1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.81 2004/03/16 16:41:26 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) = &Apache::lonstathelpers::GetStudentAnswers($r,$problem,
209: $Students);
210: return if ($c->aborted());
211: #
212: # Collate the data
213: my %Data;
214: foreach my $student (@$Students) {
215: my $answer = $student->{'answer'};
216: $Data{$answer}++;
217: }
218: my @Labels = sort {$a <=> $b } keys(%Data);
219: my @PlotData = @Data{@Labels};
220: #
221: my $width = 500;
222: my $height = 100;
223: my $plot = &one_dimensional_plot($r,500,100,scalar(@$Students),
224: \@Labels,\@PlotData);
225: $r->print($plot);
226: return;
227: }
228:
229: sub one_dimensional_plot {
230: my ($r,$width,$height,$N,$Labels,$Data)=@_;
231: #
232: # Compute data -> image scaling factors
233: my $min = $Labels->[0];
234: my $max = $Labels->[-1];
235: my $h_scale = ($width-10)/($max-$min);
236: #
237: my $max_y = 0;
238: foreach (@$Data) {
239: $max_y = $_ if ($max_y < $_);
240: }
241: my $ticscale = 5;
242: if ($max_y * $ticscale > $height/2) {
243: $ticscale = int($height/2/$max_y);
244: $ticscale = 1 if ($ticscale < 1);
245: }
246: #
247: # Create the plot
248: my $plot =
249: qq{<drawimage width="$width" height="$height" bgcolor="transparent" >};
250: for (my $idx=0;$idx<scalar(@$Labels);$idx++) {
251: my $xloc = 5+$h_scale*($Labels->[$idx] - $min);
252: my $top = $height/2-$Data->[$idx]*$ticscale;
253: my $bottom = $height/2+$Data->[$idx]*$ticscale;
254: $plot .=
255: &line($xloc,$top,$xloc,$bottom,'888888',1);
256: }
257: #
258: # Put the scale on last to ensure it is on top of the data.
259: if ($min < 0 && $max > 0) {
260: my $circle_x = 5+$h_scale*abs($min); # '0' in data coordinates
261: my $r = 4;
262: $plot .= &line(5,$height/2,$circle_x-$r,$height/2,'000000',1);
263: $plot .= &circle($circle_x,$height/2,$r+1,'000000');
264: $plot .= &line($circle_x+$r,$height/2,$width-5,$height/2,'000000',1);
265: } else {
266: $plot .= &line(5,$height/2,$width-5,$height/2,'000000',1);
267: }
268: $plot .= '</drawimage>';
269: my $plotresult = &Apache::lonxml::xmlparse($r,'web',$plot);
270:
271: my $title = 'Distribution of correct answers';
272: my $result = '<table>'.
273: '<tr><td colspan="3" align="center">'.
274: '<font size="+2">'.$title.' (N='.$N.')'.
275: '</font>'.
276: '</td></tr>'.
277: '<tr>'.
278: '<td valign="center">'.$min.'</td>'.
279: '<td>'.$plotresult.'</td>'.
280: '<td valign="center">'.$max.'</td>'.
281: '</tr>'.
282: '<tr><td colspan="3" align="center">'.
283: 'Maximum Number of Coinciding Values: '.$max_y.
284: '</td></tr>'.
285: '</table>';
286: return $result;
287: }
288:
289: ##
290: ## Helper subroutines for <drawimage>.
291: ## These should probably go somewhere more suitable soon.
292: sub line {
293: my ($x1,$y1,$x2,$y2,$color,$thickness) = @_;
294: return qq{<line x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" />$/};
295: }
296:
297: sub rectangle {
298: my ($x1,$y1,$x2,$y2,$color,$thickness,$filled) = @_;
299: return qq{<rectangle x1="$x1" y1="$y1" x2="$x2" y2="$y2" color="$color" thickness="$thickness" filled="$filled" />};
300: }
301:
302: sub arc {
303: my ($x,$y,$width,$height,$start,$end,$color,$thickness,$filled)=@_;
304: return qq{<arc x="$x" y="$y" width="$width" height="$height" start="$start" end="$end" color="$color" thickness="$thickness" filled="$filled" />};
305: }
306:
307: sub circle {
308: my ($x,$y,$radius,$color,$thickness,$filled)=@_;
309: return &arc($x,$y,$radius,$radius,0,360,$color,$thickness,$filled);
310: }
311:
312: sub build_student_data_worksheet {
313: my ($workbook,$format) = @_;
314: my $rows_output = 3;
315: my $cols_output = 0;
316: my $worksheet = $workbook->addworksheet('Student Data');
317: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
318: my @Headers = ('full name','username','domain','section',
319: "student\nnumber",'identifier');
320: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
321: my @Students = @Apache::lonstatistics::Students;
322: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
323: my %ids;
324: foreach my $row (@$studentrows) {
325: my ($mysqlid,$student) = @$row;
326: $ids{$student}=$mysqlid;
327: }
328: foreach my $student (@Students) {
329: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
330: $worksheet->write_row($rows_output++,0,
331: [$student->{'fullname'},
332: $student->{'username'},$student->{'domain'},
333: $student->{'section'},$student->{'id'},
334: $ids{$name_domain}]);
335: }
336: return $worksheet;
337: }
338:
339: #########################################################
340: #########################################################
341: ##
342: ## Radio Response Routines
343: ##
344: #########################################################
345: #########################################################
346: sub RadioResponseAnalysis {
347: my ($r,$problem,$ProblemData,$Students) = @_;
348: my ($resource,$respid) = ($problem->{'resource'},
349: $problem->{'respid'});
350: my $analysis_html;
351: my $PerformanceData =
352: &Apache::loncoursedata::get_response_data
353: ($Students,$resource->{'symb'},$respid);
354: if (! defined($PerformanceData) ||
355: ref($PerformanceData) ne 'ARRAY' ) {
356: $analysis_html = '<h2>'.
