1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.97 2004/10/29 15:27:39 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 Spreadsheet::WriteExcel();
41:
42: my $plotcolors = ['#33ff00',
43: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
44: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
45: ];
46:
47: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
48: text => 'Previous Problem' },
49: { name => 'ProblemAnalysis',
50: text => 'Analyze Problem Again' },
51: { name => 'NextProblemAnalysis',
52: text => 'Next Problem' },
53: { name => 'break'},
54: { name => 'SelectAnother',
55: text => 'Choose a different Problem' },
56: { name => 'ExcelOutput',
57: text => 'Produce Excel Output' });
58:
59: sub BuildProblemAnalysisPage {
60: my ($r,$c)=@_;
61: #
62: my %Saveable_Parameters = ('Status' => 'scalar',
63: 'Section' => 'array',
64: 'NumPlots' => 'scalar',
65: 'AnalyzeOver' => 'scalar',
66: );
67: &Apache::loncommon::store_course_settings('problem_analysis',
68: \%Saveable_Parameters);
69: &Apache::loncommon::restore_course_settings('problem_analysis',
70: \%Saveable_Parameters);
71: #
72: &Apache::lonstatistics::PrepareClasslist();
73: #
74: $r->print(&CreateInterface());
75: #
76: my @Students = @Apache::lonstatistics::Students;
77: #
78: if (@Students < 1 && exists($ENV{'form.firstrun'})) {
79: $r->print('<h2>There are no students in the sections selected</h2>');
80: }
81: #
82: my @CacheButtonHTML =
83: &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
84: $r->rflush();
85: #
86: # Support for numerical and radio response isn't complete enough to
87: # include in 1.2 release.
88: # my $problem_types = '(option|radiobutton|numerical)';
89: my $problem_types = '.';#(option)';
90: if (exists($ENV{'form.problemchoice'}) &&
91: ! exists($ENV{'form.SelectAnother'})) {
92: foreach my $button (@SubmitButtons) {
93: if ($button->{'name'} eq 'break') {
94: $r->print("<br />\n");
95: } else {
96: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
97: 'value="'.&mt($button->{'text'}).'" />');
98: $r->print(' 'x5);
99: }
100: }
101: foreach my $html (@CacheButtonHTML) {
102: $r->print($html.(' 'x5));
103: }
104: #
105: $r->print('<hr />');
106: $r->rflush();
107: #
108: # Determine which problem we are to analyze
109: my $current_problem = &Apache::lonstathelpers::get_target_from_id
110: ($ENV{'form.problemchoice'});
111: #
112: my ($prev,$curr,$next) =
113: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
114: $problem_types,
115: 'response',
116: );
117: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
118: $current_problem = $prev;
119: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
120: $current_problem = $next;
121: } else {
122: $current_problem = $curr;
123: }
124: #
125: # Store the current problem choice and send it out in the form
126: $ENV{'form.problemchoice'} =
127: &Apache::lonstathelpers::make_target_id($current_problem);
128: $r->print('<input type="hidden" name="problemchoice" value="'.
129: $ENV{'form.problemchoice'}.'" />');
130: #
131: if (! defined($current_problem->{'resource'})) {
132: $r->print('resource is undefined');
133: } else {
134: my $resource = $current_problem->{'resource'};
135: $r->print('<h1>'.$resource->{'title'}.'</h1>');
136: $r->print('<h3>'.$resource->{'src'}.'</h3>');
137: if ($ENV{'form.show_prob'} eq 'true') {
138: $r->print(&Apache::lonstathelpers::render_resource($resource));
139: }
140: $r->rflush();
141: my %Data = &Apache::lonstathelpers::get_problem_data
142: ($resource->{'src'});
143: my $problem_data = $Data{$current_problem->{'part'}.
144: '.'.
145: $current_problem->{'respid'}};
146: if ($current_problem->{'resptype'} eq 'option') {
147: &OptionResponseAnalysis($r,$current_problem,
148: $problem_data,
149: \@Students);
150: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
151: &radio_response_analysis($r,$current_problem,
152: $problem_data,
153: \@Students);
154: } elsif ($current_problem->{'resptype'} eq 'numerical') {
155: ##
156: ## analyze all responses of a problem at once
157: my $res = $current_problem->{'resource'};
158: foreach my $partid (@{$res->{'parts'}}) {
159: $current_problem->{'part'} = $partid;
160: foreach my $respid (@{$res->{'partdata'}->{$partid}->{'ResponseIds'}}) {
161: $current_problem->{'respid'}=$respid;
162: &NumericalResponseAnalysis($r,$current_problem,
163: $problem_data,\@Students);
164: }
165: }
166: } else {
167: $r->print('<h2>This analysis is not supported</h2>');
168: }
169: }
170: $r->print('<hr />');
171: } else {
172: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
173: &mt('Analyze Problem').'" />');
174: $r->print(' 'x5);
175: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
176: $r->print(&Apache::lonstathelpers::ProblemSelector
177: ($problem_types));
178: }
179: }
180:
181:
182: #########################################################
183: #########################################################
184: ##
185: ## Numerical Response Routines
186: ##
187: #########################################################
188: #########################################################
189: sub NumericalResponseAnalysis {
190: my ($r,$problem,$problem_data,$Students) = @_;
191: my $c = $r->connection();
192: my ($resource,$partid,$respid) = ($problem->{'resource'},
193: $problem->{'part'},
194: $problem->{'respid'});
195: #
196: if (scalar(@{$resource->{'parts'}})>1) {
197: if (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) {
198: $r->print('<h3>'.
199: &mt('Part [_1], response [_2].',$partid,$respid).
200: '</h3>');
201: } else {
202: $r->print('<h3>'.
203: &mt('Part [_1]',$partid,$respid).
204: '</h3>');
205: }
206: } elsif (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) {
207: $r->print('<h3>'.&mt('Response [_1]',$respid).'</h3>');
208: }
209: #
210: my $analysis_html;
211: my $PerformanceData = &Apache::loncoursedata::get_response_data
212: (\@Apache::lonstatistics::SelectedSections,
213: $Apache::lonstatistics::enrollment_status,
214: $resource->{'symb'},$respid);
215: if (! defined($PerformanceData) ||
216: ref($PerformanceData) ne 'ARRAY' ) {
217: $analysis_html = '<h2>'.
218: &mt('There is no submission data for this resource').
219: '</h2>';
220: $r->print($analysis_html);
221: return;
222: }
223: #
224: # This next call causes all the waiting around that people complain about
225: &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students,
226: 'Statistics',
227: 'stats_status');
228: return if ($c->aborted());
229: #
230: # Collate the data
231: my %Data;
232: foreach my $student (@$Students) {
233: my $answer = $student->{'answer'};
234: $Data{$answer}++;
235: }
236: my @Labels = sort {$a <=> $b } keys(%Data);
237: my @PlotData = @Data{@Labels};
238: #
239: my $width = 500;
240: my $height = 100;
241: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
242: \@Labels,\@PlotData);
243: $r->print($plot);
244: return;
245: }
246:
247: sub one_dimensional_plot {
248: my ($r,$width,$height,$N,$Labels,$Data)=@_;
249: #
250: # Compute data -> image scaling factors
251: my $min = $Labels->[0];
252: my $max = $Labels->[-1];
253: if ($max == $min) {
254: $max =$min+1;
255: }
256: my $h_scale = ($width-10)/($max-$min);
257: #
258: my $max_y = 0;
259: foreach (@$Data) {
260: $max_y = $_ if ($max_y < $_);
261: }
262: my $ticscale = 5;
263: if ($max_y * $ticscale > $height/2) {
264: $ticscale = int($height/2/$max_y);
265: $ticscale = 1 if ($ticscale < 1);
266: }
267: #
268: # Create the plot
269: my $plot =
270: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
271: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
272: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
273: my $top = $height/2-$Data->[$idx]*$ticscale;
274: my $bottom = $height/2+$Data->[$idx]*$ticscale;
275: $plot .=
276: &line($xloc,$top,$xloc,$bottom,'888888',1);
277: }
278: #
279: # Put the scale on last to ensure it is on top of the data.
