1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.32 2003/10/10 21:49:20 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:
28: package Apache::lonproblemanalysis;
29:
30: use strict;
31: use Apache::lonnet();
32: use Apache::loncommon();
33: use Apache::lonhtmlcommon();
34: use Apache::loncoursedata();
35: use Apache::lonstatistics;
36: use Apache::lonlocal;
37:
38: sub BuildProblemAnalysisPage {
39: my ($r,$c)=@_;
40: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
41: $r->print(&CreateInterface());
42: #
43: my @Students = @Apache::lonstatistics::Students;
44: #
45: if (exists($ENV{'form.problemchoice'}) && !exists($ENV{'SelectAnother'})) {
46: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
47: &mt('Analyze Problem Again').'" />');
48: $r->print(' 'x5);
49: $r->print('<input type="submit" name="ClearCache" value="'.
50: &mt('Clear Caches').'" />');
51: $r->print(' 'x5);
52: $r->print('<input type="hidden" name="problemchoice" value="'.
53: $ENV{'form.problemchoice'}.'" />');
54: $r->print('<input type="submit" name="SelectAnother" value="'.
55: &mt('Choose a different resource').'" />');
56: $r->print(' 'x5);
57: #
58: $r->print('<hr />');
59: &Apache::lonstatistics::Gather_Full_Student_Data($r);
60: #
61: my ($symb,$part,$resid) = &get_problem_symb(
62: &Apache::lonnet::unescape($ENV{'form.problemchoice'})
63: );
64: #
65: my $resource = &get_resource_from_symb($symb);
66: if (defined($resource)) {
67: my %Data = &get_problem_data($resource->{'src'});
68: my $ORdata = $Data{$part.'.'.$resid};
69: ##
70: ## Render the problem
71: my $base;
72: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
73: $base = "http://".$ENV{'SERVER_NAME'}.$base;
74: my $rendered_problem =
75: &Apache::lonnet::ssi_body($resource->{'src'});
76: $rendered_problem =~ s/<\s*form\s*/<nop /g;
77: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
78: $r->print('<table bgcolor="ffffff"><tr><td>'.
79: '<base href="'.$base.'" />'.
80: $rendered_problem.
81: '</td></tr></table>');
82: ##
83: ## Analyze the problem
84: my $PerformanceData =
85: &Apache::loncoursedata::get_optionresponse_data
86: (\@Students,$symb,$resid);
87: if (defined($PerformanceData) &&
88: ref($PerformanceData) eq 'ARRAY') {
89: if ($ENV{'form.AnalyzeBy'} eq 'Tries') {
90: my $analysis_html = &DoTriesAnalysis($PerformanceData,
91: $ORdata);
92: $r->print($analysis_html);
93: # } elsif ($ENV{'form.AnalyzeBy'} eq 'Time') {
94: # my $analysis_html = &DoTimeAnalysis($PerformanceData,
95: # $ORdata);
96: # $r->print($analysis_html);
97: } else {
98: $r->print('<h2>'.
99: &mt('The analysis you have selected is '.
100: 'not supported at this time').
101: '</h2>');
102: }
103: } else {
104: $r->print('<h2>'.
105: &mt('There is no student data for this problem.').
106: '</h2>');
107: }
108: } else {
109: $r->print('resource is undefined');
110: }
111: $r->print('<hr />');
112: } else {
113: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
114: &mt('Analyze Problem').'" />');
115: $r->print(' 'x5);
116: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
117: $r->print(&OptionResponseProblemSelector());
118: }
119: }
120:
121:
122: sub DoTriesAnalysis {
123: my ($PerformanceData,$ORdata) = @_;
124: my $mintries = 1;
125: my $maxtries = $ENV{'form.NumPlots'};
126: my %ResponseData = &analyze_option_data_by_tries($PerformanceData,
127: $mintries,$maxtries);
128: my @Foils = sort(keys(%ResponseData));
129: my %Row_Label;
130: foreach my $foilid (@Foils) {
131: my $value = $ORdata->{'Foiltext'}->{$foilid};
132: $Row_Label{$foilid} = $ORdata->{'Foiltext'}->{$foilid};
133: }
134: #
135: # Build up the table of row labels.
