1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.79 2004/03/12 21:06:32 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 $c = $r->connection();
196: my ($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: #
211: # This next call causes all the waiting around that people complain about
212: my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
213: return if ($c->aborted());
214: #
215: # Collate the data
216: my %Data;
217: foreach my $student (@$Students) {
218: my $answer = $student->{'answer'};
219: $Data{$answer}++;
220: }
221: my @Labels = sort {$a <=> $b } keys(%Data);
222: my @PlotData = @Data{@Labels};
223: #
224: my $width = 500;
225: my $height = 100;
226: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
227: \@Labels,\@PlotData);
228: $r->print($plot);
229: return;
230: }
231:
232: sub one_dimensional_plot {
233: my ($r,$width,$height,$N,$Labels,$Data)=@_;
234: #
235: # Compute data -> image scaling factors
236: my $min = $Labels->[0];
237: my $max = $Labels->[-1];
238: my $h_scale = ($width-10)/($max-$min);
239: #
240: my $max_y = 0;
241: foreach (@$Data) {
242: $max_y = $_ if ($max_y < $_);
243: }
244: my $ticscale = 5;
245: if ($max_y * $ticscale > $height/2) {
246: $ticscale = int($height/2/$max_y);
247: $ticscale = 1 if ($ticscale < 1);
248: }
249: #
250: # Create the plot
251: my $plot =
252: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
253: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
254: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
255: my $top = $height/2-$Data->[$idx]*$ticscale;
256: my $bottom = $height/2+$Data->[$idx]*$ticscale;
257: $plot .=
258: &line($xloc,$top,$xloc,$bottom,'888888',1);
259: }
260: #
261: # Put the scale on last to ensure it is on top of the data.
262: if ($min < 0 && $max > 0) {
263: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
264: my $r = 4;
265: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
266: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
267: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
268: } else {
269: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
270: }
271: $plot .= '</drawimage>';
272: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
273:
274: my $title = 'Distribution of correct answers';
275: my $result = '<table>'.
276: '<tr><td colspan="3" align="center">'.
277: '<font size="+2">'.$title.' (N='.$N.')'.
278: '</font>'.
279: '</td></tr>'.
280: '<tr>'.
281: '<td valign="center">'.$min.'</td>'.
282: '<td>'.$plotresult.'</td>'.
283: '<td valign="center">'.$max.'</td>'.
284: '</tr>'.
285: '<tr><td colspan="3" align="center">'.
286: 'Maximum Number of Coinciding Values: '.$max_y.
287: '</td></tr>'.
288: '</table>';
289: return $result;
290: }
291:
292: ##
293: ## Helper subroutines for <drawimage>.
294: ## These should probably go somewhere more suitable soon.
295: sub line {
296: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
297: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
298: }
299:
300: sub rectangle {
301: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
302: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
303: }
304:
305: sub arc {
306: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
307: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
308: }
309:
310: sub circle {
311: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
312: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
313: }
314:
315: sub GetStudentAnswers {
316: my ($r,$problem,$Students) = @_;
317: my $c = $r->connection();
318: my %Answers;
319: my ($resource,$partid,$respid) = ($problem->{'resource'},
320: $problem->{'part'},
321: $problem->{'respid'});
322: # Open progress window
323: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
324: ($r,'Student Answer Compilation Status',
325: 'Student Answer Compilation Progress', scalar(@$Students));
326: $r->print("<table>\n");
327: $r->rflush();
328: foreach my $student (@$Students) {
329: last if ($c->aborted());
330: my $sname = $student->{'username'};
331: my $sdom = $student->{'domain'};
332: my $answer = &Apache::lonstathelpers::analyze_problem_as_student
333: ($resource,$sname,$sdom,$partid,$respid);
334: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
335: &mt('last student'));
336: $student->{'answer'} = $answer;
337: }
338: return if ($c->aborted());
339: $r->print("</table>\n");
340: $r->rflush();
341: # close progress window
342: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
343: return;
344: }
345:
346: sub build_student_data_worksheet {
347: my ($workbook,$format) = @_;
348: my $rows_output = 3;
349: my $cols_output = 0;
350: my $worksheet = $workbook->addworksheet('Student Data');
351: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
352: my @Headers = ('full name','username','domain','section',
353: "student\nnumber",'identifier');
354: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
355: my @Students = @Apache::lonstatistics::Students;
356: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
357: my %ids;
358: foreach my $row (@$studentrows) {
359: my ($mysqlid,$student) = @$row;
360: $ids{$student}=$mysqlid;
361: }
362: foreach my $student (@Students) {
363: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
364: $worksheet->write_row($rows_output++,0,
365: [$student->{'fullname'},
366: $student->{'username'},$student->{'domain'},
367: $student->{'section'},$student->{'id'},
368: $ids{$name_domain}]);
369: }
370: return $worksheet;
371: }
372:
373: #########################################################
374: #########################################################
375: ##
376: ## Radio Response Routines
377: ##
378: #########################################################
379: #########################################################
380: sub RadioResponseAnalysis {
381: my ($r,$problem,$ProblemData,$Students) = @_;
382: my ($resource,$respid) = ($problem->{'resource'},
383: $problem->{'respid'});
384: my $analysis_html;
385: my $PerformanceData =
386: &Apache::loncoursedata::get_response_data
387: ($Students,$resource->{'symb'},$respid);
388: if (! defined($PerformanceData) ||
389: ref($PerformanceData) ne 'ARRAY' ) {
390: $analysis_html = '<h2>'.
