1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.80 2004/03/16 16:30:31 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: &NumericalResponseAnalysis($r,$current_problem,
164: $ProblemData,\@Students);
165: } else {
166: $r->print('<h2>This analysis is not supported</h2>');
167: }
168: }
169: $r->print('<hr />');
170: } else {
171: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
172: &mt('Analyze Problem').'" />');
173: $r->print(' 'x5);
174: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
175: $r->print(&Apache::lonstathelpers::ProblemSelector
176: ($problem_types));
177: }
178: }
179:
180:
181: #########################################################
182: #########################################################
183: ##
184: ## Numerical Response Routines
185: ##
186: #########################################################
187: #########################################################
188: sub NumericalResponseAnalysis {
189: my ($r,$problem,$ProblemData,$Students) = @_;
190: my $c = $r->connection();
191: my ($resource,$respid) = ($problem->{'resource'},
192: $problem->{'respid'});
193: $r->print('Response '.$respid.'</br />');
194: my $analysis_html;
195: my $PerformanceData =
196: &Apache::loncoursedata::get_response_data
197: ($Students,$resource->{'symb'},$respid);
198: if (! defined($PerformanceData) ||
199: ref($PerformanceData) ne 'ARRAY' ) {
200: $analysis_html = '<h2>'.
201: &mt('There is no submission data for this resource').
202: '</h2>';
203: $r->print($analysis_html);
204: return;
205: }
206: #
207: # This next call causes all the waiting around that people complain about
208: my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
209: return if ($c->aborted());
210: #
211: # Collate the data
212: my %Data;
213: foreach my $student (@$Students) {
214: my $answer = $student->{'answer'};
215: $Data{$answer}++;
216: }
217: my @Labels = sort {$a <=> $b } keys(%Data);
218: my @PlotData = @Data{@Labels};
219: #
220: my $width = 500;
221: my $height = 100;
222: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
223: \@Labels,\@PlotData);
224: $r->print($plot);
225: return;
226: }
227:
228: sub one_dimensional_plot {
229: my ($r,$width,$height,$N,$Labels,$Data)=@_;
230: #
231: # Compute data -> image scaling factors
232: my $min = $Labels->[0];
233: my $max = $Labels->[-1];
234: my $h_scale = ($width-10)/($max-$min);
235: #
236: my $max_y = 0;
237: foreach (@$Data) {
238: $max_y = $_ if ($max_y < $_);
239: }
240: my $ticscale = 5;
241: if ($max_y * $ticscale > $height/2) {
242: $ticscale = int($height/2/$max_y);
243: $ticscale = 1 if ($ticscale < 1);
244: }
245: #
246: # Create the plot
247: my $plot =
248: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
249: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
250: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
251: my $top = $height/2-$Data->[$idx]*$ticscale;
252: my $bottom = $height/2+$Data->[$idx]*$ticscale;
253: $plot .=
254: &line($xloc,$top,$xloc,$bottom,'888888',1);
255: }
256: #
257: # Put the scale on last to ensure it is on top of the data.
258: if ($min < 0 && $max > 0) {
259: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
260: my $r = 4;
261: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
262: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
263: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
264: } else {
265: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
266: }
267: $plot .= '</drawimage>';
268: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
269:
270: my $title = 'Distribution of correct answers';
271: my $result = '<table>'.
272: '<tr><td colspan="3" align="center">'.
273: '<font size="+2">'.$title.' (N='.$N.')'.
274: '</font>'.
275: '</td></tr>'.
276: '<tr>'.
277: '<td valign="center">'.$min.'</td>'.
278: '<td>'.$plotresult.'</td>'.
279: '<td valign="center">'.$max.'</td>'.
280: '</tr>'.
281: '<tr><td colspan="3" align="center">'.
282: 'Maximum Number of Coinciding Values: '.$max_y.
283: '</td></tr>'.
284: '</table>';
285: return $result;
286: }
287:
288: ##
289: ## Helper subroutines for <drawimage>.
290: ## These should probably go somewhere more suitable soon.
291: sub line {
292: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
293: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
294: }
295:
296: sub rectangle {
297: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
298: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
299: }
300:
301: sub arc {
302: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
303: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
304: }
305:
306: sub circle {
307: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
308: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
309: }
310:
311: sub GetStudentAnswers {
312: my ($r,$problem,$Students) = @_;
313: my $c = $r->connection();
314: my %Answers;
315: my ($resource,$partid,$respid) = ($problem->{'resource'},
316: $problem->{'part'},
317: $problem->{'respid'});
318: # Read in the cache (if it exists) before we start timing things.