136: my $table = '<table border="1" >'."\n";
137: $table .= '<tr><th>'.&mt('Foil Number').'</th>'.
138: '<th>'.&mt('Foil Text')."</th></tr>\n";
139: my $index = 1;
140: foreach my $foilid (@Foils) {
141: $table .= '<tr><td>'.$index.'</td>'.
142: '<td>'.$Row_Label{$foilid}."</td></tr>\n";
143: } continue {
144: $index++;
145: }
146: $table .= "</table>\n";
147: #
148: # Compute the data neccessary to make the plots
149: my @PlotData;
150: my @CumulativePlotData;
151: foreach my $foilid (@Foils) {
152: for (my $i=$mintries;$i<=$maxtries;$i++) {
153: #
154: # Gather the per-attempt data
155: push (@{$PlotData[$i]->{'good'}},
156: $ResponseData{$foilid}->[$i]->{'percent_corr'});
157: push (@{$PlotData[$i]->{'bad'}},
158: 100-$ResponseData{$foilid}->[$i]->{'percent_corr'});
159: #
160: # Someday we may need the cumulative data and I think
161: # this is a neat way of computing it as we go along.
162: push (@{$CumulativePlotData[$i]->{'good'}},
163: $CumulativePlotData[-1]->{'good'}+
164: $ResponseData{$foilid}->[$i]->{'correct'});
165: push (@{$CumulativePlotData[$i]->{'bad'}},
166: $CumulativePlotData[-1]->{'bad'}+
167: $ResponseData{$foilid}->[$i]->{'incorrect'});
168: }
169: }
170: #
171: # Build a table for the plots
172: $table .= "<table>\n";
173: my @Plots;
174: for (my $i=$mintries;$i<=$maxtries;$i++) {
175: my $minstu = $ResponseData{$Foils[0]}->[$i]->{'total'};
176: my $maxstu = $ResponseData{$Foils[0]}->[$i]->{'total'};
177: foreach my $foilid (@Foils) {
178: if ($minstu > $ResponseData{$foilid}->[$i]->{'total'}) {
179: $minstu = $ResponseData{$foilid}->[$i]->{'total'};
180: }
181: if ($maxstu < $ResponseData{$foilid}->[$i]->{'total'}) {
182: $maxstu = $ResponseData{$foilid}->[$i]->{'total'};
183: }
184: }
185: $maxstu = 0 if (! $maxstu);
186: $minstu = 0 if (! $minstu);
187: my $graphlink;
188: if ($maxstu == $minstu) {
189: $graphlink = &Apache::loncommon::DrawGraph
190: ('Attempt '.$i.', '.$maxstu.' students',
191: 'Foil Number',
192: 'Percent Correct',
193: 100,
194: $PlotData[$i]->{'good'},
195: $PlotData[$i]->{'bad'});
196: } else {
197: $graphlink = &Apache::loncommon::DrawGraph
198: ('Attempt '.$i.', '.$minstu.'-'.$maxstu.
199: ' students',
200: 'Foil Number',
201: 'Percent Correct',
202: 100,
203: $PlotData[$i]->{'good'},
204: $PlotData[$i]->{'bad'});
205: }
206: push(@Plots,$graphlink);
207: }
208: #
209: # Should this be something the user can set? Too many dialogs!
