1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.75 2004/03/11 19:34:10 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 Apache::lonstathelpers();
37: use Apache::lonstudentsubmissions();
38: use HTML::Entities();
39: use Time::Local();
40: use Spreadsheet::WriteExcel();
41:
42: my $plotcolors = ['#33ff00',
43: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
44: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
45: ];
46:
47: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
48: text => 'Previous Problem' },
49: { name => 'ProblemAnalysis',
50: text => 'Analyze Problem Again' },
51: { name => 'NextProblemAnalysis',
52: text => 'Next Problem' },
53: { name => 'break'},
54: { name => 'ClearCache',
55: text => 'Clear Caches' },
56: { name => 'updatecaches',
57: text => 'Update Student Data' },
58: { name => 'SelectAnother',
59: text => 'Choose a different Problem' },
60: { name => 'ExcelOutput',
61: text => 'Produce Excel Output' });
62:
63:
64: sub BuildProblemAnalysisPage {
65: my ($r,$c)=@_;
66: #
67: my %Saveable_Parameters = ('Status' => 'scalar',
68: 'Section' => 'array',
69: 'NumPlots' => 'scalar',
70: 'AnalyzeAs' => 'scalar',
71: 'AnalyzeOver' => 'scalar',
72: );
73: &Apache::loncommon::store_course_settings('problem_analysis',
74: \%Saveable_Parameters);
75: &Apache::loncommon::restore_course_settings('problem_analysis',
76: \%Saveable_Parameters);
77: #
78: &Apache::lonstatistics::PrepareClasslist();
79: #
80: $r->print(&CreateInterface());
81: #
82: my @Students = @Apache::lonstatistics::Students;
83: #
84: if (@Students < 1) {
85: $r->print('<h2>There are no students in the sections selected</h2>');
86: }
87: #
88: &Apache::loncoursedata::clear_internal_caches();
89: if (exists($ENV{'form.ClearCache'}) ||
90: exists($ENV{'form.updatecaches'}) ||
91: (exists($ENV{'form.firstanalysis'}) &&
92: $ENV{'form.firstanalysis'} ne 'no')) {
93: &Apache::lonstatistics::Gather_Full_Student_Data($r);
94: }
95: if (! exists($ENV{'form.firstanalysis'})) {
96: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
97: } else {
98: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
99: }
100: $r->rflush();
101: #
102: my $problem_types = '(option|radiobutton)';
103: if (exists($ENV{'form.problemchoice'}) &&
104: ! exists($ENV{'form.SelectAnother'})) {
105: foreach my $button (@SubmitButtons) {
106: if ($button->{'name'} eq 'break') {
107: $r->print("<br />\n");
108: } else {
109: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
110: 'value="'.&mt($button->{'text'}).'" />');
111: $r->print(' 'x5);
112: }
113: }
114: #
115: $r->print('<hr />');
116: $r->rflush();
117: #
118: # Determine which problem we are to analyze
119: my $current_problem = &Apache::lonstathelpers::get_target_from_id
120: ($ENV{'form.problemchoice'});
121: #
122: my ($prev,$curr,$next) =
123: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
124: $problem_types,
125: 'response',
126: );
127: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
128: $current_problem = $prev;
129: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
130: $current_problem = $next;
131: } else {
132: $current_problem = $curr;
133: }
134: #
135: # Store the current problem choice and send it out in the form
136: $ENV{'form.problemchoice'} =
137: &Apache::lonstathelpers::make_target_id($current_problem);
138: $r->print('<input type="hidden" name="problemchoice" value="'.
139: $ENV{'form.problemchoice'}.'" />');
140: #
141: if (! defined($current_problem->{'resource'})) {
142: $r->print('resource is undefined');
143: } else {
144: my $resource = $current_problem->{'resource'};
145: $r->print('<h1>'.$resource->{'title'}.'</h1>');
146: $r->print('<h3>'.$resource->{'src'}.'</h3>');
147: $r->print(&Apache::lonstathelpers::render_resource($resource));
148: $r->rflush();
149: my %Data = &Apache::lonstathelpers::get_problem_data
150: ($resource->{'src'});
151: my $ProblemData = $Data{$current_problem->{'part'}.
152: '.'.
153: $current_problem->{'respid'}};
154: if ($current_problem->{'resptype'} eq 'option') {
155: &OptionResponseAnalysis($r,$current_problem,
156: $ProblemData,
157: \@Students);
158: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
159: &RadioResponseAnalysis($r,$current_problem,
160: $ProblemData,
161: \@Students);
162: } elsif ($current_problem->{'resptype'} eq 'numerical') {
163: # if (exists($ENV{'form.ExcelOutput'})) {
164: &Apache::lonstudentsubmissions::prepare_excel_output
165: ($r,$current_problem,$ProblemData,\@Students);
166: # } else {
167: # &NumericalResponseAnalysis($r,$current_problem,
168: # $ProblemData,\@Students);
169: # }
170: } else {
171: $r->print('<h2>This analysis is not supported</h2>');
172: }
173: }
174: $r->print('<hr />');
175: } else {
176: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
177: &mt('Analyze Problem').'" />');
178: $r->print(' 'x5);
179: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
180: $r->print(&Apache::lonstathelpers::ProblemSelector
181: ($problem_types));
182: }
183: }
184:
185:
186: #########################################################
187: #########################################################
188: ##
189: ## Numerical Response Routines
190: ##
191: #########################################################
192: #########################################################
193: sub NumericalResponseAnalysis {
194: my ($r,$problem,$ProblemData,$Students) = @_;
195: $r->print('<h2>This analysis is not yet supported</h2>');
196: my ($resource,$respid) = ($problem->{'resource'},
197: $problem->{'respid'});
198: my $analysis_html;
199: my $PerformanceData =
200: &Apache::loncoursedata::get_response_data
201: ($Students,$resource->{'symb'},$respid);
202: if (! defined($PerformanceData) ||
203: ref($PerformanceData) ne 'ARRAY' ) {
204: $analysis_html = '<h2>'.
