1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
4: # $Id: lonproblemanalysis.pm,v 1.9 2002/08/14 21:51:51 stredwic Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # (Navigate problems for statistical reports
29: # YEAR=2001
30: # 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
31: # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
32: # YEAR=2002
33: # 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
34: # 5/12,5/14,5/15,5/19,5/26,7/16 Behrouz Minaei
35: #
36: ###
37:
38: package Apache::lonproblemanalysis;
39:
40: use strict;
41: use Apache::lonnet();
42: use Apache::lonhtmlcommon();
43: use GDBM_File;
44:
45: my $jr;
46:
47: sub BuildProblemAnalysisPage {
48: my ($cacheDB, $r)=@_;
49:
50: my %cache;
51: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
52: $r->print('Unable to tie database.');
53: return;
54: }
55:
56: my $Ptr = '';
57: $Ptr .= '<table border="0"><tbody>';
58: $Ptr .= '<tr><td align="right"><b>Select Sections</b>';
59: $Ptr .= '</td>'."\n";
60: $Ptr .= '<td align="left">'."\n";
61: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
62: my @sections = split(':',$cache{'sectionList'});
63: $Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections,
64: \@sectionsSelected,
65: 'Statistics');
66: $Ptr .= '</td></tr>'."\n";
67: $Ptr .= '<tr><td align="right"><b>Intervals</b></td>'."\n";
68: $Ptr .= '<td align="left">';
69: $Ptr .= &IntervalOptions($cache{'Interval'});
70: $Ptr .= '</td></tr></table><br>';
71: $r->print($Ptr);
72: $r->rflush();
73: $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache));
74:
75: untie(%cache);
76:
77: return;
78: }
79:
80: sub BuildAnalyzePage {
81: my ($cacheDB, $students, $courseID,$r)=@_;
82:
83: $jr = $r;
84: my $c = $r->connection;
85:
86: my $Str = '</form>';
87: my %cache;
88:
89: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
90: $Str .= 'Unable to tie database.';
91: $r->print($Str);
92: return;
93: }
94:
95: # Remove students who don't have the proper section.
96: my @sectionsSelected = split(':',$cache{'sectionsSelected'});
97: for(my $studentIndex=((scalar @$students)-1); $studentIndex>=0;
98: $studentIndex--) {
99: my $value = $cache{$students->[$studentIndex].':section'};
100: my $found = 0;
101: foreach (@sectionsSelected) {
102: if($_ eq 'none') {
103: if($value eq '' || !defined($value) || $value eq ' ') {
104: $found = 1;
105: last;
106: }
107: } else {
108: if($value eq $_) {
109: $found = 1;
110: last;
111: }
112: }
113: }
114: if($found == 0) {
115: splice(@$students, $studentIndex, 1);
116: }
117: }
118: unless(untie(%cache)) {
119: $r->print('Can not untie hash.');
120: $r->rflush();
121: }
122:
123: my $error =
124: &Apache::loncoursedata::DownloadStudentCourseDataSeparate($students,
125: 'true',
126: $cacheDB,
127: 'true',
128: 'true',
129: $courseID,
130: $r, $c);
131: if($error ne 'OK') {
132: $r->print($error.'<br>Error downloading course data<br>');
133: return;
134: }
135:
136:
137: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
138: $Str .= 'Unable to tie database.';
139: $r->print($Str);
140: return;
141: }
142:
143: my ($problemId, $part, $responseId)=split(':',$cache{'AnalyzeInfo'});
144: my $uri = $cache{$problemId.':source'};
145: my $problem = $cache{$problemId.':problem'};
146: my $title = $cache{$problemId.':title'};
147: my $interval = $cache{'Interval'};
148:
149: my %ConceptData;
150: $ConceptData{"Interval"} = $interval;
151:
152: #Initialize the option response true answers
153: my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem,
154: $students->[0], $courseID);
155: if(defined($analyzeData->{'error'})) {
156: $Str .= $analyzeData->{'error'}.'<br>Incorrect part requested.<br>';
157: $r->print($Str);
158: return;
159: }
160:
161: $r->print($Str);
162: $Str = '';
163: if($c->aborted()) { untie(%cache); return; }
164:
165: #compute the intervals
166: &Interval($part, $problem, $interval, $analyzeData->{'concepts'},
167: \%ConceptData);
168:
169: $title =~ s/\ /"_"/eg;
170: $Str .= '<br><b>'.$uri.'</b>';
171:
172: $r->print($Str);
173: $Str = '';
174: if($c->aborted()) { untie(%cache); return; }
175:
