{'respid'}};
145: if ($current_problem->{'resptype'} eq 'option') {
146: &OptionResponseAnalysis($r,$current_problem,
147: $problem_data,
148: \@Students);
149: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
150: &radio_response_analysis($r,$current_problem,
151: $problem_data,
152: \@Students);
153: } elsif ($current_problem->{'resptype'} eq 'numerical') {
154: &numerical_response_analysis($r,$current_problem,
155: $problem_data,\@Students);
156: } else {
157: $r->print('<h2>Analysis of '.$current_problem->{'resptype'}.' is not supported</h2>');
158: }
159: }
160: $r->print('<hr />');
161: } else {
162: my $submit_button = '<input type="submit" '.
163: 'name="ProblemAnalysis" value="'.
164: &mt('Analyze Problem').'" />';
165: $r->print($submit_button);
166: $r->print(' 'x5);
167: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
168: $r->print(&Apache::lonstathelpers::problem_selector($problem_types,
169: $submit_button));
170: }
171: }
172:
173: #########################################################
174: #########################################################
175: ##
176: ## Numerical Response Routines
177: ##
178: #########################################################
179: #########################################################
180: sub numerical_response_analysis {
181: my ($r,$problem,$problem_analysis,$students) = @_;
182: my $c = $r->connection();
183: #
184: if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) {
185: $r->print('Bad request');
186: }
187: #
188: my ($resource,$partid,$respid) = ($problem->{'resource'},
189: $problem->{'part'},
190: $problem->{'respid'});
191: # Gather student data
192: my $response_data = &Apache::loncoursedata::get_response_data
193: ([&Apache::lonstatistics::get_selected_sections()],
194: $Apache::lonstatistics::enrollment_status,
195: $resource->symb,$respid);
196: #
197: $problem_analysis->{'answercomputed'} = 1;
198: if ($problem_analysis->{'answercomputed'}) {
199: my $answers =
200: &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$students,
201: 'Statistics',
202: 'stats_status');
203: $r->print(&numerical_one_dimensional_plot($r,600,150,$answers));
204: }
205: #
206: if (ref($response_data) ne 'ARRAY') {
207: $r->print('<h2>'.
208: &mt('There is no submission data for this resource').
209: '</h2>');
210: return;
211: }
212: my $analysis_html = '<table>';
213: for (my $plot_num = 1;$plot_num<=$env{'form.NumPlots'};$plot_num++) {
214: my $restriction_function;
215: my $header_message;
216: my $stats_message;
217: my $post_message; # passed through &mt sooner rather than later
218: my $no_data_message;
219: my @extra_data;
220: if ($env{'form.AnalyzeOver'} eq 'tries') {
221: $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)};
222: $header_message = 'Attempt [_1]';
223: $stats_message =
224: '[_1] submissions, [_2] correct, [_3] incorrect';
225: $post_message = '';
226: $no_data_message = 'No data exists for attempt [_1]';
227: } else {
228: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
229: ('startdate_'.$plot_num);
230: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
231: ('enddate_'.$plot_num);
232: ($starttime,$endtime) = &ensure_start_end_times
233: ($starttime,$endtime,
234: &get_time_from_row($response_data->[0]),
235: &get_time_from_row($response_data->[-1]),
236: $plot_num);
237: $header_message = 'Data from [_2] to [_3]';
238: $extra_data[0] = &Apache::lonlocal::locallocaltime($starttime);
239: $extra_data[1] = &Apache::lonlocal::locallocaltime($endtime);
240: #
241: $stats_message =
242: '[_1] submissions from [_4] students, [_2] correct, [_3] incorrect';
243: #
244: $post_message =
245: &mt('Start time: [_1]',
246: &Apache::lonhtmlcommon::date_setter
247: ('Statistics','startdate_'.$plot_num,$starttime)).
248: '<br />'.
249: &mt('End time: [_1]',
250: &Apache::lonhtmlcommon::date_setter
251: ('Statistics','enddate_'.$plot_num,$endtime));
252: $restriction_function =
253: sub {
254: my $t = $_[0]->{'timestamp'};
255: if ($t >= $starttime && $t < $endtime) {
256: return 1;
257: } else {
258: return 0;
259: }
260: };
261: $no_data_message = 'No data for [_2] to [_3]';
262: }
263: #
264: my ($correct,$answers) =
265: &numerical_determine_answers($r,$resource,$partid,
266: $respid,$students);
267: if ($c->aborted()) { return; };
268: #
269: my ($responses,$stats) =
270: &numerical_classify_responses($response_data,$correct,
271: $restriction_function);
272: if ($stats->{'submission_count'} == 0) {
273: $analysis_html.=
274: '<tr><td colspan="2"><font size="+1"><b>'.
275: &mt($no_data_message,$plot_num,@extra_data).
276: '</b></font></td></tr>';
277: } else {
278: $analysis_html.=
279: '<tr><td colspan="2" align="center"><font size="+1"><b>'.
280: &mt($header_message,$plot_num,@extra_data).
281: '</b></font></td></tr>'.
282: '<tr><td colspan="2" align="center">'.
283: &mt($stats_message,
284: $stats->{'submission_count'},
285: $stats->{'correct_count'},
286: $stats->{'incorrect_count'},
287: $stats->{'students'},
288: @extra_data).
289: '</td></tr>'.
290: '<tr>'.'<td valign="top" align="center">'.
291: &numerical_plot_percent($r,$responses,$stats).'</td>'.
292: '<td align="center" valign="top">'.
293: &numerical_plot_differences($r,$responses,$stats).'</td>'.
294: '</tr>';
295: }
296: if ($post_message ne '') {
297: $analysis_html .=
298: '<tr><td colspan="2">'.$post_message.'</td></tr>';
299: }
300: }
301: $analysis_html.='</table>';
302: $r->print($analysis_html);
303: #
304: return;
305: }
306:
307: sub numerical_plot_percent {
308: my ($r,$responses,$stats) = @_;
309: #
310: my $total = $stats->{'submission_count'};
311: return '' if ($total == 0);
312: my $max_bins = 50;
313: my $lowest_percent = $stats->{'min_percent'};
314: my $highest_percent = $stats->{'max_percent'};
315: my $percent_spread = $highest_percent - $lowest_percent;
316: foreach (qw/20 30 40 50 100 200/) {
317: if ($percent_spread < $_) {
318: $highest_percent =$_/2;
319: last;
320: }
321: }
322: my $bin_size = 1;
323: foreach (qw/0.01 0.05 0.1 0.5 1 2 5 10 20 25 50 100/) {
324: if ($lowest_percent/2 < $_){
325: $bin_size = $_;
326: last;
327: }
328: }
329: my @bins;
330: for (my $bin = -$highest_percent;$bin<0;$bin+=$bin_size) {
331: push (@bins,$bin);
332: }
333: for (my $bin = 0; $bin<$highest_percent;$bin+=$bin_size) {
334: push (@bins,$bin);
335: }
336: push(@bins,$highest_percent);
337: #
338: my @correct;
339: my @incorrect;
340: my @count;
341: while (my ($ans,$submissions) = each(%$responses)) {
342: while (my ($submission,$counts) = each(%$submissions)) {
343: my ($correct_count,$incorrect_count) = @$counts;
344: my $scaled_value = 100*($submission-$ans)/abs($ans);
345: if ($scaled_value < $bins[0]) {
346: $bins[0]=$scaled_value -1;
347: }
348: my $bin;
349: for ($bin=0;$bin<$#bins;$bin++) {
350: last if ($bins[$bin]>$scaled_value);
351: }
352: $correct[$bin-1]+=$correct_count;
353: $incorrect[$bin-1]+=$incorrect_count;
354: $count[$bin-1]+=$correct_count+$incorrect_count;
355: }
356: }
357: #
358: my @plot_correct = @correct;
359: my @plot_incorrect = @incorrect;
360: my $max;
361: for (my $i=0;$i<$#bins;$i++) {
362: $plot_correct[$i] *= 100/$total;
363: $plot_incorrect[$i] *= 100/$total;
364: if (! defined($max) ||
365: $max < $plot_correct[$i]+$plot_incorrect[$i] ) {
366: $max = $plot_correct[$i]+$plot_incorrect[$i];
367: }
368: }
369: foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) {
370: if ($max <$_) { $max = $_; last; }
371: }
372: #
373: my $title = &mt('Percent Difference');
374: my @labels = (1..scalar(@bins)-1);
375: my $graph = &Apache::loncommon::DrawBarGraph
376: ($title,'Percent Difference from Correct','Percent of Answers',
377: $max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect,
378: {xskip=>1});
379: #
380: my $table = $graph.$/.