280: if ($min < 0 && $max > 0) {
281: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
282: my $r = 4;
283: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
284: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
285: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
286: } else {
287: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
288: }
289: $plot .= '</drawimage>';
290: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
291:
292: my $title = 'Distribution of correct answers';
293: my $result = '<table>'.
294: '<tr><td colspan="3" align="center">'.
295: '<font size="+2">'.$title.' (N='.$N.')'.
296: '</font>'.
297: '</td></tr>'.
298: '<tr>'.
299: '<td valign="center">'.$min.'</td>'.
300: '<td>'.$plotresult.'</td>'.
301: '<td valign="center">'.$max.'</td>'.
302: '</tr>'.
303: '<tr><td colspan="3" align="center">'.
304: 'Maximum Number of Coinciding Values: '.$max_y.
305: '</td></tr>'.
306: '</table>';
307: return $result;
308: }
309:
310: ##
311: ## Helper subroutines for <drawimage>.
312: ## These should probably go somewhere more suitable soon.
313: sub line {
314: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
315: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
316: }
317:
318: sub text {
319: my ($x,$y,$color,$text,$font,$direction) = @_;
320: if (! defined($font) || $font !~ /^(tiny|small|medium|large|giant)$/) {
321: $font = 'medium';
322: }
323: if (! defined($direction) || $direction ne 'vertical') {
324: $direction = '';
325: }
326: return qq{<text x="$x" y="$y" color="$color" font="$font" direction="$direction" >$text</text>};
327: }
328:
329: sub rectangle {
330: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
331: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
332: }
333:
334: sub arc {
335: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
336: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
337: }
338:
339: sub circle {
340: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
341: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
342: }
343:
344: sub build_student_data_worksheet {
345: my ($workbook,$format) = @_;
346: my $rows_output = 3;
347: my $cols_output = 0;
348: my $worksheet = $workbook->addworksheet('Student Data');
349: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
350: my @Headers = ('full name','username','domain','section',
351: "student\nnumber",'identifier');
352: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
353: my @Students = @Apache::lonstatistics::Students;
354: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
355: my %ids;
356: foreach my $row (@$studentrows) {
357: my ($mysqlid,$student) = @$row;
358: $ids{$student}=$mysqlid;
359: }
360: foreach my $student (@Students) {
361: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
362: $worksheet->write_row($rows_output++,0,
363: [$student->{'fullname'},
364: $student->{'username'},$student->{'domain'},
365: $student->{'section'},$student->{'id'},
366: $ids{$name_domain}]);
367: }
368: return $worksheet;
369: }
370:
371: #########################################################
372: #########################################################
373: ##
374: ## Radio Response Routines
375: ##
376: #########################################################
377: #########################################################
378: sub radio_response_analysis {
379: my ($r,$problem,$problem_analysis,$students) = @_;
380: #
381: if ($ENV{'form.AnalyzeOver'} !~ /^(tries|time)$/) {
382: $r->print('Bad request');
383: }
384: #
385: my ($resource,$partid,$respid) = ($problem->{'resource'},
386: $problem->{'part'},
387: $problem->{'respid'});
388: #
389: my $analysis_html;
390: my $foildata = $problem_analysis->{'_Foils'};
391: my ($table,$foils,$concepts) = &build_foil_index($problem_analysis);
392: #
393: my $num_true = 0;
394: foreach my $foil (@$foils) {
395: if ($foildata->{$foil}->{'value'} eq 'true') {
396: $num_true++;
397: }
398: }
399: #
400: $analysis_html .= $table;
401: # Gather student data
402: my $response_data = &Apache::loncoursedata::get_response_data
403: (\@Apache::lonstatistics::SelectedSections,
404: $Apache::lonstatistics::enrollment_status,
405: $resource->{'symb'},$respid);
406: my $correct; # either a hash reference or a scalar
407: if ($problem_analysis->{'answercomputed'} || scalar(@$concepts) > 1) {
408: # This takes a while for large classes...
409: &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$students,
410: 'Statistics',
411: 'stats_status');
412: foreach my $student (@$students) {
413: my ($idx,@remainder) = split('&',$student->{'answer'});
414: my ($answer) = ($remainder[$idx]=~/^(.*)=([^=]*)$/);
415: $correct->{$student->{'username'}.':'.$student->{'domain'}}=
416: &Apache::lonnet::unescape($answer);
417: }
418: } else {
419: foreach my $foil (keys(%$foildata)) {
420: if ($foildata->{$foil}->{'value'} eq 'true') {
421: $correct = $foildata->{$foil}->{'name'};
422: }
423: }
424: }
425: #
426: if (! defined($response_data) || ref($response_data) ne 'ARRAY' ) {
427: $analysis_html = '<h2>'.
428: &mt('There is no submission data for this resource').
429: '</h2>';
430: $r->print($analysis_html);
431: return;
432: }
433: #
434: $analysis_html.='<table>';
435: for (my $plot_num = 1;$plot_num<=$ENV{'form.NumPlots'};$plot_num++) {
436: &Apache::lonnet::logthis('plot num = '.$plot_num);
437: # classify data ->correct foil -> selected foil
438: my ($restriction_function,
439: $correct_foil_title,$incorrect_foil_title,
440: $pre_graph_text,$post_graph_text,
441: $no_data_text,@extra_data);
442: if ($ENV{'form.AnalyzeOver'} eq 'tries') {
443: $restriction_function = sub {($_[0]->{'tries'} == $plot_num?1:0)};
444: $correct_foil_title = 'Attempt '.$plot_num;
445: $incorrect_foil_title = 'Attempt '.$plot_num;
446: $pre_graph_text =
447: 'Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect';
448: $post_graph_text = '';
449: $no_data_text = 'No data exists for attempt [_1]';
450: } elsif ($ENV{'form.AnalyzeOver'} eq 'time') {
451: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
452: ('startdate_'.$plot_num);
453: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
454: ('enddate_'.$plot_num);
455: ($starttime,$endtime) = &ensure_start_end_times
456: ($starttime,$endtime,
457: &get_time_from_row($response_data->[0]),
458: &get_time_from_row($response_data->[-1]),
459: $plot_num);
460: $pre_graph_text =
461: 'Data from [_5] to [_6], [_2] submissions, [_3] correct, [_4] incorrect';
462: $extra_data[0] = &Apache::lonlocal::locallocaltime($starttime);
463: $extra_data[1] = &Apache::lonlocal::locallocaltime($endtime);
464: #
465: $post_graph_text =
466: &mt('Start time: [_1]',
467: &Apache::lonhtmlcommon::date_setter
468: ('Statistics','startdate_'.$plot_num,$starttime)).
469: '<br />'.