205: &mt('There is no submission data for this resource').
206: '</h2>';
207: $r->print($analysis_html);
208: return;
209: }
210: my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
211: $r->print('Maximum = '.$max.' Minimum = '.$min);
212: my $max_students = 0;
213: my %Data;
214: foreach my $student (@$Students) {
215: my $answer = $student->{'answer'};
216: $Data{$answer}++;
217: if ($max_students < $Data{$answer}) {
218: $max_students = $Data{$answer};
219: }
220: }
221: foreach (5,10,20,25,50,75,100,150,200,250,500,1000,1500,2000,2500,5000) {
222: if ($max_students < $_) {
223: $max_students = $_;
224: last;
225: }
226: }
227: my @Labels = sort {$a <=> $b } keys(%Data);
228: $r->print('number of labels = '.scalar(@Labels));
229: my @PlotData = @Data{@Labels};
230: $r->print('number of PlotData = '.scalar(@PlotData));
231: my $graph =
232: &Apache::loncommon::DrawXYGraph('Correct Answer Distribution',
233: 'Correct Answer',
234: 'Number of students',
235: $max_students,
236: undef,
237: \@Labels,
238: [\@PlotData],
239: (xskip=>10));
240: $r->print($graph);
241: return;
242: }
243:
244: sub GetStudentAnswers {
245: my ($r,$problem,$Students) = @_;
246: my %Answers;
247: my ($resource,$partid,$respid) = ($problem->{'resource'},
248: $problem->{'part'},
249: $problem->{'respid'});
250: # Open progress window
251: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
252: ($r,'Student Answer Compilation Status',
253: 'Student Answer Compilation Progress', scalar(@$Students));
254: $r->print("<table>\n");
255: $r->rflush();
256: foreach my $student (@$Students) {
257: my $sname = $student->{'username'};
258: my $sdom = $student->{'domain'};
259: my $answer = &Apache::lonstathelpers::analyze_problem_as_student
260: ($resource,$sname,$sdom,$partid,$respid);
261: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
262: &mt('last student'));
263: $student->{'answer'} = $answer;
264: }
265: $r->print("</table>\n");
266: $r->rflush();
267: # close progress window
268: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
269: return;
270: }
271:
272: sub build_student_data_worksheet {
273: my ($workbook,$format) = @_;
274: my $rows_output = 3;
275: my $cols_output = 0;
276: my $worksheet = $workbook->addworksheet('Student Data');
277: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
278: my @Headers = ('full name','username','domain','section',
279: "student\nnumber",'identifier');
280: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
281: my @Students = @Apache::lonstatistics::Students;
282: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
283: my %ids;
284: foreach my $row (@$studentrows) {
285: my ($mysqlid,$student) = @$row;
286: $ids{$student}=$mysqlid;
287: }
288: foreach my $student (@Students) {
289: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
290: $worksheet->write_row($rows_output++,0,
291: [$student->{'fullname'},
292: $student->{'username'},$student->{'domain'},
293: $student->{'section'},$student->{'id'},
294: $ids{$name_domain}]);
295: }
296: return $worksheet;
297: }
298:
299: #########################################################
300: #########################################################
301: ##
302: ## Radio Response Routines
303: ##
304: #########################################################
305: #########################################################
306: sub RadioResponseAnalysis {
307: my ($r,$problem,$ProblemData,$Students) = @_;
308: my ($resource,$respid) = ($problem->{'resource'},
309: $problem->{'respid'});
310: my $analysis_html;
311: my $PerformanceData =
312: &Apache::loncoursedata::get_response_data
313: ($Students,$resource->{'symb'},$respid);
314: if (! defined($PerformanceData) ||
315: ref($PerformanceData) ne 'ARRAY' ) {
316: $analysis_html = '<h2>'.
317: &mt('There is no submission data for this resource').
318: '</h2>';
319: $r->print($analysis_html);
320: return;
321: }
322: if (exists($ENV{'form.ExcelOutput'})) {
323: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
324: $PerformanceData,$ProblemData);
325: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
326: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
327: $PerformanceData,$ProblemData);
328: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
329: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
330: $PerformanceData,$ProblemData);
331: } else {
332: $analysis_html .= '<h2>'.
333: &mt('The analysis you have selected is not supported at this time').
334: '</h2>';
335: }
336: $r->print($analysis_html);
337: }
338:
339: sub RR_Excel_output {
340: my ($r,$PerformanceData,$ProblemData) = @_;
341: return '<h1>No!</h1>';
342: }
343:
344: sub RR_Tries_Analysis {
345: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
346: my $analysis_html;
347: my $mintries = 1;
348: my $maxtries = $ENV{'form.NumPlots'};
349: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
350: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
351: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
352: $table = '<h3>'.
353: &mt('Not enough data for concept analysis. '.
354: 'Performing Foil Analysis').