381: &numerical_bin_table(\@bins,\@labels,\@incorrect,\@correct,\@count).$/;
382: return $table;
383: }
384:
385: sub numerical_plot_differences {
386: my ($r,$responses,$stats) = @_;
387: #
388: my $total = $stats->{'submission_count'};
389: return '' if ($total == 0);
390: my $max_bins = 21;
391: my $min_bin_size = $stats->{'min_abs'};
392: my $low_bin = $stats->{'lowest_ans'}-$stats->{'max_bin_size'};
393: my $high_bin = $stats->{'highest_ans'}+$stats->{'max_bin_size'};
394: if ($high_bin > 0 && $low_bin > -$high_bin) {
395: $low_bin = -$high_bin;
396: } elsif ($low_bin < 0 && $high_bin < -$low_bin) {
397: $high_bin = -$low_bin;
398: }
399: if (($high_bin -$low_bin)/$min_bin_size * 2 > $max_bins) {
400: $min_bin_size = abs($high_bin - $low_bin) / $max_bins * 2;
401: }
402: my @bins;
403: for (my $num = $low_bin;$num <= $high_bin;$num+=($min_bin_size/2)) {
404: push(@bins,$num);
405: }
406: #
407: my @correct;
408: my @incorrect;
409: my @count;
410: while (my ($ans,$submissions) = each(%$responses)) {
411: while (my ($submission,$counts) = each(%$submissions)) {
412: my ($correct_count,$incorrect_count) = @$counts;
413: my $scaled_value = $submission-$ans;
414: if ($scaled_value < $bins[0]) {
415: $bins[0]=$scaled_value-1;
416: }
417: my $bin=0;
418: for ($bin=0;$bin<$#bins;$bin++) {
419: last if ($bins[$bin]>$scaled_value);
420: }
421: $correct[$bin-1]+=$correct_count;
422: $incorrect[$bin-1]+=$incorrect_count;
423: $count[$bin-1]+=$correct_count+$incorrect_count;
424: }
425: }
426: my @plot_correct = @correct;
427: my @plot_incorrect = @incorrect;
428: my $max;
429: for (my $i=0;$i<=$#bins;$i++) {
430: $plot_correct[$i] *= 100/$total;
431: $plot_incorrect[$i] *= 100/$total;
432: if (! defined($max) ||
433: $max < $plot_correct[$i]+$plot_incorrect[$i] ) {
434: $max = $plot_correct[$i]+$plot_incorrect[$i];
435: }
436: }
437: foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) {
438: if ($max <$_) { $max = $_; last; }
439: }
440: #
441: my $title = &mt('Difference between submission and correct');
442: my @labels = (1..scalar(@bins)-1);
443: my $graph = &Apache::loncommon::DrawBarGraph
444: ($title,'Difference from Correct','Percent of Answers',
445: $max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect,
446: {xskip=>1});
447: #
448: my $table = $graph.$/.
449: &numerical_bin_table(\@bins,\@labels,\@incorrect,\@correct,\@count).$/;
450: return $table;
451: }
452:
453: sub numerical_classify_responses {
454: my ($full_row_data,$correct,$function) = @_;
455: my %submission_data;
456: my %students;
457: my %stats;
458: my $max=0;
459: foreach my $row (@$full_row_data) {
460: my %subm = &hashify_attempt($row);
461: if (ref($correct) eq 'HASH') {
462: my $s_correct = $correct->{$subm{'student'}};
463: $subm{'correct'} = $s_correct->{'answer'};
464: foreach my $item ('unit','ans_low','ans_high') {
465: $subm{$item} = $s_correct->{$item};
466: }
467: } else { # This probably never happens....
468: $subm{'correct'} = $correct->{'answer'};
469: $subm{'unit'} = $correct->{'unit'};
470: }
471: #
472: my $abs_low =abs($subm{'correct'}-$subm{'ans_low'});
473: my $abs_high=abs($subm{'correct'}-$subm{'ans_high'});
474: if (! defined($stats{'min_abs'}) ||
475: $stats{'min_abs'} > $abs_low) {
476: $stats{'min_abs'} = $abs_low;
477: }
478: if ($stats{'min_abs'} > $abs_high) {
479: $stats{'min_abs'} = $abs_high;
480: }
481: if (! defined($stats{'max_abs'}) ||
482: $stats{'max_abs'} < $abs_low) {
483: $stats{'max_abs'} = $abs_low;
484: }
485: if ($stats{'max_abs'} < $abs_high) {
486: $stats{'max_abs'} = $abs_high;
487: }
488: my $low_percent;
489: my $high_percent;
490: if (defined($subm{'correct'}) && $subm{'correct'} != 0) {
491: $low_percent = 100 * abs($abs_low / $subm{'correct'});
492: $high_percent = 100 * abs($abs_high / $subm{'correct'});
493: }
494: if (! defined($stats{'min_percent'}) ||
495: $stats{'min_percent'} > $low_percent) {
496: $stats{'min_percent'} = $low_percent;
497: }
498: if ($stats{'min_percent'} > $high_percent) {
499: $stats{'min_percent'} = $high_percent;
500: }
501: if (! defined($stats{'max_percent'}) ||
502: $stats{'max_percent'} < $low_percent) {
503: $stats{'max_percent'} = $low_percent;
504: }
505: if ($stats{'max_percent'} < $high_percent) {
506: $stats{'max_percent'} = $high_percent;
507: }
508: if (! defined($stats{'lowest_ans'}) ||
509: $stats{'lowest_ans'} > $subm{'correct'}) {
510: $stats{'lowest_ans'} = $subm{'correct'};
511: }
512: if (! defined($stats{'highest_ans'}) ||
513: $stats{'highest_ans'} < $subm{'correct'}) {
514: $stats{'highest_ans'} = $subm{'correct'};
515: }
516: #
517: $subm{'submission'} =~ s/=\d+\s*$//;
518: if (&$function(\%subm)) {
519: my $scaled = '1';
520: my ($sname,$sdom) = split(':',$subm{'student'});
521: my ($myunit,$mysub) = ($subm{'unit'},$subm{'submission'});
522: my $result =
523: &capa::caparesponse_get_real_response($myunit,
524: $mysub,
525: \$scaled);
526: # &Apache::lonnet::logthis('scaled = '.$scaled.' result ='.$result);
527: next if (! defined($scaled));
528: # next if ($result ne '6');
529: my $submission = $scaled;
530: $students{$subm{'student'}}++;
531: $stats{'submission_count'}++;
532: if (&numerical_submission_is_correct($subm{'award'})) {
533: $stats{'correct_count'}++;
534: $submission_data{$subm{'correct'}}->{$submission}->[0]++;
535: } elsif (&numerical_submission_is_incorrect($subm{'award'})) {
536: $stats{'incorrect_count'}++;
537: $submission_data{$subm{'correct'}}->{$submission}->[1]++;
538: }
539: }
540: }
541: $stats{'correct_count'} |= 0;
542: $stats{'incorrect_count'} |= 0;
543: $stats{'students'}=scalar(keys(%students));
544: return (\%submission_data,\%stats);
545: }
546:
547: sub numerical_submission_is_correct {
548: my ($award) = @_;
549: if ($award =~ /^(APPROX_ANS|EXACT_ANS)$/) {
550: return 1;
551: } else {
552: return 0;
553: }
554: }
555:
556: sub numerical_submission_is_incorrect {
557: my ($award) = @_;
558: if ($award =~ /^(INCORRECT)$/) {
559: return 1;
560: } else {
561: return 0;
562: }
563: }
564:
565: sub numerical_bin_table {
566: my ($bins,$labels,$incorrect,$correct,$count)=@_;
567: my $table =
568: '<table><tr><th>'.&mt('Bar').'</th>'.
569: '<th colspan="3">'.&mt('Range').'</th>'.
570: '<th>'.&mt('Incorrect').'</th>'.
571: '<th>'.&mt('Correct').'</th>'.
572: '<th>'.&mt('Count').'</th>'.
573: '</tr>'.$/;
574: for (my $i=0;$i<scalar(@{$bins}-1);$i++) {
575: my $lownum = $bins->[$i];
576: if ($i == 0) { $lownum = '-∞'; }
577: my $highnum = $bins->[$i+1];
578: if ($i == scalar(@{$bins})-2) { $highnum = '∞'; }
579: $table .=
580: '<tr>'.
581: '<td>'.$labels->[$i].'</td>'.
582: '<td align="right">'.$lownum.'</td>'.
583: '<td> - </td>'.
584: '<td align="right">'.$highnum.'</td>'.
585: '<td align="right">'.$incorrect->[$i].'</td>'.
586: '<td align="right">'.$correct->[$i].'</td>'.
587: '<td align="right">'.$count->[$i].'</td>'.