470: &mt('End time: [_1]',
471: &Apache::lonhtmlcommon::date_setter
472: ('Statistics','enddate_'.$plot_num,$endtime));
473: $restriction_function =
474: sub {
475: my $t = $_[0]->{'timestamp'};
476: if ($t >= $starttime && $t < $endtime) {
477: return 1;
478: } else {
479: return 0;
480: }
481: };
482: $no_data_text = 'No data for [_5] to [_6]';
483: }
484: my $foil_choice_data =
485: &RR_classify_response_data($response_data,$correct,
486: $restriction_function);
487: # &Apache::lonstathelpers::log_hash_ref($foil_choice_data);
488: my $answers;
489: if (ref($correct)) {
490: my %tmp;
491: foreach my $foil (values(%$correct)) {
492: $tmp{$foil}++;
493: }
494: $answers = [keys(%tmp)];
495: } else {
496: $answers = [$correct];
497: }
498: # Concept Plot
499: my $concept_plot = '';
500: if (scalar(@$concepts) > 1) {
501: $concept_plot = &RR_concept_plot($concepts,$foil_choice_data,
502: 'Correct Concepts');
503: }
504: # % Choosing plot
505: my $choice_plot = &RR_create_percent_selected_plot
506: ($concepts,$foils,$foil_choice_data,$correct_foil_title);
507: # for each correct foil, how did they mark it? (stacked bar graph)
508: my ($stacked_plot,$count_by_foil);
509: if ($problem_analysis->{'answercomputed'} || $num_true > 1) {
510: ($stacked_plot,$count_by_foil) =
511: &RR_create_stacked_selection_plot($foils,$foil_choice_data,
512: $incorrect_foil_title);
513: }
514: #
515: if ($concept_plot ne '' ||
516: $choice_plot ne '' ||
517: $stacked_plot ne '') {
518: my $correct = $foil_choice_data->{'_correct'};
519: if (! defined($correct) || $correct eq '') {
520: $correct = 0;
521: }
522: my $incorrect =
523: $analysis_html.= '<tr><td colspan="4" align="center">'.
524: '<font size="+1">'.
525: &mt($pre_graph_text,
526: $plot_num,$foil_choice_data->{'_count'},
527: $correct,
528: $foil_choice_data->{'_count'}-$correct,
529: @extra_data).
530: '</td></tr>'.$/;
531: $analysis_html.=
532: '<tr>'.
533: '<td>'.$concept_plot.'</td>'.
534: '<td>'.$choice_plot.'</td>';
535: if ($stacked_plot ne '') {
536: $analysis_html .=
537: '<td>'.$stacked_plot.'</td>'.
538: '<td>'.&build_foil_key($foils,$count_by_foil).'</td>';
539: } else {
540: $analysis_html .= ('<td></td>'x2);
541: }
542: $analysis_html.='</tr>'.$/;
543: if (defined($post_graph_text)) {
544: $analysis_html.= '<tr><td colspan="4" align="center">'.
545: $post_graph_text.'</td></tr>'.$/;
546: }
547: } elsif ($no_data_text ne '') {
548: $analysis_html.='<tr><td colspan="4" align="center">'.
549: &mt($no_data_text,
550: $plot_num,$foil_choice_data->{'_count'},
551: $correct,
552: $foil_choice_data->{'_count'}-$correct,
553: @extra_data);
554: if (defined($post_graph_text)) {
555: $analysis_html.='<br />'.$post_graph_text;
556: }
557: $analysis_html.='</td></tr>'.$/;
558: }
559: } # end of loop for plots
560: $analysis_html.='</table>';
561: $r->print($analysis_html);
562: }
563:
564: sub ensure_start_end_times {
565: my ($start,$end,$first,$last,$plot_num) = @_;
566: if (! defined($start) || ! defined($end)) {
567: my $sec_in_day = 86400;
568: my ($sday,$smon,$syear) =
569: (localtime($last - $sec_in_day*($plot_num-1)))[3..5];
570: $start = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
571: $end = $start + $sec_in_day;
572: if ($plot_num == $ENV{'form.NumPlots'}) {
573: $start = $first;
574: }
575: }
576: return ($start,$end);
577: }
578:
579: sub RR_concept_plot {
580: my ($concepts,$foil_data,$title) = @_;
581: #
582: my %correct_by_concept;
583: my %incorrect_by_concept;
584: my %true;
585: foreach my $concept (@$concepts) {
586: foreach my $foil (@{$concept->{'foils'}}) {
587: next if (! exists($foil_data->{$foil}));
588: foreach my $choice (keys(%{$foil_data->{$foil}})) {
589: if ($choice eq $foil) {
590: $correct_by_concept{$concept->{'name'}} +=
591: $foil_data->{$foil}->{$choice};
592: } else {
593: $incorrect_by_concept{$concept->{'name'}} +=
594: $foil_data->{$foil}->{$choice};
595:
596: }
597: }
598: }
599: }
600: #
601: # need arrays for incorrect and correct because we want to use different
602: # colors for them
603: my @correct;
604: #
605: my $total =0;
606: for (my $i=0;$i<scalar(@$concepts);$i++) {
607: my $concept = $concepts->[$i];
608: $correct[$i] = $correct_by_concept{$concept->{'name'}};
609: $total += $correct_by_concept{$concept->{'name'}}+
610: $incorrect_by_concept{$concept->{'name'}};
611: }
612: if ($total == 0) { return ''; };
613: for (my $i=0;$i<=$#correct;$i++) {
614: $correct[$i] = sprintf('%0f',$correct[$i]/$total*100);
615: }
616: my $xlabel = 'concept';
617: my $plot= &Apache::loncommon::DrawBarGraph($title,
618: $xlabel,
619: 'Percent Choosing',
620: 100,
621: ['#33ff00','#ff3300'],
622: undef,
623: \@correct);
624: return $plot;
625: }
626:
627: sub RR_create_percent_selected_plot {
628: my ($concepts,$foils,$foil_data,$title) = @_;
629: #
630: my %foil_selections;
631: my %true;
632: foreach my $foil (@$foils) {
633: # foil_data has format $foil_data->{true_foil}->{selected foil}
634: next if (! exists($foil_data->{$foil}));
635: $true{$foil}++;
636: while (my ($f,$count)= each(%{$foil_data->{$foil}})) {
637: $foil_selections{$f}+=$count;
638: }
639: }
640: #
641: # need arrays for incorrect and correct because we want to use different
642: # colors for them
643: my @correct;
644: my @incorrect;
645: #
646: my $total =0;
647: for (my $i=0;$i<scalar(@$foils);$i++) {
648: my $foil = $foils->[$i];
649: if ($true{$foil}) {
650: $correct[$i] = $foil_selections{$foil};
651: $incorrect[$i] = 0;
652: } else {
653: $correct[$i] = 0;
654: $incorrect[$i] = $foil_selections{$foil};
655: }
656: $total+=$foil_selections{$foil};
657: }
658: if ($total == 0) { return ''; };
659: for (my $i=0;$i<=$#correct;$i++) {
660: $correct[$i] = sprintf('%0f',$correct[$i]/$total*100);
661: }
662: for (my $i=0;$i<=$#incorrect;$i++) {
663: $incorrect[$i] = sprintf('%0f',$incorrect[$i]/$total*100);
664: }
665: #
666: # Put a blank in the data sets between concepts, if there are concepts
667: my @labels;
668: if (defined($concepts) && scalar(@$concepts) > 1) {
669: my @new_correct;
670: my @new_incorrect;
671: my $foil_count = 0;
672: foreach my $concept (@$concepts) {
673: foreach (@{$concept->{'foils'}}) {
674: push(@new_correct, $correct[$foil_count]);
675: push(@new_incorrect,$incorrect[$foil_count]);
676: push(@labels,++$foil_count);
677: }
678: push(@new_correct,'');
679: push(@new_incorrect,'');
680: push(@labels,'');
681: }
682: @correct = @new_correct;
683: @incorrect = @new_incorrect;
684: } else {
685: @labels = (1 .. scalar(@correct));
686: }
687: #
688: my $xlabel = 'foil chosen';
689: my $plot= &Apache::loncommon::DrawBarGraph($title,
690: $xlabel,
691: 'Percent Choosing',
692: 100,
693: ['#33ff00','#ff3300'],
694: \@labels,
695: \@correct,
696: \@incorrect);
697: return $plot;
698: }
699:
700: sub RR_create_stacked_selection_plot {
701: my ($foils,$foil_data,$title)=@_;
702: #
703: my @dataset; # array of array refs - multicolor rows $datasets[row]->[col]
704: my @labels;
705: my $count;
706: my %column; # maps foil name to column in @datasets
707: for (my $i=0;$i<scalar(@$foils);$i++) {
708: next if (! exists($foil_data->{$foils->[$i]}));
709: my $correct_foil = $foils->[$i];
710: push(@labels,$i+1);
711: $column{$correct_foil}= $count++;
712: for (my $j=0;$j<scalar(@$foils);$j++) {
713: my $value = 0;
714: if ($i != $j ) {
715: $value += $foil_data->{$correct_foil}->{$foils->[$j]};
716: }
717: $dataset[$j]->[$column{$correct_foil}]=$value;
718: }
719: }
720: #
721: return '' if (! scalar(keys(%column)));
722: #
723: my $grand_total = 0;
724: my %count_per_foil;
725: while (my ($foil,$bar) = each (%column)) {
726: my $bar_total = 0;
727: for (my $j=0;$j<scalar(@dataset);$j++) {
728: $bar_total += $dataset[$j]->[$bar];
729: }
730: next if ($bar_total == 0);
731: for (my $j=0;$j<scalar(@dataset);$j++) {
732: $dataset[$j]->[$bar] =
733: sprintf('%2f',$dataset[$j]->[$bar]/$bar_total * 100);
734: }
735: $count_per_foil{$foil}=' ( '.$bar_total.' )';
736: $grand_total += $bar_total;
737: }
738: if ($grand_total == 0) {
739: return ('',undef);
740: }
741: my @empty_row = ();
742: foreach (@{$dataset[0]}) {
743: push(@empty_row,0);
744: }
745: #
746: my $graph = &Apache::loncommon::DrawBarGraph
747: ($title,'Correct Foil','foils chosen Incorrectly',
748: 100,$plotcolors,\@labels,\@empty_row,@dataset);
749: return ($graph,\%count_per_foil);
750: }
751:
752: # if $correct is a hash ref, it is assumed to be indexed by student names.