319: &Apache::lonstathelpers::ensure_proper_cache($resource->{'symb'});
320: # Open progress window
321: my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
322: ($r,'Student Answer Compilation Status',
323: 'Student Answer Compilation Progress', scalar(@$Students));
324: $r->rflush();
325: foreach my $student (@$Students) {
326: last if ($c->aborted());
327: my $sname = $student->{'username'};
328: my $sdom = $student->{'domain'};
329: my $answer = &Apache::lonstathelpers::analyze_problem_as_student
330: ($resource,$sname,$sdom,$partid,$respid);
331: &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
332: &mt('last student'));
333: $student->{'answer'} = $answer;
334: }
335: &Apache::lonstathelpers::write_answer_cache();
336: return if ($c->aborted());
337: $r->rflush();
338: # close progress window
339: &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
340: return;
341: }
342:
343: sub build_student_data_worksheet {
344: my ($workbook,$format) = @_;
345: my $rows_output = 3;
346: my $cols_output = 0;
347: my $worksheet = $workbook->addworksheet('Student Data');
348: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
349: my @Headers = ('full name','username','domain','section',
350: "student\nnumber",'identifier');
351: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
352: my @Students = @Apache::lonstatistics::Students;
353: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
354: my %ids;
355: foreach my $row (@$studentrows) {
356: my ($mysqlid,$student) = @$row;
357: $ids{$student}=$mysqlid;
358: }
359: foreach my $student (@Students) {
360: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
361: $worksheet->write_row($rows_output++,0,
362: [$student->{'fullname'},
363: $student->{'username'},$student->{'domain'},
364: $student->{'section'},$student->{'id'},
365: $ids{$name_domain}]);
366: }
367: return $worksheet;
368: }
369:
370: #########################################################
371: #########################################################
372: ##
373: ## Radio Response Routines
374: ##
375: #########################################################
376: #########################################################
377: sub RadioResponseAnalysis {
378: my ($r,$problem,$ProblemData,$Students) = @_;
379: my ($resource,$respid) = ($problem->{'resource'},
380: $problem->{'respid'});
381: my $analysis_html;
382: my $PerformanceData =
383: &Apache::loncoursedata::get_response_data
384: ($Students,$resource->{'symb'},$respid);
385: if (! defined($PerformanceData) ||
386: ref($PerformanceData) ne 'ARRAY' ) {
387: $analysis_html = '<h2>'.
388: &mt('There is no submission data for this resource').
389: '</h2>';
390: $r->print($analysis_html);
391: return;
392: }
393: if (exists($ENV{'form.ExcelOutput'})) {
394: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
395: $PerformanceData,$ProblemData);
396: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
397: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
398: $PerformanceData,$ProblemData);
399: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
400: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
401: $PerformanceData,$ProblemData);
402: } else {
403: $analysis_html .= '<h2>'.
404: &mt('The analysis you have selected is not supported at this time').
405: '</h2>';
406: }
407: $r->print($analysis_html);
408: }
409:
410: sub RR_Excel_output {
411: my ($r,$PerformanceData,$ProblemData) = @_;
412: return '<h1>No!</h1>';
413: }
414:
415: sub RR_Tries_Analysis {
416: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
417: my $analysis_html;
418: my $mintries = 1;
419: my $maxtries = $ENV{'form.NumPlots'};
420: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
421: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
422: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
423: $table = '<h3>'.
424: &mt('Not enough data for concept analysis. '.
425: 'Performing Foil Analysis').
426: '</h3>'.$table;
427: $ENV{'form.AnalyzeAs'} = 'Foils';
428: }
429: $analysis_html .= $table;
430: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
431: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
432: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
433: \@TryData,$ProblemData);
434: # } else {
435: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
436: # $Concepts,
437: # \@TryData,
438: # $ProblemData);
439: # }
440: return $analysis_html;
441: }
442:
443: sub RR_tries_data_analysis {
444: my ($r,$Attempt_data) = @_;
445: my @TryData;
446: foreach my $attempt (@$Attempt_data) {
447: my %Attempt = &hashify_attempt($attempt);
448: my ($answer,undef) = split('=',$Attempt{'submission'});
449: $TryData[$Attempt{'tries'}]->{$answer}++;
450: }
451: return @TryData;
452: }
453:
454: sub RR_Time_Analysis {
455: my ($r,$PerformanceData,$ProblemData) = @_;
456: my $html;
457: return $html;
458: }
459:
460: sub RR_Tries_Foil_Analysis {
461: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
462: my $html;
463: #
464: # Compute the data neccessary to make the plots
465: for (my $try=$min;$try<=$max;$try++) {
466: my @PlotData_Correct;
467: my @PlotData_Incorrect;
468: next if ($try > scalar(@{$TryData}));
469: next if (! defined($TryData->[$try]));
470: my %DataSet = %{$TryData->[$try]};
471: my $total = 0;
472: foreach my $foilid (@$Foils) {
473: $total += $DataSet{$foilid};
474: }
475: foreach my $foilid (@$Foils) {
476: if ($total == 0) {
477: push (@PlotData_Correct,0);
478: push (@PlotData_Incorrect,0);
479: } else {
480: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
481: push (@PlotData_Correct,
482: int(100*$DataSet{$foilid}/$total));
483: push (@PlotData_Incorrect,0);
484: } else {
485: push (@PlotData_Correct,0);
486: push (@PlotData_Incorrect,
487: int(100*$DataSet{$foilid}/$total));
488: }
489: }
490: }
491: my $title='Attempt '.$try;
492: my $xlabel = $total.' Submissions';
493: $html.= &Apache::loncommon::DrawBarGraph($title,
494: $xlabel,
495: 'Percent Choosing',
496: 100,
497: ['#33ff00','#ff3300'],
498: undef,
499: \@PlotData_Correct,
500: \@PlotData_Incorrect);
501: }
502: return $html;
503: }
504:
505: sub RR_Tries_Concept_Analysis {
506: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
507: my $html;
508: return $html;
509: }
510:
511: sub RR_Time_Foil_Analysis {
512: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
513: my $html;
514: return $html;
515: }
516:
517: sub RR_Time_Concept_Analysis {
518: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
519: my $html;
520: return $html;
521: }
522:
523:
524: sub get_Radio_problem_data {
525: my ($url) = @_;
526: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
527: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
528: my %Answer = &Apache::lonnet::str2hash($Answ);
529: my %Partdata;
530: foreach my $part (@{$Answer{'parts'}}) {
531: while (my($key,$value) = each(%Answer)) {
532: # if (ref($value) eq 'ARRAY') {
533: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
534: # } else {
535: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
536: # }
537: next if ($key !~ /^$part/);
538: $key =~ s/^$part\.//;
539: if ($key eq 'foils') {
540: $Partdata{$part}->{'_Foils'}=$value;
541: } elsif ($key eq 'options') {
542: $Partdata{$part}->{'_Options'}=$value;
543: } elsif ($key eq 'shown') {
544: $Partdata{$part}->{'_Shown'}=$value;
545: } elsif ($key =~ /^foil.value.(.*)$/) {
546: $Partdata{$part}->{$1}->{'value'}=$value;
547: } elsif ($key =~ /^foil.text.(.*)$/) {
548: $Partdata{$part}->{$1}->{'text'}=$value;
549: }
550: }
551: }
552: return %Partdata;
553: }
554:
555: #########################################################
556: #########################################################
557: ##
558: ## Option Response Routines
559: ##
560: #########################################################
561: #########################################################
562: sub OptionResponseAnalysis {
563: my ($r,$problem,$ProblemData,$Students) = @_;
564: my ($resource,$respid) = ($problem->{'resource'},
565: $problem->{'respid'});
566: # Note: part data is not needed.