210: my $plots_per_row = 2;
211: while (my $plotlink = shift(@Plots)) {
212: $table .= '<tr><td>'.$plotlink.'</td>';
213: for (my $i=1;$i<$plots_per_row;$i++) {
214: if ($plotlink = shift(@Plots)) {
215: $table .= '<td>'.$plotlink.'</td>';
216: } else {
217: $table .= '<td></td>';
218: }
219: }
220: $table .= "</tr>\n";
221: }
222: $table .= "</table>\n";
223: return ($table);
224: }
225:
226: sub analyze_option_data_by_tries {
227: my ($PerformanceData,$mintries,$maxtries) = @_;
228: my %Trydata;
229: $mintries = 1 if (! defined($mintries) || $mintries < 1);
230: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
231: foreach my $row (@$PerformanceData) {
232: next if (! defined($row));
233: my ($grading,$submission,$time,$tries) = @$row;
234: my @Foilgrades = split('&',$grading);
235: my @Foilsubs = split('&',$submission);
236: for (my $numtries = 1; $numtries <= $maxtries; $numtries++) {
237: if ($tries == $numtries) {
238: foreach my $foilgrade (@Foilgrades) {
239: my ($foilid,$correct) = split('=',$foilgrade);
240: if ($correct) {
241: $Trydata{$foilid}->[$numtries]->{'correct'}++;
242: } else {
243: $Trydata{$foilid}->[$numtries]->{'incorrect'}++;
244: }
245: }
246: }
247: }
248: }
249: foreach my $foilid (keys(%Trydata)) {
250: foreach my $tryhash (@{$Trydata{$foilid}}) {
251: next if ((! exists($tryhash->{'correct'}) &&
252: ! exists($tryhash->{'incorrect'})) ||
253: ($tryhash->{'correct'} < 1 &&
254: $tryhash->{'incorrect'} < 1));
255: $tryhash->{'total'} = $tryhash->{'correct'} +
256: $tryhash->{'incorrect'};
257: $tryhash->{'percent_corr'} = 100 *
258: ($tryhash->{'correct'} /
259: ($tryhash->{'correct'} + $tryhash->{'incorrect'})
260: );
261: }
262: }
263: return %Trydata;
264: }
265:
266: sub get_problem_symb {
267: my $problemstring = shift();
268: my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/);
269: return ($symb,$partid,$resid);
270: }
271:
272: sub CreateInterface {
273: ##
274: ## Environment variable initialization
275: if (! exists$ENV{'form.AnalyzeBy'}) {
276: $ENV{'form.AnalyzeBy'} = 'Tries';
277: }
278: ##
279: ## Build the menu
280: my $Str = '';
281: $Str .= '<table cellspacing="5">'."\n";
282: $Str .= '<tr>';
283: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
284: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
285: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
286: $Str .= '<td align="center"> </td>';
287: $Str .= '</tr>'."\n";
288: ##
289: ##
290: $Str .= '<tr><td align="center">'."\n";
291: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
292: $Str .= '</td>';
293: #
294: $Str .= '<td align="center">';
295: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
296: $Str .= '</td>';
297: #
298: # $Str .= '<td align="center">';
299: my $only_seq_with_assessments = sub {
300: my $s=shift;
301: if ($s->{'num_assess'} < 1) {
302: return 0;
303: } else {
304: return 1;
305: }
306: };
307: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
308: $only_seq_with_assessments);
309: # $Str .= '</td>';
310: #
311: $Str .= '<td>';
312: $Str .= '<nobr>'.&mt('Analyze By ');
313: $Str .='<select name="AnalyzeBy" >';
314: #
315: $Str .= '<option value="Tries" ';
316: if (! exists($ENV{'form.AnalyzeBy'}) || $ENV{'form.AnalyzeBy'} eq 'Tries'){
317: # Default to Tries
318: $Str .= ' selected ';
319: }
320: $Str .= '>'.&mt('Tries').'</option>';
321: #
322: $Str .= '<option value="Time" ';
323: $Str .= ' selected ' if ($ENV{'form.AnalyzeBy'} eq 'Time');
324: $Str .= '>'.&mt('Time').'</option>';
325: $Str .= '</select></nobr><br />';
326: #
327: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
328: $Str .= '<select name="NumPlots">';
329: if (! exists($ENV{'form.NumPlots'})
330: || $ENV{'form.NumPlots'} < 1
331: || $ENV{'form.NumPlots'} > 20) {
332: $ENV{'form.NumPlots'} = 7;
333: }
334: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
335: $Str .= '<option value="'.$i.'" ';
336: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
337: $Str .= '>'.$i.'</option>';
338: }
339: $Str .= '</select></nobr>';
340: $Str .= '</td>';
341: #
342: $Str .= '</tr>'."\n";
343: $Str .= '</table>'."\n";
344: return ($Str);
345: }
346:
347: sub OptionResponseProblemSelector {
348: my $Str;
349: $Str = "\n<table>\n";
350: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
351: next if ($seq->{'num_assess'}<1);
352: my $seq_str = '';
353: foreach my $res (@{$seq->{'contents'}}) {
354: # &Apache::lonnet::logthis('checking '.$res->{'title'});
355: next if ($res->{'type'} ne 'assessment');
356: foreach my $part (@{$res->{'parts'}}) {
357: my $partdata = $res->{'partdata'}->{$part};
358: if (! exists($partdata->{'option'}) ||
359: $partdata->{'option'} == 0) {
360: next;
361: }
362: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
363: my $respid = $partdata->{'ResponseIds'}->[$i];
364: my $resptype = $partdata->{'ResponseTypes'}->[$i];
365: if ($resptype eq 'option') {
366: my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid);
367: my $checked = '';
368: if ($ENV{'form.problemchoice'} eq $value) {
369: $checked = 'checked ';
370: }
371: $seq_str .= '<tr><td>'.