355: '</h3>'.$table;
356: $ENV{'form.AnalyzeAs'} = 'Foils';
357: }
358: $analysis_html .= $table;
359: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
360: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
361: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
362: \@TryData,$ProblemData);
363: # } else {
364: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
365: # $Concepts,
366: # \@TryData,
367: # $ProblemData);
368: # }
369: return $analysis_html;
370: }
371:
372: sub RR_tries_data_analysis {
373: my ($r,$Attempt_data) = @_;
374: my @TryData;
375: foreach my $attempt (@$Attempt_data) {
376: my %Attempt = &hashify_attempt($attempt);
377: my ($answer,undef) = split('=',$Attempt{'submission'});
378: $TryData[$Attempt{'tries'}]->{$answer}++;
379: }
380: return @TryData;
381: }
382:
383: sub RR_Time_Analysis {
384: my ($r,$PerformanceData,$ProblemData) = @_;
385: my $html;
386: return $html;
387: }
388:
389: sub RR_Tries_Foil_Analysis {
390: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
391: my $html;
392: #
393: # Compute the data neccessary to make the plots
394: for (my $try=$min;$try<=$max;$try++) {
395: my @PlotData_Correct;
396: my @PlotData_Incorrect;
397: next if ($try > scalar(@{$TryData}));
398: next if (! defined($TryData->[$try]));
399: my %DataSet = %{$TryData->[$try]};
400: my $total = 0;
401: foreach my $foilid (@$Foils) {
402: $total += $DataSet{$foilid};
403: }
404: foreach my $foilid (@$Foils) {
405: if ($total == 0) {
406: push (@PlotData_Correct,0);
407: push (@PlotData_Incorrect,0);
408: } else {
409: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
410: push (@PlotData_Correct,
411: int(100*$DataSet{$foilid}/$total));
412: push (@PlotData_Incorrect,0);
413: } else {
414: push (@PlotData_Correct,0);
415: push (@PlotData_Incorrect,
416: int(100*$DataSet{$foilid}/$total));
417: }
418: }
419: }
420: my $title='Attempt '.$try;
421: my $xlabel = $total.' Submissions';
422: $html.= &Apache::loncommon::DrawBarGraph($title,
423: $xlabel,
424: 'Percent Choosing',
425: 100,
426: ['#33ff00','#ff3300'],
427: undef,
428: \@PlotData_Correct,
429: \@PlotData_Incorrect);
430: }
431: return $html;
432: }
433:
434: sub RR_Tries_Concept_Analysis {
435: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
436: my $html;
437: return $html;
438: }
439:
440: sub RR_Time_Foil_Analysis {
441: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
442: my $html;
443: return $html;
444: }
445:
446: sub RR_Time_Concept_Analysis {
447: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
448: my $html;
449: return $html;
450: }
451:
452:
453: sub get_Radio_problem_data {
454: my ($url) = @_;
455: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
456: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
457: my %Answer = &Apache::lonnet::str2hash($Answ);
458: my %Partdata;
459: foreach my $part (@{$Answer{'parts'}}) {
460: while (my($key,$value) = each(%Answer)) {
461: # if (ref($value) eq 'ARRAY') {
462: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
463: # } else {
464: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
465: # }
466: next if ($key !~ /^$part/);
467: $key =~ s/^$part\.//;
468: if ($key eq 'foils') {
469: $Partdata{$part}->{'_Foils'}=$value;
470: } elsif ($key eq 'options') {
471: $Partdata{$part}->{'_Options'}=$value;
472: } elsif ($key eq 'shown') {
473: $Partdata{$part}->{'_Shown'}=$value;
474: } elsif ($key =~ /^foil.value.(.*)$/) {
475: $Partdata{$part}->{$1}->{'value'}=$value;
476: } elsif ($key =~ /^foil.text.(.*)$/) {
477: $Partdata{$part}->{$1}->{'text'}=$value;
478: }
479: }
480: }
481: return %Partdata;
482: }
483:
484: #########################################################
485: #########################################################
486: ##
487: ## Option Response Routines
488: ##
489: #########################################################
490: #########################################################
491: sub OptionResponseAnalysis {
492: my ($r,$problem,$ProblemData,$Students) = @_;
493: my ($resource,$respid) = ($problem->{'resource'},
494: $problem->{'respid'});
495: # Note: part data is not needed.
496: my $PerformanceData =
497: &Apache::loncoursedata::get_response_data
498: ($Students,$resource->{'symb'},$respid);
499: if (! defined($PerformanceData) ||
500: ref($PerformanceData) ne 'ARRAY' ) {
501: $r->print('<h2>'.
502: &mt('There is no student data for this problem.').
503: '</h2>');
504: } else {
505: $r->rflush();
506: if (exists($ENV{'form.ExcelOutput'})) {
507: my $result = &OR_excel_sheet($r,$resource,
508: $PerformanceData,
509: $ProblemData);
510: $r->print($result);
511: $r->rflush();
512: } else {
513: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
514: my $analysis_html = &OR_tries_analysis($r,
515: $PerformanceData,
516: $ProblemData);
517: $r->print($analysis_html);
518: $r->rflush();
519: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
520: my $analysis_html = &OR_time_analysis($PerformanceData,
521: $ProblemData);
522: $r->print($analysis_html);
523: $r->rflush();
524: } else {
525: $r->print('<h2>'.
526: &mt('The analysis you have selected is '.
527: 'not supported at this time').
528: '</h2>');
529: }
530: }
531: }
532: }
533:
534: #########################################################
535: #
536: # Option Response: Tries Analysis
537: #
538: #########################################################
539: sub OR_tries_analysis {
540: my ($r,$PerformanceData,$ORdata) = @_;
541: my $mintries = 1;
542: my $maxtries = $ENV{'form.NumPlots'};
543: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
544: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
545: $table = '<h3>'.
546: &mt('Not enough data for concept analysis. '.
547: 'Performing Foil Analysis').