391: &mt('There is no submission data for this resource').
392: '</h2>';
393: $r->print($analysis_html);
394: return;
395: }
396: if (exists($ENV{'form.ExcelOutput'})) {
397: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
398: $PerformanceData,$ProblemData);
399: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
400: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
401: $PerformanceData,$ProblemData);
402: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
403: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
404: $PerformanceData,$ProblemData);
405: } else {
406: $analysis_html .= '<h2>'.
407: &mt('The analysis you have selected is not supported at this time').
408: '</h2>';
409: }
410: $r->print($analysis_html);
411: }
412:
413: sub RR_Excel_output {
414: my ($r,$PerformanceData,$ProblemData) = @_;
415: return '<h1>No!</h1>';
416: }
417:
418: sub RR_Tries_Analysis {
419: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
420: my $analysis_html;
421: my $mintries = 1;
422: my $maxtries = $ENV{'form.NumPlots'};
423: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
424: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
425: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
426: $table = '<h3>'.
427: &mt('Not enough data for concept analysis. '.
428: 'Performing Foil Analysis').
429: '</h3>'.$table;
430: $ENV{'form.AnalyzeAs'} = 'Foils';
431: }
432: $analysis_html .= $table;
433: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
434: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
435: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
436: \@TryData,$ProblemData);
437: # } else {
438: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
439: # $Concepts,
440: # \@TryData,
441: # $ProblemData);
442: # }
443: return $analysis_html;
444: }
445:
446: sub RR_tries_data_analysis {
447: my ($r,$Attempt_data) = @_;
448: my @TryData;
449: foreach my $attempt (@$Attempt_data) {
450: my %Attempt = &hashify_attempt($attempt);
451: my ($answer,undef) = split('=',$Attempt{'submission'});
452: $TryData[$Attempt{'tries'}]->{$answer}++;
453: }
454: return @TryData;
455: }
456:
457: sub RR_Time_Analysis {
458: my ($r,$PerformanceData,$ProblemData) = @_;
459: my $html;
460: return $html;
461: }
462:
463: sub RR_Tries_Foil_Analysis {
464: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
465: my $html;
466: #
467: # Compute the data neccessary to make the plots
468: for (my $try=$min;$try<=$max;$try++) {
469: my @PlotData_Correct;
470: my @PlotData_Incorrect;
471: next if ($try > scalar(@{$TryData}));
472: next if (! defined($TryData->[$try]));
473: my %DataSet = %{$TryData->[$try]};
474: my $total = 0;
475: foreach my $foilid (@$Foils) {
476: $total += $DataSet{$foilid};
477: }
478: foreach my $foilid (@$Foils) {
479: if ($total == 0) {
480: push (@PlotData_Correct,0);
481: push (@PlotData_Incorrect,0);
482: } else {
483: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
484: push (@PlotData_Correct,
485: int(100*$DataSet{$foilid}/$total));
486: push (@PlotData_Incorrect,0);
487: } else {
488: push (@PlotData_Correct,0);
489: push (@PlotData_Incorrect,
490: int(100*$DataSet{$foilid}/$total));
491: }
492: }
493: }
494: my $title='Attempt '.$try;
495: my $xlabel = $total.' Submissions';
496: $html.= &Apache::loncommon::DrawBarGraph($title,
497: $xlabel,
498: 'Percent Choosing',
499: 100,
500: ['#33ff00','#ff3300'],
501: undef,
502: \@PlotData_Correct,
503: \@PlotData_Incorrect);
504: }
505: return $html;
506: }
507:
508: sub RR_Tries_Concept_Analysis {
509: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
510: my $html;
511: return $html;
512: }
513:
514: sub RR_Time_Foil_Analysis {
515: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
516: my $html;
517: return $html;
518: }
519:
520: sub RR_Time_Concept_Analysis {
521: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
522: my $html;
523: return $html;
524: }
525:
526:
527: sub get_Radio_problem_data {
528: my ($url) = @_;
529: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
530: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
531: my %Answer = &Apache::lonnet::str2hash($Answ);
532: my %Partdata;
533: foreach my $part (@{$Answer{'parts'}}) {
534: while (my($key,$value) = each(%Answer)) {
535: # if (ref($value) eq 'ARRAY') {
536: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
537: # } else {
538: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
539: # }
540: next if ($key !~ /^$part/);
541: $key =~ s/^$part\.//;
542: if ($key eq 'foils') {
543: $Partdata{$part}->{'_Foils'}=$value;
544: } elsif ($key eq 'options') {
545: $Partdata{$part}->{'_Options'}=$value;
546: } elsif ($key eq 'shown') {
547: $Partdata{$part}->{'_Shown'}=$value;
548: } elsif ($key =~ /^foil.value.(.*)$/) {
549: $Partdata{$part}->{$1}->{'value'}=$value;
550: } elsif ($key =~ /^foil.text.(.*)$/) {
551: $Partdata{$part}->{$1}->{'text'}=$value;
552: }
553: }
554: }
555: return %Partdata;
556: }
557:
558: #########################################################
559: #########################################################
560: ##
561: ## Option Response Routines
562: ##
563: #########################################################
564: #########################################################
565: sub OptionResponseAnalysis {
566: my ($r,$problem,$ProblemData,$Students) = @_;
567: my ($resource,$respid) = ($problem->{'resource'},
568: $problem->{'respid'});
569: # Note: part data is not needed.
