1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.78 2004/03/12 20:29:48 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: my ($resource,$respid) = ($problem->{'resource'},
196: $problem->{'respid'});
197: my $analysis_html;
198: my $PerformanceData =
199: &Apache::loncoursedata::get_response_data
200: ($Students,$resource->{'symb'},$respid);
201: if (! defined($PerformanceData) ||
202: ref($PerformanceData) ne 'ARRAY' ) {
203: $analysis_html = '<h2>'.
204: &mt('There is no submission data for this resource').
205: '</h2>';
206: $r->print($analysis_html);
207: return;
208: }
209: #
210: # This next call causes all the waiting around that people complain about
211: my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
212: #
213: # Collate the data
214: my %Data;
215: foreach my $student (@$Students) {
216: my $answer = $student->{'answer'};
217: $Data{$answer}++;
218: }
219: my @Labels = sort {$a <=> $b } keys(%Data);
220: my @PlotData = @Data{@Labels};
221: #
222: my $width = 500;
223: my $height = 100;
224: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
225: \@Labels,\@PlotData);
226: $r->print($plot);
227: return;
228: }
229:
230: sub one_dimensional_plot {
231: my ($r,$width,$height,$N,$Labels,$Data)=@_;
232: #
233: # Compute data -> image scaling factors
234: my $min = $Labels->[0];
235: my $max = $Labels->[-1];
236: my $h_scale = ($width-10)/($max-$min);
237: #
238: my $max_y = 0;
239: foreach (@$Data) {
240: $max_y = $_ if ($max_y < $_);
241: }
242: my $ticscale = 5;
243: if ($max_y * $ticscale > $height/2) {
244: $ticscale = int($height/2/$max_y);
245: $ticscale = 1 if ($ticscale < 1);
246: }
247: #
248: # Create the plot
249: my $plot =
250: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
251: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
252: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
253: my $top = $height/2-$Data->[$idx]*$ticscale;
254: my $bottom = $height/2+$Data->[$idx]*$ticscale;
255: $plot .=
256: &line($xloc,$top,$xloc,$bottom,'888888',1);
257: }
258: #
259: # Put the scale on last to ensure it is on top of the data.
260: if ($min < 0 && $max > 0) {
261: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
262: my $r = 4;
263: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
264: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
265: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
266: } else {
267: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
268: }
269: $plot .= '</drawimage>';
270: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
271:
272: my $title = 'Distribution of correct answers';
273: my $result = '<table>'.
274: '<tr><td colspan="3" align="center">'.
275: '<font size="+2">'.$title.' (N='.$N.')'.
276: '</font>'.
277: '</td></tr>'.
278: '<tr>'.
279: '<td valign="center">'.$min.'</td>'.
280: '<td>'.$plotresult.'</td>'.
281: '<td valign="center">'.$max.'</td>'.
282: '</tr>'.
283: '<tr><td colspan="3" align="center">'.
284: 'Maximum Number of Coinciding Values: '.$max_y.
285: '</td></tr>'.
286: '</table>';
287: return $result;
288: }
289:
290: ##
291: ## Helper subroutines for <drawimage>.
292: ## These should probably go somewhere more suitable soon.
293: sub line {
294: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
295: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
296: }
297:
298: sub rectangle {
299: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
300: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
301: }
302:
303: sub arc {
304: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
305: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
306: }
307:
308: sub circle {
309: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
310: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
311: }
312:
313: sub GetStudentAnswers {
314: my ($r,$problem,$Students) = @_;
315: my %Answers;
316: my ($resource,$partid,$respid) = ($problem->{'resource'},
317: $problem->{'part'},
318: $problem->{'respid'});
319: # Open progress window
320: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
321: ($r,'Student Answer Compilation Status',
322: 'Student Answer Compilation Progress', scalar(@$Students));
323: $r->print("<table>\n");
324: $r->rflush();
325: foreach my $student (@$Students) {
326: my $sname = $student->{'username'};
327: my $sdom = $student->{'domain'};
328: my $answer = &Apache::lonstathelpers::analyze_problem_as_student
329: ($resource,$sname,$sdom,$partid,$respid);
330: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
331: &mt('last student'));
332: $student->{'answer'} = $answer;
333: }
334: $r->print("</table>\n");
335: $r->rflush();
336: # close progress window
337: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
338: return;
339: }
340:
341: sub build_student_data_worksheet {
342: my ($workbook,$format) = @_;
343: my $rows_output = 3;
344: my $cols_output = 0;
345: my $worksheet = $workbook->addworksheet('Student Data');
346: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
347: my @Headers = ('full name','username','domain','section',
348: "student\nnumber",'identifier');
349: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
350: my @Students = @Apache::lonstatistics::Students;
351: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
352: my %ids;
353: foreach my $row (@$studentrows) {
354: my ($mysqlid,$student) = @$row;
355: $ids{$student}=$mysqlid;
356: }
357: foreach my $student (@Students) {
358: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
359: $worksheet->write_row($rows_output++,0,
360: [$student->{'fullname'},
361: $student->{'username'},$student->{'domain'},
362: $student->{'section'},$student->{'id'},
363: $ids{$name_domain}]);
364: }
365: return $worksheet;
366: }
367:
368: #########################################################
369: #########################################################
370: ##
371: ## Radio Response Routines
372: ##
373: #########################################################
374: #########################################################
375: sub RadioResponseAnalysis {
376: my ($r,$problem,$ProblemData,$Students) = @_;
377: my ($resource,$respid) = ($problem->{'resource'},
378: $problem->{'respid'});
379: my $analysis_html;
380: my $PerformanceData =
381: &Apache::loncoursedata::get_response_data
382: ($Students,$resource->{'symb'},$respid);
383: if (! defined($PerformanceData) ||
384: ref($PerformanceData) ne 'ARRAY' ) {
385: $analysis_html = '<h2>'.
