1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.72 2004/02/20 16:24:20 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 $problem_types = '(option|radiobutton|numerical)';
103: if (exists($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,$maxtries,$Foils,
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,$maxtries,$Foils,$respdat,$ORdata) = @_;
567: my %ResponseData = %$respdat;
568: #
569: # Compute the data neccessary to make the plots
570: my @PlotData;
571: foreach my $foilid (@$Foils) {
572: for (my $i=$mintries;$i<=$maxtries;$i++) {
573: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
574: push(@{$PlotData[$i]->{'_correct'}},0);
575: } else {
576: push(@{$PlotData[$i]->{'_correct'}},
577: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
578: $ResponseData{$foilid}->[$i]->{'_total'});
579: }
580: foreach my $option (@{$ORdata->{'_Options'}}) {
581: push(@{$PlotData[$i]->{'_total'}},
582: $ResponseData{$foilid}->[$i]->{'_total'});
583: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
584: push (@{$PlotData[$i]->{$option}},0);
585: } else {
586: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
587: $ResponseData{$foilid}->[$i]->{'_correct'}) {
588: push(@{$PlotData[$i]->{$option}},0);
589: } else {
590: push (@{$PlotData[$i]->{$option}},
591: 100 * $ResponseData{$foilid}->[$i]->{$option} /
592: ($ResponseData{$foilid}->[$i]->{'_total'} -
593: $ResponseData{$foilid}->[$i]->{'_correct'}));
594: }
595: }
596: }
597: }
598: }
599: #
600: # Build a table for the plots
601: my $analysis_html = "<table>\n";
602: my $foilkey = &build_option_index($ORdata);
603: for (my $i=$mintries;$i<=$maxtries;$i++) {
604: my $count = $ResponseData{'_total'}->[$i];
605: if ($count == 0) {
606: $count = 'no submissions';
607: } elsif ($count == 1) {
608: $count = '1 submission';
609: } else {
610: $count = $count.' submissions';
611: }
612: my $title = 'Attempt '.$i.', '.$count;
613: my @Datasets;
614: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
615: next if (! exists($PlotData[$i]->{$option}));
616: push(@Datasets,$PlotData[$i]->{$option});
617: }
618: my $correctgraph = &Apache::loncommon::DrawBarGraph
619: ($title,'Foil Number','Percent Correct',
620: 100,$plotcolors,undef,$Datasets[0]);
621: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
622: ##
623: ##
624: next if (! defined($Datasets[0]));
625: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
626: $Datasets[0]->[$i]=0;
627: }
628: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
629: if ($count == 0) {
630: $count = 'no submissions';
631: } elsif ($count == 1) {
632: $count = '1 submission';
633: } else {
634: $count = $count.' submissions';
635: }
636: $title = 'Attempt '.$i.', '.$count;
637: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
638: ($title,'Foil Number','% Option Chosen Incorrectly',
639: 100,$plotcolors,undef,@Datasets);
640: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
641: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
642: }
643: $analysis_html .= "</table>\n";
644: return $analysis_html;
645: }
646:
647: sub OR_Tries_Concept_Analysis {
648: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
649: my %ResponseData = %$respdat;
650: my $analysis_html = "<table>\n";
651: #
652: # Compute the data neccessary to make the plots
653: my @PlotData;
654: # Concept analysis
655: #
656: # Note: we do not bother with characterizing the students incorrect
657: # answers at the concept level because an incorrect answer for one foil
658: # may be a correct answer for another foil.
