1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.58 2004/01/19 18:55:10 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 HTML::Entities();
37: use Time::Local();
38: use Spreadsheet::WriteExcel();
39:
40: my $plotcolors = ['#33ff00',
41: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
42: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
43: ];
44:
45: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
46: text => 'Previous Problem' },
47: { name => 'ProblemAnalysis',
48: text => 'Analyze Problem Again' },
49: { name => 'NextProblemAnalysis',
50: text => 'Next Problem' },
51: { name => 'break'},
52: { name => 'ClearCache',
53: text => 'Clear Caches' },
54: { name => 'updatecaches',
55: text => 'Update Student Data' },
56: { name => 'SelectAnother',
57: text => 'Choose a different Problem' },
58: { name => 'ExcelOutput',
59: text => 'Produce Excel Output' });
60:
61: sub render_resource {
62: my ($resource) = @_;
63: ##
64: ## Render the problem
65: my $base;
66: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
67: $base = "http://".$ENV{'SERVER_NAME'}.$base;
68: my $rendered_problem =
69: &Apache::lonnet::ssi_body($resource->{'src'});
70: $rendered_problem =~ s/<\s*form\s*/<nop /g;
71: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
72: return '<table bgcolor="ffffff"><tr><td>'.
73: '<base href="'.$base.'" />'.
74: $rendered_problem.
75: '</td></tr></table>';
76: }
77:
78: sub BuildProblemAnalysisPage {
79: my ($r,$c)=@_;
80: #
81: my %Saveable_Parameters = ('Status' => 'scalar',
82: 'Section' => 'array',
83: 'NumPlots' => 'scalar',
84: 'AnalyzeAs' => 'scalar',
85: 'AnalyzeOver' => 'scalar',
86: );
87: &Apache::loncommon::store_course_settings('problem_analysis',
88: \%Saveable_Parameters);
89: &Apache::loncommon::restore_course_settings('problem_analysis',
90: \%Saveable_Parameters);
91: #
92: &Apache::lonstatistics::PrepareClasslist();
93: #
94: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
95: $r->print(&CreateInterface());
96: #
97: my @Students = @Apache::lonstatistics::Students;
98: #
99: if (@Students < 1) {
100: $r->print('<h2>There are no students in the sections selected</h2>');
101: }
102: #
103: &Apache::loncoursedata::clear_internal_caches();
104: if (exists($ENV{'form.ClearCache'}) ||
105: exists($ENV{'form.updatecaches'}) ||
106: (exists($ENV{'form.firstanalysis'}) &&
107: $ENV{'form.firstanalysis'} ne 'no')) {
108: &Apache::lonstatistics::Gather_Full_Student_Data($r);
109: }
110: if (! exists($ENV{'form.firstanalysis'})) {
111: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
112: } else {
113: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
114: }
115: $r->rflush();
116: #
117: if (exists($ENV{'form.problemchoice'}) &&
118: ! exists($ENV{'form.SelectAnother'})) {
119: foreach my $button (@SubmitButtons) {
120: if ($button->{'name'} eq 'break') {
121: $r->print("<br />\n");
122: } else {
123: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
124: 'value="'.&mt($button->{'text'}).'" />');
125: $r->print(' 'x5);
126: }
127: }
128: #
129: $r->print('<hr />');
130: $r->rflush();
131: #
132: # Determine which problem we are to analyze
133: my $current_problem = &get_target_from_id($ENV{'form.problemchoice'});
134: #
135: my ($prev,$curr,$next) = &get_prev_curr_next($current_problem);
136: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
137: $current_problem = $prev;
138: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
139: $current_problem = $next;
140: } else {
141: $current_problem = $curr;
142: }
143: #
144: # Store the current problem choice and send it out in the form
145: $ENV{'form.problemchoice'} = &make_target_id($current_problem);
146: $r->print('<input type="hidden" name="problemchoice" value="'.
147: $ENV{'form.problemchoice'}.'" />');
148: #
149: if (! defined($current_problem->{'resource'})) {
150: $r->print('resource is undefined');
151: } else {
152: my $resource = $current_problem->{'resource'};
153: $r->print('<h1>'.$resource->{'title'}.'</h1>');
154: $r->print('<h3>'.$resource->{'src'}.'</h3>');
155: $r->print(&render_resource($resource));
156: $r->rflush();
157: my %Data = &get_problem_data($resource->{'src'});
158: my $ProblemData = $Data{$current_problem->{'part'}.
159: '.'.
160: $current_problem->{'respid'}};
161: if ($current_problem->{'resptype'} eq 'option') {
162: &OptionResponseAnalysis($r,$current_problem,
163: $ProblemData,
164: \@Students);
165: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
166: &RadioResponseAnalysis($r,$current_problem,
167: $ProblemData,
168: \@Students);
169: } else {
170: $r->print('<h2>This analysis is not supported</h2>');
171: }
172: }
173: $r->print('<hr />');
174: } else {
175: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
176: &mt('Analyze Problem').'" />');
177: $r->print(' 'x5);
178: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
179: $r->print(&ProblemSelector());
180: }
181: }
182:
183:
184: #########################################################
185: #########################################################
186: ##
187: ## Radio Response Routines
188: ##
189: #########################################################
190: #########################################################
191: sub RadioResponseAnalysis {
192: my ($r,$problem,$ProblemData,$Students) = @_;
193: my ($resource,$respid) = ($problem->{'resource'},
194: $problem->{'respid'});
195: my $analysis_html;
196: my $PerformanceData =
197: &Apache::loncoursedata::get_response_data
198: ($Students,$resource->{'symb'},$respid);
199: if (! defined($PerformanceData) ||
200: ref($PerformanceData) ne 'ARRAY' ) {
201: $analysis_html = '<h2>'.
202: &mt('There is no submission data for this resource').
203: '</h2>';
204: $r->print($analysis_html);
205: return;
206: }
207: if (exists($ENV{'form.ExcelOutput'})) {
208: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
209: $PerformanceData,$ProblemData);
210: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
211: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
212: $PerformanceData,$ProblemData);
213: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
214: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
215: $PerformanceData,$ProblemData);
216: } else {
217: $analysis_html .= '<h2>'.
218: &mt('The analysis you have selected is not supported at this time').
219: '</h2>';
220: }
221: $r->print($analysis_html);
222: }
223:
224: sub RR_Excel_output {
225: my ($r,$PerformanceData,$ProblemData) = @_;
226: return '<h1>No!</h1>';
227: }
228:
229: sub RR_Tries_Analysis {
230: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
231: my $analysis_html;
232: my $mintries = 1;
233: my $maxtries = $ENV{'form.NumPlots'};
234: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
235: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
236: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
237: $table = '<h3>'.
238: &mt('Not enough data for concept analysis. '.
239: 'Performing Foil Analysis').