570: my $PerformanceData =
571: &Apache::loncoursedata::get_response_data
572: ($Students,$resource->{'symb'},$respid);
573: if (! defined($PerformanceData) ||
574: ref($PerformanceData) ne 'ARRAY' ) {
575: $r->print('<h2>'.
576: &mt('There is no student data for this problem.').
577: '</h2>');
578: } else {
579: $r->rflush();
580: if (exists($ENV{'form.ExcelOutput'})) {
581: my $result = &OR_excel_sheet($r,$resource,
582: $PerformanceData,
583: $ProblemData);
584: $r->print($result);
585: $r->rflush();
586: } else {
587: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
588: my $analysis_html = &OR_tries_analysis($r,
589: $PerformanceData,
590: $ProblemData);
591: $r->print($analysis_html);
592: $r->rflush();
593: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
594: my $analysis_html = &OR_time_analysis($PerformanceData,
595: $ProblemData);
596: $r->print($analysis_html);
597: $r->rflush();
598: } else {
599: $r->print('<h2>'.
600: &mt('The analysis you have selected is '.
601: 'not supported at this time').
602: '</h2>');
603: }
604: }
605: }
606: }
607:
608: #########################################################
609: #
610: # Option Response: Tries Analysis
611: #
612: #########################################################
613: sub OR_tries_analysis {
614: my ($r,$PerformanceData,$ORdata) = @_;
615: my $mintries = 1;
616: my $maxtries = $ENV{'form.NumPlots'};
617: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
618: if (! defined($Concepts) ||
619: ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
620: $table = '<h3>'.
621: &mt('Not enough data for concept analysis. '.
622: 'Performing Foil Analysis').
623: '</h3>'.$table;
624: $ENV{'form.AnalyzeAs'} = 'Foils';
625: }
626: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
627: $mintries,$maxtries);
628: my $analysis = '';
629: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
630: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
631: \%ResponseData,$ORdata);
632: } else {
633: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
634: $Concepts,\%ResponseData,$ORdata);
635: }
636: $table .= $analysis;
637: return $table;
638: }
639:
640: sub OR_Tries_Foil_Analysis {
641: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
642: my %ResponseData = %$respdat;
643: #
644: # Compute the data neccessary to make the plots
645: my @PlotData;
646: foreach my $concept (@$Concepts) {
647: foreach my $foilid (@{$concept->{'foils'}}) {
648: for (my $try=$mintries;$try<=$maxtries;$try++) {
649: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
650: push(@{$PlotData[$try]->{'_correct'}},0);
651: } else {
652: push(@{$PlotData[$try]->{'_correct'}},
653: 100*$ResponseData{$foilid}->[$try]->{'_correct'}/
654: $ResponseData{$foilid}->[$try]->{'_total'});
655: }
656: foreach my $option (@{$ORdata->{'_Options'}}) {
657: push(@{$PlotData[$try]->{'_total'}},
658: $ResponseData{$foilid}->[$try]->{'_total'});
659: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
660: push (@{$PlotData[$try]->{$option}},0);
661: } else {
662: if ($ResponseData{$foilid}->[$try]->{'_total'} ==
663: $ResponseData{$foilid}->[$try]->{'_correct'}) {
664: push(@{$PlotData[$try]->{$option}},0);
665: } else {
666: push (@{$PlotData[$try]->{$option}},
667: 100 *
668: $ResponseData{$foilid}->[$try]->{$option} /
669: ($ResponseData{$foilid}->[$try]->{'_total'}
670: -
671: $ResponseData{$foilid}->[$try]->{'_correct'}
672: ));
673: }
674: }
675: } # End of foreach my $option
676: }
677: } # End of foreach my $foilid
678: } # End of foreach my $concept
679: #
680: # Build a table for the plots
681: my $analysis_html = "<table>\n";
682: my $optionkey = &build_option_index($ORdata);
683: for (my $try=$mintries;$try<=$maxtries;$try++) {
684: my $count = $ResponseData{'_total'}->[$try];
685: my $title = 'Submission '.$try.' (N='.$count.')';
686: my @Datasets;
687: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
688: next if (! exists($PlotData[$try]->{$option}));
689: push(@Datasets,$PlotData[$try]->{$option});
690: }
691: #
692: # Put a blank in the data set between concepts
693: for (my $set =0;$set<=$#Datasets;$set++) {
694: my @Data = @{$Datasets[$set]};
695: my $idx = 0;
696: foreach my $concept (@{$Concepts}) {
697: foreach my $foilid (@{$concept->{'foils'}}) {
698: $Datasets[$set]->[$idx++]=shift(@Data);
699: }
700: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
701: $Datasets[$set]->[$idx++] = 0;
702: }
703: }
704: }
705: #
706: # Set up the labels needed for the bar graph
707: my @Labels;
708: my $idx = 1;
709: foreach my $concept (@{$Concepts}) {
710: foreach my $foilid (@{$concept->{'foils'}}) {
711: push(@Labels,$idx++);
712: }
713: push(@Labels,'');
714: }
715: #
716: my $correctgraph = &Apache::loncommon::DrawBarGraph
717: ($title,'Foil Number','Percent Correct',
718: 100,$plotcolors,\@Labels,$Datasets[0]);
719: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
720:
721: #
722: #
723: next if (! defined($Datasets[0]));
724: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
725: $Datasets[0]->[$i]=0;
726: }
727: $count = $ResponseData{'_total'}->[$try] -
728: $ResponseData{'_correct'}->[$try];
729: $title = 'Submission '.$try.' (N='.$count.')';
730: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
731: ($title,'Foil Number','% Option Chosen Incorrectly',
732: 100,$plotcolors,\@Labels,@Datasets);
733: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
734: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
735: }
736: $analysis_html .= "</table>\n";
737: return $analysis_html;
738: }
739:
740: sub OR_Tries_Concept_Analysis {
741: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
742: my %ResponseData = %$respdat;
743: my $analysis_html = "<table>\n";
744: #
745: # Compute the data neccessary to make the plots
746: my @PlotData;
747: # Concept analysis
748: #
749: # Note: we do not bother with characterizing the students incorrect
750: # answers at the concept level because an incorrect answer for one foil
751: # may be a correct answer for another foil.