753: # the values are assumed to be hash refs with a key of 'answer'.
754: sub RR_classify_response_data {
755: my ($full_row_data,$correct,$function) = @_;
756: my %submission_data;
757: foreach my $row (@$full_row_data) {
758: my %subm = &hashify_attempt($row);
759: if (ref($correct) eq 'HASH') {
760: $subm{'correct'} = $correct->{$subm{'student'}};
761: } else {
762: $subm{'correct'} = $correct;
763: }
764: $subm{'submission'} =~ s/=\d+\s*$//;
765: if (&$function(\%subm)) {
766: $submission_data{'_count'}++;
767: if (&submission_is_correct($subm{'award'})) {
768: $submission_data{'_correct'}++;
769: }
770: $submission_data{$subm{'correct'}}->{$subm{'submission'}}++;
771: }
772: }
773: return \%submission_data;
774: }
775:
776:
777: #########################################################
778: #########################################################
779: ##
780: ## Option Response Routines
781: ##
782: #########################################################
783: #########################################################
784: sub OptionResponseAnalysis {
785: my ($r,$problem,$problem_data,$Students) = @_;
786: my ($resource,$respid) = ($problem->{'resource'},
787: $problem->{'respid'});
788: # Note: part data is not needed.
789: my $PerformanceData = &Apache::loncoursedata::get_response_data
790: (\@Apache::lonstatistics::SelectedSections,
791: $Apache::lonstatistics::enrollment_status,
792: $resource->{'symb'},$respid);
793: if (! defined($PerformanceData) ||
794: ref($PerformanceData) ne 'ARRAY' ) {
795: $r->print('<h2>'.
796: &mt('There is no student data for this problem.').
797: '</h2>');
798: } else {
799: $r->rflush();
800: if (exists($ENV{'form.ExcelOutput'})) {
801: my $result = &OR_excel_sheet($r,$resource,
802: $PerformanceData,
803: $problem_data);
804: $r->print($result);
805: $r->rflush();
806: } else {
807: if ($ENV{'form.AnalyzeOver'} eq 'tries') {
808: my $analysis_html = &OR_tries_analysis($r,
809: $PerformanceData,
810: $problem_data);
811: $r->print($analysis_html);
812: $r->rflush();
813: } elsif ($ENV{'form.AnalyzeOver'} eq 'time') {
814: my $analysis_html = &OR_time_analysis($PerformanceData,
815: $problem_data);
816: $r->print($analysis_html);
817: $r->rflush();
818: } else {
819: $r->print('<h2>'.
820: &mt('The analysis you have selected is '.
821: 'not supported at this time').
822: '</h2>');
823: }
824: }
825: }
826: }
827:
828: #########################################################
829: #
830: # Option Response: tries Analysis
831: #
832: #########################################################
833: sub OR_tries_analysis {
834: my ($r,$PerformanceData,$ORdata) = @_;
835: my $mintries = 1;
836: my $maxtries = $ENV{'form.NumPlots'};
837: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
838: my %response_data = &OR_analyze_by_tries($r,$PerformanceData,
839: $mintries,$maxtries);
840: my $analysis = '';
841: #
842: # Compute the data necessary to make the plots
843: my @foil_plot;
844: my @concept_data;
845: for (my $j=0;$j<=scalar(@$Concepts);$j++) {
846: my $concept = $Concepts->[$j];
847: foreach my $foilid (@{$concept->{'foils'}}) {
848: for (my $try=$mintries;$try<=$maxtries;$try++) {
849: # concept analysis data
850: $concept_data[$j]->[$try]->{'_correct'} +=
851: $response_data{$foilid}->[$try]->{'_correct'};
852: $concept_data[$j]->[$try]->{'_total'} +=
853: $response_data{$foilid}->[$try]->{'_total'};
854: #
855: # foil analysis data
856: if ($response_data{$foilid}->[$try]->{'_total'} == 0) {
857: push(@{$foil_plot[$try]->{'_correct'}},0);
858: } else {
859: push(@{$foil_plot[$try]->{'_correct'}},
860: 100*$response_data{$foilid}->[$try]->{'_correct'}/
861: $response_data{$foilid}->[$try]->{'_total'});
862: }
863: foreach my $option (@{$ORdata->{'_Options'}}) {
864: push(@{$foil_plot[$try]->{'_total'}},
865: $response_data{$foilid}->[$try]->{'_total'});
866: if ($response_data{$foilid}->[$try]->{'_total'} == 0) {
867: push (@{$foil_plot[$try]->{$option}},0);
868: } else {
869: if ($response_data{$foilid}->[$try]->{'_total'} ==
870: $response_data{$foilid}->[$try]->{'_correct'}) {
871: push(@{$foil_plot[$try]->{$option}},0);
872: } else {
873: push (@{$foil_plot[$try]->{$option}},
874: 100 *
875: $response_data{$foilid}->[$try]->{$option} /
876: ($response_data{$foilid}->[$try]->{'_total'}
877: -
878: $response_data{$foilid}->[$try]->{'_correct'}
879: ));
880: }
881: }
882: } # End of foreach my $option
883: }
884: } # End of foreach my $foilid
885: } # End of concept loops
886: #
887: # Build a table for the plots
888: my $analysis_html = "<br /><table>\n";
889: my $optionkey = &build_option_index($ORdata);
890: my $num_concepts = 1;
891: if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); }
892: #
893: for (my $try=$mintries;$try<=$maxtries;$try++) {
894: if (! defined($response_data{'_total'}->[$try]) ||
895: $response_data{'_total'}->[$try] == 0) {
896: if ($try > 1) {
897: $analysis_html.= '<tr><td align="center" colspan="4"><b>'.
898: &mt('None of the selected students attempted the problem more than [_1] times.',$try-1).
899: '</b></td></tr>';
900: } else {
901: $analysis_html.= '<tr><td colspan="4" align="center"><b>'.