588: '</tr>'.$/;
589: }
590: $table.= '</table>';
591: return $table;
592: }
593:
594: sub numerical_determine_answers {
595: my ($r,$resource,$partid,$respid,$students)=@_;
596: my $c = $r->connection();
597: #
598: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
599: ($r,'Student Answer Compilation Status',
600: 'Student Answer Compilation Progress', scalar(@$students),
601: 'inline',undef,'Statistics','stats_status');
602: #
603: # Read in the cache (if it exists) before we start timing things.
604: &Apache::lonstathelpers::ensure_proper_cache($resource->{'symb'});
605: #
606: my $correct;
607: my %answers;
608: foreach my $student (@$students) {
609: last if ($c->aborted());
610: my $sname = $student->{'username'};
611: my $sdom = $student->{'domain'};
612: # analyze problem
613: my $analysis =
614: &Apache::lonstathelpers::analyze_problem_as_student($resource,
615: $sname,
616: $sdom);
617: # make the key
618: my $key = $partid.'.'.$respid;
619: foreach my $item ('answer','unit','ans_high','ans_low') {
620: $correct->{$sname.':'.$sdom}->{$item} =
621: $analysis->{$key.'.'.$item}->[0];
622: }
623: $answers{$analysis->{$key.'.answer'}->[0]}++;
624: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
625: &mt('last student'));
626: }
627: &Apache::lonstathelpers::write_analysis_cache();
628: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
629: return ($correct,\%answers);
630: }
631:
632: #
633: # Inputs: $r, $width, $height, $data
634: # $n = number of students
635: # $data = hashref of $answer => $frequency pairs
636: sub numerical_one_dimensional_plot {
637: my ($r,$width,$height,$data)=@_;
638: #
639: # Compute data -> image scaling factors
640: my $max_y = 0;
641: my $min_x = undef;
642: my $max_x = undef;
643: my $n = 0;
644: while (my ($answer,$count) = each(%$data)) {
645: $n+=$count;
646: $max_y = $count if ($max_y < $count);
647: if (! defined($min_x) || $answer < $min_x) {
648: $min_x = $answer;
649: }
650: if (! defined($max_x) || $answer > $max_x) {
651: $max_x = $answer;
652: }
653: }
654: #
655: my $min_max_difference = $max_x - $min_x;
656: if (! defined($min_max_difference) || $min_max_difference == 0) {
657: $min_max_difference = 1;
658: }
659: my $h_scale = ($width-10)/$min_max_difference;
660: #
661: my $ticscale = 5;
662: if ($max_y * $ticscale > $height/2) {
663: $ticscale = int($height/2/$max_y);
664: $ticscale = 1 if ($ticscale < 1);
665: }
666: #
667: # Create the plot
668: my $plot =
669: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
670: while (my ($answer,$count) = each(%$data)) {
671: my $xloc = 5+$h_scale*($answer - $min_x);
672: my $top = $height/2-$count*$ticscale;
673: my $bottom = $height/2+$count*$ticscale;
674: $plot .= &line($xloc,$top,$xloc,$bottom,'888888',1);
675: }
676: #
677: # Put the scale on last to ensure it is on top of the data.
678: if ($min_x < 0 && $max_x > 0) {
679: my $circle_x = 5+$h_scale*abs($min_x); # '0' in data coordinates
680: my $r = 4;
681: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
682: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
683: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
684: } else {
685: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
686: }
687: $plot .= '</drawimage>';
688: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
689: my $result = '<table>'.
690: '<tr><td colspan="3" align="center">'.
691: '<font size="+2">'.&mt('Distribution of correct answers').'</font>'.
692: '<br />'.&mt('[_1] students, [_2] distinct correct answers',
693: $n,scalar(keys(%$data))).
694: '<br />'.&mt('Maximum number of coinciding values: [_1]',$max_y).
695: '</td></tr>'.
696: '<tr>'.
697: '<td valign="center">'.$min_x.'</td>'.
698: '<td>'.$plotresult.'</td>'.
699: '<td valign="center">'.$max_x.'</td>'.
700: '</tr>'.
701: '</table>';
702: return $result;
703: }
704:
705: ##
706: ## Helper subroutines for <drawimage>.
707: ## These should probably go somewhere more suitable soon.
708: sub line {
709: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
710: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />};
711: }
712:
713: sub text {
714: my ($x,$y,$color,$text,$font,$direction) = @_;
715: if (! defined($font) || $font !~ /^(tiny|small|medium|large|giant)$/) {
716: $font = 'medium';
717: }
718: if (! defined($direction) || $direction ne 'vertical') {
719: $direction = '';
720: }
721: return qq{<text x="$x" y="$y" color="$color" font="$font" direction="$direction" >$text</text>};
722: }
723:
724: sub rectangle {
725: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
726: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
727: }
728:
729: sub arc {
730: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
731: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
732: }
733:
734: sub circle {
735: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
736: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
737: }
738:
739: #########################################################
740: #########################################################
741: ##
742: ## Radio Response Routines
743: ##
744: #########################################################
745: #########################################################
746: sub radio_response_analysis {
747: my ($r,$problem,$problem_analysis,$students) = @_;
748: #
749: if ($env{'form.AnalyzeOver'} !~ /^(tries|time)$/) {
750: $r->print('Bad request');
751: }
752: #
753: my ($resource,$partid,$respid) = ($problem->{'resource'},
754: $problem->{'part'},
755: $problem->{'respid'});
756: #
757: my $analysis_html;
758: my $foildata = $problem_analysis->{'_Foils'};
759: my ($table,$foils,$concepts) = &build_foil_index($problem_analysis);
760: if (! defined($concepts)) {
761: $concepts = [];
762: }
763: #
764: my %true_foils;
765: my $num_true = 0;
766: if (! $problem_analysis->{'answercomputed'}) {
767: foreach my $foil (@$foils) {
768: if ($foildata->{$foil}->{'value'} eq 'true') {
769: $true_foils{$foil}++;
770: }
771: }
772: $num_true = scalar(keys(%true_foils));
773: }
774: #
775: $analysis_html .= $table;
776: # Gather student data
777: my $response_data = &Apache::loncoursedata::get_response_data
778: ([&Apache::lonstatistics::get_selected_sections()],
779: $Apache::lonstatistics::enrollment_status,
780: $resource->symb,$respid);
781: my $correct; # either a hash reference or a scalar
782: if ($problem_analysis->{'answercomputed'} || scalar(@$concepts) > 1) {
783: # This takes a while for large classes...
784: &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$students,
785: 'Statistics',
786: 'stats_status');
787: foreach my $student (@$students) {
788: my ($idx,@remainder) = split('&',$student->{'answer'});
789: my ($answer) = ($remainder[$idx]=~/^(.*)=([^=]*)$/);
790: $correct->{$student->{'username'}.':'.$student->{'domain'}}=
791: &Apache::lonnet::unescape($answer);
792: }
793: } else {
794: foreach my $foil (keys(%$foildata)) {
795: if ($foildata->{$foil}->{'value'} eq 'true') {
796: $correct = $foildata->{$foil}->{'name'};
797: }
798: }
799: }
800: #
801: if (! defined($response_data) || ref($response_data) ne 'ARRAY' ) {
802: $analysis_html = '<h2>'.
803: &mt('There is no submission data for this resource').
804: '</h2>';
805: $r->print($analysis_html);
806: return;
807: }
808: #
809: $analysis_html.='<table>';
810: for (my $plot_num = 1;$plot_num<=$env{'form.NumPlots'};$plot_num++) {
811: # classify data ->correct foil -> selected foil
812: my ($restriction_function,
813: $correct_foil_title,$incorrect_foil_title,
814: $pre_graph_text,$post_graph_text,
815: $no_data_text,@extra_data);
816: if ($env{'form.AnalyzeOver'} eq 'tries') {
817: $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)};
818: $correct_foil_title = 'Attempt '.$plot_num;
819: $incorrect_foil_title = 'Attempt '.$plot_num;
820: $pre_graph_text =
821: 'Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect';
822: $post_graph_text = '';
823: $no_data_text = 'No data exists for attempt [_1]';
824: } elsif ($env{'form.AnalyzeOver'} eq 'time') {
825: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
826: ('startdate_'.$plot_num);
827: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
828: ('enddate_'.$plot_num);
829: ($starttime,$endtime) = &ensure_start_end_times
830: ($starttime,$endtime,
831: &get_time_from_row($response_data->[0]),
832: &get_time_from_row($response_data->[-1]),
833: $plot_num);
834: $pre_graph_text =
835: 'Data from [_6] to [_7]<br /> [_2] submissions from [_5] students, [_3] correct, [_4] incorrect';
836: $extra_data[0] = &Apache::lonlocal::locallocaltime($starttime);
837: $extra_data[1] = &Apache::lonlocal::locallocaltime($endtime);
838: #
839: $post_graph_text =
840: &mt('Start time: [_1]',
841: &Apache::lonhtmlcommon::date_setter
842: ('Statistics','startdate_'.$plot_num,$starttime)).