659: my %ConceptData;
660: foreach my $concept (@{$Concepts}) {
661: for (my $i=$mintries;$i<=$maxtries;$i++) {
662: #
663: # Gather the per-attempt data
664: my $cdata = $ConceptData{$concept}->[$i];
665: foreach my $foilid (@{$concept->{'foils'}}) {
666: $cdata->{'_correct'} +=
667: $ResponseData{$foilid}->[$i]->{'_correct'};
668: $cdata->{'_total'} +=
669: $ResponseData{$foilid}->[$i]->{'_total'};
670: }
671: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
672: if ($cdata->{'_total'} == 0) {
673: push (@{$PlotData[$i]->{'_correct'}},0);
674: } else {
675: push (@{$PlotData[$i]->{'_correct'}},
676: 100*$cdata->{'_correct'}/$cdata->{'_total'});
677: }
678: }
679: }
680: # Build a table for the plots
681: for (my $i=$mintries;$i<=$maxtries;$i++) {
682: my $minstu = $PlotData[$i]->{'_total'}->[0];
683: my $maxstu = $PlotData[$i]->{'_total'}->[0];
684: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
685: if ($minstu > $count) {
686: $minstu = $count;
687: }
688: if ($maxstu < $count) {
689: $maxstu = $count;
690: }
691: }
692: $maxstu = 0 if (! defined($maxstu));
693: $minstu = 0 if (! defined($minstu));
694: my $title;
695: my $count = $ResponseData{'_total'}->[$i];
696: if ($count == 0) {
697: $count = 'no submissions';
698: } elsif ($count == 1) {
699: $count = '1 submission';
700: } else {
701: $count = $count.' submissions';
702: }
703: $title = 'Attempt '.$i.', '.$count;
704: my $graphlink = &Apache::loncommon::DrawBarGraph
705: ($title,'Concept Number','Percent Correct',
706: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
707: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
708: }
709: $analysis_html .= "</table>\n";
710: return $analysis_html;
711: }
712:
713: sub OR_analyze_by_tries {
714: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
715: my %Trydata;
716: $mintries = 1 if (! defined($mintries) || $mintries < 1);
717: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
718: foreach my $row (@$PerformanceData) {
719: next if (! defined($row));
720: my $tries = &get_tries_from_row($row);
721: my %Row = &Process_OR_Row($row);
722: next if (! %Row);
723: while (my ($foilid,$href) = each(%Row)) {
724: if (! ref($href)) {
725: $Trydata{$foilid}->[$tries] += $href;
726: next;
727: }
728: while (my ($option,$value) = each(%$href)) {
729: $Trydata{$foilid}->[$tries]->{$option}+=$value;
730: }
731: }
732: }
733: return %Trydata;
734: }
735:
736: #########################################################
737: #
738: # Option Response: Time Analysis
739: #
740: #########################################################
741: sub OR_time_analysis {
742: my ($PerformanceData,$ORdata) = @_;
743: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
744: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
745: $table = '<h3>'.
746: &mt('Not enough data for concept analysis. '.
747: 'Performing Foil Analysis').
748: '</h3>'.$table;
749: $ENV{'form.AnalyzeAs'} = 'Foils';
750: }
751: my $num_plots = $ENV{'form.NumPlots'};
752: my $num_data = scalar(@$PerformanceData)-1;
753: my $percent = sprintf('%2f',100/$num_plots);
754: #
755: $table .= "<table>\n";
756: for (my $i=0;$i<$num_plots;$i++) {
757: ##
758: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
759: ('startdate_'.$i);
760: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
761: ('enddate_'.$i);
762: if (! defined($starttime) || ! defined($endtime)) {
763: my $sec_in_day = 86400;
764: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
765: my ($sday,$smon,$syear);
766: (undef,undef,undef,$sday,$smon,$syear) =
767: localtime($last_sub_time - $sec_in_day*$i);
768: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
769: $endtime = $starttime + $sec_in_day;
770: if ($i == ($num_plots -1 )) {
771: $starttime = &get_time_from_row($PerformanceData->[0]);
772: }
773: }
774: my $startdateform = &Apache::lonhtmlcommon::date_setter
775: ('Statistics','startdate_'.$i,$starttime);
776: my $enddateform = &Apache::lonhtmlcommon::date_setter
777: ('Statistics','enddate_'.$i,$endtime);
778: #
779: my $begin_index;
780: my $end_index;
781: my $j;
782: while (++$j < scalar(@$PerformanceData)) {
783: last if (&get_time_from_row($PerformanceData->[$j])
784: > $starttime);
785: }
786: $begin_index = $j;
787: while (++$j < scalar(@$PerformanceData)) {
788: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
789: }
790: $end_index = $j;
791: ##
792: my $interval = {
793: begin_index => $begin_index,
794: end_index => $end_index,
795: startdateform => $startdateform,
796: enddateform => $enddateform,