357: &mt('There is no submission data for this resource').
358: '</h2>';
359: $r->print($analysis_html);
360: return;
361: }
362: if (exists($ENV{'form.ExcelOutput'})) {
363: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
364: $PerformanceData,$ProblemData);
365: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
366: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
367: $PerformanceData,$ProblemData);
368: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
369: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
370: $PerformanceData,$ProblemData);
371: } else {
372: $analysis_html .= '<h2>'.
373: &mt('The analysis you have selected is not supported at this time').
374: '</h2>';
375: }
376: $r->print($analysis_html);
377: }
378:
379: sub RR_Excel_output {
380: my ($r,$PerformanceData,$ProblemData) = @_;
381: return '<h1>No!</h1>';
382: }
383:
384: sub RR_Tries_Analysis {
385: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
386: my $analysis_html;
387: my $mintries = 1;
388: my $maxtries = $ENV{'form.NumPlots'};
389: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
390: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
391: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
392: $table = '<h3>'.
393: &mt('Not enough data for concept analysis. '.
394: 'Performing Foil Analysis').
395: '</h3>'.$table;
396: $ENV{'form.AnalyzeAs'} = 'Foils';
397: }
398: $analysis_html .= $table;
399: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
400: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
401: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
402: \@TryData,$ProblemData);
403: # } else {
404: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
405: # $Concepts,
406: # \@TryData,
407: # $ProblemData);
408: # }
409: return $analysis_html;
410: }
411:
412: sub RR_tries_data_analysis {
413: my ($r,$Attempt_data) = @_;
414: my @TryData;
415: foreach my $attempt (@$Attempt_data) {
416: my %Attempt = &hashify_attempt($attempt);
417: my ($answer,undef) = split('=',$Attempt{'submission'});
418: $TryData[$Attempt{'tries'}]->{$answer}++;
419: }
420: return @TryData;
421: }
422:
423: sub RR_Time_Analysis {
424: my ($r,$PerformanceData,$ProblemData) = @_;
425: my $html;
426: return $html;
427: }
428:
429: sub RR_Tries_Foil_Analysis {
430: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
431: my $html;
432: #
433: # Compute the data neccessary to make the plots
434: for (my $try=$min;$try<=$max;$try++) {
435: my @PlotData_Correct;
436: my @PlotData_Incorrect;
437: next if ($try > scalar(@{$TryData}));
438: next if (! defined($TryData->[$try]));
439: my %DataSet = %{$TryData->[$try]};
440: my $total = 0;
441: foreach my $foilid (@$Foils) {
442: $total += $DataSet{$foilid};
443: }
444: foreach my $foilid (@$Foils) {
445: if ($total == 0) {
446: push (@PlotData_Correct,0);
447: push (@PlotData_Incorrect,0);
448: } else {
449: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
450: push (@PlotData_Correct,
451: int(100*$DataSet{$foilid}/$total));
452: push (@PlotData_Incorrect,0);
453: } else {
454: push (@PlotData_Correct,0);
455: push (@PlotData_Incorrect,
456: int(100*$DataSet{$foilid}/$total));
457: }
458: }
459: }
460: my $title='Attempt '.$try;
461: my $xlabel = $total.' Submissions';
462: $html.= &Apache::loncommon::DrawBarGraph($title,
463: $xlabel,
464: 'Percent Choosing',
465: 100,
466: ['#33ff00','#ff3300'],
467: undef,
468: \@PlotData_Correct,
469: \@PlotData_Incorrect);
470: }
471: return $html;
472: }
473:
474: sub RR_Tries_Concept_Analysis {
475: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
476: my $html;
477: return $html;
478: }
479:
480: sub RR_Time_Foil_Analysis {
481: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
482: my $html;
483: return $html;
484: }
485:
486: sub RR_Time_Concept_Analysis {
487: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
488: my $html;
489: return $html;
490: }
491:
492:
493: sub get_Radio_problem_data {
494: my ($url) = @_;
495: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
496: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
497: my %Answer = &Apache::lonnet::str2hash($Answ);
498: my %Partdata;
499: foreach my $part (@{$Answer{'parts'}}) {
500: while (my($key,$value) = each(%Answer)) {
501: # if (ref($value) eq 'ARRAY') {
502: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
503: # } else {
504: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
505: # }
506: next if ($key !~ /^$part/);
507: $key =~ s/^$part\.//;
508: if ($key eq 'foils') {
509: $Partdata{$part}->{'_Foils'}=$value;
510: } elsif ($key eq 'options') {
511: $Partdata{$part}->{'_Options'}=$value;
512: } elsif ($key eq 'shown') {
513: $Partdata{$part}->{'_Shown'}=$value;
514: } elsif ($key =~ /^foil.value.(.*)$/) {
515: $Partdata{$part}->{$1}->{'value'}=$value;
516: } elsif ($key =~ /^foil.text.(.*)$/) {
517: $Partdata{$part}->{$1}->{'text'}=$value;
518: }
519: }
520: }
521: return %Partdata;
522: }
523:
524: #########################################################
525: #########################################################
526: ##
527: ## Option Response Routines
528: ##
529: #########################################################
530: #########################################################
531: sub OptionResponseAnalysis {
532: my ($r,$problem,$ProblemData,$Students) = @_;
533: my ($resource,$respid) = ($problem->{'resource'},
534: $problem->{'respid'});
535: # Note: part data is not needed.