843: '<br />'.
844: &mt('End time: [_1]',
845: &Apache::lonhtmlcommon::date_setter
846: ('Statistics','enddate_'.$plot_num,$endtime));
847: $restriction_function =
848: sub {
849: my $t = $_[0]->{'timestamp'};
850: if ($t >= $starttime && $t < $endtime) {
851: return 1;
852: } else {
853: return 0;
854: }
855: };
856: $no_data_text = 'No data for [_5] to [_6]';
857: }
858: my $foil_choice_data =
859: &classify_response_data($response_data,$correct,
860: $restriction_function);
861: # &Apache::lonstathelpers::log_hash_ref($foil_choice_data);
862: my $answers;
863: if (ref($correct)) {
864: my %tmp;
865: foreach my $foil (values(%$correct)) {
866: $tmp{$foil}++;
867: }
868: $answers = [keys(%tmp)];
869: } else {
870: $answers = [$correct];
871: }
872: # Concept Plot
873: my $concept_plot = '';
874: if (scalar(@$concepts) > 1) {
875: $concept_plot = &RR_concept_plot($concepts,$foil_choice_data,
876: 'Correct Concepts');
877: }
878: # % Choosing plot
879: my $choice_plot = &RR_create_percent_selected_plot
880: ($concepts,$foils,$foil_choice_data,$correct_foil_title);
881: # for each correct foil, how did they mark it? (stacked bar graph)
882: my ($stacked_plot,$count_by_foil);
883: if ($problem_analysis->{'answercomputed'} || $num_true > 1) {
884: ($stacked_plot,$count_by_foil) =
885: &RR_create_stacked_selection_plot($foils,$foil_choice_data,
886: $incorrect_foil_title,
887: \%true_foils);
888: }
889: #
890: if ($concept_plot ne '' ||
891: $choice_plot ne '' ||
892: $stacked_plot ne '') {
893: my $correct = $foil_choice_data->{'_correct'};
894: $correct |= 0;
895: my $incorrect = $foil_choice_data->{'_count'}-$correct;
896: $analysis_html.= '<tr><td colspan="4" align="center">'.
897: '<font size="+1">'.
898: &mt($pre_graph_text,
899: $plot_num,$foil_choice_data->{'_count'},
900: $correct,
901: $incorrect,
902: $foil_choice_data->{'_students'},
903: @extra_data).
904: '</td></tr>'.$/;
905: $analysis_html.=
906: '<tr>'.
907: '<td>'.$concept_plot.'</td>'.
908: '<td>'.$choice_plot.'</td>';
909: if ($stacked_plot ne '') {
910: $analysis_html .=
911: '<td>'.$stacked_plot.'</td>'.
912: '<td>'.&build_foil_key($foils,$count_by_foil).'</td>';
913: } else {
914: $analysis_html .= ('<td></td>'x2);
915: }
916: $analysis_html.='</tr>'.$/;
917: if (defined($post_graph_text)) {
918: $analysis_html.= '<tr><td colspan="4" align="center">'.
919: $post_graph_text.'</td></tr>'.$/;
920: }
921: } elsif ($no_data_text ne '') {
922: $analysis_html.='<tr><td colspan="4" align="center">'.
923: &mt($no_data_text,
924: $plot_num,$foil_choice_data->{'_count'},
925: $correct,
926: $foil_choice_data->{'_count'}-$correct,
927: @extra_data);
928: if (defined($post_graph_text)) {
929: $analysis_html.='<br />'.$post_graph_text;
930: }
931: $analysis_html.='</td></tr>'.$/;
932: }
933: } # end of loop for plots
934: $analysis_html.='</table>';
935: $r->print($analysis_html);
936: }
937:
938: sub ensure_start_end_times {
939: my ($start,$end,$first,$last,$plot_num) = @_;
940: if (! defined($start) || ! defined($end)) {
941: my $sec_in_day = 86400;
942: my ($sday,$smon,$syear) =
943: (localtime($last - $sec_in_day*($plot_num-1)))[3..5];
944: $start = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
945: $end = $start + $sec_in_day;
946: if ($plot_num == $env{'form.NumPlots'}) {
947: $start = $first;
948: }
949: }
950: return ($start,$end);
951: }
952:
953: sub RR_concept_plot {
954: my ($concepts,$foil_data,$title) = @_;
955: #
956: my %correct_by_concept;
957: my %incorrect_by_concept;
958: my %true;
959: foreach my $concept (@$concepts) {
960: foreach my $foil (@{$concept->{'foils'}}) {
961: next if (! exists($foil_data->{$foil}));
962: foreach my $choice (keys(%{$foil_data->{$foil}})) {
963: if ($choice eq $foil) {
964: $correct_by_concept{$concept->{'name'}} +=
965: $foil_data->{$foil}->{$choice};
966: } else {
967: $incorrect_by_concept{$concept->{'name'}} +=
968: $foil_data->{$foil}->{$choice};
969: }
970: }
971: }
972: }
973: #
974: # need arrays for incorrect and correct because we want to use different
975: # colors for them
976: my @correct;
977: #
978: my $total =0;
979: for (my $i=0;$i<scalar(@$concepts);$i++) {
980: my $concept = $concepts->[$i];
981: $correct[$i] = $correct_by_concept{$concept->{'name'}};
982: $total += $correct_by_concept{$concept->{'name'}}+
983: $incorrect_by_concept{$concept->{'name'}};
984: }
985: if ($total == 0) { return ''; };
986: for (my $i=0;$i<=$#correct;$i++) {
987: $correct[$i] = sprintf('%0f',$correct[$i]/$total*100);
988: }
989: my $xlabel = 'concept';
990: my $plot= &Apache::loncommon::DrawBarGraph($title,
991: $xlabel,
992: 'Percent Choosing',
993: 100,
994: ['#33ff00','#ff3300'],
995: undef,
996: \@correct);
997: return $plot;
998: }
999:
1000: sub RR_create_percent_selected_plot {
1001: my ($concepts,$foils,$foil_data,$title) = @_;
1002: #
1003: if ($foil_data->{'_count'} == 0) { return ''; };
1004: my %correct_selections;
1005: my %incorrect_selections;
1006: foreach my $foil (@$foils) {
1007: # foil_data has format $foil_data->{true_foil}->{selected foil}=count
1008: next if (! exists($foil_data->{$foil}));
1009: while (my ($f,$count)= each(%{$foil_data->{$foil}})) {
1010: if ($f eq $foil) {
1011: $correct_selections{$foil} += $count;
1012: } else {
1013: $incorrect_selections{$f} += $count;
1014: }
1015: }
1016: }
1017: #
1018: # need arrays for incorrect and correct because we want to use different
1019: # colors for them
1020: my @correct;
1021: my @incorrect;
1022: #
1023: my $total = $foil_data->{'_count'};
1024: for (my $i=0;$i<scalar(@$foils);$i++) {
1025: my $foil = $foils->[$i];
1026: $correct[$i] = $correct_selections{$foil};
1027: $incorrect[$i] = $incorrect_selections{$foil};
1028: }
1029: for (my $i=0;$i<=$#correct;$i++) {
1030: $correct[$i] = sprintf('%2f',$correct[$i]/$total*100);
1031: }
1032: for (my $i=0;$i<=$#incorrect;$i++) {
1033: $incorrect[$i] = sprintf('%2f',$incorrect[$i]/$total*100);
1034: }
1035: #
1036: # Put a blank in the data sets between concepts, if there are concepts
1037: my @labels;
1038: if (defined($concepts) && scalar(@$concepts) > 1) {
1039: my @new_correct;
1040: my @new_incorrect;
1041: my $foil_count = 0;
1042: foreach my $concept (@$concepts) {
1043: foreach (@{$concept->{'foils'}}) {
1044: push(@new_correct, $correct[$foil_count]);
1045: push(@new_incorrect,$incorrect[$foil_count]);
1046: push(@labels,++$foil_count);
1047: }
1048: push(@new_correct,'');
1049: push(@new_incorrect,'');
1050: push(@labels,'');
1051: }
1052: @correct = @new_correct;
1053: @incorrect = @new_incorrect;
1054: } else {
1055: @labels = (1 .. scalar(@correct));
1056: }
1057: #
1058: my $xlabel = 'foil chosen';
1059: my $plot= &Apache::loncommon::DrawBarGraph($title,
1060: $xlabel,
1061: 'Percent Choosing',
1062: 100,
1063: ['#33ff00','#ff3300'],
1064: \@labels,
1065: \@correct,
1066: \@incorrect);
1067: return $plot;
1068: }
1069:
1070: sub RR_create_stacked_selection_plot {
1071: my ($foils,$foil_data,$title,$true_foils)=@_;
1072: #
1073: my @dataset; # array of array refs - multicolor rows $datasets[row]->[col]
1074: my @labels;
1075: my $count;
1076: my %column; # maps foil name to column in @datasets