240: '</h3>'.$table;
241: $ENV{'form.AnalyzeAs'} = 'Foils';
242: }
243: $analysis_html .= $table;
244: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
245: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
246: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
247: \@TryData,$ProblemData);
248: # } else {
249: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
250: # $Concepts,
251: # \@TryData,
252: # $ProblemData);
253: # }
254: return $analysis_html;
255: }
256:
257: sub RR_tries_data_analysis {
258: my ($r,$Attempt_data) = @_;
259: my @TryData;
260: foreach my $attempt (@$Attempt_data) {
261: my %Attempt = &hashify_attempt($attempt);
262: my ($answer,undef) = split('=',$Attempt{'submission'});
263: $TryData[$Attempt{'tries'}]->{$answer}++;
264: }
265: return @TryData;
266: }
267:
268: sub RR_Time_Analysis {
269: my ($r,$PerformanceData,$ProblemData) = @_;
270: my $html;
271: return $html;
272: }
273:
274: sub RR_Tries_Foil_Analysis {
275: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
276: my $html;
277: #
278: # Compute the data neccessary to make the plots
279: for (my $try=$min;$try<=$max;$try++) {
280: my @PlotData_Correct;
281: my @PlotData_Incorrect;
282: next if ($try > scalar(@{$TryData}));
283: next if (! defined($TryData->[$try]));
284: my %DataSet = %{$TryData->[$try]};
285: my $total = 0;
286: foreach my $foilid (@$Foils) {
287: $total += $DataSet{$foilid};
288: }
289: foreach my $foilid (@$Foils) {
290: if ($total == 0) {
291: push (@PlotData_Correct,0);
292: push (@PlotData_Incorrect,0);
293: } else {
294: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
295: push (@PlotData_Correct,
296: int(100*$DataSet{$foilid}/$total));
297: push (@PlotData_Incorrect,0);
298: } else {
299: push (@PlotData_Correct,0);
300: push (@PlotData_Incorrect,
301: int(100*$DataSet{$foilid}/$total));
302: }
303: }
304: }
305: my $title='Attempt '.$try;
306: my $xlabel = $total.' Submissions';
307: $html.= &Apache::loncommon::DrawBarGraph($title,
308: $xlabel,
309: 'Percent Choosing',
310: 100,
311: ['#33ff00','#ff3300'],
312: \@PlotData_Correct,
313: \@PlotData_Incorrect);
314: }
315: return $html;
316: }
317:
318: sub RR_Tries_Concept_Analysis {
319: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
320: my $html;
321: return $html;
322: }
323:
324: sub RR_Time_Foil_Analysis {
325: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
326: my $html;
327: return $html;
328: }
329:
330: sub RR_Time_Concept_Analysis {
331: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
332: my $html;
333: return $html;
334: }
335:
336:
337: sub get_Radio_problem_data {
338: my ($url) = @_;
339: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
340: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
341: my %Answer = &Apache::lonnet::str2hash($Answ);
342: my %Partdata;
343: foreach my $part (@{$Answer{'parts'}}) {
344: while (my($key,$value) = each(%Answer)) {
345: # if (ref($value) eq 'ARRAY') {
346: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
347: # } else {
348: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
349: # }
350: next if ($key !~ /^$part/);
351: $key =~ s/^$part\.//;
352: if ($key eq 'foils') {
353: $Partdata{$part}->{'_Foils'}=$value;
354: } elsif ($key eq 'options') {
355: $Partdata{$part}->{'_Options'}=$value;
356: } elsif ($key eq 'shown') {
357: $Partdata{$part}->{'_Shown'}=$value;
358: } elsif ($key =~ /^foil.value.(.*)$/) {
359: $Partdata{$part}->{$1}->{'value'}=$value;
360: } elsif ($key =~ /^foil.text.(.*)$/) {
361: $Partdata{$part}->{$1}->{'text'}=$value;
362: }
363: }
364: }
365: return %Partdata;
366: }
367:
368: #########################################################
369: #########################################################
370: ##
371: ## Option Response Routines
372: ##
373: #########################################################
374: #########################################################
375: sub OptionResponseAnalysis {
376: my ($r,$problem,$ProblemData,$Students) = @_;
377: my ($resource,$respid) = ($problem->{'resource'},
378: $problem->{'respid'});
379: # Note: part data is not needed.
380: my $PerformanceData =
381: &Apache::loncoursedata::get_response_data
382: ($Students,$resource->{'symb'},$respid);
383: if (! defined($PerformanceData) ||
384: ref($PerformanceData) ne 'ARRAY' ) {
385: $r->print('<h2>'.
386: &mt('There is no student data for this problem.').
387: '</h2>');
388: } else {
389: $r->rflush();
390: if (exists($ENV{'form.ExcelOutput'})) {
391: my $result = &OR_excel_sheet($r,$resource,
392: $PerformanceData,
393: $ProblemData);
394: $r->print($result);
395: $r->rflush();
396: } else {
397: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
398: my $analysis_html = &OR_tries_analysis($r,
399: $PerformanceData,
400: $ProblemData);
401: $r->print($analysis_html);
402: $r->rflush();
403: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
404: my $analysis_html = &OR_time_analysis($PerformanceData,
405: $ProblemData);
406: $r->print($analysis_html);
407: $r->rflush();
408: } else {
409: $r->print('<h2>'.
410: &mt('The analysis you have selected is '.
411: 'not supported at this time').
412: '</h2>');
413: }
414: }
415: }
416: }
417:
418: #########################################################
419: #
420: # Option Response: Tries Analysis
421: #
422: #########################################################
423: sub OR_tries_analysis {
424: my ($r,$PerformanceData,$ORdata) = @_;
425: my $mintries = 1;
426: my $maxtries = $ENV{'form.NumPlots'};
427: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
428: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
429: $table = '<h3>'.
430: &mt('Not enough data for concept analysis. '.
431: 'Performing Foil Analysis').
432: '</h3>'.$table;
433: $ENV{'form.AnalyzeAs'} = 'Foils';
434: }
435: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
436: $mintries,$maxtries);
437: my $analysis = '';
438: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
439: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
440: \%ResponseData,$ORdata);
441: } else {
442: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
443: $Concepts,\%ResponseData,$ORdata);
444: }
445: $table .= $analysis;
446: return $table;
447: }
448:
449: sub OR_Tries_Foil_Analysis {
450: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
451: my %ResponseData = %$respdat;
452: #
453: # Compute the data neccessary to make the plots
454: my @PlotData;
455: foreach my $foilid (@$Foils) {
456: for (my $i=$mintries;$i<=$maxtries;$i++) {
457: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
458: push(@{$PlotData[$i]->{'_correct'}},0);
459: } else {
460: push(@{$PlotData[$i]->{'_correct'}},
461: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
462: $ResponseData{$foilid}->[$i]->{'_total'});
463: }
464: foreach my $option (@{$ORdata->{'_Options'}}) {
465: push(@{$PlotData[$i]->{'_total'}},
466: $ResponseData{$foilid}->[$i]->{'_total'});
467: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
468: push (@{$PlotData[$i]->{$option}},0);
469: } else {
470: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
471: $ResponseData{$foilid}->[$i]->{'_correct'}) {
472: push(@{$PlotData[$i]->{$option}},0);
473: } else {
474: push (@{$PlotData[$i]->{$option}},
475: 100 * $ResponseData{$foilid}->[$i]->{$option} /
476: ($ResponseData{$foilid}->[$i]->{'_total'} -
477: $ResponseData{$foilid}->[$i]->{'_correct'}));
478: }
479: }
480: }
481: }
482: }
483: #
484: # Build a table for the plots
485: my $analysis_html = "<table>\n";
486: my $foilkey = &build_option_index($ORdata);
487: for (my $i=$mintries;$i<=$maxtries;$i++) {
488: my $count = $ResponseData{'_total'}->[$i];
489: if ($count == 0) {
490: $count = 'no submissions';
491: } elsif ($count == 1) {
492: $count = '1 submission';
493: } else {
494: $count = $count.' submissions';
495: }
496: my $title = 'Attempt '.$i.', '.$count;
497: my @Datasets;
498: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
499: next if (! exists($PlotData[$i]->{$option}));
500: push(@Datasets,$PlotData[$i]->{$option});
501: }
502: my $correctgraph = &Apache::loncommon::DrawBarGraph
503: ($title,'Foil Number','Percent Correct',
504: 100,$plotcolors,$Datasets[0]);
505: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
506: ##
507: ##
508: next if (! defined($Datasets[0]));
509: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
510: $Datasets[0]->[$i]=0;
511: }
512: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
513: if ($count == 0) {
514: $count = 'no submissions';
515: } elsif ($count == 1) {
516: $count = '1 submission';
517: } else {
518: $count = $count.' submissions';
519: }
520: $title = 'Attempt '.$i.', '.$count;
521: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
522: ($title,'Foil Number','% Option Chosen Incorrectly',
523: 100,$plotcolors,@Datasets);
524: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
525: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
526: }
527: $analysis_html .= "</table>\n";
528: return $analysis_html;
529: }
530:
531: sub OR_Tries_Concept_Analysis {
532: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
533: my %ResponseData = %$respdat;
534: my $analysis_html = "<table>\n";
535: #
536: # Compute the data neccessary to make the plots
537: my @PlotData;
538: # Concept analysis
539: #
540: # Note: we do not bother with characterizing the students incorrect
541: # answers at the concept level because an incorrect answer for one foil
542: # may be a correct answer for another foil.