536: my $PerformanceData =
537: &Apache::loncoursedata::get_response_data
538: ($Students,$resource->{'symb'},$respid);
539: if (! defined($PerformanceData) ||
540: ref($PerformanceData) ne 'ARRAY' ) {
541: $r->print('<h2>'.
542: &mt('There is no student data for this problem.').
543: '</h2>');
544: } else {
545: $r->rflush();
546: if (exists($ENV{'form.ExcelOutput'})) {
547: my $result = &OR_excel_sheet($r,$resource,
548: $PerformanceData,
549: $ProblemData);
550: $r->print($result);
551: $r->rflush();
552: } else {
553: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
554: my $analysis_html = &OR_tries_analysis($r,
555: $PerformanceData,
556: $ProblemData);
557: $r->print($analysis_html);
558: $r->rflush();
559: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
560: my $analysis_html = &OR_time_analysis($PerformanceData,
561: $ProblemData);
562: $r->print($analysis_html);
563: $r->rflush();
564: } else {
565: $r->print('<h2>'.
566: &mt('The analysis you have selected is '.
567: 'not supported at this time').
568: '</h2>');
569: }
570: }
571: }
572: }
573:
574: #########################################################
575: #
576: # Option Response: Tries Analysis
577: #
578: #########################################################
579: sub OR_tries_analysis {
580: my ($r,$PerformanceData,$ORdata) = @_;
581: my $mintries = 1;
582: my $maxtries = $ENV{'form.NumPlots'};
583: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
584: if (! defined($Concepts) ||
585: ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
586: $table = '<h3>'.
587: &mt('Not enough data for concept analysis. '.
588: 'Performing Foil Analysis').
589: '</h3>'.$table;
590: $ENV{'form.AnalyzeAs'} = 'Foils';
591: }
592: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
593: $mintries,$maxtries);
594: my $analysis = '';
595: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
596: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Concepts,
597: \%ResponseData,$ORdata);
598: } else {
599: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
600: $Concepts,\%ResponseData,$ORdata);
601: }
602: $table .= $analysis;
603: return $table;
604: }
605:
606: sub OR_Tries_Foil_Analysis {
607: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
608: my %ResponseData = %$respdat;
609: #
610: # Compute the data neccessary to make the plots
611: my @PlotData;
612: foreach my $concept (@$Concepts) {
613: foreach my $foilid (@{$concept->{'foils'}}) {
614: for (my $try=$mintries;$try<=$maxtries;$try++) {
615: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
616: push(@{$PlotData[$try]->{'_correct'}},0);
617: } else {
618: push(@{$PlotData[$try]->{'_correct'}},
619: 100*$ResponseData{$foilid}->[$try]->{'_correct'}/
620: $ResponseData{$foilid}->[$try]->{'_total'});
621: }
622: foreach my $option (@{$ORdata->{'_Options'}}) {
623: push(@{$PlotData[$try]->{'_total'}},
624: $ResponseData{$foilid}->[$try]->{'_total'});
625: if ($ResponseData{$foilid}->[$try]->{'_total'} == 0) {
626: push (@{$PlotData[$try]->{$option}},0);
627: } else {
628: if ($ResponseData{$foilid}->[$try]->{'_total'} ==
629: $ResponseData{$foilid}->[$try]->{'_correct'}) {
630: push(@{$PlotData[$try]->{$option}},0);
631: } else {
632: push (@{$PlotData[$try]->{$option}},
633: 100 *
634: $ResponseData{$foilid}->[$try]->{$option} /
635: ($ResponseData{$foilid}->[$try]->{'_total'}
636: -
637: $ResponseData{$foilid}->[$try]->{'_correct'}
638: ));
639: }
640: }
641: } # End of foreach my $option
642: }
643: } # End of foreach my $foilid
644: } # End of foreach my $concept
645: #
646: # Build a table for the plots
647: my $analysis_html = "<table>\n";
648: my $optionkey = &build_option_index($ORdata);
649: for (my $try=$mintries;$try<=$maxtries;$try++) {
650: my $count = $ResponseData{'_total'}->[$try];
651: my $title = 'Submission '.$try.' (N='.$count.')';
652: my @Datasets;
653: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
654: next if (! exists($PlotData[$try]->{$option}));
655: push(@Datasets,$PlotData[$try]->{$option});
656: }
657: #
658: # Put a blank in the data set between concepts
659: for (my $set =0;$set<=$#Datasets;$set++) {
660: my @Data = @{$Datasets[$set]};
661: my $idx = 0;
662: foreach my $concept (@{$Concepts}) {
663: foreach my $foilid (@{$concept->{'foils'}}) {
664: $Datasets[$set]->[$idx++]=shift(@Data);
665: }
666: if ($concept->{'name'} ne $Concepts->[-1]->{'name'}) {
667: $Datasets[$set]->[$idx++] = 0;
668: }
669: }
670: }
671: #
672: # Set up the labels needed for the bar graph
673: my @Labels;
674: my $idx = 1;
675: foreach my $concept (@{$Concepts}) {
676: foreach my $foilid (@{$concept->{'foils'}}) {
677: push(@Labels,$idx++);
678: }
679: push(@Labels,'');
680: }
681: #
682: my $correctgraph = &Apache::loncommon::DrawBarGraph
683: ($title,'Foil Number','Percent Correct',
684: 100,$plotcolors,\@Labels,$Datasets[0]);
685: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
686:
687: #
688: #
689: next if (! defined($Datasets[0]));
690: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
691: $Datasets[0]->[$i]=0;
692: }
693: $count = $ResponseData{'_total'}->[$try] -
694: $ResponseData{'_correct'}->[$try];
695: $title = 'Submission '.$try.' (N='.$count.')';
696: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
697: ($title,'Foil Number','% Option Chosen Incorrectly',
698: 100,$plotcolors,\@Labels,@Datasets);
699: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
700: $analysis_html.= '<td>'.$optionkey."<td></tr>\n";
701: }
702: $analysis_html .= "</table>\n";
703: return $analysis_html;
704: }
705:
706: sub OR_Tries_Concept_Analysis {
707: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
708: my %ResponseData = %$respdat;
709: my $analysis_html = "<table>\n";
710: #
711: # Compute the data neccessary to make the plots
712: my @PlotData;
713: # Concept analysis
714: #
715: # Note: we do not bother with characterizing the students incorrect
716: # answers at the concept level because an incorrect answer for one foil
717: # may be a correct answer for another foil.