1077: for (my $i=0;$i<scalar(@$foils);$i++) {
1078: my $foil = $foils->[$i];
1079: if (defined($true_foils) && scalar(keys(%$true_foils)) > 0 ) {
1080: next if (! $true_foils->{$foil} );
1081: push(@labels,$i+1);
1082: } else {
1083: next if (! exists($foil_data->{$foil}));
1084: push(@labels,$i+1);
1085: }
1086: next if (! exists($foil_data->{$foils->[$i]}));
1087: $column{$foil}= $count++;
1088: for (my $j=0;$j<scalar(@$foils);$j++) {
1089: my $value = 0;
1090: if ($i != $j ) {
1091: $value += $foil_data->{$foil}->{$foils->[$j]};
1092: }
1093: $dataset[$j]->[$column{$foil}]=$value;
1094: }
1095: }
1096: #
1097: return '' if (! scalar(keys(%column)));
1098: #
1099: my $grand_total = 0;
1100: my %count_per_foil;
1101: while (my ($foil,$bar) = each (%column)) {
1102: my $bar_total = 0;
1103: for (my $j=0;$j<scalar(@dataset);$j++) {
1104: $bar_total += $dataset[$j]->[$bar];
1105: }
1106: next if ($bar_total == 0);
1107: for (my $j=0;$j<scalar(@dataset);$j++) {
1108: $dataset[$j]->[$bar] =
1109: sprintf('%2f',$dataset[$j]->[$bar]/$bar_total * 100);
1110: }
1111: $count_per_foil{$foil}=' ( '.$bar_total.' )';
1112: $grand_total += $bar_total;
1113: }
1114: if ($grand_total == 0) {
1115: return ('',undef);
1116: }
1117: my @empty_row = ();
1118: foreach (@{$dataset[0]}) {
1119: push(@empty_row,0);
1120: }
1121: #
1122: my $graph = &Apache::loncommon::DrawBarGraph
1123: ($title,'Correct Foil','foils chosen Incorrectly',
1124: 100,$plotcolors,\@labels,\@empty_row,@dataset);
1125: return ($graph,\%count_per_foil);
1126: }
1127:
1128:
1129: #########################################################
1130: #########################################################
1131: ##
1132: ## Misc routines
1133: ##
1134: #########################################################
1135: #########################################################
1136:
1137: # if $correct is a hash ref, it is assumed to be indexed by student names.
1138: # the values are assumed to be hash refs with a key of 'answer'.
1139: sub classify_response_data {
1140: my ($full_row_data,$correct,$function) = @_;
1141: my %submission_data;
1142: my %students;
1143: my $max=0;
1144: foreach my $row (@$full_row_data) {
1145: my %subm = &hashify_attempt($row);
1146: if (ref($correct) eq 'HASH') {
1147: $subm{'correct'} = $correct->{$subm{'student'}};
1148: } else {
1149: $subm{'correct'} = $correct;
1150: }
1151: $subm{'submission'} =~ s/=\d+\s*$//;
1152: if (&$function(\%subm)) {
1153: $students{$subm{'student'}}++;
1154: $submission_data{'_count'}++;
1155: if (&submission_is_correct($subm{'award'})) {
1156: $submission_data{'_correct'}++;
1157: }
1158:
1159: if($max<++$submission_data{$subm{'correct'}}->{$subm{'submission'}}) {
1160: $max=$submission_data{$subm{'correct'}}->{$subm{'submission'}};
1161: }
1162: }
1163: }
1164: $submission_data{'_max'} = $max;
1165: $submission_data{'_students'}=scalar(keys(%students));
1166: return \%submission_data;
1167: }
1168:
1169:
1170: #########################################################
1171: #########################################################
1172: ##
1173: ## Option Response Routines
1174: ##
1175: #########################################################
1176: #########################################################
1177: sub OptionResponseAnalysis {
1178: my ($r,$problem,$problem_data,$Students) = @_;
1179: my ($resource,$respid) = ($problem->{'resource'},
1180: $problem->{'respid'});
1181: # Note: part data is not needed.
1182: my $PerformanceData = &Apache::loncoursedata::get_response_data
1183: ([&Apache::lonstatistics::get_selected_sections()],
1184: $Apache::lonstatistics::enrollment_status,
1185: $resource->symb,$respid);
1186: if (! defined($PerformanceData) ||
1187: ref($PerformanceData) ne 'ARRAY' ) {
1188: $r->print('<h2>'.
1189: &mt('There is no student data for this problem.').
1190: '</h2>');
1191: } else {
1192: $r->rflush();
1193: if ($env{'form.AnalyzeOver'} eq 'tries') {
1194: my $analysis_html = &OR_tries_analysis($r,
1195: $PerformanceData,
1196: $problem_data);
1197: $r->print($analysis_html);
1198: $r->rflush();
1199: } elsif ($env{'form.AnalyzeOver'} eq 'time') {
1200: my $analysis_html = &OR_time_analysis($PerformanceData,
1201: $problem_data);
1202: $r->print($analysis_html);
1203: $r->rflush();
1204: } else {
1205: $r->print('<h2>'.
1206: &mt('The analysis you have selected is '.
1207: 'not supported at this time').
1208: '</h2>');
1209: }
1210: }
1211: }
1212:
1213: #########################################################
1214: #
1215: # Option Response: tries Analysis
1216: #
1217: #########################################################
1218: sub OR_tries_analysis {
1219: my ($r,$PerformanceData,$ORdata) = @_;
1220: my $mintries = 1;
1221: my $maxtries = $env{'form.NumPlots'};
1222: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
1223: if (! defined($Concepts)) {
1224: $Concepts = [];
1225: }
1226: my %response_data = &OR_analyze_by_tries($r,$PerformanceData,
1227: $mintries,$maxtries);
1228: my $analysis = '';
1229: #
1230: # Compute the data necessary to make the plots
1231: my @foil_plot;
1232: my @concept_data;
1233: for (my $j=0;$j<=scalar(@$Concepts);$j++) {
1234: my $concept = $Concepts->[$j];
1235: foreach my $foilid (@{$concept->{'foils'}}) {
1236: for (my $try=$mintries;$try<=$maxtries;$try++) {
1237: # concept analysis data
1238: $concept_data[$j]->[$try]->{'_correct'} +=
1239: $response_data{$foilid}->[$try]->{'_correct'};
1240: $concept_data[$j]->[$try]->{'_total'} +=
1241: $response_data{$foilid}->[$try]->{'_total'};
1242: #
1243: # foil analysis data
1244: if ($response_data{$foilid}->[$try]->{'_total'} == 0) {
1245: push(@{$foil_plot[$try]->{'_correct'}},0);
1246: } else {
1247: push(@{$foil_plot[$try]->{'_correct'}},
1248: 100*$response_data{$foilid}->[$try]->{'_correct'}/
1249: $response_data{$foilid}->[$try]->{'_total'});
1250: }
1251: foreach my $option (@{$ORdata->{'_Options'}}) {
1252: push(@{$foil_plot[$try]->{'_total'}},
1253: $response_data{$foilid}->[$try]->{'_total'});
1254: if ($response_data{$foilid}->[$try]->{'_total'} == 0) {
1255: push (@{$foil_plot[$try]->{$option}},0);
1256: } else {
1257: if ($response_data{$foilid}->[$try]->{'_total'} ==
1258: $response_data{$foilid}->[$try]->{'_correct'}) {
1259: push(@{$foil_plot[$try]->{$option}},0);
1260: } else {
1261: push (@{$foil_plot[$try]->{$option}},
1262: 100 *
1263: $response_data{$foilid}->[$try]->{$option} /
1264: ($response_data{$foilid}->[$try]->{'_total'}
1265: -
1266: $response_data{$foilid}->[$try]->{'_correct'}
1267: ));
1268: }
1269: }
1270: } # End of foreach my $option
1271: }
1272: } # End of foreach my $foilid
1273: } # End of concept loops
1274: #
1275: # Build a table for the plots
1276: my $analysis_html = "<br /><table>\n";
1277: my $optionkey = &build_option_index($ORdata);
1278: my $num_concepts = 1;
1279: if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); }
1280: #
1281: for (my $try=$mintries;$try<=$maxtries;$try++) {
1282: if (! defined($response_data{'_total'}->[$try]) ||
1283: $response_data{'_total'}->[$try] == 0) {
1284: if ($try > 1) {
1285: $analysis_html.= '<tr><td align="center" colspan="4"><b>'.