567: my $PerformanceData =
568: &Apache::loncoursedata::get_response_data
569: ($Students,$resource->{'symb'},$respid);
570: if (! defined($PerformanceData) ||
571: ref($PerformanceData) ne 'ARRAY' ) {
572: $r->print('<h2>'.
573: &mt('There is no student data for this problem.').
574: '</h2>');
575: } else {
576: $r->rflush();
577: if (exists($ENV{'form.ExcelOutput'})) {
578: my $result = &OR_excel_sheet($r,$resource,
579: $PerformanceData,
580: $ProblemData);
581: $r->print($result);
582: $r->rflush();
583: } else {
584: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
585: my $analysis_html = &OR_tries_analysis($r,
586: $PerformanceData,
587: $ProblemData);
588: $r->print($analysis_html);
589: $r->rflush();
590: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
591: my $analysis_html = &OR_time_analysis($PerformanceData,
592: $ProblemData);
593: $r->print($analysis_html);
594: $r->rflush();
595: } else {
596: $r->print('<h2>'.
597: &mt('The analysis you have selected is '.
598: 'not supported at this time').
599: '</h2>');
600: }
601: }
602: }
603: }
604:
605: #########################################################
606: #
607: # Option Response: Tries Analysis
608: #
609: #########################################################
610: sub OR_tries_analysis {
611: my ($r,$PerformanceData,$ORdata) = @_;
612: my $mintries = 1;
613: my $maxtries = $ENV{'form.NumPlots'};
614: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
615: if (! defined($Concepts) ||
616: ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
617: $table = '<h3>'.
618: &mt('Not enough data for concept analysis. '.
619: 'Performing Foil Analysis').
620: '</h3>'.$table;
621: $ENV{'form.AnalyzeAs'} = 'Foils';
622: }
623: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
624: $mintries,$maxtries);
625: my $analysis = '';
626: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
627: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
628: \%ResponseData,$ORdata);
629: } else {
630: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
631: $Concepts,\%ResponseData,$ORdata);
632: }
633: $table .= $analysis;
634: return $table;
635: }
636:
637: sub OR_Tries_Foil_Analysis {
638: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
639: my %ResponseData = %$respdat;
640: #
641: # Compute the data neccessary to make the plots
642: my @PlotData;
643: foreach my $concept (@$Concepts) {
644: foreach my $foilid (@{$concept->{'foils'}}) {
645: for (my $try=$mintries;$try<=$maxtries;$try++) {
646: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
647: push(@{$PlotData[$try]->{'_correct'}},0);
648: } else {
649: push(@{$PlotData[$try]->{'_correct'}},
650: 100*$ResponseData{$foilid}->[$try]->{'_correct'}/
651: $ResponseData{$foilid}->[$try]->{'_total'});
652: }
653: foreach my $option (@{$ORdata->{'_Options'}}) {
654: push(@{$PlotData[$try]->{'_total'}},
655: $ResponseData{$foilid}->[$try]->{'_total'});
656: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
657: push (@{$PlotData[$try]->{$option}},0);
658: } else {
659: if ($ResponseData{$foilid}->[$try]->{'_total'} ==
660: $ResponseData{$foilid}->[$try]->{'_correct'}) {
661: push(@{$PlotData[$try]->{$option}},0);
662: } else {
663: push (@{$PlotData[$try]->{$option}},
664: 100 *
665: $ResponseData{$foilid}->[$try]->{$option} /
666: ($ResponseData{$foilid}->[$try]->{'_total'}
667: -
668: $ResponseData{$foilid}->[$try]->{'_correct'}
669: ));
670: }
671: }
672: } # End of foreach my $option
673: }
674: } # End of foreach my $foilid
675: } # End of foreach my $concept
676: #
677: # Build a table for the plots
678: my $analysis_html = "<table>\n";
679: my $optionkey = &build_option_index($ORdata);
680: for (my $try=$mintries;$try<=$maxtries;$try++) {
681: my $count = $ResponseData{'_total'}->[$try];
682: my $title = 'Submission '.$try.' (N='.$count.')';
683: my @Datasets;
684: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
685: next if (! exists($PlotData[$try]->{$option}));
686: push(@Datasets,$PlotData[$try]->{$option});
687: }
688: #
689: # Put a blank in the data set between concepts
690: for (my $set =0;$set<=$#Datasets;$set++) {
691: my @Data = @{$Datasets[$set]};
692: my $idx = 0;
693: foreach my $concept (@{$Concepts}) {
694: foreach my $foilid (@{$concept->{'foils'}}) {
695: $Datasets[$set]->[$idx++]=shift(@Data);
696: }
697: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
698: $Datasets[$set]->[$idx++] = 0;
699: }
700: }
701: }
702: #
703: # Set up the labels needed for the bar graph
704: my @Labels;
705: my $idx = 1;
706: foreach my $concept (@{$Concepts}) {
707: foreach my $foilid (@{$concept->{'foils'}}) {
708: push(@Labels,$idx++);
709: }
710: push(@Labels,'');
711: }
712: #
713: my $correctgraph = &Apache::loncommon::DrawBarGraph
714: ($title,'Foil Number','Percent Correct',
715: 100,$plotcolors,\@Labels,$Datasets[0]);
716: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
717:
718: #
719: #
720: next if (! defined($Datasets[0]));
721: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
722: $Datasets[0]->[$i]=0;
723: }
724: $count = $ResponseData{'_total'}->[$try] -
725: $ResponseData{'_correct'}->[$try];
726: $title = 'Submission '.$try.' (N='.$count.')';
727: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
728: ($title,'Foil Number','% Option Chosen Incorrectly',
729: 100,$plotcolors,\@Labels,@Datasets);
730: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
731: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
732: }
733: $analysis_html .= "</table>\n";
734: return $analysis_html;
735: }
736:
737: sub OR_Tries_Concept_Analysis {
738: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
739: my %ResponseData = %$respdat;
740: my $analysis_html = "<table>\n";
741: #
742: # Compute the data neccessary to make the plots
743: my @PlotData;
744: # Concept analysis
745: #
746: # Note: we do not bother with characterizing the students incorrect
747: # answers at the concept level because an incorrect answer for one foil
748: # may be a correct answer for another foil.