718: my %ConceptData;
719: foreach my $concept (@{$Concepts}) {
720: for (my $i=$mintries;$i<=$maxtries;$i++) {
721: #
722: # Gather the per-attempt data
723: my $cdata = $ConceptData{$concept}->[$i];
724: foreach my $foilid (@{$concept->{'foils'}}) {
725: $cdata->{'_correct'} +=
726: $ResponseData{$foilid}->[$i]->{'_correct'};
727: $cdata->{'_total'} +=
728: $ResponseData{$foilid}->[$i]->{'_total'};
729: }
730: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
731: if ($cdata->{'_total'} == 0) {
732: push (@{$PlotData[$i]->{'_correct'}},0);
733: } else {
734: push (@{$PlotData[$i]->{'_correct'}},
735: 100*$cdata->{'_correct'}/$cdata->{'_total'});
736: }
737: }
738: }
739: # Build a table for the plots
740: for (my $i=$mintries;$i<=$maxtries;$i++) {
741: my $minstu = $PlotData[$i]->{'_total'}->[0];
742: my $maxstu = $PlotData[$i]->{'_total'}->[0];
743: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
744: if ($minstu > $count) {
745: $minstu = $count;
746: }
747: if ($maxstu < $count) {
748: $maxstu = $count;
749: }
750: }
751: $maxstu = 0 if (! defined($maxstu));
752: $minstu = 0 if (! defined($minstu));
753: my $title;
754: my $count = $ResponseData{'_total'}->[$i];
755: if ($count == 0) {
756: $count = 'no submissions';
757: } elsif ($count == 1) {
758: $count = '1 submission';
759: } else {
760: $count = $count.' submissions';
761: }
762: $title = 'Attempt '.$i.', '.$count;
763: my $graphlink = &Apache::loncommon::DrawBarGraph
764: ($title,'Concept Number','Percent Correct',
765: 100,$plotcolors,undef,$PlotData[$i]->{'_correct'});
766: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
767: }
768: $analysis_html .= "</table>\n";
769: return $analysis_html;
770: }
771:
772: sub OR_analyze_by_tries {
773: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
774: my %Trydata;
775: $mintries = 1 if (! defined($mintries) || $mintries < 1);
776: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
777: foreach my $row (@$PerformanceData) {
778: next if (! defined($row));
779: my $tries = &get_tries_from_row($row);
780: my %Row = &Process_OR_Row($row);
781: next if (! %Row);
782: while (my ($foilid,$href) = each(%Row)) {
783: if (! ref($href)) {
784: $Trydata{$foilid}->[$tries] += $href;
785: next;
786: }
787: while (my ($option,$value) = each(%$href)) {
788: $Trydata{$foilid}->[$tries]->{$option}+=$value;
789: }
790: }
791: }
792: return %Trydata;
793: }
794:
795: #########################################################
796: #
797: # Option Response: Time Analysis
798: #
799: #########################################################
800: sub OR_time_analysis {
801: my ($PerformanceData,$ORdata) = @_;
802: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
803: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
804: $table = '<h3>'.
805: &mt('Not enough data for concept analysis. '.
806: 'Performing Foil Analysis').