1286: &mt('None of the selected students attempted the problem more than [_1] times.',$try-1).
1287: '</b></td></tr>';
1288: } else {
1289: $analysis_html.= '<tr><td colspan="4" align="center"><b>'.
1290: &mt('None of the selected students have attempted the problem').'</b></td></tr>';
1291: }
1292: last;
1293: }
1294: my $concept_graph='';
1295: if ($num_concepts > 1) {
1296: #
1297: # Create concept plot
1298: my @concept_plot_data;
1299: for (my $j=0;$j<=$#concept_data;$j++) {
1300: my $total = $concept_data[$j]->[$try]->{'_total'};
1301: if ($total == 0) {
1302: $concept_plot_data[$j] = 0;
1303: } else {
1304: $concept_plot_data[$j] = 100 *
1305: sprintf('%0.3f',
1306: $concept_data[$j]->[$try]->{'_correct'} /
1307: $total);
1308: }
1309: }
1310: #
1311: $concept_graph = &Apache::loncommon::DrawBarGraph
1312: ('Correct Concepts','Concept Number','Percent Correct',
1313: 100,$plotcolors,undef,\@concept_plot_data,{xskip=>1});
1314: }
1315: #
1316: # Create Foil Plots
1317: my $data_count = $response_data{'_total'}->[$try];
1318: my $correct = $response_data{'_correct'}->[$try];
1319: $correct |= 0;
1320: my @Datasets;
1321: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
1322: next if (! exists($foil_plot[$try]->{$option}));
1323: push(@Datasets,$foil_plot[$try]->{$option});
1324: }
1325: #
1326: # Put a blank in the data set between concepts
1327: for (my $set =0;$set<=$#Datasets;$set++) {
1328: my @Data = @{$Datasets[$set]};
1329: my $idx = 0;
1330: foreach my $concept (@{$Concepts}) {
1331: foreach my $foilid (@{$concept->{'foils'}}) {
1332: $Datasets[$set]->[$idx++]=shift(@Data);
1333: }
1334: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
1335: $Datasets[$set]->[$idx++] = 0;
1336: }
1337: }
1338: }
1339: #
1340: # Set up the labels needed for the bar graph
1341: my @Labels;
1342: my $idx = 1;
1343: foreach my $concept (@{$Concepts}) {
1344: foreach my $foilid (@{$concept->{'foils'}}) {
1345: push(@Labels,$idx++);
1346: }
1347: push(@Labels,'');
1348: }
1349: #
1350: my $correct_graph = &Apache::loncommon::DrawBarGraph
1351: ('Correct Statements','Statement','% Answered Correct',
1352: 100,$plotcolors,\@Labels,$Datasets[0],{xskip=>1});
1353:
1354: #
1355: #
1356: next if (! defined($Datasets[0]));
1357: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
1358: $Datasets[0]->[$i]=0;
1359: }
1360: my $count = $response_data{'_total'}->[$try] -
1361: $response_data{'_correct'}->[$try];
1362: my $incorrect_graph = &Apache::loncommon::DrawBarGraph
1363: ('Incorrect Statements','Statement','% Chosen Incorrectly',
1364: 100,$plotcolors,\@Labels,@Datasets,{xskip=>1});
1365: $analysis_html.=
1366: '<tr><td colspan="4" align="center">'.
1367: '<font size="+1">'.
1368: &mt('Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect',
1369: $try,$data_count,$correct,$data_count-$correct).
1370: '</font>'.'</td></tr>'.$/.
1371: '<tr>'.
1372: '<td>'.$concept_graph.'</td>'.
1373: '<td>'.$correct_graph.'</td>'.
1374: '<td>'.$incorrect_graph.'</td>'.
1375: '<td>'.$optionkey.'<td>'.
1376: '</tr>'.$/;
1377: }
1378: $analysis_html .= "</table>\n";
1379: $table .= $analysis_html;
1380: return $table;
1381: }
1382:
1383: sub OR_analyze_by_tries {
1384: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1385: my %Trydata;
1386: $mintries = 1 if (! defined($mintries) || $mintries < 1);
1387: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1388: my @students;
1389: foreach my $row (@$PerformanceData) {
1390: next if (! defined($row));
1391: my $tries = &get_tries_from_row($row);
1392: my %Row = &Process_OR_Row($row);
1393: next if (! %Row);
1394: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1395: $students[$tries]->{$student_id}++;
1396: while (my ($foilid,$href) = each(%Row)) {
1397: if (! ref($href)) {
1398: $Trydata{$foilid}->[$tries] += $href;
1399: next;
1400: }
1401: while (my ($option,$value) = each(%$href)) {
1402: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1403: }
1404: }
1405: }
1406: for (my $try=$mintries;$try<=$maxtries;$try++) {
1407: $Trydata{'_studentcount'}->[$try] = scalar(keys(%{$students[$try]}));
1408: }
1409: return %Trydata;
1410: }
1411:
1412: #########################################################
1413: #
1414: # Option Response: Time Analysis
1415: #
1416: #########################################################
1417: sub OR_time_analysis {
1418: my ($performance_data,$ORdata) = @_;
1419: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
1420: my $foilkey = &build_option_index($ORdata);
1421: my $num_concepts = 1;
1422: if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); }
1423: #
1424: if ($num_concepts < 2) {
1425: $table = '<h3>'.
1426: &mt('Not enough data for concept analysis. '.
1427: 'Performing Foil Analysis').
1428: '</h3>'.$table;
1429: }
1430: #
1431: my $num_plots = $env{'form.NumPlots'};
1432: my $num_data = scalar(@$performance_data)-1;
1433: #
1434: my $current_index;
1435: $table .= "<table>\n";
1436: for (my $i=0;$i<$num_plots;$i++) {
1437: ##
1438: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
1439: ('startdate_'.$i);
1440: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
1441: ('enddate_'.$i);
1442: if (! defined($starttime) || ! defined($endtime)) {
1443: my $sec_in_day = 86400;
1444: my $last_sub_time = &get_time_from_row($performance_data->[-1]);
1445: my ($sday,$smon,$syear) =
1446: (localtime($last_sub_time - $sec_in_day*$i))[3..5];
1447: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
1448: $endtime = $starttime + $sec_in_day;
1449: if ($i == ($num_plots -1 )) {
1450: $starttime = &get_time_from_row($performance_data->[0]);
1451: }
1452: }
1453: $table .= '<tr><td colspan="4" align="center"><font size="+1">'.
1454: &mt('Data from [_1] to [_2]',
1455: &Apache::lonlocal::locallocaltime($starttime),
1456: &Apache::lonlocal::locallocaltime($endtime)).
1457: '</font></td></tr>'.$/;
1458: my $startdateform = &Apache::lonhtmlcommon::date_setter
1459: ('Statistics','startdate_'.$i,$starttime);
1460: my $enddateform = &Apache::lonhtmlcommon::date_setter
1461: ('Statistics','enddate_'.$i,$endtime);
1462: #
1463: my $begin_index;
1464: my $end_index;
1465: my $j;
1466: while (++$j < scalar(@$performance_data)) {
1467: last if (&get_time_from_row($performance_data->[$j])
1468: > $starttime);
1469: }
1470: $begin_index = $j;
1471: while ($j < scalar(@$performance_data)) {
1472: if (&get_time_from_row($performance_data->[$j]) > $endtime) {
1473: last;
1474: } else {
1475: $j++;
1476: }
1477: }
1478: $end_index = $j;
1479: ##
1480: my ($processed_time_data,$correct,$data_count,$student_count) =
1481: &OR_time_process_data($performance_data,$begin_index,$end_index);
1482: $correct |= 0;
1483: ##
1484: $table .= '<tr><td colspan="4" align="center"><font size="+1">'.
1485: &mt('[_1] submissions from [_2] students, [_3] correct, [_4] incorrect',
1486: $data_count,$student_count,$correct,$data_count-$correct).
1487: '</font></td></tr>'.$/;
1488: my $concept_correct_plot = '';
1489: if ($num_concepts > 1) {
1490: $concept_correct_plot =
1491: &OR_Concept_Time_Analysis($processed_time_data,
1492: $correct,$data_count,$student_count,
1493: $ORdata,$Concepts);
1494: }
1495: my ($foil_correct_plot,$foil_incorrect_plot) =
1496: &OR_Foil_Time_Analysis($processed_time_data,
1497: $correct,$data_count,$student_count,
1498: $ORdata,$Foils,$Concepts);
1499: $table .= '<tr>'.
1500: '<td>'.$concept_correct_plot.'</td>'.