176: #Java script Progress window
177: for(my $index=0; $index<(scalar @$students); $index++) {
178: if($c->aborted()) { untie(%cache); return; }
179: &OpStatus($problemId, $students->[$index], \%ConceptData,
180: $analyzeData->{'foil_to_concept'}, $analyzeData, \%cache);
181: }
182:
183: $Str .= '<br>';
184: for (my $k=0; $k<$interval; $k++ ) {
185: if($c->aborted()) { untie(%cache); return $Str; }
186: $Str .= &DrawGraph($k, $title, $analyzeData->{'concepts'},
187: \%ConceptData);
188: $r->print($Str);
189: $Str = '';
190: }
191: for (my $k=0; $k<$interval; $k++ ) {
192: if($c->aborted()) { untie(%cache); return $Str; }
193: $Str .= &DrawTable($k, $analyzeData->{'concepts'}, \%ConceptData);
194: $r->print($Str);
195: $Str = '';
196: }
197: my $Answ=&Apache::lonnet::ssi($uri);
198: $Str .= '<br><b>Here you can see the Problem:</b><br>'.$Answ;
199: $Str .= '<form>';
200: $r->print($Str);
201:
202: untie(%cache);
203:
204: return;
205: }
206:
207: #---- Problem Analysis Web Page ----------------------------------------------
208:
209: sub IntervalOptions {
210: my ($selectedInterval)=@_;
211:
212: my $interval = 1;
213: for(my $n=1; $n<=7; $n++) {
214: if($selectedInterval == $n) {
215: $interval = $n;
216: }
217: }
218:
219: my $Ptr = '<select name="Interval">'."\n";
220: for(my $n=1; $n<=7;$ n++) {
221: $Ptr .= '<option';
222: if($interval == $n) {
223: $Ptr .= ' selected';
224: }
225: $Ptr .= '>'.$n."</option>"."\n";
226: }
227: $Ptr .= '</select>'."\n";
228:
229: return $Ptr;
230: }
231:
232: sub OptionResponseTable {
233: my ($optionResponses,$cache)=@_;
234:
235: my @optionResponses=split(':::', $optionResponses);
236: my %partCount;
237: my %sequences;
238: my @orderedSequences=();
239: foreach(@optionResponses) {
240: my ($sequence, $problemId, $part, undef)=split(':',$_);
241: $partCount{$problemId.':'.$part}++;
242: if(!defined($sequences{$sequence})) {
243: push(@orderedSequences, $sequence);
244: $sequences{$sequence} = $_;
245: } else {
246: $sequences{$sequence} .= ':::'.$_;
247: }
248: }
249:
250: my $Str = '';
251:
252: foreach my $sequence (@orderedSequences) {
253: my @optionProblems = split(':::', $sequences{$sequence});
254:
255: $Str .= '<b>'.$cache->{$sequence.':title'}.'</b>'."\n";
256: $Str .= "<table border=2><tr><th> \# </th><th> Problem Title </th>";
257: $Str .= '<th> Resource </th><th> Analysis </th></tr>'."\n";
258:
259: my $count = 1;
260: foreach(@optionProblems) {
261: my (undef, $problemId, $part, $response)=
262: split(':',$sequences{$sequence});
263: my $uri = $cache->{$problemId.':source'};
264: my $title = $cache->{$problemId.':title'};
265:
266: my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
267: $Str .= '<tr>';
268: $Str .= '<td> '.$count.' </td>';
269: $Str .= '<td bgcolor="#DDFFDD">'.$Temp.'</td>';
270: $Str .= '<td bgcolor="#EEFFCC">'.$uri.'</td>';
271: if($partCount{$problemId.':'.$part} < 2) {
272: $Str .= '<td><input type="submit" name="Analyze:::';
273: $Str .= $problemId.':'.$part.'" value="';
274: $Str .= 'Part '.$part;
275: $Str .= '" /></td></tr>'."\n";
276: } else {
277: my $value = $problemId.':'.$part.':'.$response;
278: $Str .= '<td><input type="submit" name="Analyze:::'.$value;
279: $Str .= '" value="';
280: $Str .= 'Part '.$part.' Response '.$response;
281: $Str .= '" /></td></tr>'."\n";
282: }
283: $count++;
284: }
285: $Str .= '</table><br>'."\n";
286: }
287:
288: return $Str;
289: }
290:
291: #---- END Problem Analysis Web Page ------------------------------------------
292:
293: #---- Analyze Web Page -------------------------------------------------------
294:
295: #restore the student submissions and finding the result
296: sub OpStatus {
297: my ($problemID, $student, $ConceptData, $foil_to_concept,
298: $analyzeData, $cache)=@_;
299:
300: my $ids = $analyzeData->{'parts'};
301: my @True = ();
302: my @False = ();
303: my $flag=0;
304:
305: my $tries=0;
306:
307: foreach my $id (@$ids) {
308: my ($part, $response) = split(/\./, $id);
309: my $time=$cache->{$student.':'.$problemID.':'.$part.':timestamp'};
310: my @submissions = split(':::', $cache->{$student.':'.$problemID.':'.