543: my %ConceptData;
544: foreach my $concept (@{$Concepts}) {
545: for (my $i=$mintries;$i<=$maxtries;$i++) {
546: #
547: # Gather the per-attempt data
548: my $cdata = $ConceptData{$concept}->[$i];
549: foreach my $foilid (@{$concept->{'foils'}}) {
550: $cdata->{'_correct'} +=
551: $ResponseData{$foilid}->[$i]->{'_correct'};
552: $cdata->{'_total'} +=
553: $ResponseData{$foilid}->[$i]->{'_total'};
554: }
555: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
556: if ($cdata->{'_total'} == 0) {
557: push (@{$PlotData[$i]->{'_correct'}},0);
558: } else {
559: push (@{$PlotData[$i]->{'_correct'}},
560: 100*$cdata->{'_correct'}/$cdata->{'_total'});
561: }
562: }
563: }
564: # Build a table for the plots
565: for (my $i=$mintries;$i<=$maxtries;$i++) {
566: my $minstu = $PlotData[$i]->{'_total'}->[0];
567: my $maxstu = $PlotData[$i]->{'_total'}->[0];
568: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
569: if ($minstu > $count) {
570: $minstu = $count;
571: }
572: if ($maxstu < $count) {
573: $maxstu = $count;
574: }
575: }
576: $maxstu = 0 if (! defined($maxstu));
577: $minstu = 0 if (! defined($minstu));
578: my $title;
579: my $count = $ResponseData{'_total'}->[$i];
580: if ($count == 0) {
581: $count = 'no submissions';
582: } elsif ($count == 1) {
583: $count = '1 submission';
584: } else {
585: $count = $count.' submissions';
586: }
587: $title = 'Attempt '.$i.', '.$count;
588: my $graphlink = &Apache::loncommon::DrawBarGraph
589: ($title,'Concept Number','Percent Correct',
590: 100,$plotcolors,$PlotData[$i]->{'_correct'});
591: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
592: }
593: $analysis_html .= "</table>\n";
594: return $analysis_html;
595: }
596:
597: sub OR_analyze_by_tries {
598: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
599: my %Trydata;
600: $mintries = 1 if (! defined($mintries) || $mintries < 1);
601: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
602: foreach my $row (@$PerformanceData) {
603: next if (! defined($row));
604: my $tries = &get_tries_from_row($row);
605: my %Row = &Process_OR_Row($row);
606: next if (! %Row);
607: while (my ($foilid,$href) = each(%Row)) {
608: if (! ref($href)) {
609: $Trydata{$foilid}->[$tries] += $href;
610: next;
611: }
612: while (my ($option,$value) = each(%$href)) {
613: $Trydata{$foilid}->[$tries]->{$option}+=$value;
614: }
615: }
616: }
617: return %Trydata;
618: }
619:
620: #########################################################
621: #
622: # Option Response: Time Analysis
623: #
624: #########################################################
625: sub OR_time_analysis {
626: my ($PerformanceData,$ORdata) = @_;
627: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
628: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
629: $table = '<h3>'.
630: &mt('Not enough data for concept analysis. '.
631: 'Performing Foil Analysis').
632: '</h3>'.$table;
633: $ENV{'form.AnalyzeAs'} = 'Foils';
634: }
635: my $num_plots = $ENV{'form.NumPlots'};
636: my $num_data = scalar(@$PerformanceData)-1;
637: my $percent = sprintf('%2f',100/$num_plots);
638: #
639: $table .= "<table>\n";
640: for (my $i=0;$i<$num_plots;$i++) {
641: ##
642: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
643: ('startdate_'.$i);
644: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
645: ('enddate_'.$i);
646: if (! defined($starttime) || ! defined($endtime)) {
647: my $sec_in_day = 86400;
648: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
649: my ($sday,$smon,$syear);
650: (undef,undef,undef,$sday,$smon,$syear) =
651: localtime($last_sub_time - $sec_in_day*$i);
652: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
653: $endtime = $starttime + $sec_in_day;
654: if ($i == ($num_plots -1 )) {
655: $starttime = &get_time_from_row($PerformanceData->[0]);
656: }
657: }
658: my $startdateform = &Apache::lonhtmlcommon::date_setter
659: ('Statistics','startdate_'.$i,$starttime);
660: my $enddateform = &Apache::lonhtmlcommon::date_setter
661: ('Statistics','enddate_'.$i,$endtime);
662: #
663: my $begin_index;
664: my $end_index;
665: my $j;
666: while (++$j < scalar(@$PerformanceData)) {
667: last if (&get_time_from_row($PerformanceData->[$j])
668: > $starttime);
669: }
670: $begin_index = $j;
671: while (++$j < scalar(@$PerformanceData)) {
672: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
673: }
674: $end_index = $j;
675: ##
676: my $interval = {
677: begin_index => $begin_index,
678: end_index => $end_index,
679: startdateform => $startdateform,
680: enddateform => $enddateform,
681: };
682: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
683: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
684: $interval);
685: } else {
686: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
687: $Concepts,$interval);
688: }
689: }
690: #
691: return $table;
692: }
693:
694: sub OR_Foil_Time_Analysis {
695: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
696: my $analysis_html;
697: my $foilkey = &build_option_index($ORdata);
698: my ($begin_index,$end_index) = ($interval->{'begin_index'},
699: $interval->{'end_index'});
700: my %TimeData;
701: #
702: # Compute the number getting the foils correct or incorrects
703: for (my $j=$begin_index;$j<=$end_index;$j++) {
704: my $row = $PerformanceData->[$j];
705: next if (! defined($row));
706: my %Row = &Process_OR_Row($row);
707: while (my ($foilid,$href) = each(%Row)) {
708: if (! ref($href)) {
709: $TimeData{$foilid} += $href;
710: next;
711: }
712: while (my ($option,$value) = each(%$href)) {
713: $TimeData{$foilid}->{$option}+=$value;
714: }
715: }
716: }
717: my @Plotdata;
718: foreach my $foil (@$Foils) {
719: my $total = $TimeData{$foil}->{'_total'};
720: if ($total == 0) {
721: push(@{$Plotdata[0]},0);
722: } else {
723: push(@{$Plotdata[0]},
724: 100 * $TimeData{$foil}->{'_correct'} / $total);
725: }
726: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
727: my $optionidx = 1;
728: foreach my $option (@{$ORdata->{'_Options'}}) {
729: if ($total_incorrect == 0) {
730: push(@{$Plotdata[$optionidx]},0);
731: } else {
732: push(@{$Plotdata[$optionidx]},
733: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
734: }
735: } continue {
736: $optionidx++;
737: }
738: }
739: #
740: # Create the plot
741: my $count = $end_index-$begin_index;
742: my $title;
743: if ($count == 0) {
744: $title = 'no submissions';
745: } elsif ($count == 1) {
746: $title = 'one submission';
747: } else {
748: $title = $count.' submissions';
749: }
750: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
751: 'Foil Number',
752: 'Percent Correct',
753: 100,
754: $plotcolors,
755: $Plotdata[0]);
756: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
757: $Plotdata[0]->[$j]=0;
758: }
759: $count = $end_index-$begin_index-$TimeData{'_correct'};
760: if ($count == 0) {
761: $title = 'no submissions';
762: } elsif ($count == 1) {
763: $title = 'one submission';
764: } else {
765: $title = $count.' submissions';
766: }
767: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
768: 'Foil Number',
769: 'Incorrect Option Choice',
770: 100,
771: $plotcolors,
772: @Plotdata);
773: $analysis_html.='<tr>'.
