1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.86 2004/06/23 20:51:14 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 $plotcolors = ['#33ff00',
43: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
44: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
45: ];
46:
47: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
48: text => 'Previous Problem' },
49: { name => 'ProblemAnalysis',
50: text => 'Analyze Problem Again' },
51: { name => 'NextProblemAnalysis',
52: text => 'Next Problem' },
53: { name => 'break'},
54: { name => 'SelectAnother',
55: text => 'Choose a different Problem' },
56: { name => 'ExcelOutput',
57: text => 'Produce Excel Output' });
58:
59:
60: sub BuildProblemAnalysisPage {
61: my ($r,$c)=@_;
62: #
63: my %Saveable_Parameters = ('Status' => 'scalar',
64: 'Section' => 'array',
65: 'NumPlots' => 'scalar',
66: 'AnalyzeAs' => 'scalar',
67: 'AnalyzeOver' => 'scalar',
68: );
69: &Apache::loncommon::store_course_settings('problem_analysis',
70: \%Saveable_Parameters);
71: &Apache::loncommon::restore_course_settings('problem_analysis',
72: \%Saveable_Parameters);
73: #
74: &Apache::lonstatistics::PrepareClasslist();
75: #
76: $r->print(&CreateInterface());
77: #
78: my @Students = @Apache::lonstatistics::Students;
79: #
80: if (@Students < 1 && exists($ENV{'form.firstrun'})) {
81: $r->print('<h2>There are no students in the sections selected</h2>');
82: }
83: #
84: my @CacheButtonHTML =
85: &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
86: $r->rflush();
87: #
88: my $problem_types = '(option|radiobutton|numerical)';
89: if (exists($ENV{'form.problemchoice'}) &&
90: ! exists($ENV{'form.SelectAnother'})) {
91: foreach my $button (@SubmitButtons) {
92: if ($button->{'name'} eq 'break') {
93: $r->print("<br />\n");
94: } else {
95: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
96: 'value="'.&mt($button->{'text'}).'" />');
97: $r->print(' 'x5);
98: }
99: }
100: foreach my $html (@CacheButtonHTML) {
101: $r->print($html.(' 'x5));
102: }
103: #
104: $r->print('<hr />');
105: $r->rflush();
106: #
107: # Determine which problem we are to analyze
108: my $current_problem = &Apache::lonstathelpers::get_target_from_id
109: ($ENV{'form.problemchoice'});
110: #
111: my ($prev,$curr,$next) =
112: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
113: $problem_types,
114: 'response',
115: );
116: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
117: $current_problem = $prev;
118: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
119: $current_problem = $next;
120: } else {
121: $current_problem = $curr;
122: }
123: #
124: # Store the current problem choice and send it out in the form
125: $ENV{'form.problemchoice'} =
126: &Apache::lonstathelpers::make_target_id($current_problem);
127: $r->print('<input type="hidden" name="problemchoice" value="'.
128: $ENV{'form.problemchoice'}.'" />');
129: #
130: if (! defined($current_problem->{'resource'})) {
131: $r->print('resource is undefined');
132: } else {
133: my $resource = $current_problem->{'resource'};
134: $r->print('<h1>'.$resource->{'title'}.'</h1>');
135: $r->print('<h3>'.$resource->{'src'}.'</h3>');
136: $r->print(&Apache::lonstathelpers::render_resource($resource));
137: $r->rflush();
138: my %Data = &Apache::lonstathelpers::get_problem_data
139: ($resource->{'src'});
140: my $ProblemData = $Data{$current_problem->{'part'}.
141: '.'.
142: $current_problem->{'respid'}};
143: if ($current_problem->{'resptype'} eq 'option') {
144: &OptionResponseAnalysis($r,$current_problem,
145: $ProblemData,
146: \@Students);
147: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
148: &RadioResponseAnalysis($r,$current_problem,
149: $ProblemData,
150: \@Students);
151: } elsif ($current_problem->{'resptype'} eq 'numerical') {
152: ##
153: ## analyze all responses of a problem at once
154: my $res = $current_problem->{'resource'};
155: foreach my $partid (@{$res->{'parts'}}) {
156: $current_problem->{'part'} = $partid;
157: foreach my $respid (@{$res->{'partdata'}->{$partid}->{'ResponseIds'}}) {
158: $current_problem->{'respid'}=$respid;
159: &NumericalResponseAnalysis($r,$current_problem,
160: $ProblemData,\@Students);
161: }
162: }
163: } else {
164: $r->print('<h2>This analysis is not supported</h2>');
165: }
166: }
167: $r->print('<hr />');
168: } else {
169: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
170: &mt('Analyze Problem').'" />');
171: $r->print(' 'x5);
172: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
173: $r->print(&Apache::lonstathelpers::ProblemSelector
174: ($problem_types));
175: }
176: }
177:
178:
179: #########################################################
180: #########################################################
181: ##
182: ## Numerical Response Routines
183: ##
184: #########################################################
185: #########################################################
186: sub NumericalResponseAnalysis {
187: my ($r,$problem,$ProblemData,$Students) = @_;
188: my $c = $r->connection();
189: my ($resource,$partid,$respid) = ($problem->{'resource'},
190: $problem->{'part'},
191: $problem->{'respid'});
192: #
193: if (scalar(@{$resource->{'parts'}})>1) {
194: if (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) {
195: $r->print('<h3>'.
196: &mt('Part [_1], response [_2].',$partid,$respid).
197: '</h3>');
198: } else {
199: $r->print('<h3>'.
200: &mt('Part [_1]',$partid,$respid).