807: '</h3>'.$table;
808: $ENV{'form.AnalyzeAs'} = 'Foils';
809: }
810: my $num_plots = $ENV{'form.NumPlots'};
811: my $num_data = scalar(@$PerformanceData)-1;
812: my $percent = sprintf('%2f',100/$num_plots);
813: #
814: $table .= "<table>\n";
815: for (my $i=0;$i<$num_plots;$i++) {
816: ##
817: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
818: ('startdate_'.$i);
819: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
820: ('enddate_'.$i);
821: if (! defined($starttime) || ! defined($endtime)) {
822: my $sec_in_day = 86400;
823: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
824: my ($sday,$smon,$syear);
825: (undef,undef,undef,$sday,$smon,$syear) =
826: localtime($last_sub_time - $sec_in_day*$i);
827: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
828: $endtime = $starttime + $sec_in_day;
829: if ($i == ($num_plots -1 )) {
830: $starttime = &get_time_from_row($PerformanceData->[0]);
831: }
832: }
833: my $startdateform = &Apache::lonhtmlcommon::date_setter
834: ('Statistics','startdate_'.$i,$starttime);
835: my $enddateform = &Apache::lonhtmlcommon::date_setter
836: ('Statistics','enddate_'.$i,$endtime);
837: #
838: my $begin_index;
839: my $end_index;
840: my $j;
841: while (++$j < scalar(@$PerformanceData)) {
842: last if (&get_time_from_row($PerformanceData->[$j])
843: > $starttime);
844: }
845: $begin_index = $j;
846: while (++$j < scalar(@$PerformanceData)) {
847: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
848: }
849: $end_index = $j;
850: ##
851: my $interval = {
852: begin_index => $begin_index,
853: end_index => $end_index,
854: startdateform => $startdateform,
855: enddateform => $enddateform,
856: };
857: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
858: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
859: $interval);
860: } else {
861: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
862: $Concepts,$interval);
863: }
864: }
865: #
866: return $table;
867: }
868:
869: sub OR_Foil_Time_Analysis {
870: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
871: my $analysis_html;
872: my $foilkey = &build_option_index($ORdata);
873: my ($begin_index,$end_index) = ($interval->{'begin_index'},
874: $interval->{'end_index'});
875: my %TimeData;
876: #
877: # Compute the number getting the foils correct or incorrects
878: for (my $j=$begin_index;$j<=$end_index;$j++) {
879: my $row = $PerformanceData->[$j];
880: next if (! defined($row));
881: my %Row = &Process_OR_Row($row);
882: while (my ($foilid,$href) = each(%Row)) {
883: if (! ref($href)) {
884: $TimeData{$foilid} += $href;
885: next;
886: }
887: while (my ($option,$value) = each(%$href)) {
888: $TimeData{$foilid}->{$option}+=$value;
889: }
890: }
891: }
892: my @Plotdata;
893: foreach my $foil (@$Foils) {
894: my $total = $TimeData{$foil}->{'_total'};
895: if ($total == 0) {
896: push(@{$Plotdata[0]},0);
897: } else {
898: push(@{$Plotdata[0]},
899: 100 * $TimeData{$foil}->{'_correct'} / $total);
900: }
901: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
902: my $optionidx = 1;
903: foreach my $option (@{$ORdata->{'_Options'}}) {
904: if ($total_incorrect == 0) {
905: push(@{$Plotdata[$optionidx]},0);
906: } else {
907: push(@{$Plotdata[$optionidx]},
908: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
909: }
910: } continue {
911: $optionidx++;
912: }
913: }
914: #
915: # Create the plot
916: my $count = $end_index-$begin_index;
917: my $title;
918: if ($count == 0) {
919: $title = 'no submissions';
920: } elsif ($count == 1) {
921: $title = 'one submission';
922: } else {
923: $title = $count.' submissions';
924: }
925: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
926: 'Foil Number',
927: 'Percent Correct',
928: 100,
929: $plotcolors,
930: undef,
931: $Plotdata[0]);
932: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
933: $Plotdata[0]->[$j]=0;
934: }
935: $count = $end_index-$begin_index-$TimeData{'_correct'};
936: if ($count == 0) {
937: $title = 'no submissions';
938: } elsif ($count == 1) {
939: $title = 'one submission';
940: } else {
941: $title = $count.' submissions';
942: }
943: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
944: 'Foil Number',
945: 'Incorrect Option Choice',
946: 100,
947: $plotcolors,
948: undef,
949: @Plotdata);
950: $analysis_html.='<tr>'.
951: '<td>'.$correctplot.'</td>'.
952: '<td>'.$incorrectplot.'</td>'.
953: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
954: $analysis_html.= '<tr>'.'<td colspan="3">'.
955: '<b>Start Time</b>:'.
956: ' '.$interval->{'startdateform'}.'<br />'.
957: '<b>End Time</b> : '.
958: ' '.$interval->{'enddateform'}.'<br />'.
959: # '<b>Plot Title</b> :'.
960: # (" "x3).$interval->{'titleform'}.
961: '</td>'.
962: "</tr>\n";
963: return $analysis_html;
964: }
965:
966: sub OR_Concept_Time_Analysis {
967: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
968: my $analysis_html;
969: ##
970: ## Determine starttime, endtime, startindex, endindex
971: my ($begin_index,$end_index) = ($interval->{'begin_index'},
972: $interval->{'end_index'});
973: my %TimeData;
974: #
975: # Compute the number getting the foils correct or incorrects
976: for (my $j=$begin_index;$j<=$end_index;$j++) {
977: my $row = $PerformanceData->[$j];
978: next if (! defined($row));
979: my %Row = &Process_OR_Row($row);
980: while (my ($foilid,$href) = each(%Row)) {
981: if (! ref($href)) {
982: $TimeData{$foilid} += $href;
983: next;
984: }
985: while (my ($option,$value) = each(%$href)) {
986: $TimeData{$foilid}->{$option}+=$value;
987: }
988: }
989: }
990: #
991: # Put the data in plottable form
992: my @Plotdata;
993: foreach my $concept (@$Concepts) {
994: my ($total,$correct);
995: foreach my $foil (@{$concept->{'foils'}}) {
996: $total += $TimeData{$foil}->{'_total'};
997: $correct += $TimeData{$foil}->{'_correct'};
998: }
999: if ($total == 0) {
1000: push(@Plotdata,0);
1001: } else {
1002: push(@Plotdata,100 * $correct / $total);
1003: }
1004: }
1005: #
1006: # Create the plot
1007: my $title = ($end_index - $begin_index).' submissions';
1008: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1009: 'Concept Number',
1010: 'Percent Correct',
1011: 100,
1012: $plotcolors,
1013: undef,
1014: \@Plotdata);
1015: $analysis_html.='<tr>'.
1016: '<td>'.$correctplot.'</td>'.
1017: '<td align="left" valign="top">'.
1018: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
1019: '<b>End Time</b> : '.
1020: ' '.$interval->{'enddateform'}.'<br />'.
1021: # '<b>Plot Title</b> :'.(" "x3).
1022: # $interval->{'titleform'}.
1023: '</td>'.