749: my %ConceptData;
750: foreach my $concept (@{$Concepts}) {
751: for (my $i=$mintries;$i<=$maxtries;$i++) {
752: #
753: # Gather the per-attempt data
754: my $cdata = $ConceptData{$concept}->[$i];
755: foreach my $foilid (@{$concept->{'foils'}}) {
756: $cdata->{'_correct'} +=
757: $ResponseData{$foilid}->[$i]->{'_correct'};
758: $cdata->{'_total'} +=
759: $ResponseData{$foilid}->[$i]->{'_total'};
760: }
761: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
762: if ($cdata->{'_total'} == 0) {
763: push (@{$PlotData[$i]->{'_correct'}},0);
764: } else {
765: push (@{$PlotData[$i]->{'_correct'}},
766: 100*$cdata->{'_correct'}/$cdata->{'_total'});
767: }
768: }
769: }
770: # Build a table for the plots
771: for (my $i=$mintries;$i<=$maxtries;$i++) {
772: my $minstu = $PlotData[$i]->{'_total'}->[0];
773: my $maxstu = $PlotData[$i]->{'_total'}->[0];
774: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
775: if ($minstu > $count) {
776: $minstu = $count;
777: }
778: if ($maxstu < $count) {
779: $maxstu = $count;
780: }
781: }
782: $maxstu = 0 if (! defined($maxstu));
783: $minstu = 0 if (! defined($minstu));
784: my $title;
785: my $count = $ResponseData{'_total'}->[$i];
786: if ($count == 0) {
787: $count = 'no submissions';
788: } elsif ($count == 1) {
789: $count = '1 submission';
790: } else {
791: $count = $count.' submissions';
792: }
793: $title = 'Attempt '.$i.', '.$count;
794: my $graphlink = &Apache::loncommon::DrawBarGraph
795: ($title,'Concept Number','Percent Correct',
796: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
797: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
798: }
799: $analysis_html .= "</table>\n";
800: return $analysis_html;
801: }
802:
803: sub OR_analyze_by_tries {
804: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
805: my %Trydata;
806: $mintries = 1 if (! defined($mintries) || $mintries < 1);
807: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
808: foreach my $row (@$PerformanceData) {
809: next if (! defined($row));
810: my $tries = &get_tries_from_row($row);
811: my %Row = &Process_OR_Row($row);
812: next if (! %Row);
813: while (my ($foilid,$href) = each(%Row)) {
814: if (! ref($href)) {
815: $Trydata{$foilid}->[$tries] += $href;
816: next;
817: }
818: while (my ($option,$value) = each(%$href)) {
819: $Trydata{$foilid}->[$tries]->{$option}+=$value;
820: }
821: }
822: }
823: return %Trydata;
824: }
825:
826: #########################################################
827: #
828: # Option Response: Time Analysis
829: #
830: #########################################################
831: sub OR_time_analysis {
832: my ($PerformanceData,$ORdata) = @_;
833: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
834: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
835: $table = '<h3>'.
836: &mt('Not enough data for concept analysis. '.
837: 'Performing Foil Analysis').