311: $part.':'.$response.
312: ':submission'});
313: foreach my $Resp (@submissions) {
314: my %submission=&Apache::lonnet::str2hash($Resp);
315: foreach (keys(%submission)) {
316: if($submission{$_}) {
317: my $answer = $analyzeData->{$id.'.foil.value.'.$_};
318: if($submission{$_} eq $answer) {
319: &Decide("true", $foil_to_concept->{$_},
320: $time, $ConceptData);
321: } else {
322: &Decide("false", $foil_to_concept->{$_},
323: $time, $ConceptData);
324: }
325: }
326: }
327: }
328: }
329:
330: return;
331: }
332:
333: sub DrawGraph {
334: my ($k,$Src,$Concepts,$ConceptData)=@_;
335: my $Max=0;
336: my @data1;
337: my @data2;
338:
339: # Adjust Data and find the Max
340: for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
341: my $tmp=$Concepts->[$n];
342: $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
343: $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
344: my $Sum=$data1[$n]+$data2[$n];
345: if($Max < $Sum) {
346: $Max=$Sum;
347: }
348: }
349: for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
350: if ($data1[$n]+$data2[$n]<$Max) {
351: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
352: }
353: }
354: my $P_No = (scalar @data1);
355:
356: if($Max > 1) {
357: $Max += (10 - $Max % 10);
358: $Max = int($Max);
359: } else {
360: $Max = 1;
361: }
362:
363: my $Titr=($ConceptData->{'Interval'}>1) ? $Src.'_interval_'.($k+1) : $Src;
364: # $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2;
365: my $GData = '';
366: $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
367: $GData .= (join(',',@data1)).'&'.(join(',',@data2));
368:
369: return '<IMG src="/cgi-bin/graph.gif?'.$GData.'" border=1/>';
370: }
371:
372: sub DrawTable {
373: my ($k,$Concepts,$ConceptData)=@_;
374: my $Max=0;
375: my @data1;
376: my @data2;
377: my $Correct=0;
378: my $Wrong=0;
379: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
380: my $tmp=$Concepts->[$n];
381: $data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
382: $Correct+=$data1[$n];
383: $data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
384: $Wrong+=$data2[$n];
385: my $Sum=$data1[$n]+$data2[$n];
386: if($Max < $Sum) {
387: $Max=$Sum;
388: }
389: }
390: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
391: if ($data1[$n]+$data2[$n]<$Max) {
392: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
393: }
394: }
395: my $P_No = (scalar @data1);
396: my $Str = '';
397: # $Str .= '<br><b>From: ['.localtime($ConceptData->{'Int.'.($k-1)});
398: # $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']</b>';
399: $Str .= "\n".'<table border=2>'.
400: "\n".'<tr>'.
401: "\n".'<th> # </th>'.
402: "\n".'<th> Concept </th>'.
403: "\n".'<th> Correct </th>'.
404: "\n".'<th> Wrong </th>'.