1024: "</tr>\n";
1025: return $analysis_html;
1026: }
1027:
1028: #########################################################
1029: #########################################################
1030: ##
1031: ## Excel output
1032: ##
1033: #########################################################
1034: #########################################################
1035: sub OR_excel_sheet {
1036: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1037: my $response = '';
1038: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1039: #
1040: # Create excel worksheet
1041: my $filename = '/prtspool/'.
1042: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
1043: time.'_'.rand(1000000000).'.xls';
1044: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
1045: if (! defined($workbook)) {
1046: $r->log_error("Error creating excel spreadsheet $filename: $!");
1047: $r->print('<p>'.&mt("Unable to create new Excel file. ".
1048: "This error has been logged. ".
1049: "Please alert your LON-CAPA administrator").
1050: '</p>');
1051: return undef;
1052: }
1053: #
1054: $workbook->set_tempdir('/home/httpd/perl/tmp');
1055: my $format = &Apache::loncommon::define_excel_formats($workbook);
1056: #
1057: # Create and populate main worksheets
1058: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
1059: my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
1060: my $response_data_sheet = $workbook->addworksheet('Response Data');
1061: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
1062: $response_data_sheet) {
1063: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
1064: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
1065: }
1066: #
1067: my $result;
1068: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1069: $Concepts,$ORdata);
1070: if ($result ne 'okay') {
1071: # Do something useful
1072: }
1073: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1074: $PerformanceData,$Foils,
1075: $ORdata);
1076: if ($result ne 'okay') {
1077: # Do something useful
1078: }
1079: $response_data_sheet->activate();
1080: #
1081: # Close the excel file
1082: $workbook->close();
1083: #
1084: # Write a link to allow them to download it
1085: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
1086: '<p><a href="'.$filename.'">'.
1087: &mt('Your Excel spreadsheet.').
1088: '</a></p>'."\n";
1089: return $result;
1090: }
1091:
1092: sub OR_build_problem_data_worksheet {
1093: my ($worksheet,$format,$Concepts,$ORdata) = @_;
1094: my $rows_output = 3;
1095: my $cols_output = 0;
1096: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
1097: ##
1098: ##
1099: my @Headers;
1100: if (@$Concepts > 1) {
1101: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
1102: 'Foil Name','Foil Text','Correct value');
1103: } else {
1104: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
1105: }
1106: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1107: my %Foildata = %{$ORdata->{'_Foils'}};
1108: my $conceptindex = 1;
1109: my $foilindex = 1;
1110: foreach my $concept (@$Concepts) {
1111: my @FoilsInConcept = @{$concept->{'foils'}};
1112: my $firstfoil = shift(@FoilsInConcept);
1113: if (@$Concepts > 1) {
1114: $worksheet->write_row($rows_output++,0,
1115: [$conceptindex,
1116: $concept->{'name'},
1117: $foilindex++,
1118: $Foildata{$firstfoil}->{'name'},
1119: $Foildata{$firstfoil}->{'text'},
1120: $Foildata{$firstfoil}->{'value'},]);
1121: } else {
1122: $worksheet->write_row($rows_output++,0,
1123: [ $foilindex++,
1124: $Foildata{$firstfoil}->{'name'},
1125: $Foildata{$firstfoil}->{'text'},
1126: $Foildata{$firstfoil}->{'value'},]);
1127: }
1128: foreach my $foilid (@FoilsInConcept) {
1129: if (@$Concepts > 1) {
1130: $worksheet->write_row($rows_output++,0,
1131: ['',
1132: '',
1133: $foilindex,
1134: $Foildata{$foilid}->{'name'},
1135: $Foildata{$foilid}->{'text'},
1136: $Foildata{$foilid}->{'value'},]);
1137: } else {
1138: $worksheet->write_row($rows_output++,0,
1139: [$foilindex,
1140: $Foildata{$foilid}->{'name'},
1141: $Foildata{$foilid}->{'text'},
1142: $Foildata{$foilid}->{'value'},]);
1143: }
1144: } continue {
1145: $foilindex++;
1146: }
1147: } continue {
1148: $conceptindex++;
1149: }
1150: $rows_output++;
1151: $rows_output++;
1152: ##
1153: ## Option data output
1154: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1155: foreach my $string (@{$ORdata->{'_Options'}}) {
1156: $worksheet->write($rows_output++,0,$string);
1157: }
1158: return 'okay';
1159: }
1160:
1161: sub OR_build_response_data_worksheet {
1162: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1163: my $rows_output = 3;
1164: my $cols_output = 0;
1165: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1166: $worksheet->set_column(1,1,20);
1167: $worksheet->set_column(2,2,13);
1168: my @Headers = ('identifier','time','award detail','attempt');
1169: foreach my $foil (@$Foils) {
1170: push (@Headers,$foil.' submission');
1171: push (@Headers,$foil.' grading');
1172: }
1173: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1174: #
1175: foreach my $row (@$PerformanceData) {
1176: next if (! defined($row));
1177: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1178: my @Foilgrades = split('&',$grading);
1179: my @Foilsubs = split('&',$submission);
1180: my %ResponseData;
1181: for (my $j=0;$j<=$#Foilgrades;$j++) {
1182: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1183: my (undef,$submission) = split('=',$Foilsubs[$j]);
1184: $submission = &Apache::lonnet::unescape($submission);
1185: $ResponseData{$foilid.' submission'}=$submission;
1186: $ResponseData{$foilid.' award'}=$correct;
1187: }
1188: $worksheet->write($rows_output,$cols_output++,$student);
1189: $worksheet->write($rows_output,$cols_output++,
1190: &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
1191: $worksheet->write($rows_output,$cols_output++,$award);
1192: $worksheet->write($rows_output,$cols_output++,$tries);
1193: foreach my $foilid (@$Foils) {
1194: $worksheet->write($rows_output,$cols_output++,
1195: $ResponseData{$foilid.' submission'});
1196: $worksheet->write($rows_output,$cols_output++,
1197: $ResponseData{$foilid.' award'});
1198: }
1199: $rows_output++;
1200: $cols_output = 0;
1201: }
1202: return;
1203: }
1204:
1205: sub build_foil_index {
1206: my ($ORdata) = @_;
1207: return if (! exists($ORdata->{'_Foils'}));
1208: my %Foildata = %{$ORdata->{'_Foils'}};
1209: my @Foils = sort(keys(%Foildata));
1210: my %Concepts;
1211: foreach my $foilid (@Foils) {
1212: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1213: $foilid);
1214: }
1215: undef(@Foils);
1216: # Having gathered the concept information in a hash, we now translate it
1217: # into an array because we need to be consistent about order.