774: '<td>'.$correctplot.'</td>'.
775: '<td>'.$incorrectplot.'</td>'.
776: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
777: $analysis_html.= '<tr>'.'<td colspan="3">'.
778: '<b>Start Time</b>:'.
779: ' '.$interval->{'startdateform'}.'<br />'.
780: '<b>End Time</b> : '.
781: ' '.$interval->{'enddateform'}.'<br />'.
782: # '<b>Plot Title</b> :'.
783: # (" "x3).$interval->{'titleform'}.
784: '</td>'.
785: "</tr>\n";
786: return $analysis_html;
787: }
788:
789: sub OR_Concept_Time_Analysis {
790: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
791: my $analysis_html;
792: ##
793: ## Determine starttime, endtime, startindex, endindex
794: my ($begin_index,$end_index) = ($interval->{'begin_index'},
795: $interval->{'end_index'});
796: my %TimeData;
797: #
798: # Compute the number getting the foils correct or incorrects
799: for (my $j=$begin_index;$j<=$end_index;$j++) {
800: my $row = $PerformanceData->[$j];
801: next if (! defined($row));
802: my %Row = &Process_OR_Row($row);
803: while (my ($foilid,$href) = each(%Row)) {
804: if (! ref($href)) {
805: $TimeData{$foilid} += $href;
806: next;
807: }
808: while (my ($option,$value) = each(%$href)) {
809: $TimeData{$foilid}->{$option}+=$value;
810: }
811: }
812: }
813: #
814: # Put the data in plottable form
815: my @Plotdata;
816: foreach my $concept (@$Concepts) {
817: my ($total,$correct);
818: foreach my $foil (@{$concept->{'foils'}}) {
819: $total += $TimeData{$foil}->{'_total'};
820: $correct += $TimeData{$foil}->{'_correct'};
821: }
822: if ($total == 0) {
823: push(@Plotdata,0);
824: } else {
825: push(@Plotdata,100 * $correct / $total);
826: }
827: }
828: #
829: # Create the plot
830: my $title = ($end_index - $begin_index).' submissions';
831: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
832: 'Concept Number',
833: 'Percent Correct',
834: 100,
835: $plotcolors,
836: \@Plotdata);
837: $analysis_html.='<tr>'.
838: '<td>'.$correctplot.'</td>'.
839: '<td align="left" valign="top">'.
840: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
841: '<b>End Time</b> : '.
842: ' '.$interval->{'enddateform'}.'<br />'.
843: # '<b>Plot Title</b> :'.(" "x3).
844: # $interval->{'titleform'}.
845: '</td>'.
846: "</tr>\n";
847: return $analysis_html;
848: }
849:
850: #########################################################
851: #########################################################
852: ##
853: ## Excel output
854: ##
855: #########################################################
856: #########################################################
857: sub OR_excel_sheet {
858: my ($r,$resource,$PerformanceData,$ORdata) = @_;
859: my $response = '';
860: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
861: #
862: # Create excel worksheet
863: my $filename = '/prtspool/'.
864: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
865: time.'_'.rand(1000000000).'.xls';
866: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
867: if (! defined($workbook)) {
868: $r->log_error("Error creating excel spreadsheet $filename: $!");
869: $r->print('<p>'.&mt("Unable to create new Excel file. ".
870: "This error has been logged. ".
871: "Please alert your LON-CAPA administrator").
872: '</p>');
873: return undef;
874: }
875: #
876: $workbook->set_tempdir('/home/httpd/perl/tmp');
877: #
878: # Define some potentially useful formats
879: my $format;
880: $format->{'header'} = $workbook->add_format(bold => 1,
881: bottom => 1,
882: align => 'center');
883: $format->{'bold'} = $workbook->add_format(bold=>1);
884: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
885: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
886: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
887: $format->{'date'} = $workbook->add_format(num_format=>
888: 'mmm d yyyy hh:mm AM/PM');
889: #
890: # Create and populate main worksheets
891: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
892: my $student_data_sheet = $workbook->addworksheet('Student Data');
893: my $response_data_sheet = $workbook->addworksheet('Response Data');
894: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
895: $response_data_sheet) {
896: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
897: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
898: }
899: #
900: my $result;
901: $result = &build_problem_data_worksheet($problem_data_sheet,$format,
902: $Concepts,$ORdata);
903: if ($result ne 'okay') {
904: # Do something useful
905: }
906: $result = &build_student_data_worksheet($student_data_sheet,$format);
907: if ($result ne 'okay') {
908: # Do something useful
909: }
910: $result = &build_response_data_worksheet($response_data_sheet,$format,
911: $PerformanceData,$Foils,
912: $ORdata);
913: if ($result ne 'okay') {
914: # Do something useful
915: }
916: $response_data_sheet->activate();
917: #
918: # Close the excel file
919: $workbook->close();
920: #
921: # Write a link to allow them to download it
922: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
923: '<p><a href="'.$filename.'">'.
924: &mt('Your Excel spreadsheet.').