797: };
798: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
799: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
800: $interval);
801: } else {
802: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
803: $Concepts,$interval);
804: }
805: }
806: #
807: return $table;
808: }
809:
810: sub OR_Foil_Time_Analysis {
811: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
812: my $analysis_html;
813: my $foilkey = &build_option_index($ORdata);
814: my ($begin_index,$end_index) = ($interval->{'begin_index'},
815: $interval->{'end_index'});
816: my %TimeData;
817: #
818: # Compute the number getting the foils correct or incorrects
819: for (my $j=$begin_index;$j<=$end_index;$j++) {
820: my $row = $PerformanceData->[$j];
821: next if (! defined($row));
822: my %Row = &Process_OR_Row($row);
823: while (my ($foilid,$href) = each(%Row)) {
824: if (! ref($href)) {
825: $TimeData{$foilid} += $href;
826: next;
827: }
828: while (my ($option,$value) = each(%$href)) {
829: $TimeData{$foilid}->{$option}+=$value;
830: }
831: }
832: }
833: my @Plotdata;
834: foreach my $foil (@$Foils) {
835: my $total = $TimeData{$foil}->{'_total'};
836: if ($total == 0) {
837: push(@{$Plotdata[0]},0);
838: } else {
839: push(@{$Plotdata[0]},
840: 100 * $TimeData{$foil}->{'_correct'} / $total);
841: }
842: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
843: my $optionidx = 1;
844: foreach my $option (@{$ORdata->{'_Options'}}) {
845: if ($total_incorrect == 0) {
846: push(@{$Plotdata[$optionidx]},0);
847: } else {
848: push(@{$Plotdata[$optionidx]},
849: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
850: }
851: } continue {
852: $optionidx++;
853: }
854: }
855: #
856: # Create the plot
857: my $count = $end_index-$begin_index;
858: my $title;
859: if ($count == 0) {
860: $title = 'no submissions';
861: } elsif ($count == 1) {
862: $title = 'one submission';
863: } else {
864: $title = $count.' submissions';
865: }
866: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
867: 'Foil Number',
868: 'Percent Correct',
869: 100,
870: $plotcolors,
871: undef,
872: $Plotdata[0]);
873: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
874: $Plotdata[0]->[$j]=0;
875: }
876: $count = $end_index-$begin_index-$TimeData{'_correct'};
877: if ($count == 0) {
878: $title = 'no submissions';
879: } elsif ($count == 1) {
880: $title = 'one submission';
881: } else {
882: $title = $count.' submissions';
883: }
884: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
885: 'Foil Number',
886: 'Incorrect Option Choice',
887: 100,
888: $plotcolors,
889: undef,
890: @Plotdata);
891: $analysis_html.='<tr>'.
892: '<td>'.$correctplot.'</td>'.
893: '<td>'.$incorrectplot.'</td>'.
894: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
895: $analysis_html.= '<tr>'.'<td colspan="3">'.
896: '<b>Start Time</b>:'.
897: ' '.$interval->{'startdateform'}.'<br />'.
898: '<b>End Time</b> : '.
899: ' '.$interval->{'enddateform'}.'<br />'.
900: # '<b>Plot Title</b> :'.
901: # (" "x3).$interval->{'titleform'}.
902: '</td>'.
903: "</tr>\n";
904: return $analysis_html;
905: }
906:
907: sub OR_Concept_Time_Analysis {
908: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
909: my $analysis_html;
910: ##
911: ## Determine starttime, endtime, startindex, endindex
912: my ($begin_index,$end_index) = ($interval->{'begin_index'},
913: $interval->{'end_index'});
914: my %TimeData;
915: #
916: # Compute the number getting the foils correct or incorrects
917: for (my $j=$begin_index;$j<=$end_index;$j++) {
918: my $row = $PerformanceData->[$j];
919: next if (! defined($row));
920: my %Row = &Process_OR_Row($row);
921: while (my ($foilid,$href) = each(%Row)) {
922: if (! ref($href)) {
923: $TimeData{$foilid} += $href;
924: next;
925: }
926: while (my ($option,$value) = each(%$href)) {
927: $TimeData{$foilid}->{$option}+=$value;
928: }
929: }
930: }
931: #
932: # Put the data in plottable form
933: my @Plotdata;
934: foreach my $concept (@$Concepts) {
935: my ($total,$correct);
936: foreach my $foil (@{$concept->{'foils'}}) {
937: $total += $TimeData{$foil}->{'_total'};
938: $correct += $TimeData{$foil}->{'_correct'};
939: }
940: if ($total == 0) {
941: push(@Plotdata,0);
942: } else {
943: push(@Plotdata,100 * $correct / $total);
944: }
945: }
946: #
947: # Create the plot
948: my $title = ($end_index - $begin_index).' submissions';
949: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
950: 'Concept Number',
951: 'Percent Correct',
952: 100,
953: $plotcolors,
954: undef,
955: \@Plotdata);
956: $analysis_html.='<tr>'.