386: &mt('There is no submission data for this resource').
387: '</h2>';
388: $r->print($analysis_html);
389: return;
390: }
391: if (exists($ENV{'form.ExcelOutput'})) {
392: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
393: $PerformanceData,$ProblemData);
394: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
395: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
396: $PerformanceData,$ProblemData);
397: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
398: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
399: $PerformanceData,$ProblemData);
400: } else {
401: $analysis_html .= '<h2>'.
402: &mt('The analysis you have selected is not supported at this time').
403: '</h2>';
404: }
405: $r->print($analysis_html);
406: }
407:
408: sub RR_Excel_output {
409: my ($r,$PerformanceData,$ProblemData) = @_;
410: return '<h1>No!</h1>';
411: }
412:
413: sub RR_Tries_Analysis {
414: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
415: my $analysis_html;
416: my $mintries = 1;
417: my $maxtries = $ENV{'form.NumPlots'};
418: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
419: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
420: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
421: $table = '<h3>'.
422: &mt('Not enough data for concept analysis. '.
423: 'Performing Foil Analysis').
424: '</h3>'.$table;
425: $ENV{'form.AnalyzeAs'} = 'Foils';
426: }
427: $analysis_html .= $table;
428: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
429: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
430: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
431: \@TryData,$ProblemData);
432: # } else {
433: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
434: # $Concepts,
435: # \@TryData,
436: # $ProblemData);
437: # }
438: return $analysis_html;
439: }
440:
441: sub RR_tries_data_analysis {
442: my ($r,$Attempt_data) = @_;
443: my @TryData;
444: foreach my $attempt (@$Attempt_data) {
445: my %Attempt = &hashify_attempt($attempt);
446: my ($answer,undef) = split('=',$Attempt{'submission'});
447: $TryData[$Attempt{'tries'}]->{$answer}++;
448: }
449: return @TryData;
450: }
451:
452: sub RR_Time_Analysis {
453: my ($r,$PerformanceData,$ProblemData) = @_;
454: my $html;
455: return $html;
456: }
457:
458: sub RR_Tries_Foil_Analysis {
459: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
460: my $html;
461: #
462: # Compute the data neccessary to make the plots
463: for (my $try=$min;$try<=$max;$try++) {
464: my @PlotData_Correct;
465: my @PlotData_Incorrect;
466: next if ($try > scalar(@{$TryData}));
467: next if (! defined($TryData->[$try]));
468: my %DataSet = %{$TryData->[$try]};
469: my $total = 0;
470: foreach my $foilid (@$Foils) {
471: $total += $DataSet{$foilid};
472: }
473: foreach my $foilid (@$Foils) {
474: if ($total == 0) {
475: push (@PlotData_Correct,0);
476: push (@PlotData_Incorrect,0);
477: } else {
478: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
479: push (@PlotData_Correct,
480: int(100*$DataSet{$foilid}/$total));
481: push (@PlotData_Incorrect,0);
482: } else {
483: push (@PlotData_Correct,0);
484: push (@PlotData_Incorrect,
485: int(100*$DataSet{$foilid}/$total));
486: }
487: }
488: }
489: my $title='Attempt '.$try;
490: my $xlabel = $total.' Submissions';
491: $html.= &Apache::loncommon::DrawBarGraph($title,
492: $xlabel,
493: 'Percent Choosing',
494: 100,
495: ['#33ff00','#ff3300'],
496: undef,
497: \@PlotData_Correct,
498: \@PlotData_Incorrect);
499: }
500: return $html;
501: }
502:
503: sub RR_Tries_Concept_Analysis {
504: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
505: my $html;
506: return $html;
507: }
508:
509: sub RR_Time_Foil_Analysis {
510: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
511: my $html;
512: return $html;
513: }
514:
515: sub RR_Time_Concept_Analysis {
516: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
517: my $html;
518: return $html;
519: }
520:
521:
522: sub get_Radio_problem_data {
523: my ($url) = @_;
524: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
525: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
526: my %Answer = &Apache::lonnet::str2hash($Answ);
527: my %Partdata;
528: foreach my $part (@{$Answer{'parts'}}) {
529: while (my($key,$value) = each(%Answer)) {
530: # if (ref($value) eq 'ARRAY') {
531: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
532: # } else {
533: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
534: # }
535: next if ($key !~ /^$part/);
536: $key =~ s/^$part\.//;
537: if ($key eq 'foils') {
538: $Partdata{$part}->{'_Foils'}=$value;
539: } elsif ($key eq 'options') {
540: $Partdata{$part}->{'_Options'}=$value;
541: } elsif ($key eq 'shown') {
542: $Partdata{$part}->{'_Shown'}=$value;
543: } elsif ($key =~ /^foil.value.(.*)$/) {
544: $Partdata{$part}->{$1}->{'value'}=$value;
545: } elsif ($key =~ /^foil.text.(.*)$/) {
546: $Partdata{$part}->{$1}->{'text'}=$value;
547: }
548: }
549: }
550: return %Partdata;
551: }
552:
553: #########################################################
554: #########################################################
555: ##
556: ## Option Response Routines
557: ##
558: #########################################################
559: #########################################################
560: sub OptionResponseAnalysis {
561: my ($r,$problem,$ProblemData,$Students) = @_;
562: my ($resource,$respid) = ($problem->{'resource'},
563: $problem->{'respid'});
564: # Note: part data is not needed.