1218: # Also put the foils in order, too.
1219: my $sortfunction = sub {
1220: my %Numbers = (one => 1,
1221: two => 2,
1222: three => 3,
1223: four => 4,
1224: five => 5,
1225: six => 6,
1226: seven => 7,
1227: eight => 8,
1228: nine => 9,
1229: ten => 10,);
1230: my $a1 = lc($a);
1231: my $b1 = lc($b);
1232: if (exists($Numbers{$a1})) {
1233: $a1 = $Numbers{$a1};
1234: }
1235: if (exists($Numbers{$b1})) {
1236: $b1 = $Numbers{$b1};
1237: }
1238: if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
1239: return $a1 <=> $b1;
1240: } else {
1241: return $a1 cmp $b1;
1242: }
1243: };
1244: my @Concepts;
1245: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1246: if (! defined($Concepts{$concept})) {
1247: $Concepts{$concept}=[];
1248: # next;
1249: }
1250: push(@Concepts,{ name => $concept,
1251: foils => [@{$Concepts{$concept}}]});
1252: push(@Foils,(@{$Concepts{$concept}}));
1253: }
1254: #
1255: # Build up the table of row labels.
1256: my $table = '<table border="1" >'."\n";
1257: if (@Concepts > 1) {
1258: $table .= '<tr>'.
1259: '<th>'.&mt('Concept Number').'</th>'.
1260: '<th>'.&mt('Concept').'</th>'.
1261: '<th>'.&mt('Foil Number').'</th>'.
1262: '<th>'.&mt('Foil Name').'</th>'.
1263: '<th>'.&mt('Foil Text').'</th>'.
1264: '<th>'.&mt('Correct Value').'</th>'.
1265: "</tr>\n";
1266: } else {
1267: $table .= '<tr>'.
1268: '<th>'.&mt('Foil Number').'</th>'.
1269: '<th>'.&mt('Foil Name').'</th>'.
1270: '<th>'.&mt('Foil Text').'</th>'.
1271: '<th>'.&mt('Correct Value').'</th>'.
1272: "</tr>\n";
1273: }
1274: my $conceptindex = 1;
1275: my $foilindex = 1;
1276: foreach my $concept (@Concepts) {
1277: my @FoilsInConcept = @{$concept->{'foils'}};
1278: my $firstfoil = shift(@FoilsInConcept);
1279: if (@Concepts > 1) {
1280: $table .= '<tr>'.
1281: '<td>'.$conceptindex.'</td>'.
1282: '<td>'.&HTML::Entities::encode($concept->{'name'}).'</td>'.
1283: '<td>'.$foilindex++.'</td>'.
1284: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1285: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1286: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1287: "</tr>\n";
1288: } else {
1289: $table .= '<tr>'.
1290: '<td>'.$foilindex++.'</td>'.
1291: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'name'}).'</td>'.
1292: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1293: '<td>'.&HTML::Entities::encode($Foildata{$firstfoil}->{'value'}).'</td>'.
1294: "</tr>\n";
1295: }
1296: foreach my $foilid (@FoilsInConcept) {
1297: if (@Concepts > 1) {
1298: $table .= '<tr>'.
1299: '<td></td>'.
1300: '<td></td>'.
1301: '<td>'.$foilindex.'</td>'.
1302: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1303: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1304: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1305: "</tr>\n";
1306: } else {
1307: $table .= '<tr>'.
1308: '<td>'.$foilindex.'</td>'.
1309: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'name'}).'</td>'.
1310: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1311: '<td>'.&HTML::Entities::encode($Foildata{$foilid}->{'value'}).'</td>'.
1312: "</tr>\n";
1313: }
1314: } continue {
1315: $foilindex++;
1316: }
1317: } continue {
1318: $conceptindex++;
1319: }
1320: $table .= "</table>\n";
1321: #
1322: # Build option index with color stuff
1323: return ($table,\@Foils,\@Concepts);
1324: }
1325:
1326: sub build_option_index {
1327: my ($ORdata)= @_;
1328: my $table = "<table>\n";
1329: my $optionindex = 0;
1330: my @Rows;
1331: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1332: push (@Rows,
1333: '<tr>'.
1334: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1335: (' 'x4).'</td>'.
1336: '<td>'.&HTML::Entities::encode($option).'</td>'.