201: '</h3>');
202: }
203: } elsif (@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}}>1) {
204: $r->print('<h3>'.&mt('Response [_1]',$respid).'</h3>');
205: }
206: #
207: my $analysis_html;
208: my $PerformanceData = &Apache::loncoursedata::get_response_data
209: (\@Apache::lonstatistics::SelectedSections,
210: $Apache::lonstatistics::enrollment_status,
211: $resource->{'symb'},$respid);
212: if (! defined($PerformanceData) ||
213: ref($PerformanceData) ne 'ARRAY' ) {
214: $analysis_html = '<h2>'.
215: &mt('There is no submission data for this resource').
216: '</h2>';
217: $r->print($analysis_html);
218: return;
219: }
220: #
221: # This next call causes all the waiting around that people complain about
222: my ($max,$min) =
223: &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students,
224: 'Statistics',
225: 'stats_status');
226: return if ($c->aborted());
227: #
228: # Collate the data
229: my %Data;
230: foreach my $student (@$Students) {
231: my $answer = $student->{'answer'};
232: $Data{$answer}++;
233: }
234: my @Labels = sort {$a <=> $b } keys(%Data);
235: my @PlotData = @Data{@Labels};
236: #
237: my $width = 500;
238: my $height = 100;
239: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
240: \@Labels,\@PlotData);
241: $r->print($plot);
242: return;
243: }
244:
245: sub one_dimensional_plot {
246: my ($r,$width,$height,$N,$Labels,$Data)=@_;
247: #
248: # Compute data -> image scaling factors
249: my $min = $Labels->[0];
250: my $max = $Labels->[-1];
251: if ($max == $min) {
252: $max =$min+1;
253: }
254: my $h_scale = ($width-10)/($max-$min);
255: #
256: my $max_y = 0;
257: foreach (@$Data) {
258: $max_y = $_ if ($max_y < $_);
259: }
260: my $ticscale = 5;
261: if ($max_y * $ticscale > $height/2) {
262: $ticscale = int($height/2/$max_y);
263: $ticscale = 1 if ($ticscale < 1);
264: }
265: #
266: # Create the plot
267: my $plot =
268: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
269: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
270: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
271: my $top = $height/2-$Data->[$idx]*$ticscale;
272: my $bottom = $height/2+$Data->[$idx]*$ticscale;
273: $plot .=
274: &line($xloc,$top,$xloc,$bottom,'888888',1);
275: }
276: #
277: # Put the scale on last to ensure it is on top of the data.
278: if ($min < 0 && $max > 0) {
279: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
280: my $r = 4;
281: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
282: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
283: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
284: } else {
285: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
286: }
287: $plot .= '</drawimage>';
288: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
289:
290: my $title = 'Distribution of correct answers';
291: my $result = '<table>'.
292: '<tr><td colspan="3" align="center">'.
293: '<font size="+2">'.$title.' (N='.$N.')'.
294: '</font>'.
295: '</td></tr>'.
296: '<tr>'.
297: '<td valign="center">'.$min.'</td>'.
298: '<td>'.$plotresult.'</td>'.
299: '<td valign="center">'.$max.'</td>'.
300: '</tr>'.
301: '<tr><td colspan="3" align="center">'.
302: 'Maximum Number of Coinciding Values: '.$max_y.
303: '</td></tr>'.
304: '</table>';
305: return $result;
306: }
307:
308: ##
309: ## Helper subroutines for <drawimage>.
310: ## These should probably go somewhere more suitable soon.
311: sub line {
312: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
313: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
314: }
315:
316: sub text {
317: my ($x,$y,$color,$text,$font,$direction) = @_;
318: if (! defined($font) || $font !~ /^(tiny|small|medium|large|giant)$/) {
319: $font = 'medium';
320: }
321: if (! defined($direction) || $direction ne 'vertical') {
322: $direction = '';
323: }
324: return qq{<text x="$x" y="$y" color="$color" font="$font" direction="$direction" >$text</text>};
325: }
326:
327: sub rectangle {
328: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
329: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
330: }
331:
332: sub arc {
333: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
334: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
335: }
336:
337: sub circle {
338: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
339: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
340: }
341:
342: sub build_student_data_worksheet {
343: my ($workbook,$format) = @_;
344: my $rows_output = 3;
345: my $cols_output = 0;
346: my $worksheet = $workbook->addworksheet('Student Data');
347: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
348: my @Headers = ('full name','username','domain','section',
349: "student\nnumber",'identifier');
350: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
351: my @Students = @Apache::lonstatistics::Students;
352: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
353: my %ids;
354: foreach my $row (@$studentrows) {
355: my ($mysqlid,$student) = @$row;
356: $ids{$student}=$mysqlid;
357: }
358: foreach my $student (@Students) {
359: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
360: $worksheet->write_row($rows_output++,0,
361: [$student->{'fullname'},
362: $student->{'username'},$student->{'domain'},
363: $student->{'section'},$student->{'id'},
364: $ids{$name_domain}]);
365: }
366: return $worksheet;
367: }
368:
369: #########################################################
370: #########################################################
371: ##
372: ## Radio Response Routines
373: ##
374: #########################################################
375: #########################################################
376: sub RadioResponseAnalysis {
377: my ($r,$problem,$ProblemData,$Students) = @_;
378: my ($resource,$respid) = ($problem->{'resource'},
379: $problem->{'respid'});
380: my $analysis_html;
381: my $PerformanceData = &Apache::loncoursedata::get_response_data
382: (\@Apache::lonstatistics::SelectedSections,
383: $Apache::lonstatistics::enrollment_status,
384: $resource->{'symb'},$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 = &Apache::loncoursedata::get_response_data
568: (\@Apache::lonstatistics::SelectedSections,
569: $Apache::lonstatistics::enrollment_status,
570: $resource->{'symb'},$respid);
571: if (! defined($PerformanceData) ||
572: ref($PerformanceData) ne 'ARRAY' ) {
573: $r->print('<h2>'.