1501: '<td>'.$foil_correct_plot.'</td>'.
1502: '<td>'.$foil_incorrect_plot.'</td>'.
1503: '<td align="left" valign="top">'.$foilkey.'</td></tr>'.$/;
1504: $table .= '<tr><td colspan="4" align="center">'.
1505: &mt('Start time: [_1]',$startdateform).'<br />'.
1506: &mt('End time: [_1]',$enddateform).'</td></tr>'.$/;
1507: $table.= '<tr><td colspan="4"> </td></tr>'.$/;
1508: }
1509: $table .= '</table>';
1510: #
1511: return $table;
1512: }
1513:
1514: sub OR_Foil_Time_Analysis {
1515: my ($processed_time_data,$correct,$data_count,$student_count,
1516: $ORdata,$Foils,$Concepts) = @_;
1517: if ($data_count <= 0) {
1518: return ('<h2>'.&mt('There is no data to plot').'</h2>','');
1519: }
1520: my $analysis_html;
1521: my @plotdata;
1522: my @labels;
1523: foreach my $concept (@{$Concepts}) {
1524: foreach my $foil (@{$concept->{'foils'}}) {
1525: push(@labels,scalar(@labels)+1);
1526: my $total = $processed_time_data->{$foil}->{'_total'};
1527: if ($total == 0) {
1528: push(@{$plotdata[0]},0);
1529: } else {
1530: push(@{$plotdata[0]},
1531: 100 * $processed_time_data->{$foil}->{'_correct'} / $total);
1532: }
1533: my $total_incorrect = $total - $processed_time_data->{$foil}->{'_correct'};
1534: for (my $i=0;$i<scalar(@{$ORdata->{'_Options'}});$i++) {
1535: my $option = $ORdata->{'_Options'}->[$i];
1536: if ($total_incorrect == 0) {
1537: push(@{$plotdata[$i+1]},0);
1538: } else {
1539: push(@{$plotdata[$i+1]},
1540: 100 * $processed_time_data->{$foil}->{$option} / $total_incorrect);
1541: }
1542: }
1543: }
1544: # Put in a blank one
1545: push(@labels,'');
1546: push(@{$plotdata[0]},0);
1547: for (my $i=0;$i<scalar(@{$ORdata->{'_Options'}});$i++) {
1548: push(@{$plotdata[$i+1]},0);
1549: }
1550: }
1551: #
1552: # Create the plot
1553: my $correct_plot = &Apache::loncommon::DrawBarGraph('Correct Statements',
1554: 'Statement Number',
1555: 'Percent Correct',
1556: 100,
1557: $plotcolors,
1558: undef,
1559: $plotdata[0],
1560: {xskip=>1});
1561: for (my $j=0; $j< scalar(@{$plotdata[0]});$j++) {
1562: $plotdata[0]->[$j]=0;
1563: }
1564: my $incorrect_plot =
1565: &Apache::loncommon::DrawBarGraph('Incorrect Statements',
1566: 'Statement Number',
1567: 'Incorrect Option Choice',
1568: 100,
1569: $plotcolors,
1570: undef,
1571: @plotdata,{xskip=>1});
1572: return ($correct_plot,$incorrect_plot);
1573: }
1574:
1575: sub OR_Concept_Time_Analysis {
1576: my ($processed_time_data,$correct,$data_count,$student_count,
1577: $ORdata,$Concepts) = @_;
1578: return '' if ($data_count == 0);
1579: #
1580: # Put the data in plottable form
1581: my @plotdata;
1582: foreach my $concept (@$Concepts) {
1583: my ($total,$correct);
1584: foreach my $foil (@{$concept->{'foils'}}) {
1585: $total += $processed_time_data->{$foil}->{'_total'};
1586: $correct += $processed_time_data->{$foil}->{'_correct'};
1587: }
1588: if ($total == 0) {
1589: push(@plotdata,0);
1590: } else {
1591: push(@plotdata,100 * $correct / $total);
1592: }
1593: }
1594: #
1595: # Create the plot
1596: return &Apache::loncommon::DrawBarGraph('Correct Concepts',
1597: 'Concept Number',
1598: 'Percent Correct',
1599: 100,
1600: $plotcolors,
1601: undef,
1602: \@plotdata,{xskip=>1});
1603: }
1604:
1605: sub OR_time_process_data {
1606: my ($performance_data,$begin_index,$end_index)=@_;
1607: my %processed_time_data;
1608: my %distinct_students;
1609: my ($correct,$data_count);
1610: if (($begin_index == $end_index) &&
1611: ($end_index != scalar(@$performance_data)-1)) {
1612: return undef;
1613: }
1614: # Be sure we include the last one if we are asked for it.
1615: # That we have to correct here (and not when $end_index is
1616: # given a value) should probably be considered a bug.
1617: if ($end_index == scalar(@$performance_data)-1) {
1618: $end_index++;
1619: }
1620: my $count;
1621: for (my $i=$begin_index;$i<$end_index;$i++) {
1622: my $attempt = $performance_data->[$i];
1623: $count++;
1624: next if (! defined($attempt));
1625: my %attempt = &Process_OR_Row($attempt);
1626: $data_count++;
1627: $correct += $attempt{'_correct'};
1628: $distinct_students{$attempt->[&Apache::loncoursedata::RD_student_id()]}++;
1629: while (my ($foilid,$href) = each(%attempt)) {
1630: if (! ref($href)) {
1631: $processed_time_data{$foilid} += $href;
1632: next;
1633: }
1634: while (my ($option,$value) = each(%$href)) {
1635: $processed_time_data{$foilid}->{$option}+=$value;
1636: }
1637: }
1638: }
1639: return (\%processed_time_data,$correct,$data_count,
1640: scalar(keys(%distinct_students)));
1641: }
1642:
1643: sub build_foil_index {
1644: my ($ORdata) = @_;
1645: return if (! exists($ORdata->{'_Foils'}));
1646: my %Foildata = %{$ORdata->{'_Foils'}};
1647: my @Foils = sort(keys(%Foildata));
1648: my %Concepts;
1649: foreach my $foilid (@Foils) {
1650: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1651: $foilid);
1652: }
1653: undef(@Foils);
1654: # Having gathered the concept information in a hash, we now translate it
1655: # into an array because we need to be consistent about order.
1656: # Also put the foils in order, too.
1657: my $sortfunction = sub {
1658: my %Numbers = (one => 1,
1659: two => 2,
1660: three => 3,
1661: four => 4,
1662: five => 5,
1663: six => 6,
1664: seven => 7,
1665: eight => 8,
1666: nine => 9,
1667: ten => 10,);
1668: my $a1 = lc($a);
1669: my $b1 = lc($b);
1670: if (exists($Numbers{$a1})) {
1671: $a1 = $Numbers{$a1};
1672: }
1673: if (exists($Numbers{$b1})) {
1674: $b1 = $Numbers{$b1};
1675: }
1676: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1677: return $a1 <=> $b1;
1678: } else {
1679: return $a1 cmp $b1;
1680: }
1681: };
1682: my @Concepts;
1683: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1684: if (! defined($Concepts{$concept})) {
1685: $Concepts{$concept}=[];
1686: # next;
1687: }
1688: push(@Concepts,{ name => $concept,
1689: foils => [@{$Concepts{$concept}}]});
1690: push(@Foils,(@{$Concepts{$concept}}));
1691: }
1692: #
1693: # Build up the table of row labels.
1694: my $table = '<table border="1" >'."\n";
1695: if (@Concepts > 1) {
1696: $table .= '<tr>'.
1697: '<th>'.&mt('Concept Number').'</th>'.
1698: '<th>'.&mt('Concept').'</th>'.
1699: '<th>'.&mt('Foil Number').'</th>'.
1700: '<th>'.&mt('Foil Name').'</th>'.
1701: '<th>'.&mt('Foil Text').'</th>'.
1702: '<th>'.&mt('Correct Value').'</th>'.
1703: "</tr>\n";
1704: } else {
1705: $table .= '<tr>'.
1706: '<th>'.&mt('Foil Number').'</th>'.
1707: '<th>'.&mt('Foil Name').'</th>'.
1708: '<th>'.&mt('Foil Text').'</th>'.
1709: '<th>'.&mt('Correct Value').'</th>'.
1710: "</tr>\n";
1711: }
1712: my $conceptindex = 1;
1713: my $foilindex = 1;
1714: foreach my $concept (@Concepts) {
1715: my @FoilsInConcept = @{$concept->{'foils'}};
1716: my $firstfoil = shift(@FoilsInConcept);
1717: if (@Concepts > 1) {
1718: $table .= '<tr>'.
1719: '<td>'.$conceptindex.'</td>'.
1720: '<td>'.&HTML::Entities::encode($concept->{'name'},'<>&"').'</td>'.