925: '</a></p>'."\n";
926: return $result;
927: }
928:
929: sub OR_build_problem_data_worksheet {
930: my ($worksheet,$format,$Concepts,$ORdata) = @_;
931: my $rows_output = 3;
932: my $cols_output = 0;
933: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
934: ##
935: ##
936: my @Headers;
937: if (@$Concepts > 1) {
938: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
939: 'Foil Name','Foil Text','Correct value');
940: } else {
941: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
942: }
943: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
944: my %Foildata = %{$ORdata->{'_Foils'}};
945: my $conceptindex = 1;
946: my $foilindex = 1;
947: foreach my $concept (@$Concepts) {
948: my @FoilsInConcept = @{$concept->{'foils'}};
949: my $firstfoil = shift(@FoilsInConcept);
950: if (@$Concepts > 1) {
951: $worksheet->write_row($rows_output++,0,
952: [$conceptindex,
953: $concept->{'name'},
954: $foilindex++,
955: $Foildata{$firstfoil}->{'name'},
956: $Foildata{$firstfoil}->{'text'},
957: $Foildata{$firstfoil}->{'value'},]);
958: } else {
959: $worksheet->write_row($rows_output++,0,
960: [ $foilindex++,
961: $Foildata{$firstfoil}->{'name'},
962: $Foildata{$firstfoil}->{'text'},
963: $Foildata{$firstfoil}->{'value'},]);
964: }
965: foreach my $foilid (@FoilsInConcept) {
966: if (@$Concepts > 1) {
967: $worksheet->write_row($rows_output++,0,
968: ['',
969: '',
970: $foilindex,
971: $Foildata{$foilid}->{'name'},
972: $Foildata{$foilid}->{'text'},
973: $Foildata{$foilid}->{'value'},]);
974: } else {
975: $worksheet->write_row($rows_output++,0,
976: [$foilindex,
977: $Foildata{$foilid}->{'name'},
978: $Foildata{$foilid}->{'text'},
979: $Foildata{$foilid}->{'value'},]);
980: }
981: } continue {
982: $foilindex++;
983: }
984: } continue {
985: $conceptindex++;
986: }
987: $rows_output++;
988: $rows_output++;
989: ##
990: ## Option data output
991: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
992: foreach my $string (@{$ORdata->{'_Options'}}) {
993: $worksheet->write($rows_output++,0,$string);
994: }
995: return 'okay';
996: }
997:
998: sub OR_build_student_data_worksheet {
999: my ($worksheet,$format) = @_;
1000: my $rows_output = 3;
1001: my $cols_output = 0;
1002: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
1003: my @Headers = ('full name','username','domain','section',
1004: "student\nnumber",'identifier');
1005: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1006: my @Students = @Apache::lonstatistics::Students;
1007: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
1008: my %ids;
1009: foreach my $row (@$studentrows) {
1010: my ($mysqlid,$student) = @$row;
1011: $ids{$student}=$mysqlid;
1012: }
1013: foreach my $student (@Students) {
1014: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
1015: $worksheet->write_row($rows_output++,0,
1016: [$student->{'fullname'},
1017: $student->{'username'},$student->{'domain'},
1018: $student->{'section'},$student->{'id'},
1019: $ids{$name_domain}]);
1020: }
1021: return;
1022: }
1023:
1024: sub OR_build_response_data_worksheet {
1025: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1026: my $rows_output = 3;
1027: my $cols_output = 0;
1028: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1029: $worksheet->set_column(1,1,20);
1030: $worksheet->set_column(2,2,13);
1031: my @Headers = ('identifier','time','award detail','attempt');
1032: foreach my $foil (@$Foils) {
1033: push (@Headers,$foil.' submission');
1034: push (@Headers,$foil.' grading');
1035: }
1036: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1037: #
1038: foreach my $row (@$PerformanceData) {
1039: next if (! defined($row));
1040: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1041: my @Foilgrades = split('&',$grading);
1042: my @Foilsubs = split('&',$submission);
1043: my %ResponseData;
1044: for (my $j=0;$j<=$#Foilgrades;$j++) {
1045: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1046: my (undef,$submission) = split('=',$Foilsubs[$j]);
1047: $submission = &Apache::lonnet::unescape($submission);
1048: $ResponseData{$foilid.' submission'}=$submission;
1049: $ResponseData{$foilid.' award'}=$correct;
1050: }
1051: $worksheet->write($rows_output,$cols_output++,$student);
1052: $worksheet->write($rows_output,$cols_output++,
1053: &calc_serial($time),$format->{'date'});
1054: $worksheet->write($rows_output,$cols_output++,$award);
1055: $worksheet->write($rows_output,$cols_output++,$tries);
1056: foreach my $foilid (@$Foils) {
1057: $worksheet->write($rows_output,$cols_output++,
1058: $ResponseData{$foilid.' submission'});
1059: $worksheet->write($rows_output,$cols_output++,
1060: $ResponseData{$foilid.' award'});
1061: }
1062: $rows_output++;
1063: $cols_output = 0;
1064: }
1065: return;
1066: }
1067:
1068:
1069: ##
1070: ## The following is copied from datecalc1.pl, part of the
1071: ## Spreadsheet::WriteExcel CPAN module.
1072: ##
1073: ##
1074: ######################################################################
1075: #
1076: # Demonstration of writing date/time cells to Excel spreadsheets,
1077: # using UNIX/Perl time as source of date/time.
1078: #
1079: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
1080: #
1081: ######################################################################
1082: #
1083: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
1084: # measured in seconds.
1085: #
1086: # An Excel file can use exactly one of two different date/time systems.
1087: # In these systems, a floating point number represents the number of days
1088: # (and fractional parts of the day) since a start point. The floating point
1089: # number is referred to as a 'serial'.
1090: # The two systems ('1900' and '1904') use different starting points:
1091: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
1092: # a leap year - see:
1093: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
1094: # for the excuse^H^H^H^H^H^Hreason.
1095: # '1904'; '1.00' is 2 Jan 1904.
1096: #
1097: # The '1904' system is the default for Apple Macs. Windows versions of
1098: # Excel have the option to use the '1904' system.
1099: #
1100: # Note that Visual Basic's "DateSerial" function does NOT erroneously
1101: # regard 1900 as a leap year, and thus its serials do not agree with
1102: # the 1900 serials of Excel for dates before 1 Mar 1900.
1103: #
1104: # Note that StarOffice (at least at version 5.2) does NOT erroneously
1105: # regard 1900 as a leap year, and thus its serials do not agree with
1106: # the 1900 serials of Excel for dates before 1 Mar 1900.
1107: #
1108: ######################################################################
1109: #
1110: # Calculation description
1111: # =======================
1112: #
1113: # 1900 system
1114: # -----------
1115: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
1116: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1117: # were leap years with an extra day.
1118: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
1119: # 1 Jan 1970.
1120: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
1121: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
1122: #
1123: # 1904 system
1124: # -----------
1125: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
1126: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1127: # were leap years with an extra day.
1128: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
1129: # 1 Jan 1970.
1130: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
1131: #
1132: ######################################################################
1133: #
1134: # Copyright (c) 2000, Andrew Benham.
1135: # This program is free software. It may be used, redistributed and/or
1136: # modified under the same terms as Perl itself.
1137: #
1138: # Andrew Benham, adsb@bigfoot.com
1139: # London, United Kingdom
1140: # 11 Nov 2000
1141: #
1142: ######################################################################
1143:
1144: # Use 1900 date system on all platforms other than Apple Mac (for which
1145: # use 1904 date system).
1146: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
1147:
1148: #-----------------------------------------------------------
1149: # calc_serial()
1150: #
1151: # Called with (up to) 2 parameters.
1152: # 1. Unix timestamp. If omitted, uses current time.
1153: # 2. GMT flag. Set to '1' to return serial in GMT.
1154: # If omitted, returns serial in appropriate timezone.