372: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
373: '</td><td>'.
374: '<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
375: if ($partdata->{'option'} > 1) {
376: $seq_str .= &mt('response').' '.$respid;
377: }
378: $seq_str .= "</td></tr>\n";
379: }
380: }
381: }
382: }
383: if ($seq_str ne '') {
384: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
385: "</tr>\n".$seq_str;
386: }
387: }
388: $Str .= "</table>\n";
389: return $Str;
390: }
391:
392: sub get_resource_from_symb {
393: my ($symb) = @_;
394: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
395: foreach my $res (@{$seq->{'contents'}}) {
396: if ($res->{'symb'} eq $symb) {
397: return $res;
398: }
399: }
400: }
401: return undef;
402: }
403:
404: sub get_problem_data {
405: my ($url) = @_;
406: # my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze',
407: # 'grade_username' => $sname,
408: # 'grade_domain' => $sdom,
409: # 'grade_courseid' => $cid,
410: # 'grade_symb' => $symb));
411: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
412: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
413: my %Answer;
414: %Answer=&Apache::lonnet::str2hash($Answ);
415: # &Apache::lonnet::logthis('keys of %Answer = '.join(', ',(keys(%Answer))));
416: # &Apache::lonnet::logthis('$Answer{parts} = '.
417: # join(', ',@{$Answer{'parts'}}));
418: my %Partdata;
419: foreach my $part (@{$Answer{'parts'}}) {
420: while (my($key,$value) = each(%Answer)) {
421: next if ($key !~ /^$part/);
422: $key =~ s/^$part\.//;
423: if (ref($value) eq 'ARRAY') {
424: if ($key eq 'options') {
425: $Partdata{$part}->{'Options'}=$value;
426: } elsif ($key eq 'concepts') {
427: $Partdata{$part}->{'Concepts'}=$value;
428: } elsif ($key =~ /^concept\.(.*)$/) {
429: my $concept = $1;
430: foreach my $foil (@$value) {
431: $Partdata{$part}->{$foil}->{'Concept'}=$concept;
432: }
433: }
434: # &Apache::lonnet::logthis($part.' '.$key.' (array) = '.
435: # join(', ',@$value));
436: } else {
437: $value =~ s/^\s*//g;
438: $value =~ s/\s*$//g;
439: if ($key=~ /^foil\.text\.(.*)$/) {
440: my $foil = $1;
441: $Partdata{$part}->{'Foiltext'}->{$foil}=$value;
442: } elsif ($key =~ /^foil\.value\.(.*)$/) {
443: my $foil = $1;
444: $Partdata{$part}->{'FoilValues'}->{$foil}=$value;
445: }
446: # &Apache::lonnet::logthis($part.' '.$key.' = '.$value);
447: }
448: }
449: }
450:
451: # my $parts='';
452: # foreach my $elm (@{$Answer{"parts"}}) {
453: # $parts.="$elm,";
454: # }
455: # chop($parts);
456: # my $conc='';
457: # foreach my $elm (@{$Answer{"$parts.concepts"}}) {
458: # $conc.="$elm@";
459: # }
460: # chop($conc);
461: #
462: # @Concepts=split(/\@/,$conc);
463: # foreach my $concept (@{$Answer{"$parts.concepts"}}) {
464: # foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) {
465: # $foil_to_concept{$foil} = $concept;
466: # #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"};
467: # }
468: # }
469: # return $symb;
470: return %Partdata;
471: }
472:
473: 1;
474:
475: __END__
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