1721: '<td>'.$foilindex++.'</td>'.
1722: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1723: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1724: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1725: "</tr>\n";
1726: } else {
1727: $table .= '<tr>'.
1728: '<td>'.$foilindex++.'</td>'.
1729: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1730: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1731: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1732: "</tr>\n";
1733: }
1734: foreach my $foilid (@FoilsInConcept) {
1735: if (@Concepts > 1) {
1736: $table .= '<tr>'.
1737: '<td></td>'.
1738: '<td></td>'.
1739: '<td>'.$foilindex.'</td>'.
1740: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1741: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1742: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1743: "</tr>\n";
1744: } else {
1745: $table .= '<tr>'.
1746: '<td>'.$foilindex.'</td>'.
1747: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1748: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1749: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1750: "</tr>\n";
1751: }
1752: } continue {
1753: $foilindex++;
1754: }
1755: } continue {
1756: $conceptindex++;
1757: }
1758: $table .= "</table>\n";
1759: #
1760: # Build option index with color stuff
1761: return ($table,\@Foils,\@Concepts);
1762: }
1763:
1764: sub build_option_index {
1765: my ($ORdata)= @_;
1766: my $table = "<table>\n";
1767: my $optionindex = 0;
1768: my @Rows;
1769: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1770: my $color = $plotcolors->[$optionindex++];
1771: push (@Rows,
1772: '<tr>'.
1773: '<td bgcolor="'.$color.'">'.
1774: '<font color="'.$color.'">'.('*'x3).'</font>'.'</td>'.
1775: '<td>'.&HTML::Entities::encode($option,'<>&"').'</td>'.
1776: "</tr>\n");
1777: }
1778: shift(@Rows); # Throw away 'correct option chosen' color
1779: $table .= join('',reverse(@Rows));
1780: $table .= "</table>\n";
1781: }
1782:
1783: sub build_foil_key {
1784: my ($foils,$extra_data)= @_;
1785: if (! defined($extra_data)) { $extra_data = {}; }
1786: my $table = "<table>\n";
1787: my $foil_index = 0;
1788: my @rows;
1789: foreach my $foil (&mt('correct foil chosen'),@{$foils}) {
1790: my $color = $plotcolors->[$foil_index++];
1791: push (@rows,
1792: '<tr>'.
1793: '<td bgcolor="'.$color.'" class="key">'.
1794: '<font color="'.$color.'">'.('*'x4).'</font></td>'.
1795: '<td>'.&HTML::Entities::encode($foil,'<>&"').
1796: (' 'x2).$extra_data->{$foil}.'</td>'.
1797: "</tr>\n");
1798: }
1799: shift(@rows); # Throw away 'correct foil chosen' color
1800: $table .= join('',reverse(@rows));
1801: $table .= "</table>\n";
1802: }
1803:
1804: #########################################################
1805: #########################################################
1806: ##
1807: ## Generic Interface Routines
1808: ##
1809: #########################################################
1810: #########################################################
1811: sub CreateInterface {
1812: ##
1813: ## Environment variable initialization
1814: if (! exists($env{'form.AnalyzeOver'})) {
1815: $env{'form.AnalyzeOver'} = 'tries';
1816: }
1817: ##
1818: ## Build the menu
1819: my $Str = '';
1820: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1821: (undef,'Detailed Problem Analysis');
1822: $Str .= '<table cellspacing="5">'."\n";
1823: $Str .= '<tr>';
1824: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1825: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1826: $Str .= '<td align="center"> </td>';
1827: $Str .= '</tr>'."\n";
1828: ##
1829: ##
1830: $Str .= '<tr><td align="center">'."\n";
1831: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1832: $Str .= '</td>';
1833: #
1834: $Str .= '<td align="center">';
1835: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1836: $Str .= '</td>';
1837: #
1838: ##
1839: ##
1840: $Str .= '<td>';
1841: ##
1842: my $showprob_checkbox =
1843: '<input type="checkbox" name="show_prob" value="true" ';
1844: if ($env{'form.show_prob'} eq 'true') {
1845: $showprob_checkbox .= 'checked ';
1846: }
1847: $showprob_checkbox.= ' />';
1848: $Str.= '<nobr><label>'.
1849: &mt('Show problem [_1]',$showprob_checkbox).
1850: '</label></nobr><br />';
1851: ##
1852: my $analyze_selector = '<select name="AnalyzeOver" >';
1853: $analyze_selector .= '<option value="tries" ';
1854: if (! exists($env{'form.AnalyzeOver'}) ||
1855: $env{'form.AnalyzeOver'} eq 'tries'){
1856: # Default to tries
1857: $analyze_selector .= ' selected ';
1858: }
1859: $analyze_selector .= '>'.&mt('Tries').'</option>';
1860: $analyze_selector .= '<option value="time" ';
1861: $analyze_selector .= ' selected ' if ($env{'form.AnalyzeOver'} eq 'time');
1862: $analyze_selector .= '>'.&mt('Time').'</option>';
1863: $analyze_selector .= '</select>';
1864: $Str .= '<nobr><label>'.
1865: &mt('Analyze Over [_1] [_2]',
1866: $analyze_selector,
1867: &Apache::loncommon::help_open_topic('Analysis_Analyze_Over')).
1868: '</label></nobr><br />'.$/;
1869: ##
1870: my $numplots_selector = '<select name="NumPlots">';
1871: if (! exists($env{'form.NumPlots'})
1872: || $env{'form.NumPlots'} < 1
1873: || $env{'form.NumPlots'} > 20) {
1874: $env{'form.NumPlots'} = 5;
1875: }
1876: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1877: $numplots_selector .= '<option value="'.$i.'" ';
1878: if ($env{'form.NumPlots'} == $i) { $numplots_selector.=' selected '; }
1879: $numplots_selector .= '>'.$i.'</option>';
1880: }
1881: $numplots_selector .= '</select></nobr><br />';
1882: $Str .= '<nobr><label>'.&mt('Number of Plots [_1]',$numplots_selector).
1883: '</label></nobr>';
1884: ##
1885: $Str .= '<nobr><label>'.&mt('Status: [_1]',
1886: '<input type="text" '.
1887: 'name="stats_status" size="60" value="" />'
1888: ).
1889: '</label></nobr>';
1890: $Str .= '</td>';
1891: ##
1892: ##
1893: $Str .= '</tr>'."\n";
1894: $Str .= '</table>'."\n";
1895: return $Str;
1896: }
1897:
1898: #########################################################
1899: #########################################################
1900: ##
1901: ## Misc Option Response functions
1902: ##
1903: #########################################################
1904: #########################################################
1905: sub get_time_from_row {
1906: my ($row) = @_;
1907: if (ref($row)) {
1908: return $row->[&Apache::loncoursedata::RD_timestamp()];
1909: }
1910: return undef;
1911: }
1912:
1913: sub get_tries_from_row {
1914: my ($row) = @_;
1915: if (ref($row)) {
1916: return $row->[&Apache::loncoursedata::RD_tries()];
1917: }
1918: return undef;
1919: }
1920:
1921: sub hashify_attempt {
1922: my ($row) = @_;
1923: my %attempt;
1924: $attempt{'student'} = $row->[&Apache::loncoursedata::RD_sname()];
1925: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1926: $attempt{'submission'} = &Apache::lonnet::unescape($row->[&Apache::loncoursedata::RD_submission()]);
1927: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1928: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1929: return %attempt;
1930: }
1931:
1932: sub Process_OR_Row {
1933: my ($row) = @_;
1934: my %RowData;
1935: # my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1936: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1937: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1938: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1939: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1940: # my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1941: return undef if ($award eq 'MISSING_ANSWER');
1942: if (&submission_is_correct($award)) {
1943: $RowData{'_correct'} = 1;
1944: }
1945: $RowData{'_total'} = 1;
1946: my @Foilgrades = split('&',$grading);
1947: my @Foilsubs = split('&',$submission);
1948: for (my $j=0;$j<=$#Foilgrades;$j++) {
1949: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1950: $foilid = &Apache::lonnet::unescape($foilid);
1951: my (undef,$submission) = split('=',$Foilsubs[$j]);
1952: if ($correct) {
1953: $RowData{$foilid}->{'_correct'}++;
1954: } else {
1955: $submission = &Apache::lonnet::unescape($submission);
1956: $RowData{$foilid}->{$submission}++;
1957: }
1958: $RowData{$foilid}->{'_total'}++;
1959: }
1960: return %RowData;
1961: }
1962:
1963: sub submission_is_correct {
1964: my ($award) = @_;
1965: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1966: return 1;
1967: } else {
1968: return 0;
1969: }
1970: }
1971:
1972: 1;
1973:
1974: __END__
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