565: my $PerformanceData =
566: &Apache::loncoursedata::get_response_data
567: ($Students,$resource->{'symb'},$respid);
568: if (! defined($PerformanceData) ||
569: ref($PerformanceData) ne 'ARRAY' ) {
570: $r->print('<h2>'.
571: &mt('There is no student data for this problem.').
572: '</h2>');
573: } else {
574: $r->rflush();
575: if (exists($ENV{'form.ExcelOutput'})) {
576: my $result = &OR_excel_sheet($r,$resource,
577: $PerformanceData,
578: $ProblemData);
579: $r->print($result);
580: $r->rflush();
581: } else {
582: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
583: my $analysis_html = &OR_tries_analysis($r,
584: $PerformanceData,
585: $ProblemData);
586: $r->print($analysis_html);
587: $r->rflush();
588: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
589: my $analysis_html = &OR_time_analysis($PerformanceData,
590: $ProblemData);
591: $r->print($analysis_html);
592: $r->rflush();
593: } else {
594: $r->print('<h2>'.
595: &mt('The analysis you have selected is '.
596: 'not supported at this time').
597: '</h2>');
598: }
599: }
600: }
601: }
602:
603: #########################################################
604: #
605: # Option Response: Tries Analysis
606: #
607: #########################################################
608: sub OR_tries_analysis {
609: my ($r,$PerformanceData,$ORdata) = @_;
610: my $mintries = 1;
611: my $maxtries = $ENV{'form.NumPlots'};
612: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
613: if (! defined($Concepts) ||
614: ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
615: $table = '<h3>'.
616: &mt('Not enough data for concept analysis. '.
617: 'Performing Foil Analysis').
618: '</h3>'.$table;
619: $ENV{'form.AnalyzeAs'} = 'Foils';
620: }
621: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
622: $mintries,$maxtries);
623: my $analysis = '';
624: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
625: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
626: \%ResponseData,$ORdata);
627: } else {
628: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
629: $Concepts,\%ResponseData,$ORdata);
630: }
631: $table .= $analysis;
632: return $table;
633: }
634:
635: sub OR_Tries_Foil_Analysis {
636: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
637: my %ResponseData = %$respdat;
638: #
639: # Compute the data neccessary to make the plots
640: my @PlotData;
641: foreach my $concept (@$Concepts) {
642: foreach my $foilid (@{$concept->{'foils'}}) {
643: for (my $try=$mintries;$try<=$maxtries;$try++) {
644: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
645: push(@{$PlotData[$try]->{'_correct'}},0);
646: } else {
647: push(@{$PlotData[$try]->{'_correct'}},
648: 100*$ResponseData{$foilid}->[$try]->{'_correct'}/
649: $ResponseData{$foilid}->[$try]->{'_total'});
650: }
651: foreach my $option (@{$ORdata->{'_Options'}}) {
652: push(@{$PlotData[$try]->{'_total'}},
653: $ResponseData{$foilid}->[$try]->{'_total'});
654: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
655: push (@{$PlotData[$try]->{$option}},0);
656: } else {
657: if ($ResponseData{$foilid}->[$try]->{'_total'} ==
658: $ResponseData{$foilid}->[$try]->{'_correct'}) {
659: push(@{$PlotData[$try]->{$option}},0);
660: } else {
661: push (@{$PlotData[$try]->{$option}},
662: 100 *
663: $ResponseData{$foilid}->[$try]->{$option} /
664: ($ResponseData{$foilid}->[$try]->{'_total'}
665: -
666: $ResponseData{$foilid}->[$try]->{'_correct'}
667: ));
668: }
669: }
670: } # End of foreach my $option
671: }
672: } # End of foreach my $foilid
673: } # End of foreach my $concept
674: #
675: # Build a table for the plots
676: my $analysis_html = "<table>\n";
677: my $optionkey = &build_option_index($ORdata);
678: for (my $try=$mintries;$try<=$maxtries;$try++) {
679: my $count = $ResponseData{'_total'}->[$try];
680: my $title = 'Submission '.$try.' (N='.$count.')';
681: my @Datasets;
682: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
683: next if (! exists($PlotData[$try]->{$option}));
684: push(@Datasets,$PlotData[$try]->{$option});
685: }
686: #
687: # Put a blank in the data set between concepts
688: for (my $set =0;$set<=$#Datasets;$set++) {
689: my @Data = @{$Datasets[$set]};
690: my $idx = 0;
691: foreach my $concept (@{$Concepts}) {
692: foreach my $foilid (@{$concept->{'foils'}}) {
693: $Datasets[$set]->[$idx++]=shift(@Data);
694: }
695: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
696: $Datasets[$set]->[$idx++] = 0;
697: }
698: }
699: }
700: #
701: # Set up the labels needed for the bar graph
702: my @Labels;
703: my $idx = 1;
704: foreach my $concept (@{$Concepts}) {
705: foreach my $foilid (@{$concept->{'foils'}}) {
706: push(@Labels,$idx++);
707: }
708: push(@Labels,'');
709: }
710: #
711: my $correctgraph = &Apache::loncommon::DrawBarGraph
712: ($title,'Foil Number','Percent Correct',
713: 100,$plotcolors,\@Labels,$Datasets[0]);
714: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
715:
716: #
717: #
718: next if (! defined($Datasets[0]));
719: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
720: $Datasets[0]->[$i]=0;
721: }
722: $count = $ResponseData{'_total'}->[$try] -
723: $ResponseData{'_correct'}->[$try];
724: $title = 'Submission '.$try.' (N='.$count.')';
725: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
726: ($title,'Foil Number','% Option Chosen Incorrectly',
727: 100,$plotcolors,\@Labels,@Datasets);
728: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
729: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
730: }
731: $analysis_html .= "</table>\n";
732: return $analysis_html;
733: }
734:
735: sub OR_Tries_Concept_Analysis {
736: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
737: my %ResponseData = %$respdat;
738: my $analysis_html = "<table>\n";
739: #
740: # Compute the data neccessary to make the plots
741: my @PlotData;
742: # Concept analysis
743: #
744: # Note: we do not bother with characterizing the students incorrect
745: # answers at the concept level because an incorrect answer for one foil
746: # may be a correct answer for another foil.