752: my %ConceptData;
753: foreach my $concept (@{$Concepts}) {
754: for (my $i=$mintries;$i<=$maxtries;$i++) {
755: #
756: # Gather the per-attempt data
757: my $cdata = $ConceptData{$concept}->[$i];
758: foreach my $foilid (@{$concept->{'foils'}}) {
759: $cdata->{'_correct'} +=
760: $ResponseData{$foilid}->[$i]->{'_correct'};
761: $cdata->{'_total'} +=
762: $ResponseData{$foilid}->[$i]->{'_total'};
763: }
764: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
765: if ($cdata->{'_total'} == 0) {
766: push (@{$PlotData[$i]->{'_correct'}},0);
767: } else {
768: push (@{$PlotData[$i]->{'_correct'}},
769: 100*$cdata->{'_correct'}/$cdata->{'_total'});
770: }
771: }
772: }
773: # Build a table for the plots
774: for (my $i=$mintries;$i<=$maxtries;$i++) {
775: my $minstu = $PlotData[$i]->{'_total'}->[0];
776: my $maxstu = $PlotData[$i]->{'_total'}->[0];
777: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
778: if ($minstu > $count) {
779: $minstu = $count;
780: }
781: if ($maxstu < $count) {
782: $maxstu = $count;
783: }
784: }
785: $maxstu = 0 if (! defined($maxstu));
786: $minstu = 0 if (! defined($minstu));
787: my $title;
788: my $count = $ResponseData{'_total'}->[$i];
789: if ($count == 0) {
790: $count = 'no submissions';
791: } elsif ($count == 1) {
792: $count = '1 submission';
793: } else {
794: $count = $count.' submissions';
795: }
796: $title = 'Attempt '.$i.', '.$count;
797: my $graphlink = &Apache::loncommon::DrawBarGraph
798: ($title,'Concept Number','Percent Correct',
799: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
800: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
801: }
802: $analysis_html .= "</table>\n";
803: return $analysis_html;
804: }
805:
806: sub OR_analyze_by_tries {
807: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
808: my %Trydata;
809: $mintries = 1 if (! defined($mintries) || $mintries < 1);
810: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
811: foreach my $row (@$PerformanceData) {
812: next if (! defined($row));
813: my $tries = &get_tries_from_row($row);
814: my %Row = &Process_OR_Row($row);
815: next if (! %Row);
816: while (my ($foilid,$href) = each(%Row)) {
817: if (! ref($href)) {
818: $Trydata{$foilid}->[$tries] += $href;
819: next;
820: }
821: while (my ($option,$value) = each(%$href)) {
822: $Trydata{$foilid}->[$tries]->{$option}+=$value;
823: }
824: }
825: }
826: return %Trydata;
827: }
828:
829: #########################################################
830: #
831: # Option Response: Time Analysis
832: #
833: #########################################################
834: sub OR_time_analysis {
835: my ($PerformanceData,$ORdata) = @_;
836: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
837: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
838: $table = '<h3>'.
839: &mt('Not enough data for concept analysis. '.
840: 'Performing Foil Analysis').
841: '</h3>'.$table;
842: $ENV{'form.AnalyzeAs'} = 'Foils';
843: }
844: my $num_plots = $ENV{'form.NumPlots'};
845: my $num_data = scalar(@$PerformanceData)-1;
846: my $percent = sprintf('%2f',100/$num_plots);
847: #
848: $table .= "<table>\n";
849: for (my $i=0;$i<$num_plots;$i++) {
850: ##
851: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
852: ('startdate_'.$i);
853: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
854: ('enddate_'.$i);
855: if (! defined($starttime) || ! defined($endtime)) {
856: my $sec_in_day = 86400;
857: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
858: my ($sday,$smon,$syear);
859: (undef,undef,undef,$sday,$smon,$syear) =
860: localtime($last_sub_time - $sec_in_day*$i);
861: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
862: $endtime = $starttime + $sec_in_day;
863: if ($i == ($num_plots -1 )) {
864: $starttime = &get_time_from_row($PerformanceData->[0]);
865: }
866: }
867: my $startdateform = &Apache::lonhtmlcommon::date_setter
868: ('Statistics','startdate_'.$i,$starttime);
869: my $enddateform = &Apache::lonhtmlcommon::date_setter
870: ('Statistics','enddate_'.$i,$endtime);
871: #
872: my $begin_index;
873: my $end_index;
874: my $j;
875: while (++$j < scalar(@$PerformanceData)) {
876: last if (&get_time_from_row($PerformanceData->[$j])
877: > $starttime);
878: }
879: $begin_index = $j;
880: while (++$j < scalar(@$PerformanceData)) {
881: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
882: }
883: $end_index = $j;
884: ##
885: my $interval = {
886: begin_index => $begin_index,
887: end_index => $end_index,
888: startdateform => $startdateform,
889: enddateform => $enddateform,
890: };
891: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
892: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