902: &mt('None of the selected students have attempted the problem').'</b></td></tr>';
903: }
904: last;
905: }
906: my $concept_graph='';
907: if ($num_concepts > 1) {
908: #
909: # Create concept plot
910: my @concept_plot_data;
911: for (my $j=0;$j<=$#concept_data;$j++) {
912: my $total = $concept_data[$j]->[$try]->{'_total'};
913: if ($total == 0) {
914: $concept_plot_data[$j] = 0;
915: } else {
916: $concept_plot_data[$j] = 100 *
917: sprintf('%0.3f',
918: $concept_data[$j]->[$try]->{'_correct'} /
919: $total);
920: }
921: }
922: #
923: $concept_graph = &Apache::loncommon::DrawBarGraph
924: ('Correct Concepts','Concept Number','Percent Correct',
925: 100,$plotcolors,undef,\@concept_plot_data);
926: }
927: #
928: # Create Foil Plots
929: my $data_count = $response_data{'_total'}->[$try];
930: my $correct = $response_data{'_correct'}->[$try];
931: my @Datasets;
932: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
933: next if (! exists($foil_plot[$try]->{$option}));
934: push(@Datasets,$foil_plot[$try]->{$option});
935: }
936: #
937: # Put a blank in the data set between concepts
938: for (my $set =0;$set<=$#Datasets;$set++) {
939: my @Data = @{$Datasets[$set]};
940: my $idx = 0;
941: foreach my $concept (@{$Concepts}) {
942: foreach my $foilid (@{$concept->{'foils'}}) {
943: $Datasets[$set]->[$idx++]=shift(@Data);
944: }
945: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
946: $Datasets[$set]->[$idx++] = 0;
947: }
948: }
949: }
950: #
951: # Set up the labels needed for the bar graph
952: my @Labels;
953: my $idx = 1;
954: foreach my $concept (@{$Concepts}) {
955: foreach my $foilid (@{$concept->{'foils'}}) {
956: push(@Labels,$idx++);
957: }
958: push(@Labels,'');
959: }
960: #
961: my $correct_graph = &Apache::loncommon::DrawBarGraph
962: ('Correct Statements','Statement','% Answered Correct',
963: 100,$plotcolors,\@Labels,$Datasets[0]);
964:
965: #
966: #
967: next if (! defined($Datasets[0]));
968: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
969: $Datasets[0]->[$i]=0;
970: }
971: my $count = $response_data{'_total'}->[$try] -
972: $response_data{'_correct'}->[$try];
973: my $incorrect_graph = &Apache::loncommon::DrawBarGraph
974: ('Incorrect Statements','Statement','% Chosen Incorrectly',
975: 100,$plotcolors,\@Labels,@Datasets);
976: $analysis_html.=
977: '<tr><td colspan="4" align="center">'.
978: '<font size="+1">'.
979: &mt('Attempt [_1], [_2] submissions, [_3] correct, [_4] incorrect',
980: $try,$data_count,$correct,$data_count-$correct).
981: '</font>'.'</td></tr>'.$/.
982: '<tr>'.
983: '<td>'.$concept_graph.'</td>'.
984: '<td>'.$correct_graph.'</td>'.
985: '<td>'.$incorrect_graph.'</td>'.
986: '<td>'.$optionkey.'<td>'.
987: '</tr>'.$/;
988: }
989: $analysis_html .= "</table>\n";
990: $table .= $analysis_html;
991: return $table;
992: }
993:
994: sub OR_analyze_by_tries {
995: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
996: my %Trydata;
997: $mintries = 1 if (! defined($mintries) || $mintries < 1);
998: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
999: my @students;
1000: foreach my $row (@$PerformanceData) {
1001: next if (! defined($row));
1002: my $tries = &get_tries_from_row($row);
1003: my %Row = &Process_OR_Row($row);
1004: next if (! %Row);
1005: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1006: $students[$tries]->{$student_id}++;
1007: while (my ($foilid,$href) = each(%Row)) {
1008: if (! ref($href)) {
1009: $Trydata{$foilid}->[$tries] += $href;
1010: next;
1011: }
1012: while (my ($option,$value) = each(%$href)) {
1013: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1014: }
1015: }
1016: }
1017: for (my $try=$mintries;$try<=$maxtries;$try++) {
1018: $Trydata{'_studentcount'}->[$try] = scalar(keys(%{$students[$try]}));
1019: }
1020: return %Trydata;
1021: }
1022:
1023: #########################################################
1024: #
1025: # Option Response: Time Analysis
1026: #
1027: #########################################################
1028: sub OR_time_analysis {
1029: my ($performance_data,$ORdata) = @_;
1030: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
1031: my $foilkey = &build_option_index($ORdata);
1032: my $num_concepts = 1;
1033: if (defined($Concepts)) { $num_concepts = scalar(@$Concepts); }
1034: #
1035: if ($num_concepts < 2) {
1036: $table = '<h3>'.
1037: &mt('Not enough data for concept analysis. '.
1038: 'Performing Foil Analysis').
1039: '</h3>'.$table;
1040: }
1041: #
1042: my $num_plots = $ENV{'form.NumPlots'};
1043: my $num_data = scalar(@$performance_data)-1;
1044: #
1045: my $current_index;
1046: $table .= "<table>\n";
1047: for (my $i=0;$i<$num_plots;$i++) {
1048: ##
1049: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
1050: ('startdate_'.$i);
1051: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
1052: ('enddate_'.$i);
1053: if (! defined($starttime) || ! defined($endtime)) {
1054: my $sec_in_day = 86400;
1055: my $last_sub_time = &get_time_from_row($performance_data->[-1]);
1056: my ($sday,$smon,$syear) =
1057: (localtime($last_sub_time - $sec_in_day*$i))[3..5];
1058: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
1059: $endtime = $starttime + $sec_in_day;
1060: if ($i == ($num_plots -1 )) {
1061: $starttime = &get_time_from_row($performance_data->[0]);
1062: }
1063: }
1064: $table .= '<tr><td colspan="4" align="center"><font size="+1">'.
1065: &mt('Data from [_1] to [_2]',
1066: &Apache::lonlocal::locallocaltime($starttime),
1067: &Apache::lonlocal::locallocaltime($endtime)).
1068: '</font></td></tr>'.$/;
1069: my $startdateform = &Apache::lonhtmlcommon::date_setter
1070: ('Statistics','startdate_'.$i,$starttime);
1071: my $enddateform = &Apache::lonhtmlcommon::date_setter
1072: ('Statistics','enddate_'.$i,$endtime);
1073: #
1074: my $begin_index;
1075: my $end_index;
1076: my $j;
1077: while (++$j < scalar(@$performance_data)) {
1078: last if (&get_time_from_row($performance_data->[$j])
1079: > $starttime);
1080: }
1081: $begin_index = $j;
1082: while ($j < scalar(@$performance_data)) {
1083: if (&get_time_from_row($performance_data->[$j]) > $endtime) {
1084: last;
1085: } else {
1086: $j++;
1087: }
1088: }
1089: $end_index = $j;
1090: ##
1091: my ($processed_time_data,$correct,$data_count,$student_count) =
1092: &OR_time_process_data($performance_data,$begin_index,$end_index);
1093: ##
1094: $table .= '<tr><td colspan="4" align="center"><font size="+1">'.
1095: &mt('[_1] submissions from [_2] students submitting, [_3] correct, [_4] incorrect',
1096: $data_count,$student_count,$correct,$data_count-$correct).
1097: '</font></td></tr>'.$/;
1098: my $concept_correct_plot = '';
1099: if ($num_concepts > 1) {
1100: $concept_correct_plot =
1101: &OR_Concept_Time_Analysis($processed_time_data,
1102: $correct,$data_count,$student_count,
1103: $ORdata,$Concepts);
1104: }
1105: my ($foil_correct_plot,$foil_incorrect_plot) =
1106: &OR_Foil_Time_Analysis($processed_time_data,
1107: $correct,$data_count,$student_count,
1108: $ORdata,$Foils,$Concepts);
1109: $table .= '<tr>'.
1110: '<td>'.$concept_correct_plot.'</td>'.
1111: '<td>'.$foil_correct_plot.'</td>'.
1112: '<td>'.$foil_incorrect_plot.'</td>'.