747: my %ConceptData;
748: foreach my $concept (@{$Concepts}) {
749: for (my $i=$mintries;$i<=$maxtries;$i++) {
750: #
751: # Gather the per-attempt data
752: my $cdata = $ConceptData{$concept}->[$i];
753: foreach my $foilid (@{$concept->{'foils'}}) {
754: $cdata->{'_correct'} +=
755: $ResponseData{$foilid}->[$i]->{'_correct'};
756: $cdata->{'_total'} +=
757: $ResponseData{$foilid}->[$i]->{'_total'};
758: }
759: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
760: if ($cdata->{'_total'} == 0) {
761: push (@{$PlotData[$i]->{'_correct'}},0);
762: } else {
763: push (@{$PlotData[$i]->{'_correct'}},
764: 100*$cdata->{'_correct'}/$cdata->{'_total'});
765: }
766: }
767: }
768: # Build a table for the plots
769: for (my $i=$mintries;$i<=$maxtries;$i++) {
770: my $minstu = $PlotData[$i]->{'_total'}->[0];
771: my $maxstu = $PlotData[$i]->{'_total'}->[0];
772: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
773: if ($minstu > $count) {
774: $minstu = $count;
775: }
776: if ($maxstu < $count) {
777: $maxstu = $count;
778: }
779: }
780: $maxstu = 0 if (! defined($maxstu));
781: $minstu = 0 if (! defined($minstu));
782: my $title;
783: my $count = $ResponseData{'_total'}->[$i];
784: if ($count == 0) {
785: $count = 'no submissions';
786: } elsif ($count == 1) {
787: $count = '1 submission';
788: } else {
789: $count = $count.' submissions';
790: }
791: $title = 'Attempt '.$i.', '.$count;
792: my $graphlink = &Apache::loncommon::DrawBarGraph
793: ($title,'Concept Number','Percent Correct',
794: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
795: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
796: }
797: $analysis_html .= "</table>\n";
798: return $analysis_html;
799: }
800:
801: sub OR_analyze_by_tries {
802: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
803: my %Trydata;
804: $mintries = 1 if (! defined($mintries) || $mintries < 1);
805: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
806: foreach my $row (@$PerformanceData) {
807: next if (! defined($row));
808: my $tries = &get_tries_from_row($row);
809: my %Row = &Process_OR_Row($row);
810: next if (! %Row);
811: while (my ($foilid,$href) = each(%Row)) {
812: if (! ref($href)) {
813: $Trydata{$foilid}->[$tries] += $href;
814: next;
815: }
816: while (my ($option,$value) = each(%$href)) {
817: $Trydata{$foilid}->[$tries]->{$option}+=$value;
818: }
819: }
820: }
821: return %Trydata;
822: }
823:
824: #########################################################
825: #
826: # Option Response: Time Analysis
827: #
828: #########################################################
829: sub OR_time_analysis {
830: my ($PerformanceData,$ORdata) = @_;
831: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
832: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
833: $table = '<h3>'.
834: &mt('Not enough data for concept analysis. '.
835: 'Performing Foil Analysis').