957: '<td>'.$correctplot.'</td>'.
958: '<td align="left" valign="top">'.
959: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
960: '<b>End Time</b> : '.
961: ' '.$interval->{'enddateform'}.'<br />'.
962: # '<b>Plot Title</b> :'.(" "x3).
963: # $interval->{'titleform'}.
964: '</td>'.
965: "</tr>\n";
966: return $analysis_html;
967: }
968:
969: #########################################################
970: #########################################################
971: ##
972: ## Excel output
973: ##
974: #########################################################
975: #########################################################
976: sub OR_excel_sheet {
977: my ($r,$resource,$PerformanceData,$ORdata) = @_;
978: my $response = '';
979: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
980: #
981: # Create excel worksheet
982: my $filename = '/prtspool/'.
983: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
984: time.'_'.rand(1000000000).'.xls';
985: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
986: if (! defined($workbook)) {
987: $r->log_error("Error creating excel spreadsheet $filename: $!");
988: $r->print('<p>'.&mt("Unable to create new Excel file. ".
989: "This error has been logged. ".
990: "Please alert your LON-CAPA administrator").
991: '</p>');
992: return undef;
993: }
994: #
995: $workbook->set_tempdir('/home/httpd/perl/tmp');
996: my $format = &Apache::loncommon::define_excel_formats($workbook);
997: #
998: # Create and populate main worksheets
999: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1000: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1001: my $response_data_sheet = $workbook->addworksheet('Response Data');
1002: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1003: $response_data_sheet) {
1004: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1005: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1006: }
1007: #
1008: my $result;
1009: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1010: $Concepts,$ORdata);
1011: if ($result ne 'okay') {
1012: # Do something useful
1013: }
1014: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1015: $PerformanceData,$Foils,
1016: $ORdata);
1017: if ($result ne 'okay') {
1018: # Do something useful
1019: }
1020: $response_data_sheet->activate();
1021: #
1022: # Close the excel file
1023: $workbook->close();
1024: #
1025: # Write a link to allow them to download it
1026: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1027: '<p><a href="'.$filename.'">'.
1028: &mt('Your Excel spreadsheet.').
1029: '</a></p>'."\n";
1030: return $result;
1031: }
1032:
1033: sub OR_build_problem_data_worksheet {
1034: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1035: my $rows_output = 3;
1036: my $cols_output = 0;
1037: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1038: ##
1039: ##
1040: my @Headers;
1041: if (@$Concepts > 1) {
1042: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1043: 'Foil Name','Foil Text','Correct value');
1044: } else {
1045: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1046: }
1047: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1048: my %Foildata = %{$ORdata->{'_Foils'}};
1049: my $conceptindex = 1;
1050: my $foilindex = 1;
1051: foreach my $concept (@$Concepts) {
1052: my @FoilsInConcept = @{$concept->{'foils'}};
1053: my $firstfoil = shift(@FoilsInConcept);
1054: if (@$Concepts > 1) {
1055: $worksheet->write_row($rows_output++,0,
1056: [$conceptindex,
1057: $concept->{'name'},
1058: $foilindex++,
1059: $Foildata{$firstfoil}->{'name'},
1060: $Foildata{$firstfoil}->{'text'},
1061: $Foildata{$firstfoil}->{'value'},]);
1062: } else {
1063: $worksheet->write_row($rows_output++,0,
1064: [ $foilindex++,
1065: $Foildata{$firstfoil}->{'name'},
1066: $Foildata{$firstfoil}->{'text'},
1067: $Foildata{$firstfoil}->{'value'},]);
1068: }
1069: foreach my $foilid (@FoilsInConcept) {
1070: if (@$Concepts > 1) {
1071: $worksheet->write_row($rows_output++,0,