1155: #
1156: # Returns date/time serial according to $DATE_SYSTEM selected
1157: #-----------------------------------------------------------
1158: sub calc_serial {
1159: my $time = (defined $_[0]) ? $_[0] : time();
1160: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
1161:
1162: # Divide timestamp by number of seconds in a day.
1163: # This gives a date serial with '0' on 1 Jan 1970.
1164: my $serial = $time / 86400;
1165:
1166: # Adjust the date serial by the offset appropriate to the
1167: # currently selected system (1900/1904).
1168: if ($DATE_SYSTEM == 0) { # use 1900 system
1169: $serial += 25569;
1170: } else { # use 1904 system
1171: $serial += 24107;
1172: }
1173:
1174: unless ($gmtflag) {
1175: # Now have a 'raw' serial with the right offset. But this
1176: # gives a serial in GMT, which is false unless the timezone
1177: # is GMT. We need to adjust the serial by the appropriate
1178: # timezone offset.
1179: # Calculate the appropriate timezone offset by seeing what
1180: # the differences between localtime and gmtime for the given
1181: # time are.
1182:
1183: my @gmtime = gmtime($time);
1184: my @ltime = localtime($time);
1185:
1186: # For the first 7 elements of the two arrays, adjust the
1187: # date serial where the elements differ.
1188: for (0 .. 6) {
1189: my $diff = $ltime[$_] - $gmtime[$_];
1190: if ($diff) {
1191: $serial += _adjustment($diff,$_);
1192: }
1193: }
1194: }
1195:
1196: # Perpetuate the error that 1900 was a leap year by decrementing
1197: # the serial if we're using the 1900 system and the date is prior to
1198: # 1 Mar 1900. This has the effect of making serial value '60'
1199: # 29 Feb 1900.
1200:
1201: # This fix only has any effect if UNIX/Perl time on the platform
1202: # can represent 1900. Many can't.
1203:
1204: unless ($DATE_SYSTEM) {
1205: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
1206: }
1207: return $serial;
1208: }
1209:
1210: sub _adjustment {
1211: # Based on the difference in the localtime/gmtime array elements
1212: # number, return the adjustment required to the serial.
1213:
1214: # We only look at some elements of the localtime/gmtime arrays:
1215: # seconds unlikely to be different as all known timezones
1216: # have an offset of integral multiples of 15 minutes,
1217: # but it's easy to do.
1218: # minutes will be different for timezone offsets which are
1219: # not an exact number of hours.
1220: # hours very likely to be different.
1221: # weekday will differ when localtime/gmtime difference
1222: # straddles midnight.
1223: #
1224: # Assume that difference between localtime and gmtime is less than
1225: # 5 days, then don't have to do maths for day of month, month number,
1226: # year number, etc...
1227:
1228: my ($delta,$element) = @_;
1229: my $adjust = 0;
1230:
1231: if ($element == 0) { # Seconds
1232: $adjust = $delta/86400; # 60 * 60 * 24
1233: } elsif ($element == 1) { # Minutes
1234: $adjust = $delta/1440; # 60 * 24
1235: } elsif ($element == 2) { # Hours
1236: $adjust = $delta/24; # 24
1237: } elsif ($element == 6) { # Day of week number
1238: # Catch difference straddling Sat/Sun in either direction
1239: $delta += 7 if ($delta < -4);
1240: $delta -= 7 if ($delta > 4);
1241:
1242: $adjust = $delta;
1243: }
1244: return $adjust;
1245: }
1246:
1247: sub build_foil_index {
1248: my ($ORdata) = @_;
1249: return if (! exists($ORdata->{'_Foils'}));
1250: my %Foildata = %{$ORdata->{'_Foils'}};
1251: my @Foils = sort(keys(%Foildata));
1252: my %Concepts;
1253: foreach my $foilid (@Foils) {
1254: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1255: $foilid);
1256: }
1257: undef(@Foils);
1258: # Having gathered the concept information in a hash, we now translate it
1259: # into an array because we need to be consistent about order.
1260: # Also put the foils in order, too.
1261: my $sortfunction = sub {
1262: my %Numbers = (one => 1,
1263: two => 2,
1264: three => 3,
1265: four => 4,
1266: five => 5,
1267: six => 6,
1268: seven => 7,
1269: eight => 8,
1270: nine => 9,
1271: ten => 10,);
1272: my $a1 = lc($a);
1273: my $b1 = lc($b);
1274: if (exists($Numbers{$a1})) {
1275: $a = $Numbers{$a1};
1276: }
1277: if (exists($Numbers{$b1})) {
1278: $b = $Numbers{$b1};
1279: }
1280: if (($a =~/^\d+$/) && ($b =~/^\d+$/)) {
1281: return $a <=> $b;
1282: } else {
1283: return $a cmp $b;
1284: }
1285: };
1286: my @Concepts;
1287: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1288: if (! defined($Concepts{$concept})) {
1289: $Concepts{$concept}=[];
1290: # next;
1291: }
1292: push(@Concepts,{ name => $concept,
1293: foils => [@{$Concepts{$concept}}]});
1294: push(@Foils,(@{$Concepts{$concept}}));
1295: }
1296: #
1297: # Build up the table of row labels.
1298: my $table = '<table border="1" >'."\n";
1299: if (@Concepts > 1) {
1300: $table .= '<tr>'.
1301: '<th>'.&mt('Concept Number').'</th>'.
1302: '<th>'.&mt('Concept').'</th>'.
1303: '<th>'.&mt('Foil Number').'</th>'.
1304: '<th>'.&mt('Foil Name').'</th>'.
1305: '<th>'.&mt('Foil Text').'</th>'.
1306: '<th>'.&mt('Correct Value').'</th>'.
1307: "</tr>\n";
1308: } else {
1309: $table .= '<tr>'.
1310: '<th>'.&mt('Foil Number').'</th>'.
1311: '<th>'.&mt('Foil Name').'</th>'.
1312: '<th>'.&mt('Foil Text').'</th>'.
1313: '<th>'.&mt('Correct Value').'</th>'.
1314: "</tr>\n";
1315: }
1316: my $conceptindex = 1;
1317: my $foilindex = 1;
1318: foreach my $concept (@Concepts) {
1319: my @FoilsInConcept = @{$concept->{'foils'}};
1320: my $firstfoil = shift(@FoilsInConcept);
1321: if (@Concepts > 1) {
1322: $table .= '<tr>'.
1323: '<td>'.$conceptindex.'</td>'.
1324: '<td>'.$concept->{'name'}.'</td>'.
1325: '<td>'.$foilindex++.'</td>'.
1326: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1327: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1328: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1329: "</tr>\n";
1330: } else {
1331: $table .= '<tr>'.
1332: '<td>'.$foilindex++.'</td>'.
1333: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1334: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1335: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1336: "</tr>\n";
1337: }
1338: foreach my $foilid (@FoilsInConcept) {
1339: if (@Concepts > 1) {
1340: $table .= '<tr>'.
1341: '<td></td>'.
1342: '<td></td>'.
1343: '<td>'.$foilindex.'</td>'.
1344: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1345: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1346: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1347: "</tr>\n";
1348: } else {
1349: $table .= '<tr>'.
1350: '<td>'.$foilindex.'</td>'.