405: "\n".'</tr>';
406:
407: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
408: $Str .= '<tr>'."\n";
409: $Str .= '<td>'.($n+1).'</td>'."\n";
410: my ($currentConcept) = split('::',$Concepts->[$n]);
411: $Str .= '<td bgcolor="EEFFCC">'.$currentConcept;
412: $Str .= '</td>'."\n";
413: $Str .= '<td bgcolor="DDFFDD">'.$data1[$n].'</td>'."\n";
414: $Str .= '<td bgcolor="FFDDDD">'.$data2[$n].'</td>'."\n";
415: $Str .= '</tr>'."\n";
416: }
417: $Str .= '<td></td><td><b>From:['.localtime($ConceptData->{'Int.'.$k});
418: $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1);
419: $Str .= ']</b></td><td>'.$Correct.'</td><td>'.$Wrong.'</td>';
420: $Str .= '</table>'."\n";
421:
422: return $Str;
423: #$Apache::lonxml::debug=1;
424: #&Apache::lonhomework::showhash(%ConceptData);
425: #$Apache::lonxml::debug=0;
426: }
427:
428: #---- END Analyze Web Page ----------------------------------------------
429:
430: sub Decide {
431: #deciding the true or false answer belongs to each interval
432: my ($type,$concept,$time,$ConceptData)=@_;
433: my $k=0;
434: while($time > $ConceptData->{'Int.'.($k+1)} &&
435: $k < $ConceptData->{'Interval'}) {
436: $k++;
437: }
438: $ConceptData->{$concept.'.'.$k.'.'.$type}++;
439:
440: return;
441: }
442:
443: sub InitAnalysis {
444: my ($uri,$part,$responseId,$problem,$student,$courseID)=@_;
445: my ($name,$domain)=split(/\:/,$student);
446:
447: my %analyzeData;
448: # Render the student's view of the problem. $Answ is the problem
449: # Stringafied
450: my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze',
451: 'grade_username' => $name,
452: 'grade_domain' => $domain,
453: 'grade_courseid' => $courseID,
454: 'grade_symb' => $problem));
455: my ($Answer)=&Apache::lonnet::str2hashref($Answ);
456:
457: my $found = 0;
458: my @parts=();
459: if(defined($responseId)) {
460: foreach (@{$Answer->{'parts'}}) {
461: if($_ eq $part.'.'.$responseId) {
462: push(@parts, $_);
463: $found = 1;
464: last;
465: }
466: }
467: } else {
468: foreach (@{$Answer->{'parts'}}) {
469: if($_ =~ /$part/) {
470: push(@parts, $_);
471: $found = 1;
472: last;
473: }
474: }
475: }
476:
477: if($found == 0) {
478: $analyzeData{'error'} = 'No parts matching selected values';
479: return \%analyzeData;
480: }
481:
482: my @Concepts=();
483: my %foil_to_concept;
484: foreach my $currentPart (@parts) {
485: if(defined($Answer->{$currentPart.'.concepts'})) {
486: foreach my $concept (@{$Answer->{$currentPart.'.concepts'}}) {
487: push(@Concepts, $concept);
488: foreach my $foil (@{$Answer->{$currentPart.'.concept.'.
489: $concept}}) {
490: $analyzeData{$currentPart.'.foil.value.'.$foil} =
491: $Answer->{$currentPart.'.foil.value.'.$foil};
492: $foil_to_concept{$foil} = $concept;
493: }
494: }
495: } else {
496: foreach (keys(%$Answer)) {
497: if(/$currentPart.foil\.value\.(.*)$/) {
498: push(@Concepts, $1);
499: $foil_to_concept{$1} = $1;
500: $analyzeData{$currentPart.'.foil.value.'.$1} =
501: $Answer->{$currentPart.'.foil.value.'.$1};
502: }
503: }
504: }
505: }
506:
507: $analyzeData{'parts'} = \@parts;
508: $analyzeData{'concepts'} = \@Concepts;
509: $analyzeData{'foil_to_concept'} = \%foil_to_concept;
510:
511: return \%analyzeData;
512: }
513:
514: sub Interval {
515: my ($part,$symb,$interval,$Concepts,$ConceptData)=@_;
516: my $Int=$interval;
517: my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb);
518: my $opn = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb);
519: my $add=int(($due-$opn)/$Int);
520: $ConceptData->{'Int.0'}=$opn;
521: for(my $i=1; $i<$Int; $i++) {
522: $ConceptData->{'Int.'.$i}=$opn+$i*$add;
523: }
524: $ConceptData->{'Int.'.$Int}=$due;
525: for(my $i=0; $i<$Int; $i++) {
526: for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
527: my $tmp=$Concepts->[$n];
528: $ConceptData->{$tmp.'.'.$i.'.true'}=0;
529: $ConceptData->{$tmp.'.'.$i.'.false'}=0;
530: }
531: }
532: }
533: 1;
534: __END__
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