548: '</h3>'.$table;
549: $ENV{'form.AnalyzeAs'} = 'Foils';
550: }
551: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
552: $mintries,$maxtries);
553: my $analysis = '';
554: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
555: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
556: \%ResponseData,$ORdata);
557: } else {
558: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
559: $Concepts,\%ResponseData,$ORdata);
560: }
561: $table .= $analysis;
562: return $table;
563: }
564:
565: sub OR_Tries_Foil_Analysis {
566: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
567: my %ResponseData = %$respdat;
568: #
569: # Compute the data neccessary to make the plots
570: my @PlotData;
571: foreach my $concept (@$Concepts) {
572: foreach my $foilid (@{$concept->{'foils'}}) {
573: for (my $i=$mintries;$i<=$maxtries;$i++) {
574: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
575: push(@{$PlotData[$i]->{'_correct'}},0);
576: } else {
577: push(@{$PlotData[$i]->{'_correct'}},
578: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
579: $ResponseData{$foilid}->[$i]->{'_total'});
580: }
581: foreach my $option (@{$ORdata->{'_Options'}}) {
582: push(@{$PlotData[$i]->{'_total'}},
583: $ResponseData{$foilid}->[$i]->{'_total'});
584: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
585: push (@{$PlotData[$i]->{$option}},0);
586: } else {
587: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
588: $ResponseData{$foilid}->[$i]->{'_correct'}) {
589: push(@{$PlotData[$i]->{$option}},0);
590: } else {
591: push (@{$PlotData[$i]->{$option}},
592: 100 * $ResponseData{$foilid}->[$i]->{$option} /
593: ($ResponseData{$foilid}->[$i]->{'_total'} -
594: $ResponseData{$foilid}->[$i]->{'_correct'}));
595: }
596: }
597: }
598: }
599: }
600: }
601: #
602: # Build a table for the plots
603: my $analysis_html = "<table>\n";
604: my $optionkey = &build_option_index($ORdata);
605: for (my $try=$mintries;$try<=$maxtries;$try++) {
606: my $count = $ResponseData{'_total'}->[$try];
607: if ($count == 0) {
608: $count = 'no submissions';
609: } elsif ($count == 1) {
610: $count = '1 submission';
611: } else {
612: $count = $count.' submissions';
613: }
614: my $title = 'Attempt '.$try.', '.$count;
615: my @Datasets;
616: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
617: next if (! exists($PlotData[$try]->{$option}));
618: push(@Datasets,$PlotData[$try]->{$option});
619: }
620: my $correctgraph = &Apache::loncommon::DrawBarGraph
621: ($title,'Foil Number','Percent Correct',
622: 100,$plotcolors,undef,$Datasets[0]);
623: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
624:
625: #
626: #
627: next if (! defined($Datasets[0]));
628: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
629: $Datasets[0]->[$i]=0;
630: }
631: $count = $ResponseData{'_total'}->[$try] -
632: $ResponseData{'_correct'}->[$try];
633: if ($count == 0) {
634: $count = 'no submissions';
635: } elsif ($count == 1) {
636: $count = '1 submission';
637: } else {
638: $count = $count.' submissions';
639: }
640: $title = 'Attempt '.$try.', '.$count;
641: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
642: ($title,'Foil Number','% Option Chosen Incorrectly',
643: 100,$plotcolors,undef,@Datasets);
644: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
645: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
646: }
647: $analysis_html .= "</table>\n";
648: return $analysis_html;
649: }
650:
651: sub OR_Tries_Concept_Analysis {
652: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
653: my %ResponseData = %$respdat;
654: my $analysis_html = "<table>\n";
655: #
656: # Compute the data neccessary to make the plots
657: my @PlotData;
658: # Concept analysis
659: #
660: # Note: we do not bother with characterizing the students incorrect
661: # answers at the concept level because an incorrect answer for one foil
662: # may be a correct answer for another foil.
663: my %ConceptData;
664: foreach my $concept (@{$Concepts}) {
665: for (my $i=$mintries;$i<=$maxtries;$i++) {
666: #
667: # Gather the per-attempt data
668: my $cdata = $ConceptData{$concept}->[$i];
669: foreach my $foilid (@{$concept->{'foils'}}) {
670: $cdata->{'_correct'} +=
671: $ResponseData{$foilid}->[$i]->{'_correct'};
672: $cdata->{'_total'} +=
673: $ResponseData{$foilid}->[$i]->{'_total'};
674: }
675: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
676: if ($cdata->{'_total'} == 0) {
677: push (@{$PlotData[$i]->{'_correct'}},0);
678: } else {
679: push (@{$PlotData[$i]->{'_correct'}},
680: 100*$cdata->{'_correct'}/$cdata->{'_total'});
681: }
682: }
683: }
684: # Build a table for the plots
685: for (my $i=$mintries;$i<=$maxtries;$i++) {
686: my $minstu = $PlotData[$i]->{'_total'}->[0];
687: my $maxstu = $PlotData[$i]->{'_total'}->[0];
688: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
689: if ($minstu > $count) {
690: $minstu = $count;
691: }
692: if ($maxstu < $count) {
693: $maxstu = $count;
694: }
695: }
696: $maxstu = 0 if (! defined($maxstu));
697: $minstu = 0 if (! defined($minstu));
698: my $title;
699: my $count = $ResponseData{'_total'}->[$i];
700: if ($count == 0) {
701: $count = 'no submissions';
702: } elsif ($count == 1) {
703: $count = '1 submission';
704: } else {
705: $count = $count.' submissions';
706: }
707: $title = 'Attempt '.$i.', '.$count;
708: my $graphlink = &Apache::loncommon::DrawBarGraph
709: ($title,'Concept Number','Percent Correct',
710: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
711: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
712: }
713: $analysis_html .= "</table>\n";
714: return $analysis_html;
715: }
716:
717: sub OR_analyze_by_tries {
718: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
719: my %Trydata;
720: $mintries = 1 if (! defined($mintries) || $mintries < 1);
721: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
722: foreach my $row (@$PerformanceData) {
723: next if (! defined($row));
724: my $tries = &get_tries_from_row($row);
725: my %Row = &Process_OR_Row($row);
726: next if (! %Row);
727: while (my ($foilid,$href) = each(%Row)) {
728: if (! ref($href)) {
729: $Trydata{$foilid}->[$tries] += $href;
730: next;
731: }
732: while (my ($option,$value) = each(%$href)) {
733: $Trydata{$foilid}->[$tries]->{$option}+=$value;
734: }
735: }
736: }
737: return %Trydata;
738: }
739:
740: #########################################################
741: #
742: # Option Response: Time Analysis
743: #
744: #########################################################
745: sub OR_time_analysis {
746: my ($PerformanceData,$ORdata) = @_;
747: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
748: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
749: $table = '<h3>'.