1351: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1352: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1353: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1354: "</tr>\n";
1355: }
1356: } continue {
1357: $foilindex++;
1358: }
1359: } continue {
1360: $conceptindex++;
1361: }
1362: $table .= "</table>\n";
1363: #
1364: # Build option index with color stuff
1365: return ($table,\@Foils,\@Concepts);
1366: }
1367:
1368: sub build_option_index {
1369: my ($ORdata)= @_;
1370: my $table = "<table>\n";
1371: my $optionindex = 0;
1372: my @Rows;
1373: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1374: push (@Rows,
1375: '<tr>'.
1376: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1377: (' 'x4).'</td>'.
1378: '<td>'.$option.'</td>'.
1379: "</tr>\n");
1380: }
1381: shift(@Rows); # Throw away 'correct option chosen' color
1382: $table .= join('',reverse(@Rows));
1383: $table .= "</table>\n";
1384: }
1385:
1386: #########################################################
1387: #########################################################
1388: ##
1389: ## Generic Interface Routines
1390: ##
1391: #########################################################
1392: #########################################################
1393: sub CreateInterface {
1394: ##
1395: ## Environment variable initialization
1396: if (! exists$ENV{'form.AnalyzeOver'}) {
1397: $ENV{'form.AnalyzeOver'} = 'Tries';
1398: }
1399: ##
1400: ## Build the menu
1401: my $Str = '';
1402: $Str .= '<table cellspacing="5">'."\n";
1403: $Str .= '<tr>';
1404: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1405: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1406: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1407: $Str .= '<td align="center"> </td>';
1408: $Str .= '</tr>'."\n";
1409: ##
1410: ##
1411: $Str .= '<tr><td align="center">'."\n";
1412: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1413: $Str .= '</td>';
1414: #
1415: $Str .= '<td align="center">';
1416: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1417: $Str .= '</td>';
1418: #
1419: # $Str .= '<td align="center">';
1420: my $only_seq_with_assessments = sub {
1421: my $s=shift;
1422: if ($s->{'num_assess'} < 1) {
1423: return 0;
1424: } else {
1425: return 1;
1426: }
1427: };
1428: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1429: $only_seq_with_assessments);
1430: ##
1431: ##
1432: $Str .= '<td>';
1433: { # These braces are here to organize the code, not scope it.
1434: {
1435: $Str .= '<nobr>'.&mt('Analyze Over ');
1436: $Str .= &Apache::loncommon::help_open_topic
1437: ('Analysis_Analyze_Over');
1438: $Str .='<select name="AnalyzeOver" >';
1439: $Str .= '<option value="Tries" ';
1440: if (! exists($ENV{'form.AnalyzeOver'}) ||
1441: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1442: # Default to Tries
1443: $Str .= ' selected ';
1444: }
1445: $Str .= '>'.&mt('Tries').'</option>';
1446: $Str .= '<option value="Time" ';
1447: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1448: $Str .= '>'.&mt('Time').'</option>';
1449: $Str .= '</select>';
1450: $Str .= '</nobr><br />';
1451: }
1452: {
1453: $Str .= '<nobr>'.&mt('Analyze as ');
1454: $Str .= &Apache::loncommon::help_open_topic
1455: ('Analysis_Analyze_as');
1456: $Str .='<select name="AnalyzeAs" >';
1457: $Str .= '<option value="Concepts" ';
1458: if (! exists($ENV{'form.AnalyzeAs'}) ||
1459: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1460: # Default to Concepts
1461: $Str .= ' selected ';
1462: }
1463: $Str .= '>'.&mt('Concepts').'</option>';
1464: $Str .= '<option value="Foils" ';
1465: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1466: $Str .= '>'.&mt('Foils').'</option>';
1467: $Str .= '</select></nobr><br />';
1468: }
1469: {
1470: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1471: $Str .= &Apache::loncommon::help_open_topic
1472: ('Analysis_num_plots');
1473: $Str .= '<select name="NumPlots">';
1474: if (! exists($ENV{'form.NumPlots'})
1475: || $ENV{'form.NumPlots'} < 1
1476: || $ENV{'form.NumPlots'} > 20) {
1477: $ENV{'form.NumPlots'} = 5;
1478: }
1479: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1480: $Str .= '<option value="'.$i.'" ';
1481: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1482: $Str .= '>'.$i.'</option>';
1483: }
1484: $Str .= '</select></nobr>';
1485: }
1486: }
1487: $Str .= '</td>';
1488: ##
1489: ##
1490: $Str .= '</tr>'."\n";
1491: $Str .= '</table>'."\n";
1492: return $Str;
1493: }
1494:
1495: sub ProblemSelector {
1496: my $Str;
1497: $Str = "\n<table>\n";
1498: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1499: next if ($seq->{'num_assess'}<1);
1500: my $seq_str = '';
1501: foreach my $res (@{$seq->{'contents'}}) {
1502: next if ($res->{'type'} ne 'assessment');
1503: foreach my $part (@{$res->{'parts'}}) {
1504: my $partdata = $res->{'partdata'}->{$part};
1505: # &Apache::lonnet::logthis('----------------');
1506: # while (my ($k,$v)=each(%$partdata)) {
1507: # if (ref($v) eq 'ARRAY') {
1508: # &Apache::lonnet::logthis($k.' = '.join(',',@$v));
1509: # } else {
1510: # &Apache::lonnet::logthis($k.' = '.$v);
1511: # }
1512: # }
1513: if ((! exists($partdata->{'option'}) ||
1514: $partdata->{'option'} == 0 ) &&
1515: (! exists($partdata->{'radiobutton'}) ||
1516: $partdata->{'radiobutton'} == 0)) {
1517: next;
1518: }
1519: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1520: my $respid = $partdata->{'ResponseIds'}->[$i];
1521: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1522: # if ($resptype eq 'option' ){
1523: if ($resptype eq 'option' || $resptype eq 'radiobutton') {
1524: my $value = &make_target_id({symb=>$res->{'symb'},
1525: part=>$part,
1526: respid=>$respid,
1527: resptype=>$resptype});
1528: my $checked = '';
1529: if ($ENV{'form.problemchoice'} eq $value) {
1530: $checked = 'checked ';
1531: }
1532: my $title = $res->{'title'};
1533: if (! defined($title) || $title eq '') {
1534: ($title) = ($res->{'src'} =~ m:/([^/]*)$:);
1535: }
1536: $seq_str .= '<tr><td>'.
1537: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
1538: '</td><td>'.
1539: $resptype.'</td><td>'.
1540: '<a href="'.$res->{'src'}.'">'.$title.'</a> ';
1541: # '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> ';
1542: if ($partdata->{'option'} > 1) {
1543: $seq_str .= &mt('response').' '.$respid;
1544: }
1545: $seq_str .= "</td></tr>\n";
1546: }
1547: }
1548: }
1549: }
1550: if ($seq_str ne '') {
1551: $Str .= '<tr><td> </td><td colspan="2"><b>'.$seq->{'title'}.'</b></td>'.