838: '</h3>'.$table;
839: $ENV{'form.AnalyzeAs'} = 'Foils';
840: }
841: my $num_plots = $ENV{'form.NumPlots'};
842: my $num_data = scalar(@$PerformanceData)-1;
843: my $percent = sprintf('%2f',100/$num_plots);
844: #
845: $table .= "<table>\n";
846: for (my $i=0;$i<$num_plots;$i++) {
847: ##
848: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
849: ('startdate_'.$i);
850: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
851: ('enddate_'.$i);
852: if (! defined($starttime) || ! defined($endtime)) {
853: my $sec_in_day = 86400;
854: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
855: my ($sday,$smon,$syear);
856: (undef,undef,undef,$sday,$smon,$syear) =
857: localtime($last_sub_time - $sec_in_day*$i);
858: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
859: $endtime = $starttime + $sec_in_day;
860: if ($i == ($num_plots -1 )) {
861: $starttime = &get_time_from_row($PerformanceData->[0]);
862: }
863: }
864: my $startdateform = &Apache::lonhtmlcommon::date_setter
865: ('Statistics','startdate_'.$i,$starttime);
866: my $enddateform = &Apache::lonhtmlcommon::date_setter
867: ('Statistics','enddate_'.$i,$endtime);
868: #
869: my $begin_index;
870: my $end_index;
871: my $j;
872: while (++$j < scalar(@$PerformanceData)) {
873: last if (&get_time_from_row($PerformanceData->[$j])
874: > $starttime);
875: }
876: $begin_index = $j;
877: while (++$j < scalar(@$PerformanceData)) {
878: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
879: }
880: $end_index = $j;
881: ##
882: my $interval = {
883: begin_index => $begin_index,
884: end_index => $end_index,
885: startdateform => $startdateform,
886: enddateform => $enddateform,
887: };
888: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
889: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
890: $interval);
891: } else {
892: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
893: $Concepts,$interval);
894: }
895: }
896: #
897: return $table;
898: }
899:
900: sub OR_Foil_Time_Analysis {
901: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
902: my $analysis_html;
903: my $foilkey = &build_option_index($ORdata);
904: my ($begin_index,$end_index) = ($interval->{'begin_index'},
905: $interval->{'end_index'});
906: my %TimeData;
907: #
908: # Compute the number getting the foils correct or incorrects
909: for (my $j=$begin_index;$j<=$end_index;$j++) {
910: my $row = $PerformanceData->[$j];
911: next if (! defined($row));
912: my %Row = &Process_OR_Row($row);
913: while (my ($foilid,$href) = each(%Row)) {
914: if (! ref($href)) {
915: $TimeData{$foilid} += $href;
916: next;
917: }
918: while (my ($option,$value) = each(%$href)) {
919: $TimeData{$foilid}->{$option}+=$value;
920: }
921: }
922: }
923: my @Plotdata;
924: foreach my $foil (@$Foils) {
925: my $total = $TimeData{$foil}->{'_total'};
926: if ($total == 0) {
927: push(@{$Plotdata[0]},0);
928: } else {
929: push(@{$Plotdata[0]},
930: 100 * $TimeData{$foil}->{'_correct'} / $total);
931: }
932: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
933: my $optionidx = 1;
934: foreach my $option (@{$ORdata->{'_Options'}}) {
935: if ($total_incorrect == 0) {
936: push(@{$Plotdata[$optionidx]},0);
937: } else {
938: push(@{$Plotdata[$optionidx]},
939: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
940: }
941: } continue {
942: $optionidx++;
943: }
944: }
945: #
946: # Create the plot
947: my $count = $end_index-$begin_index;
948: my $title;
949: if ($count == 0) {
950: $title = 'no submissions';
951: } elsif ($count == 1) {
952: $title = 'one submission';
953: } else {
954: $title = $count.' submissions';
955: }
956: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
957: 'Foil Number',
958: 'Percent Correct',
959: 100,
960: $plotcolors,
961: undef,
962: $Plotdata[0]);
963: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
964: $Plotdata[0]->[$j]=0;
965: }
966: $count = $end_index-$begin_index-$TimeData{'_correct'};
967: if ($count == 0) {
968: $title = 'no submissions';
969: } elsif ($count == 1) {
970: $title = 'one submission';
971: } else {
972: $title = $count.' submissions';
973: }
974: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
975: 'Foil Number',
976: 'Incorrect Option Choice',
977: 100,
978: $plotcolors,
979: undef,
980: @Plotdata);
981: $analysis_html.='<tr>'.
982: '<td>'.$correctplot.'</td>'.
983: '<td>'.$incorrectplot.'</td>'.
984: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
985: $analysis_html.= '<tr>'.'<td colspan="3">'.
986: '<b>Start Time</b>:'.
987: ' '.$interval->{'startdateform'}.'<br />'.
988: '<b>End Time</b> : '.
989: ' '.$interval->{'enddateform'}.'<br />'.
990: # '<b>Plot Title</b> :'.
991: # (" "x3).$interval->{'titleform'}.
992: '</td>'.
993: "</tr>\n";
994: return $analysis_html;
995: }
996:
997: sub OR_Concept_Time_Analysis {
998: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
999: my $analysis_html;
1000: ##
1001: ## Determine starttime, endtime, startindex, endindex
1002: my ($begin_index,$end_index) = ($interval->{'begin_index'},
1003: $interval->{'end_index'});
1004: my %TimeData;
1005: #
1006: # Compute the number getting the foils correct or incorrects
1007: for (my $j=$begin_index;$j<=$end_index;$j++) {
1008: my $row = $PerformanceData->[$j];
1009: next if (! defined($row));
1010: my %Row = &Process_OR_Row($row);
1011: while (my ($foilid,$href) = each(%Row)) {
1012: if (! ref($href)) {
1013: $TimeData{$foilid} += $href;
1014: next;
1015: }
1016: while (my ($option,$value) = each(%$href)) {
1017: $TimeData{$foilid}->{$option}+=$value;
1018: }
1019: }
1020: }
1021: #
1022: # Put the data in plottable form
1023: my @Plotdata;
1024: foreach my $concept (@$Concepts) {
1025: my ($total,$correct);
1026: foreach my $foil (@{$concept->{'foils'}}) {
1027: $total += $TimeData{$foil}->{'_total'};
1028: $correct += $TimeData{$foil}->{'_correct'};
1029: }
1030: if ($total == 0) {
1031: push(@Plotdata,0);
1032: } else {
1033: push(@Plotdata,100 * $correct / $total);
1034: }
1035: }
1036: #
1037: # Create the plot
1038: my $title = ($end_index - $begin_index).' submissions';
1039: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1040: 'Concept Number',
1041: 'Percent Correct',
1042: 100,
1043: $plotcolors,
1044: undef,
1045: \@Plotdata);
1046: $analysis_html.='<tr>'.