750: &mt('Not enough data for concept analysis. '.
751: 'Performing Foil Analysis').
752: '</h3>'.$table;
753: $ENV{'form.AnalyzeAs'} = 'Foils';
754: }
755: my $num_plots = $ENV{'form.NumPlots'};
756: my $num_data = scalar(@$PerformanceData)-1;
757: my $percent = sprintf('%2f',100/$num_plots);
758: #
759: $table .= "<table>\n";
760: for (my $i=0;$i<$num_plots;$i++) {
761: ##
762: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
763: ('startdate_'.$i);
764: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
765: ('enddate_'.$i);
766: if (! defined($starttime) || ! defined($endtime)) {
767: my $sec_in_day = 86400;
768: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
769: my ($sday,$smon,$syear);
770: (undef,undef,undef,$sday,$smon,$syear) =
771: localtime($last_sub_time - $sec_in_day*$i);
772: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
773: $endtime = $starttime + $sec_in_day;
774: if ($i == ($num_plots -1 )) {
775: $starttime = &get_time_from_row($PerformanceData->[0]);
776: }
777: }
778: my $startdateform = &Apache::lonhtmlcommon::date_setter
779: ('Statistics','startdate_'.$i,$starttime);
780: my $enddateform = &Apache::lonhtmlcommon::date_setter
781: ('Statistics','enddate_'.$i,$endtime);
782: #
783: my $begin_index;
784: my $end_index;
785: my $j;
786: while (++$j < scalar(@$PerformanceData)) {
787: last if (&get_time_from_row($PerformanceData->[$j])
788: > $starttime);
789: }
790: $begin_index = $j;
791: while (++$j < scalar(@$PerformanceData)) {
792: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
793: }
794: $end_index = $j;
795: ##
796: my $interval = {
797: begin_index => $begin_index,
798: end_index => $end_index,
799: startdateform => $startdateform,
800: enddateform => $enddateform,
801: };
802: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
803: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
804: $interval);
805: } else {
806: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
807: $Concepts,$interval);
808: }
809: }
810: #
811: return $table;
812: }
813:
814: sub OR_Foil_Time_Analysis {
815: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
816: my $analysis_html;
817: my $foilkey = &build_option_index($ORdata);
818: my ($begin_index,$end_index) = ($interval->{'begin_index'},
819: $interval->{'end_index'});
820: my %TimeData;
821: #
822: # Compute the number getting the foils correct or incorrects
823: for (my $j=$begin_index;$j<=$end_index;$j++) {
824: my $row = $PerformanceData->[$j];
825: next if (! defined($row));
826: my %Row = &Process_OR_Row($row);
827: while (my ($foilid,$href) = each(%Row)) {
828: if (! ref($href)) {
829: $TimeData{$foilid} += $href;
830: next;
831: }
832: while (my ($option,$value) = each(%$href)) {
833: $TimeData{$foilid}->{$option}+=$value;
834: }
835: }
836: }
837: my @Plotdata;
838: foreach my $foil (@$Foils) {
839: my $total = $TimeData{$foil}->{'_total'};
840: if ($total == 0) {
841: push(@{$Plotdata[0]},0);
842: } else {
843: push(@{$Plotdata[0]},
844: 100 * $TimeData{$foil}->{'_correct'} / $total);
845: }
846: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
847: my $optionidx = 1;
848: foreach my $option (@{$ORdata->{'_Options'}}) {
849: if ($total_incorrect == 0) {
850: push(@{$Plotdata[$optionidx]},0);
851: } else {
852: push(@{$Plotdata[$optionidx]},
853: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
854: }
855: } continue {
856: $optionidx++;
857: }
858: }
859: #
860: # Create the plot
861: my $count = $end_index-$begin_index;
862: my $title;
863: if ($count == 0) {
864: $title = 'no submissions';
865: } elsif ($count == 1) {
866: $title = 'one submission';
867: } else {
868: $title = $count.' submissions';
869: }
870: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
871: 'Foil Number',
872: 'Percent Correct',
873: 100,
874: $plotcolors,
875: undef,
876: $Plotdata[0]);
877: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
878: $Plotdata[0]->[$j]=0;
879: }
880: $count = $end_index-$begin_index-$TimeData{'_correct'};
881: if ($count == 0) {
882: $title = 'no submissions';
883: } elsif ($count == 1) {
884: $title = 'one submission';
885: } else {
886: $title = $count.' submissions';
887: }
888: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
889: 'Foil Number',
890: 'Incorrect Option Choice',
891: 100,
892: $plotcolors,
893: undef,
894: @Plotdata);
895: $analysis_html.='<tr>'.
896: '<td>'.$correctplot.'</td>'.
897: '<td>'.$incorrectplot.'</td>'.
898: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
899: $analysis_html.= '<tr>'.'<td colspan="3">'.
900: '<b>Start Time</b>:'.
901: ' '.$interval->{'startdateform'}.'<br />'.
902: '<b>End Time</b> : '.
903: ' '.$interval->{'enddateform'}.'<br />'.
904: # '<b>Plot Title</b> :'.
905: # (" "x3).$interval->{'titleform'}.
906: '</td>'.