1113: '<td align="left" valign="top">'.$foilkey.'</td></tr>'.$/;
1114: $table .= '<tr><td colspan="4" align="center">'.
1115: &mt('Start time: [_1]',$startdateform).'<br />'.
1116: &mt('End time: [_1]',$enddateform).'</td></tr>'.$/;
1117: $table.= '<tr><td colspan="4"> </td></tr>'.$/;
1118: }
1119: $table .= '</table>';
1120: #
1121: return $table;
1122: }
1123:
1124: sub OR_Foil_Time_Analysis {
1125: my ($processed_time_data,$correct,$data_count,$student_count,
1126: $ORdata,$Foils,$Concepts) = @_;
1127: if ($data_count <= 0) {
1128: return ('<h2>'.&mt('There is no data to plot').'</h2>','');
1129: }
1130: my $analysis_html;
1131: my @plotdata;
1132: my @labels;
1133: foreach my $concept (@{$Concepts}) {
1134: foreach my $foil (@{$concept->{'foils'}}) {
1135: push(@labels,scalar(@labels)+1);
1136: my $total = $processed_time_data->{$foil}->{'_total'};
1137: if ($total == 0) {
1138: push(@{$plotdata[0]},0);
1139: } else {
1140: push(@{$plotdata[0]},
1141: 100 * $processed_time_data->{$foil}->{'_correct'} / $total);
1142: }
1143: my $total_incorrect = $total - $processed_time_data->{$foil}->{'_correct'};
1144: for (my $i=0;$i<scalar(@{$ORdata->{'_Options'}});$i++) {
1145: my $option = $ORdata->{'_Options'}->[$i];
1146: if ($total_incorrect == 0) {
1147: push(@{$plotdata[$i+1]},0);
1148: } else {
1149: push(@{$plotdata[$i+1]},
1150: 100 * $processed_time_data->{$foil}->{$option} / $total_incorrect);
1151: }
1152: }
1153: }
1154: # Put in a blank one
1155: push(@labels,'');
1156: push(@{$plotdata[0]},0);
1157: for (my $i=0;$i<scalar(@{$ORdata->{'_Options'}});$i++) {
1158: push(@{$plotdata[$i+1]},0);
1159: }
1160: }
1161: #
1162: # Create the plot
1163: my $correct_plot = &Apache::loncommon::DrawBarGraph('Correct Statements',
1164: 'Statement Number',
1165: 'Percent Correct',
1166: 100,
1167: $plotcolors,
1168: undef,
1169: $plotdata[0]);
1170: for (my $j=0; $j< scalar(@{$plotdata[0]});$j++) {
1171: $plotdata[0]->[$j]=0;
1172: }
1173: my $incorrect_plot =
1174: &Apache::loncommon::DrawBarGraph('Incorrect Statements',
1175: 'Statement Number',
1176: 'Incorrect Option Choice',
1177: 100,
1178: $plotcolors,
1179: undef,
1180: @plotdata);
1181: return ($correct_plot,$incorrect_plot);
1182: }
1183:
1184: sub OR_Concept_Time_Analysis {
1185: my ($processed_time_data,$correct,$data_count,$student_count,
1186: $ORdata,$Concepts) = @_;
1187: return '' if ($data_count == 0);
1188: #
1189: # Put the data in plottable form
1190: my @plotdata;
1191: foreach my $concept (@$Concepts) {
1192: my ($total,$correct);
1193: foreach my $foil (@{$concept->{'foils'}}) {
1194: $total += $processed_time_data->{$foil}->{'_total'};
1195: $correct += $processed_time_data->{$foil}->{'_correct'};
1196: }
1197: if ($total == 0) {
1198: push(@plotdata,0);
1199: } else {
1200: push(@plotdata,100 * $correct / $total);
1201: }
1202: }
1203: #
1204: # Create the plot
1205: return &Apache::loncommon::DrawBarGraph('Correct Concepts',
1206: 'Concept Number',
1207: 'Percent Correct',
1208: 100,
1209: $plotcolors,
1210: undef,
1211: \@plotdata);
1212: }
1213:
1214: sub OR_time_process_data {
1215: my ($performance_data,$begin_index,$end_index)=@_;
1216: my %processed_time_data;
1217: my %distinct_students;
1218: my ($correct,$data_count);
1219: if (($begin_index == $end_index) &&
1220: ($end_index != scalar(@$performance_data)-1)) {
1221: return undef;
1222: }
1223: # Be sure we include the last one if we are asked for it.
1224: # That we have to correct here (and not when $end_index is
1225: # given a value) should probably be considered a bug.
1226: if ($end_index == scalar(@$performance_data)-1) {
1227: $end_index++;
1228: }
1229: &Apache::lonnet::logthis(' '.$begin_index.':'.$end_index);
1230: my $count;
1231: for (my $i=$begin_index;$i<$end_index;$i++) {
1232: my $attempt = $performance_data->[$i];
1233: $count++;
1234: next if (! defined($attempt));
1235: my %attempt = &Process_OR_Row($attempt);
1236: $data_count++;
1237: $correct += $attempt{'_correct'};
1238: $distinct_students{$attempt->[&Apache::loncoursedata::RD_student_id()]}++;
1239: while (my ($foilid,$href) = each(%attempt)) {
1240: if (! ref($href)) {
1241: $processed_time_data{$foilid} += $href;
1242: next;
1243: }
1244: while (my ($option,$value) = each(%$href)) {
1245: $processed_time_data{$foilid}->{$option}+=$value;
1246: }
1247: }
1248: }
1249: &Apache::lonnet::logthis('count = '.$count);
1250: return (\%processed_time_data,$correct,$data_count,
1251: scalar(keys(%distinct_students)));
1252: }
1253:
1254: #########################################################
1255: #########################################################
1256: ##
1257: ## Excel output
1258: ##
1259: #########################################################
1260: #########################################################
1261: sub OR_excel_sheet {
1262: my ($r,$resource,$performance_data,$ORdata) = @_;
1263: my $response = '';
1264: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1265: #
1266: # Create excel worksheet
1267: my $filename = '/prtspool/'.
1268: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1269: time.'_'.rand(1000000000).'.xls';
1270: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1271: if (! defined($workbook)) {
1272: $r->log_error("Error creating excel spreadsheet $filename: $!");
1273: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1274: "This error has been logged. ".
1275: "Please alert your LON-CAPA administrator").
1276: '</p>');
1277: return undef;
1278: }
1279: #
1280: $workbook->set_tempdir('/home/httpd/perl/tmp');
1281: my $format = &Apache::loncommon::define_excel_formats($workbook);
1282: #
1283: # Create and populate main worksheets
1284: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1285: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1286: my $response_data_sheet = $workbook->addworksheet('Response Data');
1287: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1288: $response_data_sheet) {
1289: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1290: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1291: }
1292: #
1293: my $result;
1294: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1295: $Concepts,$ORdata);
1296: if ($result ne 'okay') {
1297: # Do something useful
1298: }
1299: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1300: $performance_data,$Foils,
1301: $ORdata);
1302: if ($result ne 'okay') {
1303: # Do something useful
1304: }
1305: $response_data_sheet->activate();
1306: #
1307: # Close the excel file
1308: $workbook->close();
1309: #
1310: # Write a link to allow them to download it
1311: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1312: '<p><a href="'.$filename.'">'.
1313: &mt('Your Excel spreadsheet.').