574: &mt('There is no student data for this problem.').
575: '</h2>');
576: } else {
577: $r->rflush();
578: if (exists($ENV{'form.ExcelOutput'})) {
579: my $result = &OR_excel_sheet($r,$resource,
580: $PerformanceData,
581: $ProblemData);
582: $r->print($result);
583: $r->rflush();
584: } else {
585: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
586: my $analysis_html = &OR_tries_analysis($r,
587: $PerformanceData,
588: $ProblemData);
589: $r->print($analysis_html);
590: $r->rflush();
591: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
592: my $analysis_html = &OR_time_analysis($PerformanceData,
593: $ProblemData);
594: $r->print($analysis_html);
595: $r->rflush();
596: } else {
597: $r->print('<h2>'.
598: &mt('The analysis you have selected is '.
599: 'not supported at this time').
600: '</h2>');
601: }
602: }
603: }
604: }
605:
606: #########################################################
607: #
608: # Option Response: Tries Analysis
609: #
610: #########################################################
611: sub OR_tries_analysis {
612: my ($r,$PerformanceData,$ORdata) = @_;
613: my $mintries = 1;
614: my $maxtries = $ENV{'form.NumPlots'};
615: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
616: if (! defined($Concepts) ||
617: ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
618: $table = '<h3>'.
619: &mt('Not enough data for concept analysis. '.
620: 'Performing Foil Analysis').
621: '</h3>'.$table;
622: $ENV{'form.AnalyzeAs'} = 'Foils';
623: }
624: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
625: $mintries,$maxtries);
626: my $analysis = '';
627: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
628: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
629: \%ResponseData,$ORdata);
630: } else {
631: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
632: $Concepts,\%ResponseData,$ORdata);
633: }
634: $table .= $analysis;
635: return $table;
636: }
637:
638: sub OR_Tries_Foil_Analysis {
639: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
640: my %ResponseData = %$respdat;
641: #
642: # Compute the data neccessary to make the plots
643: my @PlotData;
644: foreach my $concept (@$Concepts) {
645: foreach my $foilid (@{$concept->{'foils'}}) {
646: for (my $try=$mintries;$try<=$maxtries;$try++) {
647: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
648: push(@{$PlotData[$try]->{'_correct'}},0);
649: } else {
650: push(@{$PlotData[$try]->{'_correct'}},
651: 100*$ResponseData{$foilid}->[$try]->{'_correct'}/
652: $ResponseData{$foilid}->[$try]->{'_total'});
653: }
654: foreach my $option (@{$ORdata->{'_Options'}}) {
655: push(@{$PlotData[$try]->{'_total'}},
656: $ResponseData{$foilid}->[$try]->{'_total'});
657: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
658: push (@{$PlotData[$try]->{$option}},0);
659: } else {
660: if ($ResponseData{$foilid}->[$try]->{'_total'} ==
661: $ResponseData{$foilid}->[$try]->{'_correct'}) {
662: push(@{$PlotData[$try]->{$option}},0);
663: } else {
664: push (@{$PlotData[$try]->{$option}},
665: 100 *
666: $ResponseData{$foilid}->[$try]->{$option} /
667: ($ResponseData{$foilid}->[$try]->{'_total'}
668: -
669: $ResponseData{$foilid}->[$try]->{'_correct'}
670: ));
671: }
672: }
673: } # End of foreach my $option
674: }
675: } # End of foreach my $foilid
676: } # End of foreach my $concept
677: #
678: # Build a table for the plots
679: my $analysis_html = "<table>\n";
680: my $optionkey = &build_option_index($ORdata);
681: for (my $try=$mintries;$try<=$maxtries;$try++) {
682: my $count = $ResponseData{'_total'}->[$try];
683: my $title = 'Submission '.$try.' (N='.$count.')';
684: my @Datasets;
685: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
686: next if (! exists($PlotData[$try]->{$option}));
687: push(@Datasets,$PlotData[$try]->{$option});
688: }
689: #
690: # Put a blank in the data set between concepts
691: for (my $set =0;$set<=$#Datasets;$set++) {
692: my @Data = @{$Datasets[$set]};
693: my $idx = 0;
694: foreach my $concept (@{$Concepts}) {
695: foreach my $foilid (@{$concept->{'foils'}}) {
696: $Datasets[$set]->[$idx++]=shift(@Data);
697: }
698: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
699: $Datasets[$set]->[$idx++] = 0;
700: }
701: }
702: }
703: #
704: # Set up the labels needed for the bar graph
705: my @Labels;
706: my $idx = 1;
707: foreach my $concept (@{$Concepts}) {
708: foreach my $foilid (@{$concept->{'foils'}}) {
709: push(@Labels,$idx++);
710: }
711: push(@Labels,'');
712: }
713: #
714: my $correctgraph = &Apache::loncommon::DrawBarGraph
715: ($title,'Foil Number','Percent Correct',
716: 100,$plotcolors,\@Labels,$Datasets[0]);
717: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
718:
719: #
720: #
721: next if (! defined($Datasets[0]));
722: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
723: $Datasets[0]->[$i]=0;
724: }
725: $count = $ResponseData{'_total'}->[$try] -
726: $ResponseData{'_correct'}->[$try];
727: $title = 'Submission '.$try.' (N='.$count.')';
728: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
729: ($title,'Foil Number','% Option Chosen Incorrectly',
730: 100,$plotcolors,\@Labels,@Datasets);
731: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
732: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
733: }
734: $analysis_html .= "</table>\n";
735: return $analysis_html;
736: }
737:
738: sub OR_Tries_Concept_Analysis {
739: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
740: my %ResponseData = %$respdat;
741: my $analysis_html = "<table>\n";
742: #
743: # Compute the data neccessary to make the plots
744: my @PlotData;
745: # Concept analysis
746: #
747: # Note: we do not bother with characterizing the students incorrect
748: # answers at the concept level because an incorrect answer for one foil
749: # may be a correct answer for another foil.