1047: '<td>'.$correctplot.'</td>'.
1048: '<td align="left" valign="top">'.
1049: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
1050: '<b>End Time</b> : '.
1051: ' '.$interval->{'enddateform'}.'<br />'.
1052: # '<b>Plot Title</b> :'.(" "x3).
1053: # $interval->{'titleform'}.
1054: '</td>'.
1055: "</tr>\n";
1056: return $analysis_html;
1057: }
1058:
1059: #########################################################
1060: #########################################################
1061: ##
1062: ## Excel output
1063: ##
1064: #########################################################
1065: #########################################################
1066: sub OR_excel_sheet {
1067: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1068: my $response = '';
1069: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1070: #
1071: # Create excel worksheet
1072: my $filename = '/prtspool/'.
1073: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1074: time.'_'.rand(1000000000).'.xls';
1075: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1076: if (! defined($workbook)) {
1077: $r->log_error("Error creating excel spreadsheet $filename: $!");
1078: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1079: "This error has been logged. ".
1080: "Please alert your LON-CAPA administrator").
1081: '</p>');
1082: return undef;
1083: }
1084: #
1085: $workbook->set_tempdir('/home/httpd/perl/tmp');
1086: my $format = &Apache::loncommon::define_excel_formats($workbook);
1087: #
1088: # Create and populate main worksheets
1089: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1090: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1091: my $response_data_sheet = $workbook->addworksheet('Response Data');
1092: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1093: $response_data_sheet) {
1094: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1095: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1096: }
1097: #
1098: my $result;
1099: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1100: $Concepts,$ORdata);
1101: if ($result ne 'okay') {
1102: # Do something useful
1103: }
1104: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1105: $PerformanceData,$Foils,
1106: $ORdata);
1107: if ($result ne 'okay') {
1108: # Do something useful
1109: }
1110: $response_data_sheet->activate();
1111: #
1112: # Close the excel file
1113: $workbook->close();
1114: #
1115: # Write a link to allow them to download it
1116: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1117: '<p><a href="'.$filename.'">'.
1118: &mt('Your Excel spreadsheet.').
1119: '</a></p>'."\n";
1120: return $result;
1121: }
1122:
1123: sub OR_build_problem_data_worksheet {
1124: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1125: my $rows_output = 3;
1126: my $cols_output = 0;
1127: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1128: ##
1129: ##
1130: my @Headers;
1131: if (@$Concepts > 1) {
1132: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1133: 'Foil Name','Foil Text','Correct value');
1134: } else {
1135: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1136: }
1137: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1138: my %Foildata = %{$ORdata->{'_Foils'}};
1139: my $conceptindex = 1;
1140: my $foilindex = 1;
1141: foreach my $concept (@$Concepts) {
1142: my @FoilsInConcept = @{$concept->{'foils'}};
1143: my $firstfoil = shift(@FoilsInConcept);
1144: if (@$Concepts > 1) {
1145: $worksheet->write_row($rows_output++,0,
1146: [$conceptindex,
1147: $concept->{'name'},
1148: $foilindex++,
1149: $Foildata{$firstfoil}->{'name'},
1150: $Foildata{$firstfoil}->{'text'},
1151: $Foildata{$firstfoil}->{'value'},]);
1152: } else {
1153: $worksheet->write_row($rows_output++,0,
1154: [ $foilindex++,
1155: $Foildata{$firstfoil}->{'name'},
1156: $Foildata{$firstfoil}->{'text'},
1157: $Foildata{$firstfoil}->{'value'},]);
1158: }
1159: foreach my $foilid (@FoilsInConcept) {
1160: if (@$Concepts > 1) {
1161: $worksheet->write_row($rows_output++,0,
1162: ['',
1163: '',
1164: $foilindex,
1165: $Foildata{$foilid}->{'name'},
1166: $Foildata{$foilid}->{'text'},
1167: $Foildata{$foilid}->{'value'},]);
1168: } else {
1169: $worksheet->write_row($rows_output++,0,
1170: [$foilindex,
1171: $Foildata{$foilid}->{'name'},
1172: $Foildata{$foilid}->{'text'},
1173: $Foildata{$foilid}->{'value'},]);
1174: }
1175: } continue {
1176: $foilindex++;
1177: }
1178: } continue {
1179: $conceptindex++;
1180: }
1181: $rows_output++;
1182: $rows_output++;
1183: ##
1184: ## Option data output
1185: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1186: foreach my $string (@{$ORdata->{'_Options'}}) {
1187: $worksheet->write($rows_output++,0,$string);
1188: }
1189: return 'okay';
1190: }
1191:
1192: sub OR_build_response_data_worksheet {
1193: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1194: my $rows_output = 3;
1195: my $cols_output = 0;
1196: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1197: $worksheet->set_column(1,1,20);
1198: $worksheet->set_column(2,2,13);
1199: my @Headers = ('identifier','time','award detail','attempt');
1200: foreach my $foil (@$Foils) {
1201: push (@Headers,$foil.' submission');
1202: push (@Headers,$foil.' grading');
1203: }
1204: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1205: #
1206: foreach my $row (@$PerformanceData) {
1207: next if (! defined($row));
1208: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1209: my @Foilgrades = split('&',$grading);
1210: my @Foilsubs = split('&',$submission);
1211: my %ResponseData;
1212: for (my $j=0;$j<=$#Foilgrades;$j++) {
1213: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1214: my (undef,$submission) = split('=',$Foilsubs[$j]);
1215: $submission = &Apache::lonnet::unescape($submission);
1216: $ResponseData{$foilid.' submission'}=$submission;
1217: $ResponseData{$foilid.' award'}=$correct;
1218: }
1219: $worksheet->write($rows_output,$cols_output++,$student);
1220: $worksheet->write($rows_output,$cols_output++,
1221: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1222: $worksheet->write($rows_output,$cols_output++,$award);
1223: $worksheet->write($rows_output,$cols_output++,$tries);
1224: foreach my $foilid (@$Foils) {
1225: $worksheet->write($rows_output,$cols_output++,
1226: $ResponseData{$foilid.' submission'});
1227: $worksheet->write($rows_output,$cols_output++,
1228: $ResponseData{$foilid.' award'});
1229: }
1230: $rows_output++;
1231: $cols_output = 0;
1232: }
1233: return;
1234: }
1235:
1236: sub build_foil_index {
1237: my ($ORdata) = @_;
1238: return if (! exists($ORdata->{'_Foils'}));
1239: my %Foildata = %{$ORdata->{'_Foils'}};
1240: my @Foils = sort(keys(%Foildata));
1241: my %Concepts;
1242: foreach my $foilid (@Foils) {
1243: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1244: $foilid);
1245: }
1246: undef(@Foils);
1247: # Having gathered the concept information in a hash, we now translate it
1248: # into an array because we need to be consistent about order.