836: '</h3>'.$table;
837: $ENV{'form.AnalyzeAs'} = 'Foils';
838: }
839: my $num_plots = $ENV{'form.NumPlots'};
840: my $num_data = scalar(@$PerformanceData)-1;
841: my $percent = sprintf('%2f',100/$num_plots);
842: #
843: $table .= "<table>\n";
844: for (my $i=0;$i<$num_plots;$i++) {
845: ##
846: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
847: ('startdate_'.$i);
848: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
849: ('enddate_'.$i);
850: if (! defined($starttime) || ! defined($endtime)) {
851: my $sec_in_day = 86400;
852: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
853: my ($sday,$smon,$syear);
854: (undef,undef,undef,$sday,$smon,$syear) =
855: localtime($last_sub_time - $sec_in_day*$i);
856: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
857: $endtime = $starttime + $sec_in_day;
858: if ($i == ($num_plots -1 )) {
859: $starttime = &get_time_from_row($PerformanceData->[0]);
860: }
861: }
862: my $startdateform = &Apache::lonhtmlcommon::date_setter
863: ('Statistics','startdate_'.$i,$starttime);
864: my $enddateform = &Apache::lonhtmlcommon::date_setter
865: ('Statistics','enddate_'.$i,$endtime);
866: #
867: my $begin_index;
868: my $end_index;
869: my $j;
870: while (++$j < scalar(@$PerformanceData)) {
871: last if (&get_time_from_row($PerformanceData->[$j])
872: > $starttime);
873: }
874: $begin_index = $j;
875: while (++$j < scalar(@$PerformanceData)) {
876: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
877: }
878: $end_index = $j;
879: ##
880: my $interval = {
881: begin_index => $begin_index,
882: end_index => $end_index,
883: startdateform => $startdateform,
884: enddateform => $enddateform,
885: };
886: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
887: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
888: $interval);
889: } else {
890: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
891: $Concepts,$interval);
892: }
893: }
894: #
895: return $table;
896: }
897:
898: sub OR_Foil_Time_Analysis {
899: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
900: my $analysis_html;
901: my $foilkey = &build_option_index($ORdata);
902: my ($begin_index,$end_index) = ($interval->{'begin_index'},
903: $interval->{'end_index'});
904: my %TimeData;
905: #
906: # Compute the number getting the foils correct or incorrects
907: for (my $j=$begin_index;$j<=$end_index;$j++) {
908: my $row = $PerformanceData->[$j];
909: next if (! defined($row));
910: my %Row = &Process_OR_Row($row);
911: while (my ($foilid,$href) = each(%Row)) {
912: if (! ref($href)) {
913: $TimeData{$foilid} += $href;
914: next;
915: }
916: while (my ($option,$value) = each(%$href)) {
917: $TimeData{$foilid}->{$option}+=$value;
918: }
919: }
920: }
921: my @Plotdata;
922: foreach my $foil (@$Foils) {
923: my $total = $TimeData{$foil}->{'_total'};
924: if ($total == 0) {
925: push(@{$Plotdata[0]},0);
926: } else {
927: push(@{$Plotdata[0]},
928: 100 * $TimeData{$foil}->{'_correct'} / $total);
929: }
930: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
931: my $optionidx = 1;
932: foreach my $option (@{$ORdata->{'_Options'}}) {
933: if ($total_incorrect == 0) {
934: push(@{$Plotdata[$optionidx]},0);
935: } else {
936: push(@{$Plotdata[$optionidx]},
937: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
938: }
939: } continue {
940: $optionidx++;
941: }
942: }
943: #
944: # Create the plot
945: my $count = $end_index-$begin_index;
946: my $title;
947: if ($count == 0) {
948: $title = 'no submissions';
949: } elsif ($count == 1) {
950: $title = 'one submission';
951: } else {
952: $title = $count.' submissions';
953: }
954: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
955: 'Foil Number',
956: 'Percent Correct',
957: 100,
958: $plotcolors,
959: undef,
960: $Plotdata[0]);
961: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
962: $Plotdata[0]->[$j]=0;
963: }
964: $count = $end_index-$begin_index-$TimeData{'_correct'};
965: if ($count == 0) {
966: $title = 'no submissions';
967: } elsif ($count == 1) {
968: $title = 'one submission';
969: } else {
970: $title = $count.' submissions';
971: }
972: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
973: 'Foil Number',
974: 'Incorrect Option Choice',
975: 100,
976: $plotcolors,
977: undef,
978: @Plotdata);
979: $analysis_html.='<tr>'.
980: '<td>'.$correctplot.'</td>'.
981: '<td>'.$incorrectplot.'</td>'.
982: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
983: $analysis_html.= '<tr>'.'<td colspan="3">'.
984: '<b>Start Time</b>:'.
985: ' '.$interval->{'startdateform'}.'<br />'.
986: '<b>End Time</b> : '.
987: ' '.$interval->{'enddateform'}.'<br />'.
988: # '<b>Plot Title</b> :'.
989: # (" "x3).$interval->{'titleform'}.
990: '</td>'.
991: "</tr>\n";
992: return $analysis_html;
993: }
994:
995: sub OR_Concept_Time_Analysis {
996: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
997: my $analysis_html;
998: ##
999: ## Determine starttime, endtime, startindex, endindex
1000: my ($begin_index,$end_index) = ($interval->{'begin_index'},
1001: $interval->{'end_index'});
1002: my %TimeData;
1003: #
1004: # Compute the number getting the foils correct or incorrects
1005: for (my $j=$begin_index;$j<=$end_index;$j++) {
1006: my $row = $PerformanceData->[$j];
1007: next if (! defined($row));
1008: my %Row = &Process_OR_Row($row);
1009: while (my ($foilid,$href) = each(%Row)) {
1010: if (! ref($href)) {
1011: $TimeData{$foilid} += $href;
1012: next;
1013: }
1014: while (my ($option,$value) = each(%$href)) {
1015: $TimeData{$foilid}->{$option}+=$value;
1016: }
1017: }
1018: }
1019: #
1020: # Put the data in plottable form
1021: my @Plotdata;
1022: foreach my $concept (@$Concepts) {
1023: my ($total,$correct);
1024: foreach my $foil (@{$concept->{'foils'}}) {
1025: $total += $TimeData{$foil}->{'_total'};
1026: $correct += $TimeData{$foil}->{'_correct'};
1027: }
1028: if ($total == 0) {
1029: push(@Plotdata,0);
1030: } else {
1031: push(@Plotdata,100 * $correct / $total);
1032: }
1033: }
1034: #
1035: # Create the plot
1036: my $title = ($end_index - $begin_index).' submissions';
1037: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1038: 'Concept Number',
1039: 'Percent Correct',
1040: 100,
1041: $plotcolors,
1042: undef,
1043: \@Plotdata);
1044: $analysis_html.='<tr>'.
1045: '<td>'.$correctplot.'</td>'.
1046: '<td align="left" valign="top">'.