907: "</tr>\n";
908: return $analysis_html;
909: }
910:
911: sub OR_Concept_Time_Analysis {
912: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
913: my $analysis_html;
914: ##
915: ## Determine starttime, endtime, startindex, endindex
916: my ($begin_index,$end_index) = ($interval->{'begin_index'},
917: $interval->{'end_index'});
918: my %TimeData;
919: #
920: # Compute the number getting the foils correct or incorrects
921: for (my $j=$begin_index;$j<=$end_index;$j++) {
922: my $row = $PerformanceData->[$j];
923: next if (! defined($row));
924: my %Row = &Process_OR_Row($row);
925: while (my ($foilid,$href) = each(%Row)) {
926: if (! ref($href)) {
927: $TimeData{$foilid} += $href;
928: next;
929: }
930: while (my ($option,$value) = each(%$href)) {
931: $TimeData{$foilid}->{$option}+=$value;
932: }
933: }
934: }
935: #
936: # Put the data in plottable form
937: my @Plotdata;
938: foreach my $concept (@$Concepts) {
939: my ($total,$correct);
940: foreach my $foil (@{$concept->{'foils'}}) {
941: $total += $TimeData{$foil}->{'_total'};
942: $correct += $TimeData{$foil}->{'_correct'};
943: }
944: if ($total == 0) {
945: push(@Plotdata,0);
946: } else {
947: push(@Plotdata,100 * $correct / $total);
948: }
949: }
950: #
951: # Create the plot
952: my $title = ($end_index - $begin_index).' submissions';
953: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
954: 'Concept Number',
955: 'Percent Correct',
956: 100,
957: $plotcolors,
958: undef,
959: \@Plotdata);
960: $analysis_html.='<tr>'.
961: '<td>'.$correctplot.'</td>'.
962: '<td align="left" valign="top">'.
963: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
964: '<b>End Time</b> : '.
965: ' '.$interval->{'enddateform'}.'<br />'.
966: # '<b>Plot Title</b> :'.(" "x3).
967: # $interval->{'titleform'}.
968: '</td>'.
969: "</tr>\n";
970: return $analysis_html;
971: }
972:
973: #########################################################
974: #########################################################
975: ##
976: ## Excel output
977: ##
978: #########################################################
979: #########################################################
980: sub OR_excel_sheet {
981: my ($r,$resource,$PerformanceData,$ORdata) = @_;
982: my $response = '';
983: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
984: #
985: # Create excel worksheet
986: my $filename = '/prtspool/'.
987: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
988: time.'_'.rand(1000000000).'.xls';
989: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
990: if (! defined($workbook)) {
991: $r->log_error("Error creating excel spreadsheet $filename: $!");
992: $r->print('<p>'.&mt("Unable to create new Excel file. ".
993: "This error has been logged. ".
994: "Please alert your LON-CAPA administrator").
995: '</p>');
996: return undef;
997: }
998: #
999: $workbook->set_tempdir('/home/httpd/perl/tmp');
1000: my $format = &Apache::loncommon::define_excel_formats($workbook);
1001: #
1002: # Create and populate main worksheets
1003: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1004: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1005: my $response_data_sheet = $workbook->addworksheet('Response Data');
1006: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1007: $response_data_sheet) {
1008: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1009: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1010: }
1011: #
1012: my $result;
1013: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1014: $Concepts,$ORdata);
1015: if ($result ne 'okay') {
1016: # Do something useful
1017: }
1018: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1019: $PerformanceData,$Foils,
1020: $ORdata);
1021: if ($result ne 'okay') {
1022: # Do something useful
1023: }
1024: $response_data_sheet->activate();
1025: #
1026: # Close the excel file
1027: $workbook->close();
1028: #
1029: # Write a link to allow them to download it
1030: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1031: '<p><a href="'.$filename.'">'.
1032: &mt('Your Excel spreadsheet.').
1033: '</a></p>'."\n";
1034: return $result;
1035: }
1036:
1037: sub OR_build_problem_data_worksheet {
1038: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1039: my $rows_output = 3;
1040: my $cols_output = 0;
1041: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1042: ##
1043: ##
1044: my @Headers;
1045: if (@$Concepts > 1) {
1046: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1047: 'Foil Name','Foil Text','Correct value');
1048: } else {
1049: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1050: }
1051: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1052: my %Foildata = %{$ORdata->{'_Foils'}};
1053: my $conceptindex = 1;
1054: my $foilindex = 1;
1055: foreach my $concept (@$Concepts) {
1056: my @FoilsInConcept = @{$concept->{'foils'}};
1057: my $firstfoil = shift(@FoilsInConcept);
1058: if (@$Concepts > 1) {
1059: $worksheet->write_row($rows_output++,0,
1060: [$conceptindex,
1061: $concept->{'name'},
1062: $foilindex++,
1063: $Foildata{$firstfoil}->{'name'},
1064: $Foildata{$firstfoil}->{'text'},
1065: $Foildata{$firstfoil}->{'value'},]);
1066: } else {
1067: $worksheet->write_row($rows_output++,0,
1068: [ $foilindex++,
1069: $Foildata{$firstfoil}->{'name'},
1070: $Foildata{$firstfoil}->{'text'},
1071: $Foildata{$firstfoil}->{'value'},]);
1072: }
1073: foreach my $foilid (@FoilsInConcept) {
1074: if (@$Concepts > 1) {
1075: $worksheet->write_row($rows_output++,0,
1076: ['',
1077: '',
1078: $foilindex,
1079: $Foildata{$foilid}->{'name'},
1080: $Foildata{$foilid}->{'text'},
1081: $Foildata{$foilid}->{'value'},]);
1082: } else {
1083: $worksheet->write_row($rows_output++,0,
1084: [$foilindex,
1085: $Foildata{$foilid}->{'name'},
1086: $Foildata{$foilid}->{'text'},
1087: $Foildata{$foilid}->{'value'},]);
1088: }
1089: } continue {
1090: $foilindex++;
1091: }
1092: } continue {
1093: $conceptindex++;
1094: }
1095: $rows_output++;
1096: $rows_output++;
1097: ##
1098: ## Option data output