893: $interval);
894: } else {
895: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
896: $Concepts,$interval);
897: }
898: }
899: #
900: return $table;
901: }
902:
903: sub OR_Foil_Time_Analysis {
904: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
905: my $analysis_html;
906: my $foilkey = &build_option_index($ORdata);
907: my ($begin_index,$end_index) = ($interval->{'begin_index'},
908: $interval->{'end_index'});
909: my %TimeData;
910: #
911: # Compute the number getting the foils correct or incorrects
912: for (my $j=$begin_index;$j<=$end_index;$j++) {
913: my $row = $PerformanceData->[$j];
914: next if (! defined($row));
915: my %Row = &Process_OR_Row($row);
916: while (my ($foilid,$href) = each(%Row)) {
917: if (! ref($href)) {
918: $TimeData{$foilid} += $href;
919: next;
920: }
921: while (my ($option,$value) = each(%$href)) {
922: $TimeData{$foilid}->{$option}+=$value;
923: }
924: }
925: }
926: my @Plotdata;
927: foreach my $foil (@$Foils) {
928: my $total = $TimeData{$foil}->{'_total'};
929: if ($total == 0) {
930: push(@{$Plotdata[0]},0);
931: } else {
932: push(@{$Plotdata[0]},
933: 100 * $TimeData{$foil}->{'_correct'} / $total);
934: }
935: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
936: my $optionidx = 1;
937: foreach my $option (@{$ORdata->{'_Options'}}) {
938: if ($total_incorrect == 0) {
939: push(@{$Plotdata[$optionidx]},0);
940: } else {
941: push(@{$Plotdata[$optionidx]},
942: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
943: }
944: } continue {
945: $optionidx++;
946: }
947: }
948: #
949: # Create the plot
950: my $count = $end_index-$begin_index;
951: my $title;
952: if ($count == 0) {
953: $title = 'no submissions';
954: } elsif ($count == 1) {
955: $title = 'one submission';
956: } else {
957: $title = $count.' submissions';
958: }
959: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
960: 'Foil Number',
961: 'Percent Correct',
962: 100,
963: $plotcolors,
964: undef,
965: $Plotdata[0]);
966: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
967: $Plotdata[0]->[$j]=0;
968: }
969: $count = $end_index-$begin_index-$TimeData{'_correct'};
970: if ($count == 0) {
971: $title = 'no submissions';
972: } elsif ($count == 1) {
973: $title = 'one submission';
974: } else {
975: $title = $count.' submissions';
976: }
977: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
978: 'Foil Number',
979: 'Incorrect Option Choice',
980: 100,
981: $plotcolors,
982: undef,
983: @Plotdata);
984: $analysis_html.='<tr>'.
985: '<td>'.$correctplot.'</td>'.
986: '<td>'.$incorrectplot.'</td>'.
987: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
988: $analysis_html.= '<tr>'.'<td colspan="3">'.
989: '<b>Start Time</b>:'.
990: ' '.$interval->{'startdateform'}.'<br />'.
991: '<b>End Time</b> : '.
992: ' '.$interval->{'enddateform'}.'<br />'.
993: # '<b>Plot Title</b> :'.
994: # (" "x3).$interval->{'titleform'}.
995: '</td>'.
996: "</tr>\n";
997: return $analysis_html;
998: }
999:
1000: sub OR_Concept_Time_Analysis {
1001: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
1002: my $analysis_html;
1003: ##
1004: ## Determine starttime, endtime, startindex, endindex
1005: my ($begin_index,$end_index) = ($interval->{'begin_index'},
1006: $interval->{'end_index'});
1007: my %TimeData;
1008: #
1009: # Compute the number getting the foils correct or incorrects
1010: for (my $j=$begin_index;$j<=$end_index;$j++) {
1011: my $row = $PerformanceData->[$j];
1012: next if (! defined($row));
1013: my %Row = &Process_OR_Row($row);
1014: while (my ($foilid,$href) = each(%Row)) {
1015: if (! ref($href)) {
1016: $TimeData{$foilid} += $href;
1017: next;
1018: }
1019: while (my ($option,$value) = each(%$href)) {
1020: $TimeData{$foilid}->{$option}+=$value;
1021: }
1022: }
1023: }
1024: #
1025: # Put the data in plottable form
1026: my @Plotdata;
1027: foreach my $concept (@$Concepts) {
1028: my ($total,$correct);
1029: foreach my $foil (@{$concept->{'foils'}}) {
1030: $total += $TimeData{$foil}->{'_total'};
1031: $correct += $TimeData{$foil}->{'_correct'};
1032: }
1033: if ($total == 0) {
1034: push(@Plotdata,0);
1035: } else {
1036: push(@Plotdata,100 * $correct / $total);
1037: }
1038: }
1039: #
1040: # Create the plot
1041: my $title = ($end_index - $begin_index).' submissions';
1042: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1043: 'Concept Number',
1044: 'Percent Correct',
1045: 100,
1046: $plotcolors,
1047: undef,
1048: \@Plotdata);
1049: $analysis_html.='<tr>'.
1050: '<td>'.$correctplot.'</td>'.
1051: '<td align="left" valign="top">'.
1052: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
1053: '<b>End Time</b> : '.
1054: ' '.$interval->{'enddateform'}.'<br />'.