1047: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
1048: '<b>End Time</b> : '.
1049: ' '.$interval->{'enddateform'}.'<br />'.
1050: # '<b>Plot Title</b> :'.(" "x3).
1051: # $interval->{'titleform'}.
1052: '</td>'.
1053: "</tr>\n";
1054: return $analysis_html;
1055: }
1056:
1057: #########################################################
1058: #########################################################
1059: ##
1060: ## Excel output
1061: ##
1062: #########################################################
1063: #########################################################
1064: sub OR_excel_sheet {
1065: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1066: my $response = '';
1067: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1068: #
1069: # Create excel worksheet
1070: my $filename = '/prtspool/'.
1071: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1072: time.'_'.rand(1000000000).'.xls';
1073: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1074: if (! defined($workbook)) {
1075: $r->log_error("Error creating excel spreadsheet $filename: $!");
1076: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1077: "This error has been logged. ".
1078: "Please alert your LON-CAPA administrator").
1079: '</p>');
1080: return undef;
1081: }
1082: #
1083: $workbook->set_tempdir('/home/httpd/perl/tmp');
1084: my $format = &Apache::loncommon::define_excel_formats($workbook);
1085: #
1086: # Create and populate main worksheets
1087: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1088: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1089: my $response_data_sheet = $workbook->addworksheet('Response Data');
1090: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1091: $response_data_sheet) {
1092: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1093: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1094: }
1095: #
1096: my $result;
1097: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1098: $Concepts,$ORdata);
1099: if ($result ne 'okay') {
1100: # Do something useful
1101: }
1102: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1103: $PerformanceData,$Foils,
1104: $ORdata);
1105: if ($result ne 'okay') {
1106: # Do something useful
1107: }
1108: $response_data_sheet->activate();
1109: #
1110: # Close the excel file
1111: $workbook->close();
1112: #
1113: # Write a link to allow them to download it
1114: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1115: '<p><a href="'.$filename.'">'.
1116: &mt('Your Excel spreadsheet.').
1117: '</a></p>'."\n";
1118: return $result;
1119: }
1120:
1121: sub OR_build_problem_data_worksheet {
1122: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1123: my $rows_output = 3;
1124: my $cols_output = 0;
1125: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1126: ##
1127: ##
1128: my @Headers;
1129: if (@$Concepts > 1) {
1130: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1131: 'Foil Name','Foil Text','Correct value');
1132: } else {
1133: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1134: }
1135: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1136: my %Foildata = %{$ORdata->{'_Foils'}};
1137: my $conceptindex = 1;
1138: my $foilindex = 1;
1139: foreach my $concept (@$Concepts) {
1140: my @FoilsInConcept = @{$concept->{'foils'}};
1141: my $firstfoil = shift(@FoilsInConcept);
1142: if (@$Concepts > 1) {
1143: $worksheet->write_row($rows_output++,0,
1144: [$conceptindex,
1145: $concept->{'name'},
1146: $foilindex++,
1147: $Foildata{$firstfoil}->{'name'},
1148: $Foildata{$firstfoil}->{'text'},
1149: $Foildata{$firstfoil}->{'value'},]);
1150: } else {
1151: $worksheet->write_row($rows_output++,0,
1152: [ $foilindex++,
1153: $Foildata{$firstfoil}->{'name'},
1154: $Foildata{$firstfoil}->{'text'},
1155: $Foildata{$firstfoil}->{'value'},]);
1156: }
1157: foreach my $foilid (@FoilsInConcept) {
1158: if (@$Concepts > 1) {
1159: $worksheet->write_row($rows_output++,0,
1160: ['',
1161: '',
1162: $foilindex,
1163: $Foildata{$foilid}->{'name'},
1164: $Foildata{$foilid}->{'text'},
1165: $Foildata{$foilid}->{'value'},]);
1166: } else {
1167: $worksheet->write_row($rows_output++,0,
1168: [$foilindex,
1169: $Foildata{$foilid}->{'name'},
1170: $Foildata{$foilid}->{'text'},
1171: $Foildata{$foilid}->{'value'},]);
1172: }
1173: } continue {
1174: $foilindex++;
1175: }
1176: } continue {
1177: $conceptindex++;
1178: }
1179: $rows_output++;
1180: $rows_output++;
1181: ##
1182: ## Option data output
1183: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1184: foreach my $string (@{$ORdata->{'_Options'}}) {
1185: $worksheet->write($rows_output++,0,$string);
1186: }
1187: return 'okay';
1188: }
1189:
1190: sub OR_build_response_data_worksheet {
1191: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1192: my $rows_output = 3;
1193: my $cols_output = 0;
1194: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1195: $worksheet->set_column(1,1,20);
1196: $worksheet->set_column(2,2,13);
1197: my @Headers = ('identifier','time','award detail','attempt');
1198: foreach my $foil (@$Foils) {
1199: push (@Headers,$foil.' submission');
1200: push (@Headers,$foil.' grading');
1201: }
1202: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1203: #
1204: foreach my $row (@$PerformanceData) {
1205: next if (! defined($row));
1206: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1207: my @Foilgrades = split('&',$grading);
1208: my @Foilsubs = split('&',$submission);
1209: my %ResponseData;
1210: for (my $j=0;$j<=$#Foilgrades;$j++) {
1211: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1212: my (undef,$submission) = split('=',$Foilsubs[$j]);
1213: $submission = &Apache::lonnet::unescape($submission);
1214: $ResponseData{$foilid.' submission'}=$submission;
1215: $ResponseData{$foilid.' award'}=$correct;
1216: }
1217: $worksheet->write($rows_output,$cols_output++,$student);
1218: $worksheet->write($rows_output,$cols_output++,
1219: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1220: $worksheet->write($rows_output,$cols_output++,$award);
1221: $worksheet->write($rows_output,$cols_output++,$tries);
1222: foreach my $foilid (@$Foils) {
1223: $worksheet->write($rows_output,$cols_output++,
1224: $ResponseData{$foilid.' submission'});
1225: $worksheet->write($rows_output,$cols_output++,
1226: $ResponseData{$foilid.' award'});
1227: }
1228: $rows_output++;
1229: $cols_output = 0;
1230: }
1231: return;
1232: }
1233:
1234: sub build_foil_index {
1235: my ($ORdata) = @_;
1236: return if (! exists($ORdata->{'_Foils'}));
1237: my %Foildata = %{$ORdata->{'_Foils'}};
1238: my @Foils = sort(keys(%Foildata));
1239: my %Concepts;
1240: foreach my $foilid (@Foils) {
1241: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1242: $foilid);
1243: }
1244: undef(@Foils);
1245: # Having gathered the concept information in a hash, we now translate it
1246: # into an array because we need to be consistent about order.