1099: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1100: foreach my $string (@{$ORdata->{'_Options'}}) {
1101: $worksheet->write($rows_output++,0,$string);
1102: }
1103: return 'okay';
1104: }
1105:
1106: sub OR_build_response_data_worksheet {
1107: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1108: my $rows_output = 3;
1109: my $cols_output = 0;
1110: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1111: $worksheet->set_column(1,1,20);
1112: $worksheet->set_column(2,2,13);
1113: my @Headers = ('identifier','time','award detail','attempt');
1114: foreach my $foil (@$Foils) {
1115: push (@Headers,$foil.' submission');
1116: push (@Headers,$foil.' grading');
1117: }
1118: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1119: #
1120: foreach my $row (@$PerformanceData) {
1121: next if (! defined($row));
1122: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1123: my @Foilgrades = split('&',$grading);
1124: my @Foilsubs = split('&',$submission);
1125: my %ResponseData;
1126: for (my $j=0;$j<=$#Foilgrades;$j++) {
1127: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1128: my (undef,$submission) = split('=',$Foilsubs[$j]);
1129: $submission = &Apache::lonnet::unescape($submission);
1130: $ResponseData{$foilid.' submission'}=$submission;
1131: $ResponseData{$foilid.' award'}=$correct;
1132: }
1133: $worksheet->write($rows_output,$cols_output++,$student);
1134: $worksheet->write($rows_output,$cols_output++,
1135: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1136: $worksheet->write($rows_output,$cols_output++,$award);
1137: $worksheet->write($rows_output,$cols_output++,$tries);
1138: foreach my $foilid (@$Foils) {
1139: $worksheet->write($rows_output,$cols_output++,
1140: $ResponseData{$foilid.' submission'});
1141: $worksheet->write($rows_output,$cols_output++,
1142: $ResponseData{$foilid.' award'});
1143: }
1144: $rows_output++;
1145: $cols_output = 0;
1146: }
1147: return;
1148: }
1149:
1150: sub build_foil_index {
1151: my ($ORdata) = @_;
1152: return if (! exists($ORdata->{'_Foils'}));
1153: my %Foildata = %{$ORdata->{'_Foils'}};
1154: my @Foils = sort(keys(%Foildata));
1155: my %Concepts;
1156: foreach my $foilid (@Foils) {
1157: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1158: $foilid);
1159: }
1160: undef(@Foils);
1161: # Having gathered the concept information in a hash, we now translate it
1162: # into an array because we need to be consistent about order.
1163: # Also put the foils in order, too.
1164: my $sortfunction = sub {
1165: my %Numbers = (one => 1,
1166: two => 2,
1167: three => 3,
1168: four => 4,
1169: five => 5,
1170: six => 6,
1171: seven => 7,
1172: eight => 8,
1173: nine => 9,
1174: ten => 10,);
1175: my $a1 = lc($a);
1176: my $b1 = lc($b);
1177: if (exists($Numbers{$a1})) {
1178: $a1 = $Numbers{$a1};
1179: }
1180: if (exists($Numbers{$b1})) {
1181: $b1 = $Numbers{$b1};
1182: }
1183: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1184: return $a1 <=> $b1;
1185: } else {
1186: return $a1 cmp $b1;
1187: }
1188: };
1189: my @Concepts;
1190: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1191: if (! defined($Concepts{$concept})) {
1192: $Concepts{$concept}=[];
1193: # next;
1194: }
1195: push(@Concepts,{ name => $concept,
1196: foils => [@{$Concepts{$concept}}]});
1197: push(@Foils,(@{$Concepts{$concept}}));
1198: }
1199: #
1200: # Build up the table of row labels.
1201: my $table = '<table border="1" >'."\n";
1202: if (@Concepts > 1) {
1203: $table .= '<tr>'.
1204: '<th>'.&mt('Concept Number').'</th>'.
1205: '<th>'.&mt('Concept').'</th>'.
1206: '<th>'.&mt('Foil Number').'</th>'.
1207: '<th>'.&mt('Foil Name').'</th>'.
1208: '<th>'.&mt('Foil Text').'</th>'.
1209: '<th>'.&mt('Correct Value').'</th>'.
1210: "</tr>\n";
1211: } else {
1212: $table .= '<tr>'.
1213: '<th>'.&mt('Foil Number').'</th>'.
1214: '<th>'.&mt('Foil Name').'</th>'.
1215: '<th>'.&mt('Foil Text').'</th>'.
1216: '<th>'.&mt('Correct Value').'</th>'.
1217: "</tr>\n";
1218: }
1219: my $conceptindex = 1;
1220: my $foilindex = 1;
1221: foreach my $concept (@Concepts) {
1222: my @FoilsInConcept = @{$concept->{'foils'}};
1223: my $firstfoil = shift(@FoilsInConcept);
1224: if (@Concepts > 1) {
1225: $table .= '<tr>'.
1226: '<td>'.$conceptindex.'</td>'.
1227: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1228: '<td>'.$foilindex++.'</td>'.
1229: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1230: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1231: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1232: "</tr>\n";
1233: } else {
1234: $table .= '<tr>'.
1235: '<td>'.$foilindex++.'</td>'.
1236: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1237: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1238: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1239: "</tr>\n";
1240: }
1241: foreach my $foilid (@FoilsInConcept) {
1242: if (@Concepts > 1) {
1243: $table .= '<tr>'.
1244: '<td></td>'.
1245: '<td></td>'.
1246: '<td>'.$foilindex.'</td>'.
1247: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1248: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1249: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1250: "</tr>\n";
1251: } else {
1252: $table .= '<tr>'.
1253: '<td>'.$foilindex.'</td>'.
1254: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1255: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1256: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1257: "</tr>\n";
1258: }
1259: } continue {
1260: $foilindex++;
1261: }
1262: } continue {
1263: $conceptindex++;
1264: }
1265: $table .= "</table>\n";
1266: #
1267: # Build option index with color stuff
1268: return ($table,\@Foils,\@Concepts);
1269: }
1270:
1271: sub build_option_index {
1272: my ($ORdata)= @_;
1273: my $table = "<table>\n";
1274: my $optionindex = 0;
1275: my @Rows;
1276: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1277: push (@Rows,
1278: '<tr>'.
1279: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1280: (' 'x4).'</td>'.