1055: # '<b>Plot Title</b> :'.(" "x3).
1056: # $interval->{'titleform'}.
1057: '</td>'.
1058: "</tr>\n";
1059: return $analysis_html;
1060: }
1061:
1062: #########################################################
1063: #########################################################
1064: ##
1065: ## Excel output
1066: ##
1067: #########################################################
1068: #########################################################
1069: sub OR_excel_sheet {
1070: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1071: my $response = '';
1072: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1073: #
1074: # Create excel worksheet
1075: my $filename = '/prtspool/'.
1076: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1077: time.'_'.rand(1000000000).'.xls';
1078: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1079: if (! defined($workbook)) {
1080: $r->log_error("Error creating excel spreadsheet $filename: $!");
1081: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1082: "This error has been logged. ".
1083: "Please alert your LON-CAPA administrator").
1084: '</p>');
1085: return undef;
1086: }
1087: #
1088: $workbook->set_tempdir('/home/httpd/perl/tmp');
1089: my $format = &Apache::loncommon::define_excel_formats($workbook);
1090: #
1091: # Create and populate main worksheets
1092: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1093: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1094: my $response_data_sheet = $workbook->addworksheet('Response Data');
1095: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1096: $response_data_sheet) {
1097: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1098: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1099: }
1100: #
1101: my $result;
1102: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1103: $Concepts,$ORdata);
1104: if ($result ne 'okay') {
1105: # Do something useful
1106: }
1107: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1108: $PerformanceData,$Foils,
1109: $ORdata);
1110: if ($result ne 'okay') {
1111: # Do something useful
1112: }
1113: $response_data_sheet->activate();
1114: #
1115: # Close the excel file
1116: $workbook->close();
1117: #
1118: # Write a link to allow them to download it
1119: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1120: '<p><a href="'.$filename.'">'.
1121: &mt('Your Excel spreadsheet.').
1122: '</a></p>'."\n";
1123: return $result;
1124: }
1125:
1126: sub OR_build_problem_data_worksheet {
1127: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1128: my $rows_output = 3;
1129: my $cols_output = 0;
1130: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1131: ##
1132: ##
1133: my @Headers;
1134: if (@$Concepts > 1) {
1135: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1136: 'Foil Name','Foil Text','Correct value');
1137: } else {
1138: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1139: }
1140: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1141: my %Foildata = %{$ORdata->{'_Foils'}};
1142: my $conceptindex = 1;
1143: my $foilindex = 1;
1144: foreach my $concept (@$Concepts) {
1145: my @FoilsInConcept = @{$concept->{'foils'}};
1146: my $firstfoil = shift(@FoilsInConcept);
1147: if (@$Concepts > 1) {
1148: $worksheet->write_row($rows_output++,0,
1149: [$conceptindex,
1150: $concept->{'name'},
1151: $foilindex++,
1152: $Foildata{$firstfoil}->{'name'},
1153: $Foildata{$firstfoil}->{'text'},
1154: $Foildata{$firstfoil}->{'value'},]);
1155: } else {
1156: $worksheet->write_row($rows_output++,0,
1157: [ $foilindex++,
1158: $Foildata{$firstfoil}->{'name'},
1159: $Foildata{$firstfoil}->{'text'},
1160: $Foildata{$firstfoil}->{'value'},]);
1161: }
1162: foreach my $foilid (@FoilsInConcept) {
1163: if (@$Concepts > 1) {
1164: $worksheet->write_row($rows_output++,0,
1165: ['',
1166: '',
1167: $foilindex,
1168: $Foildata{$foilid}->{'name'},
1169: $Foildata{$foilid}->{'text'},
1170: $Foildata{$foilid}->{'value'},]);
1171: } else {
1172: $worksheet->write_row($rows_output++,0,
1173: [$foilindex,
1174: $Foildata{$foilid}->{'name'},
1175: $Foildata{$foilid}->{'text'},
1176: $Foildata{$foilid}->{'value'},]);
1177: }
1178: } continue {
1179: $foilindex++;
1180: }
1181: } continue {
1182: $conceptindex++;
1183: }
1184: $rows_output++;
1185: $rows_output++;
1186: ##
1187: ## Option data output
1188: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1189: foreach my $string (@{$ORdata->{'_Options'}}) {
1190: $worksheet->write($rows_output++,0,$string);
1191: }
1192: return 'okay';
1193: }
1194:
1195: sub OR_build_response_data_worksheet {
1196: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1197: my $rows_output = 3;
1198: my $cols_output = 0;
1199: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1200: $worksheet->set_column(1,1,20);
1201: $worksheet->set_column(2,2,13);
1202: my @Headers = ('identifier','time','award detail','attempt');
1203: foreach my $foil (@$Foils) {
1204: push (@Headers,$foil.' submission');
1205: push (@Headers,$foil.' grading');
1206: }
1207: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1208: #
1209: foreach my $row (@$PerformanceData) {
1210: next if (! defined($row));
1211: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1212: my @Foilgrades = split('&',$grading);
1213: my @Foilsubs = split('&',$submission);
1214: my %ResponseData;
1215: for (my $j=0;$j<=$#Foilgrades;$j++) {
1216: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1217: my (undef,$submission) = split('=',$Foilsubs[$j]);
1218: $submission = &Apache::lonnet::unescape($submission);
1219: $ResponseData{$foilid.' submission'}=$submission;
1220: $ResponseData{$foilid.' award'}=$correct;
1221: }
1222: $worksheet->write($rows_output,$cols_output++,$student);
1223: $worksheet->write($rows_output,$cols_output++,
1224: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1225: $worksheet->write($rows_output,$cols_output++,$award);
1226: $worksheet->write($rows_output,$cols_output++,$tries);
1227: foreach my $foilid (@$Foils) {
1228: $worksheet->write($rows_output,$cols_output++,
1229: $ResponseData{$foilid.' submission'});
1230: $worksheet->write($rows_output,$cols_output++,
1231: $ResponseData{$foilid.' award'});
1232: }
1233: $rows_output++;
1234: $cols_output = 0;
1235: }
1236: return;
1237: }
1238:
1239: sub build_foil_index {
1240: my ($ORdata) = @_;
1241: return if (! exists($ORdata->{'_Foils'}));
1242: my %Foildata = %{$ORdata->{'_Foils'}};
1243: my @Foils = sort(keys(%Foildata));
1244: my %Concepts;
1245: foreach my $foilid (@Foils) {
1246: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1247: $foilid);
1248: }
1249: undef(@Foils);
1250: # Having gathered the concept information in a hash, we now translate it
1251: # into an array because we need to be consistent about order.