1072: ['',
1073: '',
1074: $foilindex,
1075: $Foildata{$foilid}->{'name'},
1076: $Foildata{$foilid}->{'text'},
1077: $Foildata{$foilid}->{'value'},]);
1078: } else {
1079: $worksheet->write_row($rows_output++,0,
1080: [$foilindex,
1081: $Foildata{$foilid}->{'name'},
1082: $Foildata{$foilid}->{'text'},
1083: $Foildata{$foilid}->{'value'},]);
1084: }
1085: } continue {
1086: $foilindex++;
1087: }
1088: } continue {
1089: $conceptindex++;
1090: }
1091: $rows_output++;
1092: $rows_output++;
1093: ##
1094: ## Option data output
1095: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1096: foreach my $string (@{$ORdata->{'_Options'}}) {
1097: $worksheet->write($rows_output++,0,$string);
1098: }
1099: return 'okay';
1100: }
1101:
1102: sub OR_build_response_data_worksheet {
1103: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1104: my $rows_output = 3;
1105: my $cols_output = 0;
1106: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1107: $worksheet->set_column(1,1,20);
1108: $worksheet->set_column(2,2,13);
1109: my @Headers = ('identifier','time','award detail','attempt');
1110: foreach my $foil (@$Foils) {
1111: push (@Headers,$foil.' submission');
1112: push (@Headers,$foil.' grading');
1113: }
1114: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1115: #
1116: foreach my $row (@$PerformanceData) {
1117: next if (! defined($row));
1118: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1119: my @Foilgrades = split('&',$grading);
1120: my @Foilsubs = split('&',$submission);
1121: my %ResponseData;
1122: for (my $j=0;$j<=$#Foilgrades;$j++) {
1123: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1124: my (undef,$submission) = split('=',$Foilsubs[$j]);
1125: $submission = &Apache::lonnet::unescape($submission);
1126: $ResponseData{$foilid.' submission'}=$submission;
1127: $ResponseData{$foilid.' award'}=$correct;
1128: }
1129: $worksheet->write($rows_output,$cols_output++,$student);
1130: $worksheet->write($rows_output,$cols_output++,
1131: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1132: $worksheet->write($rows_output,$cols_output++,$award);
1133: $worksheet->write($rows_output,$cols_output++,$tries);
1134: foreach my $foilid (@$Foils) {
1135: $worksheet->write($rows_output,$cols_output++,
1136: $ResponseData{$foilid.' submission'});
1137: $worksheet->write($rows_output,$cols_output++,
1138: $ResponseData{$foilid.' award'});
1139: }
1140: $rows_output++;
1141: $cols_output = 0;
1142: }
1143: return;
1144: }
1145:
1146: sub build_foil_index {
1147: my ($ORdata) = @_;
1148: return if (! exists($ORdata->{'_Foils'}));
1149: my %Foildata = %{$ORdata->{'_Foils'}};
1150: my @Foils = sort(keys(%Foildata));
1151: my %Concepts;
1152: foreach my $foilid (@Foils) {
1153: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1154: $foilid);
1155: }
1156: undef(@Foils);
1157: # Having gathered the concept information in a hash, we now translate it
1158: # into an array because we need to be consistent about order.
1159: # Also put the foils in order, too.
1160: my $sortfunction = sub {
1161: my %Numbers = (one => 1,
1162: two => 2,
1163: three => 3,
1164: four => 4,
1165: five => 5,
1166: six => 6,
1167: seven => 7,
1168: eight => 8,
1169: nine => 9,
1170: ten => 10,);
1171: my $a1 = lc($a);
1172: my $b1 = lc($b);
1173: if (exists($Numbers{$a1})) {
1174: $a1 = $Numbers{$a1};
1175: }
1176: if (exists($Numbers{$b1})) {
1177: $b1 = $Numbers{$b1};
1178: }
1179: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1180: return $a1 <=> $b1;
1181: } else {
1182: return $a1 cmp $b1;
1183: }
1184: };
1185: my @Concepts;
1186: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1187: if (! defined($Concepts{$concept})) {
1188: $Concepts{$concept}=[];
1189: # next;
1190: }
1191: push(@Concepts,{ name => $concept,
1192: foils => [@{$Concepts{$concept}}]});
1193: push(@Foils,(@{$Concepts{$concept}}));
1194: }
1195: #
1196: # Build up the table of row labels.