750: my %ConceptData;
751: foreach my $concept (@{$Concepts}) {
752: for (my $i=$mintries;$i<=$maxtries;$i++) {
753: #
754: # Gather the per-attempt data
755: my $cdata = $ConceptData{$concept}->[$i];
756: foreach my $foilid (@{$concept->{'foils'}}) {
757: $cdata->{'_correct'} +=
758: $ResponseData{$foilid}->[$i]->{'_correct'};
759: $cdata->{'_total'} +=
760: $ResponseData{$foilid}->[$i]->{'_total'};
761: }
762: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
763: if ($cdata->{'_total'} == 0) {
764: push (@{$PlotData[$i]->{'_correct'}},0);
765: } else {
766: push (@{$PlotData[$i]->{'_correct'}},
767: 100*$cdata->{'_correct'}/$cdata->{'_total'});
768: }
769: }
770: }
771: # Build a table for the plots
772: for (my $i=$mintries;$i<=$maxtries;$i++) {
773: my $minstu = $PlotData[$i]->{'_total'}->[0];
774: my $maxstu = $PlotData[$i]->{'_total'}->[0];
775: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
776: if ($minstu > $count) {
777: $minstu = $count;
778: }
779: if ($maxstu < $count) {
780: $maxstu = $count;
781: }
782: }
783: $maxstu = 0 if (! defined($maxstu));
784: $minstu = 0 if (! defined($minstu));
785: my $title;
786: my $count = $ResponseData{'_total'}->[$i];
787: if ($count == 0) {
788: $count = 'no submissions';
789: } elsif ($count == 1) {
790: $count = '1 submission';
791: } else {
792: $count = $count.' submissions';
793: }
794: $title = 'Attempt '.$i.', '.$count;
795: my $graphlink = &Apache::loncommon::DrawBarGraph
796: ($title,'Concept Number','Percent Correct',
797: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
798: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
799: }
800: $analysis_html .= "</table>\n";
801: return $analysis_html;
802: }
803:
804: sub OR_analyze_by_tries {
805: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
806: my %Trydata;
807: $mintries = 1 if (! defined($mintries) || $mintries < 1);
808: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
809: foreach my $row (@$PerformanceData) {
810: next if (! defined($row));
811: my $tries = &get_tries_from_row($row);
812: my %Row = &Process_OR_Row($row);
813: next if (! %Row);
814: while (my ($foilid,$href) = each(%Row)) {
815: if (! ref($href)) {
816: $Trydata{$foilid}->[$tries] += $href;
817: next;
818: }
819: while (my ($option,$value) = each(%$href)) {
820: $Trydata{$foilid}->[$tries]->{$option}+=$value;
821: }
822: }
823: }
824: return %Trydata;
825: }
826:
827: #########################################################
828: #
829: # Option Response: Time Analysis
830: #
831: #########################################################
832: sub OR_time_analysis {
833: my ($PerformanceData,$ORdata) = @_;
834: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
835: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
836: $table = '<h3>'.
837: &mt('Not enough data for concept analysis. '.
838: 'Performing Foil Analysis').
839: '</h3>'.$table;
840: $ENV{'form.AnalyzeAs'} = 'Foils';
841: }
842: my $num_plots = $ENV{'form.NumPlots'};
843: my $num_data = scalar(@$PerformanceData)-1;
844: my $percent = sprintf('%2f',100/$num_plots);
845: #
846: $table .= "<table>\n";
847: for (my $i=0;$i<$num_plots;$i++) {
848: ##
849: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
850: ('startdate_'.$i);
851: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
852: ('enddate_'.$i);
853: if (! defined($starttime) || ! defined($endtime)) {
854: my $sec_in_day = 86400;
855: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
856: my ($sday,$smon,$syear);
857: (undef,undef,undef,$sday,$smon,$syear) =
858: localtime($last_sub_time - $sec_in_day*$i);
859: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
860: $endtime = $starttime + $sec_in_day;
861: if ($i == ($num_plots -1 )) {
862: $starttime = &get_time_from_row($PerformanceData->[0]);
863: }
864: }
865: my $startdateform = &Apache::lonhtmlcommon::date_setter
866: ('Statistics','startdate_'.$i,$starttime);
867: my $enddateform = &Apache::lonhtmlcommon::date_setter
868: ('Statistics','enddate_'.$i,$endtime);
869: #
870: my $begin_index;
871: my $end_index;
872: my $j;
873: while (++$j < scalar(@$PerformanceData)) {
874: last if (&get_time_from_row($PerformanceData->[$j])
875: > $starttime);
876: }
877: $begin_index = $j;
878: while (++$j < scalar(@$PerformanceData)) {
879: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
880: }
881: $end_index = $j;
882: ##
883: my $interval = {
884: begin_index => $begin_index,
885: end_index => $end_index,
886: startdateform => $startdateform,
887: enddateform => $enddateform,
888: };
889: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
890: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
891: $interval);
892: } else {