1249: # Also put the foils in order, too.
1250: my $sortfunction = sub {
1251: my %Numbers = (one => 1,
1252: two => 2,
1253: three => 3,
1254: four => 4,
1255: five => 5,
1256: six => 6,
1257: seven => 7,
1258: eight => 8,
1259: nine => 9,
1260: ten => 10,);
1261: my $a1 = lc($a);
1262: my $b1 = lc($b);
1263: if (exists($Numbers{$a1})) {
1264: $a1 = $Numbers{$a1};
1265: }
1266: if (exists($Numbers{$b1})) {
1267: $b1 = $Numbers{$b1};
1268: }
1269: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1270: return $a1 <=> $b1;
1271: } else {
1272: return $a1 cmp $b1;
1273: }
1274: };
1275: my @Concepts;
1276: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1277: if (! defined($Concepts{$concept})) {
1278: $Concepts{$concept}=[];
1279: # next;
1280: }
1281: push(@Concepts,{ name => $concept,
1282: foils => [@{$Concepts{$concept}}]});
1283: push(@Foils,(@{$Concepts{$concept}}));
1284: }
1285: #
1286: # Build up the table of row labels.
1287: my $table = '<table border="1" >'."\n";
1288: if (@Concepts > 1) {
1289: $table .= '<tr>'.
1290: '<th>'.&mt('Concept Number').'</th>'.
1291: '<th>'.&mt('Concept').'</th>'.
1292: '<th>'.&mt('Foil Number').'</th>'.
1293: '<th>'.&mt('Foil Name').'</th>'.
1294: '<th>'.&mt('Foil Text').'</th>'.
1295: '<th>'.&mt('Correct Value').'</th>'.
1296: "</tr>\n";
1297: } else {
1298: $table .= '<tr>'.
1299: '<th>'.&mt('Foil Number').'</th>'.
1300: '<th>'.&mt('Foil Name').'</th>'.
1301: '<th>'.&mt('Foil Text').'</th>'.
1302: '<th>'.&mt('Correct Value').'</th>'.
1303: "</tr>\n";
1304: }
1305: my $conceptindex = 1;
1306: my $foilindex = 1;
1307: foreach my $concept (@Concepts) {
1308: my @FoilsInConcept = @{$concept->{'foils'}};
1309: my $firstfoil = shift(@FoilsInConcept);
1310: if (@Concepts > 1) {
1311: $table .= '<tr>'.
1312: '<td>'.$conceptindex.'</td>'.
1313: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1314: '<td>'.$foilindex++.'</td>'.
1315: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1316: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1317: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1318: "</tr>\n";
1319: } else {
1320: $table .= '<tr>'.
1321: '<td>'.$foilindex++.'</td>'.
1322: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1323: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1324: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1325: "</tr>\n";
1326: }
1327: foreach my $foilid (@FoilsInConcept) {
1328: if (@Concepts > 1) {
1329: $table .= '<tr>'.
1330: '<td></td>'.
1331: '<td></td>'.
1332: '<td>'.$foilindex.'</td>'.
1333: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1334: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1335: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1336: "</tr>\n";
1337: } else {
1338: $table .= '<tr>'.
1339: '<td>'.$foilindex.'</td>'.
1340: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1341: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1342: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1343: "</tr>\n";
1344: }
1345: } continue {
1346: $foilindex++;
1347: }
1348: } continue {
1349: $conceptindex++;
1350: }
1351: $table .= "</table>\n";
1352: #
1353: # Build option index with color stuff
1354: return ($table,\@Foils,\@Concepts);
1355: }
1356:
1357: sub build_option_index {
1358: my ($ORdata)= @_;
1359: my $table = "<table>\n";
1360: my $optionindex = 0;
1361: my @Rows;
1362: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1363: push (@Rows,
1364: '<tr>'.
1365: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1366: (' 'x4).'</td>'.
1367: '<td>'.&HTML::Entities::encode($option).'</td>'.