1252: # Also put the foils in order, too.
1253: my $sortfunction = sub {
1254: my %Numbers = (one => 1,
1255: two => 2,
1256: three => 3,
1257: four => 4,
1258: five => 5,
1259: six => 6,
1260: seven => 7,
1261: eight => 8,
1262: nine => 9,
1263: ten => 10,);
1264: my $a1 = lc($a);
1265: my $b1 = lc($b);
1266: if (exists($Numbers{$a1})) {
1267: $a1 = $Numbers{$a1};
1268: }
1269: if (exists($Numbers{$b1})) {
1270: $b1 = $Numbers{$b1};
1271: }
1272: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1273: return $a1 <=> $b1;
1274: } else {
1275: return $a1 cmp $b1;
1276: }
1277: };
1278: my @Concepts;
1279: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1280: if (! defined($Concepts{$concept})) {
1281: $Concepts{$concept}=[];
1282: # next;
1283: }
1284: push(@Concepts,{ name => $concept,
1285: foils => [@{$Concepts{$concept}}]});
1286: push(@Foils,(@{$Concepts{$concept}}));
1287: }
1288: #
1289: # Build up the table of row labels.
1290: my $table = '<table border="1" >'."\n";
1291: if (@Concepts > 1) {
1292: $table .= '<tr>'.
1293: '<th>'.&mt('Concept Number').'</th>'.
1294: '<th>'.&mt('Concept').'</th>'.
1295: '<th>'.&mt('Foil Number').'</th>'.
1296: '<th>'.&mt('Foil Name').'</th>'.
1297: '<th>'.&mt('Foil Text').'</th>'.
1298: '<th>'.&mt('Correct Value').'</th>'.
1299: "</tr>\n";
1300: } else {
1301: $table .= '<tr>'.
1302: '<th>'.&mt('Foil Number').'</th>'.
1303: '<th>'.&mt('Foil Name').'</th>'.
1304: '<th>'.&mt('Foil Text').'</th>'.
1305: '<th>'.&mt('Correct Value').'</th>'.
1306: "</tr>\n";
1307: }
1308: my $conceptindex = 1;
1309: my $foilindex = 1;
1310: foreach my $concept (@Concepts) {
1311: my @FoilsInConcept = @{$concept->{'foils'}};
1312: my $firstfoil = shift(@FoilsInConcept);
1313: if (@Concepts > 1) {
1314: $table .= '<tr>'.
1315: '<td>'.$conceptindex.'</td>'.
1316: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1317: '<td>'.$foilindex++.'</td>'.
1318: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1319: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1320: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1321: "</tr>\n";
1322: } else {
1323: $table .= '<tr>'.
1324: '<td>'.$foilindex++.'</td>'.
1325: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1326: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1327: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1328: "</tr>\n";
1329: }
1330: foreach my $foilid (@FoilsInConcept) {
1331: if (@Concepts > 1) {
1332: $table .= '<tr>'.
1333: '<td></td>'.
1334: '<td></td>'.
1335: '<td>'.$foilindex.'</td>'.
1336: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1337: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1338: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1339: "</tr>\n";
1340: } else {
1341: $table .= '<tr>'.
1342: '<td>'.$foilindex.'</td>'.
1343: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1344: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1345: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1346: "</tr>\n";
1347: }
1348: } continue {
1349: $foilindex++;
1350: }
1351: } continue {
1352: $conceptindex++;
1353: }
1354: $table .= "</table>\n";
1355: #
1356: # Build option index with color stuff
1357: return ($table,\@Foils,\@Concepts);
1358: }
1359:
1360: sub build_option_index {
1361: my ($ORdata)= @_;
1362: my $table = "<table>\n";
1363: my $optionindex = 0;
1364: my @Rows;
1365: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1366: push (@Rows,
1367: '<tr>'.
1368: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1369: (' 'x4).'</td>'.
1370: '<td>'.&HTML::Entities::encode($option).'</td>'.