1337: "</tr>\n");
1338: }
1339: shift(@Rows); # Throw away 'correct option chosen' color
1340: $table .= join('',reverse(@Rows));
1341: $table .= "</table>\n";
1342: }
1343:
1344: #########################################################
1345: #########################################################
1346: ##
1347: ## Generic Interface Routines
1348: ##
1349: #########################################################
1350: #########################################################
1351: sub CreateInterface {
1352: ##
1353: ## Environment variable initialization
1354: if (! exists$ENV{'form.AnalyzeOver'}) {
1355: $ENV{'form.AnalyzeOver'} = 'Tries';
1356: }
1357: ##
1358: ## Build the menu
1359: my $Str = '';
1360: $Str .= &Apache::lonhtmlcommon::breadcrumbs
1361: (undef,'Detailed Problem Analysis');
1362: $Str .= '<table cellspacing="5">'."\n";
1363: $Str .= '<tr>';
1364: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1365: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1366: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1367: $Str .= '<td align="center"> </td>';
1368: $Str .= '</tr>'."\n";
1369: ##
1370: ##
1371: $Str .= '<tr><td align="center">'."\n";
1372: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1373: $Str .= '</td>';
1374: #
1375: $Str .= '<td align="center">';
1376: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1377: $Str .= '</td>';
1378: #
1379: # $Str .= '<td align="center">';
1380: my $only_seq_with_assessments = sub {
1381: my $s=shift;
1382: if ($s->{'num_assess'} < 1) {
1383: return 0;
1384: } else {
1385: return 1;
1386: }
1387: };
1388: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1389: $only_seq_with_assessments);
1390: ##
1391: ##
1392: $Str .= '<td>';
1393: { # These braces are here to organize the code, not scope it.
1394: {
1395: $Str .= '<nobr>'.&mt('Analyze Over ');
1396: $Str .= &Apache::loncommon::help_open_topic
1397: ('Analysis_Analyze_Over');
1398: $Str .='<select name="AnalyzeOver" >';
1399: $Str .= '<option value="Tries" ';
1400: if (! exists($ENV{'form.AnalyzeOver'}) ||
1401: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1402: # Default to Tries
1403: $Str .= ' selected ';
1404: }
1405: $Str .= '>'.&mt('Tries').'</option>';
1406: $Str .= '<option value="Time" ';
1407: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1408: $Str .= '>'.&mt('Time').'</option>';
1409: $Str .= '</select>';
1410: $Str .= '</nobr><br />';
1411: }
1412: {
1413: $Str .= '<nobr>'.&mt('Analyze as ');
1414: $Str .= &Apache::loncommon::help_open_topic
1415: ('Analysis_Analyze_as');
1416: $Str .='<select name="AnalyzeAs" >';
1417: $Str .= '<option value="Concepts" ';
1418: if (! exists($ENV{'form.AnalyzeAs'}) ||
1419: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1420: # Default to Concepts
1421: $Str .= ' selected ';
1422: }
1423: $Str .= '>'.&mt('Concepts').'</option>';
1424: $Str .= '<option value="Foils" ';
1425: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1426: $Str .= '>'.&mt('Foils').'</option>';
1427: $Str .= '</select></nobr><br />';
1428: }
1429: {
1430: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1431: $Str .= &Apache::loncommon::help_open_topic
1432: ('Analysis_num_plots');
1433: $Str .= '<select name="NumPlots">';
1434: if (! exists($ENV{'form.NumPlots'})
1435: || $ENV{'form.NumPlots'} < 1
1436: || $ENV{'form.NumPlots'} > 20) {
1437: $ENV{'form.NumPlots'} = 5;
1438: }
1439: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1440: $Str .= '<option value="'.$i.'" ';
1441: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1442: $Str .= '>'.$i.'</option>';
1443: }
1444: $Str .= '</select></nobr>';
1445: }
1446: }
1447: $Str .= '</td>';
1448: ##
1449: ##
1450: $Str .= '</tr>'."\n";
1451: $Str .= '</table>'."\n";
1452: return $Str;
1453: }
1454:
1455: #########################################################
1456: #########################################################
1457: ##
1458: ## Misc Option Response functions
1459: ##
1460: #########################################################
1461: #########################################################
1462: sub get_time_from_row {
1463: my ($row) = @_;
1464: if (ref($row)) {
1465: return $row->[&Apache::loncoursedata::RD_timestamp()];
1466: }
1467: return undef;
1468: }
1469:
1470: sub get_tries_from_row {
1471: my ($row) = @_;
1472: if (ref($row)) {
1473: return $row->[&Apache::loncoursedata::RD_tries()];
1474: }
1475: return undef;
1476: }
1477:
1478: sub hashify_attempt {
1479: my ($row) = @_;
1480: my %attempt;
1481: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1482: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1483: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1484: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1485: return %attempt;
1486: }
1487:
1488: sub Process_OR_Row {
1489: my ($row) = @_;
1490: my %RowData;
1491: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1492: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1493: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1494: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1495: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1496: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1497: return undef if ($award eq 'MISSING_ANSWER');
1498: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1499: $RowData{'_correct'} = 1;
1500: }
1501: $RowData{'_total'} = 1;
1502: my @Foilgrades = split('&',$grading);
1503: my @Foilsubs = split('&',$submission);
1504: for (my $j=0;$j<=$#Foilgrades;$j++) {
1505: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1506: $foilid = &Apache::lonnet::unescape($foilid);
1507: my (undef,$submission) = split('=',$Foilsubs[$j]);
1508: if ($correct) {
1509: $RowData{$foilid}->{'_correct'}++;
1510: } else {
1511: $submission = &Apache::lonnet::unescape($submission);
1512: $RowData{$foilid}->{$submission}++;
1513: }
1514: $RowData{$foilid}->{'_total'}++;
1515: }
1516: return %RowData;
1517: }
1518:
1519: 1;
1520:
1521: __END__
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