893: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
894: $Concepts,$interval);
895: }
896: }
897: #
898: return $table;
899: }
900:
901: sub OR_Foil_Time_Analysis {
902: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
903: my $analysis_html;
904: my $foilkey = &build_option_index($ORdata);
905: my ($begin_index,$end_index) = ($interval->{'begin_index'},
906: $interval->{'end_index'});
907: my %TimeData;
908: #
909: # Compute the number getting the foils correct or incorrects
910: for (my $j=$begin_index;$j<=$end_index;$j++) {
911: my $row = $PerformanceData->[$j];
912: next if (! defined($row));
913: my %Row = &Process_OR_Row($row);
914: while (my ($foilid,$href) = each(%Row)) {
915: if (! ref($href)) {
916: $TimeData{$foilid} += $href;
917: next;
918: }
919: while (my ($option,$value) = each(%$href)) {
920: $TimeData{$foilid}->{$option}+=$value;
921: }
922: }
923: }
924: my @Plotdata;
925: foreach my $foil (@$Foils) {
926: my $total = $TimeData{$foil}->{'_total'};
927: if ($total == 0) {
928: push(@{$Plotdata[0]},0);
929: } else {
930: push(@{$Plotdata[0]},
931: 100 * $TimeData{$foil}->{'_correct'} / $total);
932: }
933: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
934: my $optionidx = 1;
935: foreach my $option (@{$ORdata->{'_Options'}}) {
936: if ($total_incorrect == 0) {
937: push(@{$Plotdata[$optionidx]},0);
938: } else {
939: push(@{$Plotdata[$optionidx]},
940: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
941: }
942: } continue {
943: $optionidx++;
944: }
945: }
946: #
947: # Create the plot
948: my $count = $end_index-$begin_index;
949: my $title;
950: if ($count == 0) {
951: $title = 'no submissions';
952: } elsif ($count == 1) {
953: $title = 'one submission';
954: } else {
955: $title = $count.' submissions';
956: }
957: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
958: 'Foil Number',
959: 'Percent Correct',
960: 100,
961: $plotcolors,
962: undef,
963: $Plotdata[0]);
964: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
965: $Plotdata[0]->[$j]=0;
966: }
967: $count = $end_index-$begin_index-$TimeData{'_correct'};
968: if ($count == 0) {
969: $title = 'no submissions';
970: } elsif ($count == 1) {
971: $title = 'one submission';
972: } else {
973: $title = $count.' submissions';
974: }
975: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
976: 'Foil Number',
977: 'Incorrect Option Choice',
978: 100,
979: $plotcolors,
980: undef,
981: @Plotdata);
982: $analysis_html.='<tr>'.
983: '<td>'.$correctplot.'</td>'.
984: '<td>'.$incorrectplot.'</td>'.
985: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
986: $analysis_html.= '<tr>'.'<td colspan="3">'.
987: '<b>Start Time</b>:'.
988: ' '.$interval->{'startdateform'}.'<br />'.
989: '<b>End Time</b> : '.
990: ' '.$interval->{'enddateform'}.'<br />'.
991: # '<b>Plot Title</b> :'.
992: # (" "x3).$interval->{'titleform'}.
993: '</td>'.
994: "</tr>\n";
995: return $analysis_html;
996: }
997:
998: sub OR_Concept_Time_Analysis {
999: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
1000: my $analysis_html;
1001: ##
1002: ## Determine starttime, endtime, startindex, endindex
1003: my ($begin_index,$end_index) = ($interval->{'begin_index'},
1004: $interval->{'end_index'});
1005: my %TimeData;
1006: #
1007: # Compute the number getting the foils correct or incorrects
1008: for (my $j=$begin_index;$j<=$end_index;$j++) {
1009: my $row = $PerformanceData->[$j];
1010: next if (! defined($row));
1011: my %Row = &Process_OR_Row($row);
1012: while (my ($foilid,$href) = each(%Row)) {
1013: if (! ref($href)) {
1014: $TimeData{$foilid} += $href;
1015: next;
1016: }
1017: while (my ($option,$value) = each(%$href)) {
1018: $TimeData{$foilid}->{$option}+=$value;
1019: }
1020: }
1021: }
1022: #
1023: # Put the data in plottable form
1024: my @Plotdata;
1025: foreach my $concept (@$Concepts) {
1026: my ($total,$correct);
1027: foreach my $foil (@{$concept->{'foils'}}) {
1028: $total += $TimeData{$foil}->{'_total'};
1029: $correct += $TimeData{$foil}->{'_correct'};
1030: }
1031: if ($total == 0) {
1032: push(@Plotdata,0);
1033: } else {
1034: push(@Plotdata,100 * $correct / $total);
1035: }
1036: }
1037: #
1038: # Create the plot
1039: my $title = ($end_index - $begin_index).' submissions';
1040: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1041: 'Concept Number',
1042: 'Percent Correct',
1043: 100,
1044: $plotcolors,
1045: undef,
1046: \@Plotdata);
1047: $analysis_html.='<tr>'.
1048: '<td>'.$correctplot.'</td>'.
1049: '<td align="left" valign="top">'.
1050: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
1051: '<b>End Time</b> : '.
1052: ' '.$interval->{'enddateform'}.'<br />'.
1053: # '<b>Plot Title</b> :'.(" "x3).
1054: # $interval->{'titleform'}.
1055: '</td>'.