1371: "</tr>\n");
1372: }
1373: shift(@Rows); # Throw away 'correct option chosen' color
1374: $table .= join('',reverse(@Rows));
1375: $table .= "</table>\n";
1376: }
1377:
1378: #########################################################
1379: #########################################################
1380: ##
1381: ## Generic Interface Routines
1382: ##
1383: #########################################################
1384: #########################################################
1385: sub CreateInterface {
1386: ##
1387: ## Environment variable initialization
1388: if (! exists$ENV{'form.AnalyzeOver'}) {
1389: $ENV{'form.AnalyzeOver'} = 'Tries';
1390: }
1391: ##
1392: ## Build the menu
1393: my $Str = '';
1394: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1395: (undef,'Detailed Problem Analysis');
1396: $Str .= '<table cellspacing="5">'."\n";
1397: $Str .= '<tr>';
1398: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1399: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1400: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1401: $Str .= '<td align="center"> </td>';
1402: $Str .= '</tr>'."\n";
1403: ##
1404: ##
1405: $Str .= '<tr><td align="center">'."\n";
1406: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1407: $Str .= '</td>';
1408: #
1409: $Str .= '<td align="center">';
1410: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1411: $Str .= '</td>';
1412: #
1413: # $Str .= '<td align="center">';
1414: my $only_seq_with_assessments = sub {
1415: my $s=shift;
1416: if ($s->{'num_assess'} < 1) {
1417: return 0;
1418: } else {
1419: return 1;
1420: }
1421: };
1422: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1423: $only_seq_with_assessments);
1424: ##
1425: ##
1426: $Str .= '<td>';
1427: { # These braces are here to organize the code, not scope it.
1428: {
1429: $Str .= '<nobr>'.&mt('Analyze Over ');
1430: $Str .= &Apache::loncommon::help_open_topic
1431: ('Analysis_Analyze_Over');
1432: $Str .='<select name="AnalyzeOver" >';
1433: $Str .= '<option value="Tries" ';
1434: if (! exists($ENV{'form.AnalyzeOver'}) ||
1435: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1436: # Default to Tries
1437: $Str .= ' selected ';
1438: }
1439: $Str .= '>'.&mt('Tries').'</option>';
1440: $Str .= '<option value="Time" ';
1441: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1442: $Str .= '>'.&mt('Time').'</option>';
1443: $Str .= '</select>';
1444: $Str .= '</nobr><br />';
1445: }
1446: {
1447: $Str .= '<nobr>'.&mt('Analyze as ');
1448: $Str .= &Apache::loncommon::help_open_topic
1449: ('Analysis_Analyze_as');
1450: $Str .='<select name="AnalyzeAs" >';
1451: $Str .= '<option value="Concepts" ';
1452: if (! exists($ENV{'form.AnalyzeAs'}) ||
1453: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1454: # Default to Concepts
1455: $Str .= ' selected ';
1456: }
1457: $Str .= '>'.&mt('Concepts').'</option>';
1458: $Str .= '<option value="Foils" ';
1459: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1460: $Str .= '>'.&mt('Foils').'</option>';
1461: $Str .= '</select></nobr><br />';
1462: }
1463: {
1464: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1465: $Str .= &Apache::loncommon::help_open_topic
1466: ('Analysis_num_plots');
1467: $Str .= '<select name="NumPlots">';
1468: if (! exists($ENV{'form.NumPlots'})
1469: || $ENV{'form.NumPlots'} < 1
1470: || $ENV{'form.NumPlots'} > 20) {
1471: $ENV{'form.NumPlots'} = 5;
1472: }
1473: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1474: $Str .= '<option value="'.$i.'" ';
1475: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1476: $Str .= '>'.$i.'</option>';
1477: }
1478: $Str .= '</select></nobr>';
1479: }
1480: }
1481: $Str .= '</td>';
1482: ##
1483: ##
1484: $Str .= '</tr>'."\n";
1485: $Str .= '</table>'."\n";
1486: return $Str;
1487: }
1488:
1489: #########################################################
1490: #########################################################
1491: ##
1492: ## Misc Option Response functions
1493: ##
1494: #########################################################
1495: #########################################################
1496: sub get_time_from_row {
1497: my ($row) = @_;
1498: if (ref($row)) {
1499: return $row->[&Apache::loncoursedata::RD_timestamp()];
1500: }
1501: return undef;
1502: }
1503:
1504: sub get_tries_from_row {
1505: my ($row) = @_;
1506: if (ref($row)) {
1507: return $row->[&Apache::loncoursedata::RD_tries()];
1508: }
1509: return undef;
1510: }
1511:
1512: sub hashify_attempt {
1513: my ($row) = @_;
1514: my %attempt;
1515: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1516: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1517: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1518: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1519: return %attempt;
1520: }
1521:
1522: sub Process_OR_Row {
1523: my ($row) = @_;
1524: my %RowData;
1525: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1526: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1527: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1528: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1529: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1530: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1531: return undef if ($award eq 'MISSING_ANSWER');
1532: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1533: $RowData{'_correct'} = 1;
1534: }
1535: $RowData{'_total'} = 1;
1536: my @Foilgrades = split('&',$grading);
1537: my @Foilsubs = split('&',$submission);
1538: for (my $j=0;$j<=$#Foilgrades;$j++) {
1539: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1540: $foilid = &Apache::lonnet::unescape($foilid);
1541: my (undef,$submission) = split('=',$Foilsubs[$j]);
1542: if ($correct) {
1543: $RowData{$foilid}->{'_correct'}++;
1544: } else {
1545: $submission = &Apache::lonnet::unescape($submission);
1546: $RowData{$foilid}->{$submission}++;
1547: }
1548: $RowData{$foilid}->{'_total'}++;
1549: }
1550: return %RowData;
1551: }
1552:
1553: 1;
1554:
1555: __END__
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