1247: # Also put the foils in order, too.
1248: my $sortfunction = sub {
1249: my %Numbers = (one => 1,
1250: two => 2,
1251: three => 3,
1252: four => 4,
1253: five => 5,
1254: six => 6,
1255: seven => 7,
1256: eight => 8,
1257: nine => 9,
1258: ten => 10,);
1259: my $a1 = lc($a);
1260: my $b1 = lc($b);
1261: if (exists($Numbers{$a1})) {
1262: $a1 = $Numbers{$a1};
1263: }
1264: if (exists($Numbers{$b1})) {
1265: $b1 = $Numbers{$b1};
1266: }
1267: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1268: return $a1 <=> $b1;
1269: } else {
1270: return $a1 cmp $b1;
1271: }
1272: };
1273: my @Concepts;
1274: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1275: if (! defined($Concepts{$concept})) {
1276: $Concepts{$concept}=[];
1277: # next;
1278: }
1279: push(@Concepts,{ name => $concept,
1280: foils => [@{$Concepts{$concept}}]});
1281: push(@Foils,(@{$Concepts{$concept}}));
1282: }
1283: #
1284: # Build up the table of row labels.
1285: my $table = '<table border="1" >'."\n";
1286: if (@Concepts > 1) {
1287: $table .= '<tr>'.
1288: '<th>'.&mt('Concept Number').'</th>'.
1289: '<th>'.&mt('Concept').'</th>'.
1290: '<th>'.&mt('Foil Number').'</th>'.
1291: '<th>'.&mt('Foil Name').'</th>'.
1292: '<th>'.&mt('Foil Text').'</th>'.
1293: '<th>'.&mt('Correct Value').'</th>'.
1294: "</tr>\n";
1295: } else {
1296: $table .= '<tr>'.
1297: '<th>'.&mt('Foil Number').'</th>'.
1298: '<th>'.&mt('Foil Name').'</th>'.
1299: '<th>'.&mt('Foil Text').'</th>'.
1300: '<th>'.&mt('Correct Value').'</th>'.
1301: "</tr>\n";
1302: }
1303: my $conceptindex = 1;
1304: my $foilindex = 1;
1305: foreach my $concept (@Concepts) {
1306: my @FoilsInConcept = @{$concept->{'foils'}};
1307: my $firstfoil = shift(@FoilsInConcept);
1308: if (@Concepts > 1) {
1309: $table .= '<tr>'.
1310: '<td>'.$conceptindex.'</td>'.
1311: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1312: '<td>'.$foilindex++.'</td>'.
1313: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1314: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1315: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1316: "</tr>\n";
1317: } else {
1318: $table .= '<tr>'.
1319: '<td>'.$foilindex++.'</td>'.
1320: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1321: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1322: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1323: "</tr>\n";
1324: }
1325: foreach my $foilid (@FoilsInConcept) {
1326: if (@Concepts > 1) {
1327: $table .= '<tr>'.
1328: '<td></td>'.
1329: '<td></td>'.
1330: '<td>'.$foilindex.'</td>'.
1331: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1332: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1333: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1334: "</tr>\n";
1335: } else {
1336: $table .= '<tr>'.
1337: '<td>'.$foilindex.'</td>'.
1338: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1339: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1340: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1341: "</tr>\n";
1342: }
1343: } continue {
1344: $foilindex++;
1345: }
1346: } continue {
1347: $conceptindex++;
1348: }
1349: $table .= "</table>\n";
1350: #
1351: # Build option index with color stuff
1352: return ($table,\@Foils,\@Concepts);
1353: }
1354:
1355: sub build_option_index {
1356: my ($ORdata)= @_;
1357: my $table = "<table>\n";
1358: my $optionindex = 0;
1359: my @Rows;
1360: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1361: push (@Rows,
1362: '<tr>'.
1363: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1364: (' 'x4).'</td>'.
1365: '<td>'.&HTML::Entities::encode($option).'</td>'.