1197: my $table = '<table border="1" >'."\n";
1198: if (@Concepts > 1) {
1199: $table .= '<tr>'.
1200: '<th>'.&mt('Concept Number').'</th>'.
1201: '<th>'.&mt('Concept').'</th>'.
1202: '<th>'.&mt('Foil Number').'</th>'.
1203: '<th>'.&mt('Foil Name').'</th>'.
1204: '<th>'.&mt('Foil Text').'</th>'.
1205: '<th>'.&mt('Correct Value').'</th>'.
1206: "</tr>\n";
1207: } else {
1208: $table .= '<tr>'.
1209: '<th>'.&mt('Foil Number').'</th>'.
1210: '<th>'.&mt('Foil Name').'</th>'.
1211: '<th>'.&mt('Foil Text').'</th>'.
1212: '<th>'.&mt('Correct Value').'</th>'.
1213: "</tr>\n";
1214: }
1215: my $conceptindex = 1;
1216: my $foilindex = 1;
1217: foreach my $concept (@Concepts) {
1218: my @FoilsInConcept = @{$concept->{'foils'}};
1219: my $firstfoil = shift(@FoilsInConcept);
1220: if (@Concepts > 1) {
1221: $table .= '<tr>'.
1222: '<td>'.$conceptindex.'</td>'.
1223: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1224: '<td>'.$foilindex++.'</td>'.
1225: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1226: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1227: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1228: "</tr>\n";
1229: } else {
1230: $table .= '<tr>'.
1231: '<td>'.$foilindex++.'</td>'.
1232: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1233: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1234: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1235: "</tr>\n";
1236: }
1237: foreach my $foilid (@FoilsInConcept) {
1238: if (@Concepts > 1) {
1239: $table .= '<tr>'.
1240: '<td></td>'.
1241: '<td></td>'.
1242: '<td>'.$foilindex.'</td>'.
1243: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1244: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1245: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1246: "</tr>\n";
1247: } else {
1248: $table .= '<tr>'.
1249: '<td>'.$foilindex.'</td>'.
1250: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1251: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1252: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1253: "</tr>\n";
1254: }
1255: } continue {
1256: $foilindex++;
1257: }
1258: } continue {
1259: $conceptindex++;
1260: }
1261: $table .= "</table>\n";
1262: #
1263: # Build option index with color stuff
1264: return ($table,\@Foils,\@Concepts);
1265: }
1266:
1267: sub build_option_index {
1268: my ($ORdata)= @_;
1269: my $table = "<table>\n";
1270: my $optionindex = 0;
1271: my @Rows;
1272: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1273: push (@Rows,
1274: '<tr>'.
1275: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1276: (' 'x4).'</td>'.
1277: '<td>'.&HTML::Entities::encode($option).'</td>'.
1278: "</tr>\n");
1279: }
1280: shift(@Rows); # Throw away 'correct option chosen' color
1281: $table .= join('',reverse(@Rows));
1282: $table .= "</table>\n";
1283: }
1284:
1285: #########################################################
1286: #########################################################
1287: ##
1288: ## Generic Interface Routines
1289: ##
1290: #########################################################
1291: #########################################################
1292: sub CreateInterface {
1293: ##
1294: ## Environment variable initialization
1295: if (! exists$ENV{'form.AnalyzeOver'}) {
1296: $ENV{'form.AnalyzeOver'} = 'Tries';
1297: }
1298: ##
1299: ## Build the menu
1300: my $Str = '';
1301: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1302: (undef,'Detailed Problem Analysis');
1303: $Str .= '<table cellspacing="5">'."\n";
1304: $Str .= '<tr>';
1305: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1306: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1307: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1308: $Str .= '<td align="center"> </td>';
1309: $Str .= '</tr>'."\n";
1310: ##
1311: ##
1312: $Str .= '<tr><td align="center">'."\n";
1313: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1314: $Str .= '</td>';
1315: #
1316: $Str .= '<td align="center">';
1317: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1318: $Str .= '</td>';
1319: #
1320: # $Str .= '<td align="center">';
1321: my $only_seq_with_assessments = sub {
1322: my $s=shift;
1323: if ($s->{'num_assess'} < 1) {
1324: return 0;
1325: } else {
1326: return 1;
1327: }
1328: };
1329: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1330: $only_seq_with_assessments);
1331: ##
1332: ##
1333: $Str .= '<td>';
1334: { # These braces are here to organize the code, not scope it.