1056: "</tr>\n";
1057: return $analysis_html;
1058: }
1059:
1060: #########################################################
1061: #########################################################
1062: ##
1063: ## Excel output
1064: ##
1065: #########################################################
1066: #########################################################
1067: sub OR_excel_sheet {
1068: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1069: my $response = '';
1070: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1071: #
1072: # Create excel worksheet
1073: my $filename = '/prtspool/'.
1074: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1075: time.'_'.rand(1000000000).'.xls';
1076: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1077: if (! defined($workbook)) {
1078: $r->log_error("Error creating excel spreadsheet $filename: $!");
1079: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1080: "This error has been logged. ".
1081: "Please alert your LON-CAPA administrator").
1082: '</p>');
1083: return undef;
1084: }
1085: #
1086: $workbook->set_tempdir('/home/httpd/perl/tmp');
1087: my $format = &Apache::loncommon::define_excel_formats($workbook);
1088: #
1089: # Create and populate main worksheets
1090: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1091: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1092: my $response_data_sheet = $workbook->addworksheet('Response Data');
1093: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1094: $response_data_sheet) {
1095: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1096: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1097: }
1098: #
1099: my $result;
1100: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1101: $Concepts,$ORdata);
1102: if ($result ne 'okay') {
1103: # Do something useful
1104: }
1105: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1106: $PerformanceData,$Foils,
1107: $ORdata);
1108: if ($result ne 'okay') {
1109: # Do something useful
1110: }
1111: $response_data_sheet->activate();
1112: #
1113: # Close the excel file
1114: $workbook->close();
1115: #
1116: # Write a link to allow them to download it
1117: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1118: '<p><a href="'.$filename.'">'.
1119: &mt('Your Excel spreadsheet.').
1120: '</a></p>'."\n";
1121: return $result;
1122: }
1123:
1124: sub OR_build_problem_data_worksheet {
1125: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1126: my $rows_output = 3;
1127: my $cols_output = 0;
1128: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1129: ##
1130: ##
1131: my @Headers;
1132: if (@$Concepts > 1) {
1133: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1134: 'Foil Name','Foil Text','Correct value');
1135: } else {
1136: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1137: }
1138: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1139: my %Foildata = %{$ORdata->{'_Foils'}};
1140: my $conceptindex = 1;
1141: my $foilindex = 1;
1142: foreach my $concept (@$Concepts) {
1143: my @FoilsInConcept = @{$concept->{'foils'}};
1144: my $firstfoil = shift(@FoilsInConcept);
1145: if (@$Concepts > 1) {
1146: $worksheet->write_row($rows_output++,0,
1147: [$conceptindex,
1148: $concept->{'name'},
1149: $foilindex++,
1150: $Foildata{$firstfoil}->{'name'},
1151: $Foildata{$firstfoil}->{'text'},
1152: $Foildata{$firstfoil}->{'value'},]);
1153: } else {
1154: $worksheet->write_row($rows_output++,0,
1155: [ $foilindex++,
1156: $Foildata{$firstfoil}->{'name'},
1157: $Foildata{$firstfoil}->{'text'},
1158: $Foildata{$firstfoil}->{'value'},]);
1159: }
1160: foreach my $foilid (@FoilsInConcept) {
1161: if (@$Concepts > 1) {
1162: $worksheet->write_row($rows_output++,0,
1163: ['',
1164: '',
1165: $foilindex,
1166: $Foildata{$foilid}->{'name'},
1167: $Foildata{$foilid}->{'text'},
1168: $Foildata{$foilid}->{'value'},]);
1169: } else {
1170: $worksheet->write_row($rows_output++,0,
1171: [$foilindex,
1172: $Foildata{$foilid}->{'name'},
1173: $Foildata{$foilid}->{'text'},
1174: $Foildata{$foilid}->{'value'},]);
1175: }
1176: } continue {
1177: $foilindex++;
1178: }
1179: } continue {
1180: $conceptindex++;
1181: }
1182: $rows_output++;
1183: $rows_output++;
1184: ##
1185: ## Option data output
1186: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1187: foreach my $string (@{$ORdata->{'_Options'}}) {
1188: $worksheet->write($rows_output++,0,$string);
1189: }
1190: return 'okay';
1191: }
1192:
1193: sub OR_build_response_data_worksheet {
1194: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1195: my $rows_output = 3;
1196: my $cols_output = 0;
1197: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1198: $worksheet->set_column(1,1,20);
1199: $worksheet->set_column(2,2,13);
1200: my @Headers = ('identifier','time','award detail','attempt');
1201: foreach my $foil (@$Foils) {
1202: push (@Headers,$foil.' submission');
1203: push (@Headers,$foil.' grading');
1204: }
1205: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1206: #
1207: foreach my $row (@$PerformanceData) {
1208: next if (! defined($row));
1209: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1210: my @Foilgrades = split('&',$grading);
1211: my @Foilsubs = split('&',$submission);
1212: my %ResponseData;
1213: for (my $j=0;$j<=$#Foilgrades;$j++) {
1214: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1215: my (undef,$submission) = split('=',$Foilsubs[$j]);
1216: $submission = &Apache::lonnet::unescape($submission);
1217: $ResponseData{$foilid.' submission'}=$submission;
1218: $ResponseData{$foilid.' award'}=$correct;
1219: }
1220: $worksheet->write($rows_output,$cols_output++,$student);
1221: $worksheet->write($rows_output,$cols_output++,
1222: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1223: $worksheet->write($rows_output,$cols_output++,$award);
1224: $worksheet->write($rows_output,$cols_output++,$tries);
1225: foreach my $foilid (@$Foils) {
1226: $worksheet->write($rows_output,$cols_output++,
1227: $ResponseData{$foilid.' submission'});
1228: $worksheet->write($rows_output,$cols_output++,
1229: $ResponseData{$foilid.' award'});
1230: }
1231: $rows_output++;
1232: $cols_output = 0;
1233: }
1234: return;
1235: }
1236:
1237: sub build_foil_index {
1238: my ($ORdata) = @_;
1239: return if (! exists($ORdata->{'_Foils'}));
1240: my %Foildata = %{$ORdata->{'_Foils'}};
1241: my @Foils = sort(keys(%Foildata));
1242: my %Concepts;
1243: foreach my $foilid (@Foils) {
1244: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1245: $foilid);
1246: }
1247: undef(@Foils);
1248: # Having gathered the concept information in a hash, we now translate it
1249: # into an array because we need to be consistent about order.