1281: '<td>'.&HTML::Entities::encode($option).'</td>'.
1282: "</tr>\n");
1283: }
1284: shift(@Rows); # Throw away 'correct option chosen' color
1285: $table .= join('',reverse(@Rows));
1286: $table .= "</table>\n";
1287: }
1288:
1289: #########################################################
1290: #########################################################
1291: ##
1292: ## Generic Interface Routines
1293: ##
1294: #########################################################
1295: #########################################################
1296: sub CreateInterface {
1297: ##
1298: ## Environment variable initialization
1299: if (! exists$ENV{'form.AnalyzeOver'}) {
1300: $ENV{'form.AnalyzeOver'} = 'Tries';
1301: }
1302: ##
1303: ## Build the menu
1304: my $Str = '';
1305: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1306: (undef,'Detailed Problem Analysis');
1307: $Str .= '<table cellspacing="5">'."\n";
1308: $Str .= '<tr>';
1309: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1310: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1311: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1312: $Str .= '<td align="center"> </td>';
1313: $Str .= '</tr>'."\n";
1314: ##
1315: ##
1316: $Str .= '<tr><td align="center">'."\n";
1317: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1318: $Str .= '</td>';
1319: #
1320: $Str .= '<td align="center">';
1321: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1322: $Str .= '</td>';
1323: #
1324: # $Str .= '<td align="center">';
1325: my $only_seq_with_assessments = sub {
1326: my $s=shift;
1327: if ($s->{'num_assess'} < 1) {
1328: return 0;
1329: } else {
1330: return 1;
1331: }
1332: };
1333: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1334: $only_seq_with_assessments);
1335: ##
1336: ##
1337: $Str .= '<td>';
1338: { # These braces are here to organize the code, not scope it.
1339: {
1340: $Str .= '<nobr>'.&mt('Analyze Over ');
1341: $Str .= &Apache::loncommon::help_open_topic
1342: ('Analysis_Analyze_Over');
1343: $Str .='<select name="AnalyzeOver" >';
1344: $Str .= '<option value="Tries" ';
1345: if (! exists($ENV{'form.AnalyzeOver'}) ||
1346: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1347: # Default to Tries
1348: $Str .= ' selected ';
1349: }
1350: $Str .= '>'.&mt('Tries').'</option>';
1351: $Str .= '<option value="Time" ';
1352: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1353: $Str .= '>'.&mt('Time').'</option>';
1354: $Str .= '</select>';
1355: $Str .= '</nobr><br />';
1356: }
1357: {
1358: $Str .= '<nobr>'.&mt('Analyze as ');
1359: $Str .= &Apache::loncommon::help_open_topic
1360: ('Analysis_Analyze_as');
1361: $Str .='<select name="AnalyzeAs" >';
1362: $Str .= '<option value="Concepts" ';
1363: if (! exists($ENV{'form.AnalyzeAs'}) ||
1364: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1365: # Default to Concepts
1366: $Str .= ' selected ';
1367: }
1368: $Str .= '>'.&mt('Concepts').'</option>';
1369: $Str .= '<option value="Foils" ';
1370: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1371: $Str .= '>'.&mt('Foils').'</option>';
1372: $Str .= '</select></nobr><br />';
1373: }
1374: {
1375: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1376: $Str .= &Apache::loncommon::help_open_topic
1377: ('Analysis_num_plots');
1378: $Str .= '<select name="NumPlots">';
1379: if (! exists($ENV{'form.NumPlots'})
1380: || $ENV{'form.NumPlots'} < 1
1381: || $ENV{'form.NumPlots'} > 20) {
1382: $ENV{'form.NumPlots'} = 5;
1383: }
1384: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1385: $Str .= '<option value="'.$i.'" ';
1386: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1387: $Str .= '>'.$i.'</option>';
1388: }
1389: $Str .= '</select></nobr>';
1390: }
1391: }
1392: $Str .= '</td>';
1393: ##
1394: ##
1395: $Str .= '</tr>'."\n";
1396: $Str .= '</table>'."\n";
1397: return $Str;
1398: }
1399:
1400: #########################################################
1401: #########################################################
1402: ##
1403: ## Misc Option Response functions
1404: ##
1405: #########################################################
1406: #########################################################
1407: sub get_time_from_row {
1408: my ($row) = @_;
1409: if (ref($row)) {
1410: return $row->[&Apache::loncoursedata::RD_timestamp()];
1411: }
1412: return undef;
1413: }
1414:
1415: sub get_tries_from_row {
1416: my ($row) = @_;
1417: if (ref($row)) {
1418: return $row->[&Apache::loncoursedata::RD_tries()];
1419: }
1420: return undef;
1421: }
1422:
1423: sub hashify_attempt {
1424: my ($row) = @_;
1425: my %attempt;
1426: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1427: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1428: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1429: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1430: return %attempt;
1431: }
1432:
1433: sub Process_OR_Row {
1434: my ($row) = @_;
1435: my %RowData;
1436: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1437: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1438: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1439: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1440: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1441: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1442: return undef if ($award eq 'MISSING_ANSWER');
1443: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1444: $RowData{'_correct'} = 1;
1445: }
1446: $RowData{'_total'} = 1;
1447: my @Foilgrades = split('&',$grading);
1448: my @Foilsubs = split('&',$submission);
1449: for (my $j=0;$j<=$#Foilgrades;$j++) {
1450: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1451: $foilid = &Apache::lonnet::unescape($foilid);
1452: my (undef,$submission) = split('=',$Foilsubs[$j]);
1453: if ($correct) {
1454: $RowData{$foilid}->{'_correct'}++;
1455: } else {
1456: $submission = &Apache::lonnet::unescape($submission);
1457: $RowData{$foilid}->{$submission}++;
1458: }
1459: $RowData{$foilid}->{'_total'}++;
1460: }
1461: return %RowData;
1462: }
1463:
1464: 1;
1465:
1466: __END__
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