1552: "</tr>\n".$seq_str;
1553: }
1554: }
1555: $Str .= "</table>\n";
1556: return $Str;
1557: }
1558:
1559: #########################################################
1560: #########################################################
1561: ##
1562: ## Misc functions
1563: ##
1564: #########################################################
1565: #########################################################
1566: sub get_problem_symb {
1567: my $problemstring = shift();
1568: my ($symb,$partid,$respid,$resptype) = split(':',$problemstring);
1569: return ({ symb => $symb,
1570: part => $partid,
1571: respid => $respid,
1572: type => $resptype } );
1573: }
1574:
1575: sub get_resource_from_symb {
1576: my ($symb) = @_;
1577: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1578: foreach my $res (@{$seq->{'contents'}}) {
1579: if ($res->{'symb'} eq $symb) {
1580: return $res;
1581: }
1582: }
1583: }
1584: return undef;
1585: }
1586:
1587: sub get_prev_curr_next {
1588: my ($target) = @_;
1589: #
1590: # Build an array with the data we need to search through
1591: my @Resource;
1592: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1593: foreach my $res (@{$seq->{'contents'}}) {
1594: next if ($res->{'type'} ne 'assessment');
1595: foreach my $part (@{$res->{'parts'}}) {
1596: my $partdata = $res->{'partdata'}->{$part};
1597: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1598: my $respid = $partdata->{'ResponseIds'}->[$i];
1599: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1600: next if ($resptype ne 'option' &&
1601: $resptype ne 'radiobutton');
1602: push (@Resource,
1603: { symb => $res->{symb},
1604: part => $part,
1605: respid => $partdata->{'ResponseIds'}->[$i],
1606: resource => $res,
1607: resptype => $resptype
1608: } );
1609: }
1610: }
1611: }
1612: }
1613: #
1614: #
1615: # Get the index of the current situation
1616: my $curr_idx;
1617: for ($curr_idx=0;$curr_idx<$#Resource;$curr_idx++) {
1618: my $curr_item = $Resource[$curr_idx];
1619: last if ($curr_item->{'symb'} eq $target->{'symb'} &&
1620: $curr_item->{'part'} eq $target->{'part'} &&
1621: $curr_item->{'respid'} eq $target->{'respid'} &&
1622: $curr_item->{'resptype'} eq $target->{'resptype'});
1623: }
1624: my $curr_item = $Resource[$curr_idx];
1625: if ($curr_item->{'symb'} ne $target->{'symb'} ||
1626: $curr_item->{'part'} ne $target->{'part'} ||
1627: $curr_item->{'respid'} ne $target->{'respid'} ||
1628: $curr_item->{'resptype'} ne $target->{'resptype'}){
1629: # bogus symb - return nothing
1630: return (undef,undef,undef);
1631: }
1632: #
1633: # Now just pick up the data we need
1634: my ($prev,$curr,$next);
1635: if ($curr_idx == 0) {
1636: $prev = undef;
1637: $curr = $Resource[$curr_idx ];
1638: $next = $Resource[$curr_idx+1];
1639: } elsif ($curr_idx == $#Resource) {
1640: $prev = $Resource[$curr_idx-1];
1641: $curr = $Resource[$curr_idx ];
1642: $next = undef;
1643: } else {
1644: $prev = $Resource[$curr_idx-1];
1645: $curr = $Resource[$curr_idx ];
1646: $next = $Resource[$curr_idx+1];
1647: }
1648: return ($prev,$curr,$next);
1649: }
1650:
1651: sub make_target_id {
1652: my ($target) = @_;
1653: my $id = &Apache::lonnet::escape($target->{'symb'}).':'.
1654: &Apache::lonnet::escape($target->{'part'}).':'.
1655: &Apache::lonnet::escape($target->{'respid'}).':'.
1656: &Apache::lonnet::escape($target->{'resptype'});
1657: return $id;
1658: }
1659:
1660: sub get_target_from_id {
1661: my ($id) = @_;
1662: my ($symb,$part,$respid,$resptype) = split(':',$id);
1663: return ({ symb =>&Apache::lonnet::unescape($symb),
1664: part =>&Apache::lonnet::unescape($part),
1665: respid =>&Apache::lonnet::unescape($respid),
1666: resptype =>&Apache::lonnet::unescape($resptype)});
1667: }
1668:
1669: #########################################################
1670: #########################################################
1671: ##
1672: ## Misc Option Response functions
1673: ##
1674: #########################################################
1675: #########################################################
1676: sub get_time_from_row {
1677: my ($row) = @_;
1678: if (ref($row)) {
1679: return $row->[&Apache::loncoursedata::RD_timestamp()];
1680: }
1681: return undef;
1682: }
1683:
1684: sub get_tries_from_row {
1685: my ($row) = @_;
1686: if (ref($row)) {
1687: return $row->[&Apache::loncoursedata::RD_tries()];
1688: }
1689: return undef;
1690: }
1691:
1692: sub hashify_attempt {
1693: my ($row) = @_;
1694: my %attempt;
1695: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1696: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1697: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1698: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1699: return %attempt;
1700: }
1701:
1702: sub Process_OR_Row {
1703: my ($row) = @_;
1704: my %RowData;
1705: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1706: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1707: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1708: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1709: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1710: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1711: return undef if ($award eq 'MISSING_ANSWER');
1712: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1713: $RowData{'_correct'} = 1;
1714: }
1715: $RowData{'_total'} = 1;
1716: my @Foilgrades = split('&',$grading);
1717: my @Foilsubs = split('&',$submission);
1718: for (my $j=0;$j<=$#Foilgrades;$j++) {
1719: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1720: $foilid = &Apache::lonnet::unescape($foilid);
1721: my (undef,$submission) = split('=',$Foilsubs[$j]);
1722: if ($correct) {
1723: $RowData{$foilid}->{'_correct'}++;
1724: } else {
1725: $submission = &Apache::lonnet::unescape($submission);
1726: $RowData{$foilid}->{$submission}++;
1727: }
1728: $RowData{$foilid}->{'_total'}++;
1729: }
1730: return %RowData;
1731: }
1732:
1733: ##
1734: ## get problem data and put it into a useful data structure.
1735: ## note: we must force each foil and option to not begin or end with
1736: ## spaces as they are stored without such data.
1737: ##
1738: sub get_problem_data {
1739: my ($url) = @_;
1740: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1741: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1742: my %Answer;
1743: %Answer=&Apache::lonnet::str2hash($Answ);
1744: my %Partdata;
1745: foreach my $part (@{$Answer{'parts'}}) {
1746: while (my($key,$value) = each(%Answer)) {
1747: next if ($key !~ /^$part/);
1748: $key =~ s/^$part\.//;
1749: if (ref($value) eq 'ARRAY') {
1750: if ($key eq 'options') {
1751: $Partdata{$part}->{'_Options'}=$value;
1752: } elsif ($key eq 'concepts') {
1753: $Partdata{$part}->{'_Concepts'}=$value;
1754: } elsif ($key =~ /^concept\.(.*)$/) {
1755: my $concept = $1;
1756: foreach my $foil (@$value) {
1757: $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
1758: $concept;
1759: }
1760: }
1761: } else {
1762: if ($key=~ /^foil\.text\.(.*)$/) {
1763: my $foil = $1;
1764: $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;
1765: $value =~ s/(\s*$|^\s*)//g;
1766: $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;
1767: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1768: my $foil = $1;
1769: $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;
1770: }
1771: }
1772: }
1773: }
1774: return %Partdata;
1775: }
1776:
1777: 1;
1778:
1779: __END__
1780:
1781: #####
1782: # partdata{part}->{_Foils}->{foilid}->{'name'} = $
1783: # ->{'text'} = $
1784: # ->{'value'} = $
1785: # ->{'_Concept'} = $
1786: # partdata{part}->{_Options} = @
1787: # partdata{part}->{_Concepts} = @
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