1250: # Also put the foils in order, too.
1251: my $sortfunction = sub {
1252: my %Numbers = (one => 1,
1253: two => 2,
1254: three => 3,
1255: four => 4,
1256: five => 5,
1257: six => 6,
1258: seven => 7,
1259: eight => 8,
1260: nine => 9,
1261: ten => 10,);
1262: my $a1 = lc($a);
1263: my $b1 = lc($b);
1264: if (exists($Numbers{$a1})) {
1265: $a1 = $Numbers{$a1};
1266: }
1267: if (exists($Numbers{$b1})) {
1268: $b1 = $Numbers{$b1};
1269: }
1270: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1271: return $a1 <=> $b1;
1272: } else {
1273: return $a1 cmp $b1;
1274: }
1275: };
1276: my @Concepts;
1277: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1278: if (! defined($Concepts{$concept})) {
1279: $Concepts{$concept}=[];
1280: # next;
1281: }
1282: push(@Concepts,{ name => $concept,
1283: foils => [@{$Concepts{$concept}}]});
1284: push(@Foils,(@{$Concepts{$concept}}));
1285: }
1286: #
1287: # Build up the table of row labels.
1288: my $table = '<table border="1" >'."\n";
1289: if (@Concepts > 1) {
1290: $table .= '<tr>'.
1291: '<th>'.&mt('Concept Number').'</th>'.
1292: '<th>'.&mt('Concept').'</th>'.
1293: '<th>'.&mt('Foil Number').'</th>'.
1294: '<th>'.&mt('Foil Name').'</th>'.
1295: '<th>'.&mt('Foil Text').'</th>'.
1296: '<th>'.&mt('Correct Value').'</th>'.
1297: "</tr>\n";
1298: } else {
1299: $table .= '<tr>'.
1300: '<th>'.&mt('Foil Number').'</th>'.
1301: '<th>'.&mt('Foil Name').'</th>'.
1302: '<th>'.&mt('Foil Text').'</th>'.
1303: '<th>'.&mt('Correct Value').'</th>'.
1304: "</tr>\n";
1305: }
1306: my $conceptindex = 1;
1307: my $foilindex = 1;
1308: foreach my $concept (@Concepts) {
1309: my @FoilsInConcept = @{$concept->{'foils'}};
1310: my $firstfoil = shift(@FoilsInConcept);
1311: if (@Concepts > 1) {
1312: $table .= '<tr>'.
1313: '<td>'.$conceptindex.'</td>'.
1314: '<td>'.&HTML::Entities::encode($concept->{'name'},'<>&"').'</td>'.
1315: '<td>'.$foilindex++.'</td>'.
1316: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1317: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1318: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1319: "</tr>\n";
1320: } else {
1321: $table .= '<tr>'.
1322: '<td>'.$foilindex++.'</td>'.
1323: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'},'<>&"').'</td>'.
1324: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1325: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'},'<>&"').'</td>'.
1326: "</tr>\n";
1327: }
1328: foreach my $foilid (@FoilsInConcept) {
1329: if (@Concepts > 1) {
1330: $table .= '<tr>'.
1331: '<td></td>'.
1332: '<td></td>'.
1333: '<td>'.$foilindex.'</td>'.
1334: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1335: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1336: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1337: "</tr>\n";
1338: } else {
1339: $table .= '<tr>'.
1340: '<td>'.$foilindex.'</td>'.
1341: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'},'<>&"').'</td>'.
1342: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1343: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'},'<>&"').'</td>'.
1344: "</tr>\n";
1345: }
1346: } continue {
1347: $foilindex++;
1348: }
1349: } continue {
1350: $conceptindex++;
1351: }
1352: $table .= "</table>\n";
1353: #
1354: # Build option index with color stuff
1355: return ($table,\@Foils,\@Concepts);
1356: }
1357:
1358: sub build_option_index {
1359: my ($ORdata)= @_;
1360: my $table = "<table>\n";
1361: my $optionindex = 0;
1362: my @Rows;
1363: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1364: push (@Rows,
1365: '<tr>'.
1366: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1367: (' 'x4).'</td>'.
1368: '<td>'.&HTML::Entities::encode($option,'<>&"').'</td>'.