1314: '</a></p>'."\n";
1315: return $result;
1316: }
1317:
1318: sub OR_build_problem_data_worksheet {
1319: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1320: my $rows_output = 3;
1321: my $cols_output = 0;
1322: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1323: ##
1324: ##
1325: my @Headers;
1326: if (@$Concepts > 1) {
1327: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1328: 'Foil Name','Foil Text','Correct value');
1329: } else {
1330: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1331: }
1332: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1333: my %Foildata = %{$ORdata->{'_Foils'}};
1334: my $conceptindex = 1;
1335: my $foilindex = 1;
1336: foreach my $concept (@$Concepts) {
1337: my @FoilsInConcept = @{$concept->{'foils'}};
1338: my $firstfoil = shift(@FoilsInConcept);
1339: if (@$Concepts > 1) {
1340: $worksheet->write_row($rows_output++,0,
1341: [$conceptindex,
1342: $concept->{'name'},
1343: $foilindex++,
1344: $Foildata{$firstfoil}->{'name'},
1345: $Foildata{$firstfoil}->{'text'},
1346: $Foildata{$firstfoil}->{'value'},]);
1347: } else {
1348: $worksheet->write_row($rows_output++,0,
1349: [ $foilindex++,
1350: $Foildata{$firstfoil}->{'name'},
1351: $Foildata{$firstfoil}->{'text'},
1352: $Foildata{$firstfoil}->{'value'},]);
1353: }
1354: foreach my $foilid (@FoilsInConcept) {
1355: if (@$Concepts > 1) {
1356: $worksheet->write_row($rows_output++,0,
1357: ['',
1358: '',
1359: $foilindex,
1360: $Foildata{$foilid}->{'name'},
1361: $Foildata{$foilid}->{'text'},
1362: $Foildata{$foilid}->{'value'},]);
1363: } else {
1364: $worksheet->write_row($rows_output++,0,
1365: [$foilindex,
1366: $Foildata{$foilid}->{'name'},
1367: $Foildata{$foilid}->{'text'},
1368: $Foildata{$foilid}->{'value'},]);
1369: }
1370: } continue {
1371: $foilindex++;
1372: }
1373: } continue {
1374: $conceptindex++;
1375: }
1376: $rows_output++;
1377: $rows_output++;
1378: ##
1379: ## Option data output
1380: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1381: foreach my $string (@{$ORdata->{'_Options'}}) {
1382: $worksheet->write($rows_output++,0,$string);
1383: }
1384: return 'okay';
1385: }
1386:
1387: sub OR_build_response_data_worksheet {
1388: my ($worksheet,$format,$performance_data,$Foils,$ORdata)=@_;
1389: my $rows_output = 3;
1390: my $cols_output = 0;
1391: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1392: $worksheet->set_column(1,1,20);
1393: $worksheet->set_column(2,2,13);
1394: my @Headers = ('identifier','time','award detail','attempt');
1395: foreach my $foil (@$Foils) {
1396: push (@Headers,$foil.' submission');
1397: push (@Headers,$foil.' grading');
1398: }
1399: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1400: #
1401: foreach my $row (@$performance_data) {
1402: next if (! defined($row));
1403: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1404: my @Foilgrades = split('&',$grading);
1405: my @Foilsubs = split('&',$submission);
1406: my %response_data;
1407: for (my $j=0;$j<=$#Foilgrades;$j++) {
1408: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1409: my (undef,$submission) = split('=',$Foilsubs[$j]);
1410: $submission = &Apache::lonnet::unescape($submission);
1411: $response_data{$foilid.' submission'}=$submission;
1412: $response_data{$foilid.' award'}=$correct;
1413: }
1414: $worksheet->write($rows_output,$cols_output++,$student);
1415: $worksheet->write($rows_output,$cols_output++,
1416: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1417: $worksheet->write($rows_output,$cols_output++,$award);
1418: $worksheet->write($rows_output,$cols_output++,$tries);
1419: foreach my $foilid (@$Foils) {
1420: $worksheet->write($rows_output,$cols_output++,
1421: $response_data{$foilid.' submission'});
1422: $worksheet->write($rows_output,$cols_output++,
1423: $response_data{$foilid.' award'});
1424: }
1425: $rows_output++;
1426: $cols_output = 0;
1427: }
1428: return;
1429: }
1430:
1431: sub build_foil_index {
1432: my ($ORdata) = @_;
1433: return if (! exists($ORdata->{'_Foils'}));
1434: my %Foildata = %{$ORdata->{'_Foils'}};
1435: my @Foils = sort(keys(%Foildata));
1436: my %Concepts;
1437: foreach my $foilid (@Foils) {
1438: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1439: $foilid);
1440: }
1441: undef(@Foils);
1442: # Having gathered the concept information in a hash, we now translate it
1443: # into an array because we need to be consistent about order.
1444: # Also put the foils in order, too.
1445: my $sortfunction = sub {
1446: my %Numbers = (one => 1,
1447: two => 2,
1448: three => 3,
1449: four => 4,
1450: five => 5,
1451: six => 6,
1452: seven => 7,
1453: eight => 8,
1454: nine => 9,
1455: ten => 10,);
1456: my $a1 = lc($a);
1457: my $b1 = lc($b);
1458: if (exists($Numbers{$a1})) {
1459: $a1 = $Numbers{$a1};
1460: }
1461: if (exists($Numbers{$b1})) {
1462: $b1 = $Numbers{$b1};
1463: }
1464: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1465: return $a1 <=> $b1;
1466: } else {
1467: return $a1 cmp $b1;
1468: }
1469: };
1470: my @Concepts;
1471: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1472: if (! defined($Concepts{$concept})) {
1473: $Concepts{$concept}=[];
1474: # next;
1475: }
1476: push(@Concepts,{ name => $concept,
1477: foils => [@{$Concepts{$concept}}]});
1478: push(@Foils,(@{$Concepts{$concept}}));
1479: }
1480: #
1481: # Build up the table of row labels.
1482: my $table = '<table border="1" >'."\n";
1483: if (@Concepts > 1) {
1484: $table .= '<tr>'.
1485: '<th>'.&mt('Concept Number').'</th>'.
1486: '<th>'.&mt('Concept').'</th>'.
1487: '<th>'.&mt('Foil Number').'</th>'.
1488: '<th>'.&mt('Foil Name').'</th>'.
1489: '<th>'.&mt('Foil Text').'</th>'.
1490: '<th>'.&mt('Correct Value').'</th>'.
1491: "</tr>\n";
1492: } else {
1493: $table .= '<tr>'.
1494: '<th>'.&mt('Foil Number').'</th>'.
1495: '<th>'.&mt('Foil Name').'</th>'.
1496: '<th>'.&mt('Foil Text').'</th>'.
1497: '<th>'.&mt('Correct Value').'</th>'.
1498: "</tr>\n";
1499: }
1500: my $conceptindex = 1;
1501: my $foilindex = 1;
1502: foreach my $concept (@Concepts) {
1503: my @FoilsInConcept = @{$concept->{'foils'}};
1504: my $firstfoil = shift(@FoilsInConcept);
1505: if (@Concepts > 1) {
1506: $table .= '<tr>'.
1507: '<td>'.$conceptindex.'</td>'.
1508: '<td>'.&HTML::Entities::encode($concept->{'name'},'<>&"').'</td>'.
1509: '<td>'.$foilindex++.'</td>'.
1510: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1511: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1512: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1513: "</tr>\n";
1514: } else {
1515: $table .= '<tr>'.
1516: '<td>'.$foilindex++.'</td>'.
1517: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1518: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1519: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1520: "</tr>\n";
1521: }
1522: foreach my $foilid (@FoilsInConcept) {
1523: if (@Concepts > 1) {
1524: $table .= '<tr>'.
1525: '<td></td>'.
1526: '<td></td>'.
1527: '<td>'.$foilindex.'</td>'.
1528: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1529: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1530: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1531: "</tr>\n";
1532: } else {
1533: $table .= '<tr>'.
1534: '<td>'.$foilindex.'</td>'.
1535: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1536: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1537: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1538: "</tr>\n";
1539: }
1540: } continue {
1541: $foilindex++;
1542: }
1543: } continue {
1544: $conceptindex++;
1545: }
1546: $table .= "</table>\n";
1547: #
1548: # Build option index with color stuff
1549: return ($table,\@Foils,\@Concepts);
1550: }
1551:
1552: sub build_option_index {
1553: my ($ORdata)= @_;
1554: my $table = "<table>\n";
1555: my $optionindex = 0;
1556: my @Rows;
1557: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1558: my $color = $plotcolors->[$optionindex++];
1559: push (@Rows,
1560: '<tr>'.