1335: {
1336: $Str .= '<nobr>'.&mt('Analyze Over ');
1337: $Str .= &Apache::loncommon::help_open_topic
1338: ('Analysis_Analyze_Over');
1339: $Str .='<select name="AnalyzeOver" >';
1340: $Str .= '<option value="Tries" ';
1341: if (! exists($ENV{'form.AnalyzeOver'}) ||
1342: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1343: # Default to Tries
1344: $Str .= ' selected ';
1345: }
1346: $Str .= '>'.&mt('Tries').'</option>';
1347: $Str .= '<option value="Time" ';
1348: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1349: $Str .= '>'.&mt('Time').'</option>';
1350: $Str .= '</select>';
1351: $Str .= '</nobr><br />';
1352: }
1353: {
1354: $Str .= '<nobr>'.&mt('Analyze as ');
1355: $Str .= &Apache::loncommon::help_open_topic
1356: ('Analysis_Analyze_as');
1357: $Str .='<select name="AnalyzeAs" >';
1358: $Str .= '<option value="Concepts" ';
1359: if (! exists($ENV{'form.AnalyzeAs'}) ||
1360: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1361: # Default to Concepts
1362: $Str .= ' selected ';
1363: }
1364: $Str .= '>'.&mt('Concepts').'</option>';
1365: $Str .= '<option value="Foils" ';
1366: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1367: $Str .= '>'.&mt('Foils').'</option>';
1368: $Str .= '</select></nobr><br />';
1369: }
1370: {
1371: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1372: $Str .= &Apache::loncommon::help_open_topic
1373: ('Analysis_num_plots');
1374: $Str .= '<select name="NumPlots">';
1375: if (! exists($ENV{'form.NumPlots'})
1376: || $ENV{'form.NumPlots'} < 1
1377: || $ENV{'form.NumPlots'} > 20) {
1378: $ENV{'form.NumPlots'} = 5;
1379: }
1380: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1381: $Str .= '<option value="'.$i.'" ';
1382: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1383: $Str .= '>'.$i.'</option>';
1384: }
1385: $Str .= '</select></nobr>';
1386: }
1387: }
1388: $Str .= '</td>';
1389: ##
1390: ##
1391: $Str .= '</tr>'."\n";
1392: $Str .= '</table>'."\n";
1393: return $Str;
1394: }
1395:
1396: #########################################################
1397: #########################################################
1398: ##
1399: ## Misc Option Response functions
1400: ##
1401: #########################################################
1402: #########################################################
1403: sub get_time_from_row {
1404: my ($row) = @_;
1405: if (ref($row)) {
1406: return $row->[&Apache::loncoursedata::RD_timestamp()];
1407: }
1408: return undef;
1409: }
1410:
1411: sub get_tries_from_row {
1412: my ($row) = @_;
1413: if (ref($row)) {
1414: return $row->[&Apache::loncoursedata::RD_tries()];
1415: }
1416: return undef;
1417: }
1418:
1419: sub hashify_attempt {
1420: my ($row) = @_;
1421: my %attempt;
1422: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1423: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1424: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1425: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1426: return %attempt;
1427: }
1428:
1429: sub Process_OR_Row {
1430: my ($row) = @_;
1431: my %RowData;
1432: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1433: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1434: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1435: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1436: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1437: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1438: return undef if ($award eq 'MISSING_ANSWER');
1439: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1440: $RowData{'_correct'} = 1;
1441: }
1442: $RowData{'_total'} = 1;
1443: my @Foilgrades = split('&',$grading);
1444: my @Foilsubs = split('&',$submission);
1445: for (my $j=0;$j<=$#Foilgrades;$j++) {
1446: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1447: $foilid = &Apache::lonnet::unescape($foilid);
1448: my (undef,$submission) = split('=',$Foilsubs[$j]);
1449: if ($correct) {
1450: $RowData{$foilid}->{'_correct'}++;
1451: } else {
1452: $submission = &Apache::lonnet::unescape($submission);
1453: $RowData{$foilid}->{$submission}++;
1454: }
1455: $RowData{$foilid}->{'_total'}++;
1456: }
1457: return %RowData;
1458: }
1459:
1460: 1;
1461:
1462: __END__
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