1369: "</tr>\n");
1370: }
1371: shift(@Rows); # Throw away 'correct option chosen' color
1372: $table .= join('',reverse(@Rows));
1373: $table .= "</table>\n";
1374: }
1375:
1376: #########################################################
1377: #########################################################
1378: ##
1379: ## Generic Interface Routines
1380: ##
1381: #########################################################
1382: #########################################################
1383: sub CreateInterface {
1384: ##
1385: ## Environment variable initialization
1386: if (! exists$ENV{'form.AnalyzeOver'}) {
1387: $ENV{'form.AnalyzeOver'} = 'Tries';
1388: }
1389: ##
1390: ## Build the menu
1391: my $Str = '';
1392: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1393: (undef,'Detailed Problem Analysis');
1394: $Str .= '<table cellspacing="5">'."\n";
1395: $Str .= '<tr>';
1396: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1397: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1398: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1399: $Str .= '<td align="center"> </td>';
1400: $Str .= '</tr>'."\n";
1401: ##
1402: ##
1403: $Str .= '<tr><td align="center">'."\n";
1404: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1405: $Str .= '</td>';
1406: #
1407: $Str .= '<td align="center">';
1408: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1409: $Str .= '</td>';
1410: #
1411: # $Str .= '<td align="center">';
1412: my $only_seq_with_assessments = sub {
1413: my $s=shift;
1414: if ($s->{'num_assess'} < 1) {
1415: return 0;
1416: } else {
1417: return 1;
1418: }
1419: };
1420: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1421: $only_seq_with_assessments);
1422: ##
1423: ##
1424: $Str .= '<td>';
1425: { # These braces are here to organize the code, not scope it.
1426: {
1427: $Str .= '<nobr>'.&mt('Analyze Over ');
1428: $Str .= &Apache::loncommon::help_open_topic
1429: ('Analysis_Analyze_Over');
1430: $Str .='<select name="AnalyzeOver" >';
1431: $Str .= '<option value="Tries" ';
1432: if (! exists($ENV{'form.AnalyzeOver'}) ||
1433: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1434: # Default to Tries
1435: $Str .= ' selected ';
1436: }
1437: $Str .= '>'.&mt('Tries').'</option>';
1438: $Str .= '<option value="Time" ';
1439: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1440: $Str .= '>'.&mt('Time').'</option>';
1441: $Str .= '</select>';
1442: $Str .= '</nobr><br />';
1443: }
1444: {
1445: $Str .= '<nobr>'.&mt('Analyze as ');
1446: $Str .= &Apache::loncommon::help_open_topic
1447: ('Analysis_Analyze_as');
1448: $Str .='<select name="AnalyzeAs" >';
1449: $Str .= '<option value="Concepts" ';
1450: if (! exists($ENV{'form.AnalyzeAs'}) ||
1451: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1452: # Default to Concepts
1453: $Str .= ' selected ';
1454: }
1455: $Str .= '>'.&mt('Concepts').'</option>';
1456: $Str .= '<option value="Foils" ';
1457: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1458: $Str .= '>'.&mt('Foils').'</option>';
1459: $Str .= '</select></nobr><br />';
1460: }
1461: {
1462: $Str .= '<nobr>'.&mt('Number of Plots:');
1463: $Str .= &Apache::loncommon::help_open_topic
1464: ('Analysis_num_plots');
1465: $Str .= '<select name="NumPlots">';
1466: if (! exists($ENV{'form.NumPlots'})
1467: || $ENV{'form.NumPlots'} < 1
1468: || $ENV{'form.NumPlots'} > 20) {
1469: $ENV{'form.NumPlots'} = 5;
1470: }
1471: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1472: $Str .= '<option value="'.$i.'" ';
1473: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1474: $Str .= '>'.$i.'</option>';
1475: }
1476: $Str .= '</select></nobr><br />';
1477: }
1478: {
1479: $Str .= '<nobr>'.&mt('Status: [_1]',
1480: '<input type="text" '.
1481: 'name="stats_status" size="60" value="" />'
1482: ).
1483: '</nobr><br />';
1484: }
1485: }
1486: $Str .= '</td>';
1487: ##
1488: ##
1489: $Str .= '</tr>'."\n";
1490: $Str .= '</table>'."\n";
1491: return $Str;
1492: }
1493:
1494: #########################################################
1495: #########################################################
1496: ##
1497: ## Misc Option Response functions
1498: ##
1499: #########################################################
1500: #########################################################
1501: sub get_time_from_row {
1502: my ($row) = @_;
1503: if (ref($row)) {
1504: return $row->[&Apache::loncoursedata::RD_timestamp()];
1505: }
1506: return undef;
1507: }
1508:
1509: sub get_tries_from_row {
1510: my ($row) = @_;
1511: if (ref($row)) {
1512: return $row->[&Apache::loncoursedata::RD_tries()];
1513: }
1514: return undef;
1515: }
1516:
1517: sub hashify_attempt {
1518: my ($row) = @_;
1519: my %attempt;
1520: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1521: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1522: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1523: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1524: return %attempt;
1525: }
1526:
1527: sub Process_OR_Row {
1528: my ($row) = @_;
1529: my %RowData;
1530: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1531: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1532: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1533: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1534: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1535: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1536: return undef if ($award eq 'MISSING_ANSWER');
1537: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1538: $RowData{'_correct'} = 1;
1539: }
1540: $RowData{'_total'} = 1;
1541: my @Foilgrades = split('&',$grading);
1542: my @Foilsubs = split('&',$submission);
1543: for (my $j=0;$j<=$#Foilgrades;$j++) {
1544: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1545: $foilid = &Apache::lonnet::unescape($foilid);
1546: my (undef,$submission) = split('=',$Foilsubs[$j]);
1547: if ($correct) {
1548: $RowData{$foilid}->{'_correct'}++;
1549: } else {
1550: $submission = &Apache::lonnet::unescape($submission);
1551: $RowData{$foilid}->{$submission}++;
1552: }
1553: $RowData{$foilid}->{'_total'}++;
1554: }
1555: return %RowData;
1556: }
1557:
1558: 1;
1559:
1560: __END__
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