1366: "</tr>\n");
1367: }
1368: shift(@Rows); # Throw away 'correct option chosen' color
1369: $table .= join('',reverse(@Rows));
1370: $table .= "</table>\n";
1371: }
1372:
1373: #########################################################
1374: #########################################################
1375: ##
1376: ## Generic Interface Routines
1377: ##
1378: #########################################################
1379: #########################################################
1380: sub CreateInterface {
1381: ##
1382: ## Environment variable initialization
1383: if (! exists$ENV{'form.AnalyzeOver'}) {
1384: $ENV{'form.AnalyzeOver'} = 'Tries';
1385: }
1386: ##
1387: ## Build the menu
1388: my $Str = '';
1389: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1390: (undef,'Detailed Problem Analysis');
1391: $Str .= '<table cellspacing="5">'."\n";
1392: $Str .= '<tr>';
1393: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1394: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1395: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1396: $Str .= '<td align="center"> </td>';
1397: $Str .= '</tr>'."\n";
1398: ##
1399: ##
1400: $Str .= '<tr><td align="center">'."\n";
1401: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1402: $Str .= '</td>';
1403: #
1404: $Str .= '<td align="center">';
1405: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1406: $Str .= '</td>';
1407: #
1408: # $Str .= '<td align="center">';
1409: my $only_seq_with_assessments = sub {
1410: my $s=shift;
1411: if ($s->{'num_assess'} < 1) {
1412: return 0;
1413: } else {
1414: return 1;
1415: }
1416: };
1417: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1418: $only_seq_with_assessments);
1419: ##
1420: ##
1421: $Str .= '<td>';
1422: { # These braces are here to organize the code, not scope it.
1423: {
1424: $Str .= '<nobr>'.&mt('Analyze Over ');
1425: $Str .= &Apache::loncommon::help_open_topic
1426: ('Analysis_Analyze_Over');
1427: $Str .='<select name="AnalyzeOver" >';
1428: $Str .= '<option value="Tries" ';
1429: if (! exists($ENV{'form.AnalyzeOver'}) ||
1430: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1431: # Default to Tries
1432: $Str .= ' selected ';
1433: }
1434: $Str .= '>'.&mt('Tries').'</option>';
1435: $Str .= '<option value="Time" ';
1436: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1437: $Str .= '>'.&mt('Time').'</option>';
1438: $Str .= '</select>';
1439: $Str .= '</nobr><br />';
1440: }
1441: {
1442: $Str .= '<nobr>'.&mt('Analyze as ');
1443: $Str .= &Apache::loncommon::help_open_topic
1444: ('Analysis_Analyze_as');
1445: $Str .='<select name="AnalyzeAs" >';
1446: $Str .= '<option value="Concepts" ';
1447: if (! exists($ENV{'form.AnalyzeAs'}) ||
1448: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1449: # Default to Concepts
1450: $Str .= ' selected ';
1451: }
1452: $Str .= '>'.&mt('Concepts').'</option>';
1453: $Str .= '<option value="Foils" ';
1454: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1455: $Str .= '>'.&mt('Foils').'</option>';
1456: $Str .= '</select></nobr><br />';
1457: }
1458: {
1459: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1460: $Str .= &Apache::loncommon::help_open_topic
1461: ('Analysis_num_plots');
1462: $Str .= '<select name="NumPlots">';
1463: if (! exists($ENV{'form.NumPlots'})
1464: || $ENV{'form.NumPlots'} < 1
1465: || $ENV{'form.NumPlots'} > 20) {
1466: $ENV{'form.NumPlots'} = 5;
1467: }
1468: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1469: $Str .= '<option value="'.$i.'" ';
1470: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1471: $Str .= '>'.$i.'</option>';
1472: }
1473: $Str .= '</select></nobr>';
1474: }
1475: }
1476: $Str .= '</td>';
1477: ##
1478: ##
1479: $Str .= '</tr>'."\n";
1480: $Str .= '</table>'."\n";
1481: return $Str;
1482: }
1483:
1484: #########################################################
1485: #########################################################
1486: ##
1487: ## Misc Option Response functions
1488: ##
1489: #########################################################
1490: #########################################################
1491: sub get_time_from_row {
1492: my ($row) = @_;
1493: if (ref($row)) {
1494: return $row->[&Apache::loncoursedata::RD_timestamp()];
1495: }
1496: return undef;
1497: }
1498:
1499: sub get_tries_from_row {
1500: my ($row) = @_;
1501: if (ref($row)) {
1502: return $row->[&Apache::loncoursedata::RD_tries()];
1503: }
1504: return undef;
1505: }
1506:
1507: sub hashify_attempt {
1508: my ($row) = @_;
1509: my %attempt;
1510: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1511: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1512: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1513: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1514: return %attempt;
1515: }
1516:
1517: sub Process_OR_Row {
1518: my ($row) = @_;
1519: my %RowData;
1520: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1521: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1522: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1523: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1524: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1525: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1526: return undef if ($award eq 'MISSING_ANSWER');
1527: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1528: $RowData{'_correct'} = 1;
1529: }
1530: $RowData{'_total'} = 1;
1531: my @Foilgrades = split('&',$grading);
1532: my @Foilsubs = split('&',$submission);
1533: for (my $j=0;$j<=$#Foilgrades;$j++) {
1534: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1535: $foilid = &Apache::lonnet::unescape($foilid);
1536: my (undef,$submission) = split('=',$Foilsubs[$j]);
1537: if ($correct) {
1538: $RowData{$foilid}->{'_correct'}++;
1539: } else {
1540: $submission = &Apache::lonnet::unescape($submission);
1541: $RowData{$foilid}->{$submission}++;
1542: }
1543: $RowData{$foilid}->{'_total'}++;
1544: }
1545: return %RowData;
1546: }
1547:
1548: 1;
1549:
1550: __END__
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