1561: '<td bgcolor="'.$color.'">'.
1562: '<font color="'.$color.'">'.('*'x3).'</font>'.'</td>'.
1563: '<td>'.&HTML::Entities::encode($option,'<>&"').'</td>'.
1564: "</tr>\n");
1565: }
1566: shift(@Rows); # Throw away 'correct option chosen' color
1567: $table .= join('',reverse(@Rows));
1568: $table .= "</table>\n";
1569: }
1570:
1571: sub build_foil_key {
1572: my ($foils,$extra_data)= @_;
1573: if (! defined($extra_data)) { $extra_data = {}; }
1574: my $table = "<table>\n";
1575: my $foil_index = 0;
1576: my @rows;
1577: foreach my $foil (&mt('correct foil chosen'),@{$foils}) {
1578: my $color = $plotcolors->[$foil_index++];
1579: push (@rows,
1580: '<tr>'.
1581: '<td bgcolor="'.$color.'" class="key">'.
1582: '<font color="'.$color.'">'.('*'x4).'</font></td>'.
1583: '<td>'.&HTML::Entities::encode($foil,'<>&"').
1584: (' 'x2).$extra_data->{$foil}.'</td>'.
1585: "</tr>\n");
1586: }
1587: shift(@rows); # Throw away 'correct foil chosen' color
1588: $table .= join('',reverse(@rows));
1589: $table .= "</table>\n";
1590: }
1591:
1592: #########################################################
1593: #########################################################
1594: ##
1595: ## Generic Interface Routines
1596: ##
1597: #########################################################
1598: #########################################################
1599: sub CreateInterface {
1600: ##
1601: ## Environment variable initialization
1602: if (! exists$ENV{'form.AnalyzeOver'}) {
1603: $ENV{'form.AnalyzeOver'} = 'tries';
1604: }
1605: ##
1606: ## Build the menu
1607: my $Str = '';
1608: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1609: (undef,'Detailed Problem Analysis');
1610: $Str .= '<table cellspacing="5">'."\n";
1611: $Str .= '<tr>';
1612: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1613: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1614: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1615: $Str .= '<td align="center"> </td>';
1616: $Str .= '</tr>'."\n";
1617: ##
1618: ##
1619: $Str .= '<tr><td align="center">'."\n";
1620: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1621: $Str .= '</td>';
1622: #
1623: $Str .= '<td align="center">';
1624: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1625: $Str .= '</td>';
1626: #
1627: # $Str .= '<td align="center">';
1628: my $only_seq_with_assessments = sub {
1629: my $s=shift;
1630: if ($s->{'num_assess'} < 1) {
1631: return 0;
1632: } else {
1633: return 1;
1634: }
1635: };
1636: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1637: $only_seq_with_assessments);
1638: ##
1639: ##
1640: $Str .= '<td>';
1641: ##
1642: my $showprob_checkbox =
1643: '<input type="checkbox" name="show_prob" value="true" ';
1644: if ($ENV{'form.show_prob'} eq 'true') {
1645: $showprob_checkbox .= 'checked ';
1646: }
1647: $showprob_checkbox.= ' />';
1648: $Str.= '<nobr><label>'.
1649: &mt('Show problem [_1]',$showprob_checkbox).
1650: '</label></nobr><br />';
1651: ##
1652: my $analyze_selector = '<select name="AnalyzeOver" >';
1653: $analyze_selector .= '<option value="tries" ';
1654: if (! exists($ENV{'form.AnalyzeOver'}) ||
1655: $ENV{'form.AnalyzeOver'} eq 'tries'){
1656: # Default to tries
1657: $analyze_selector .= ' selected ';
1658: }
1659: $analyze_selector .= '>'.&mt('Tries').'</option>';
1660: $analyze_selector .= '<option value="time" ';
1661: $analyze_selector .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'time');
1662: $analyze_selector .= '>'.&mt('Time').'</option>';
1663: $analyze_selector .= '</select>';
1664: $Str .= '<nobr><label>'.
1665: &mt('Analyze Over [_1] [_2]',
1666: $analyze_selector,
1667: &Apache::loncommon::help_open_topic('Analysis_Analyze_Over')).
1668: '</label></nobr><br />'.$/;
1669: ##
1670: my $numplots_selector = '<select name="NumPlots">';
1671: if (! exists($ENV{'form.NumPlots'})
1672: || $ENV{'form.NumPlots'} < 1
1673: || $ENV{'form.NumPlots'} > 20) {
1674: $ENV{'form.NumPlots'} = 5;
1675: }
1676: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1677: $numplots_selector .= '<option value="'.$i.'" ';
1678: if ($ENV{'form.NumPlots'} == $i) { $numplots_selector.=' selected '; }
1679: $numplots_selector .= '>'.$i.'</option>';
1680: }
1681: $numplots_selector .= '</select></nobr><br />';
1682: $Str .= '<nobr><label>'.&mt('Number of Plots [_1]',$numplots_selector).
1683: '</label></nobr>';
1684: ##
1685: $Str .= '<nobr><label>'.&mt('Status: [_1]',
1686: '<input type="text" '.
1687: 'name="stats_status" size="60" value="" />'
1688: ).
1689: '</label></nobr>';
1690: $Str .= '</td>';
1691: ##
1692: ##
1693: $Str .= '</tr>'."\n";
1694: $Str .= '</table>'."\n";
1695: return $Str;
1696: }
1697:
1698: #########################################################
1699: #########################################################
1700: ##
1701: ## Misc Option Response functions
1702: ##
1703: #########################################################
1704: #########################################################
1705: sub get_time_from_row {
1706: my ($row) = @_;
1707: if (ref($row)) {
1708: return $row->[&Apache::loncoursedata::RD_timestamp()];
1709: }
1710: return undef;
1711: }
1712:
1713: sub get_tries_from_row {
1714: my ($row) = @_;
1715: if (ref($row)) {
1716: return $row->[&Apache::loncoursedata::RD_tries()];
1717: }
1718: return undef;
1719: }
1720:
1721: sub hashify_attempt {
1722: my ($row) = @_;
1723: my %attempt;
1724: $attempt{'student'} = $row->[&Apache::loncoursedata::RD_sname()];
1725: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1726: $attempt{'submission'} = &Apache::lonnet::unescape($row->[&Apache::loncoursedata::RD_submission()]);
1727: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1728: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1729: return %attempt;
1730: }
1731:
1732: sub Process_OR_Row {
1733: my ($row) = @_;
1734: my %RowData;
1735: # my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1736: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1737: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1738: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1739: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1740: # my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1741: return undef if ($award eq 'MISSING_ANSWER');
1742: if (&submission_is_correct($award)) {
1743: $RowData{'_correct'} = 1;
1744: }
1745: $RowData{'_total'} = 1;
1746: my @Foilgrades = split('&',$grading);
1747: my @Foilsubs = split('&',$submission);
1748: for (my $j=0;$j<=$#Foilgrades;$j++) {
1749: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1750: $foilid = &Apache::lonnet::unescape($foilid);
1751: my (undef,$submission) = split('=',$Foilsubs[$j]);
1752: if ($correct) {
1753: $RowData{$foilid}->{'_correct'}++;
1754: } else {
1755: $submission = &Apache::lonnet::unescape($submission);
1756: $RowData{$foilid}->{$submission}++;
1757: }
1758: $RowData{$foilid}->{'_total'}++;
1759: }
1760: return %RowData;
1761: }
1762:
1763: sub submission_is_correct {
1764: my ($award) = @_;
1765: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1766: return 1;
1767: } else {
1768: return 0;
1769: }
1770: }
1771:
1772: 1;
1773:
1774: __END__
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