1368: "</tr>\n");
1369: }
1370: shift(@Rows); # Throw away 'correct option chosen' color
1371: $table .= join('',reverse(@Rows));
1372: $table .= "</table>\n";
1373: }
1374:
1375: #########################################################
1376: #########################################################
1377: ##
1378: ## Generic Interface Routines
1379: ##
1380: #########################################################
1381: #########################################################
1382: sub CreateInterface {
1383: ##
1384: ## Environment variable initialization
1385: if (! exists$ENV{'form.AnalyzeOver'}) {
1386: $ENV{'form.AnalyzeOver'} = 'Tries';
1387: }
1388: ##
1389: ## Build the menu
1390: my $Str = '';
1391: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1392: (undef,'Detailed Problem Analysis');
1393: $Str .= '<table cellspacing="5">'."\n";
1394: $Str .= '<tr>';
1395: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1396: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1397: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1398: $Str .= '<td align="center"> </td>';
1399: $Str .= '</tr>'."\n";
1400: ##
1401: ##
1402: $Str .= '<tr><td align="center">'."\n";
1403: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1404: $Str .= '</td>';
1405: #
1406: $Str .= '<td align="center">';
1407: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1408: $Str .= '</td>';
1409: #
1410: # $Str .= '<td align="center">';
1411: my $only_seq_with_assessments = sub {
1412: my $s=shift;
1413: if ($s->{'num_assess'} < 1) {
1414: return 0;
1415: } else {
1416: return 1;
1417: }
1418: };
1419: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1420: $only_seq_with_assessments);
1421: ##
1422: ##
1423: $Str .= '<td>';
1424: { # These braces are here to organize the code, not scope it.
1425: {
1426: $Str .= '<nobr>'.&mt('Analyze Over ');
1427: $Str .= &Apache::loncommon::help_open_topic
1428: ('Analysis_Analyze_Over');
1429: $Str .='<select name="AnalyzeOver" >';
1430: $Str .= '<option value="Tries" ';
1431: if (! exists($ENV{'form.AnalyzeOver'}) ||
1432: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1433: # Default to Tries
1434: $Str .= ' selected ';
1435: }
1436: $Str .= '>'.&mt('Tries').'</option>';
1437: $Str .= '<option value="Time" ';
1438: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1439: $Str .= '>'.&mt('Time').'</option>';
1440: $Str .= '</select>';
1441: $Str .= '</nobr><br />';
1442: }
1443: {
1444: $Str .= '<nobr>'.&mt('Analyze as ');
1445: $Str .= &Apache::loncommon::help_open_topic
1446: ('Analysis_Analyze_as');
1447: $Str .='<select name="AnalyzeAs" >';
1448: $Str .= '<option value="Concepts" ';
1449: if (! exists($ENV{'form.AnalyzeAs'}) ||
1450: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1451: # Default to Concepts
1452: $Str .= ' selected ';
1453: }
1454: $Str .= '>'.&mt('Concepts').'</option>';
1455: $Str .= '<option value="Foils" ';
1456: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1457: $Str .= '>'.&mt('Foils').'</option>';
1458: $Str .= '</select></nobr><br />';
1459: }
1460: {
1461: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1462: $Str .= &Apache::loncommon::help_open_topic
1463: ('Analysis_num_plots');
1464: $Str .= '<select name="NumPlots">';
1465: if (! exists($ENV{'form.NumPlots'})
1466: || $ENV{'form.NumPlots'} < 1
1467: || $ENV{'form.NumPlots'} > 20) {
1468: $ENV{'form.NumPlots'} = 5;
1469: }
1470: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1471: $Str .= '<option value="'.$i.'" ';
1472: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1473: $Str .= '>'.$i.'</option>';
1474: }
1475: $Str .= '</select></nobr>';
1476: }
1477: }
1478: $Str .= '</td>';
1479: ##
1480: ##
1481: $Str .= '</tr>'."\n";
1482: $Str .= '</table>'."\n";
1483: return $Str;
1484: }
1485:
1486: #########################################################
1487: #########################################################
1488: ##
1489: ## Misc Option Response functions
1490: ##
1491: #########################################################
1492: #########################################################
1493: sub get_time_from_row {
1494: my ($row) = @_;
1495: if (ref($row)) {
1496: return $row->[&Apache::loncoursedata::RD_timestamp()];
1497: }
1498: return undef;
1499: }
1500:
1501: sub get_tries_from_row {
1502: my ($row) = @_;
1503: if (ref($row)) {
1504: return $row->[&Apache::loncoursedata::RD_tries()];
1505: }
1506: return undef;
1507: }
1508:
1509: sub hashify_attempt {
1510: my ($row) = @_;
1511: my %attempt;
1512: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1513: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1514: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1515: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1516: return %attempt;
1517: }
1518:
1519: sub Process_OR_Row {
1520: my ($row) = @_;
1521: my %RowData;
1522: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1523: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1524: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1525: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1526: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1527: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1528: return undef if ($award eq 'MISSING_ANSWER');
1529: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1530: $RowData{'_correct'} = 1;
1531: }
1532: $RowData{'_total'} = 1;
1533: my @Foilgrades = split('&',$grading);
1534: my @Foilsubs = split('&',$submission);
1535: for (my $j=0;$j<=$#Foilgrades;$j++) {
1536: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1537: $foilid = &Apache::lonnet::unescape($foilid);
1538: my (undef,$submission) = split('=',$Foilsubs[$j]);
1539: if ($correct) {
1540: $RowData{$foilid}->{'_correct'}++;
1541: } else {
1542: $submission = &Apache::lonnet::unescape($submission);
1543: $RowData{$foilid}->{$submission}++;
1544: }
1545: $RowData{$foilid}->{'_total'}++;
1546: }
1547: return %RowData;
1548: }
1549:
1550: 1;
1551:
1552: __END__
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