1: # The LearningOnline Network with CAPA
2: #
3: # $Id: lonproblemanalysis.pm,v 1.26 2003/10/07 16:07:39 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: $r->print(&CreateInterface());
42: if (exists($ENV{'form.problemchoice'})) {
43: $r->print('<hr />');
44: &Apache::lonstatistics::Gather_Full_Student_Data($r);
45: #
46: my ($symb,$part,$resid) = &get_problem_symb(
47: &Apache::lonnet::unescape($ENV{'form.problemchoice'})
48: );
49: my $resource = &get_resource_from_symb($symb);
50: if (defined($resource)) {
51: my %Data = &get_problem_data($resource->{'src'});
52: my $ORdata = $Data{$part.'.'.$resid};
53: ##
54: ## Render the problem
55: my $base;
56: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
57: $base = "http://".$ENV{'SERVER_NAME'}.$base;
58: my $rendered_problem =
59: &Apache::lonnet::ssi_body($resource->{'src'});
60: $rendered_problem =~ s/<form /<nop /g;
61: $rendered_problem =~ s/<\s*\/form\s>/<\/nop>/g;
62: $r->print('<table bgcolor="ffffff"><tr><td>'.
63: '<base href="'.$base.'" />'.
64: $rendered_problem.
65: '</td></tr></table>');
66: ##
67: ## Analyze the problem
68: my $PerformanceData =
69: &Apache::loncoursedata::get_optionresponse_data
70: (undef,$symb,$resid);
71: if (defined($PerformanceData) &&
72: ref($PerformanceData) eq 'ARRAY') {
73: my $analysis_html = &DoTriesAnalysis($PerformanceData,$ORdata);
74: $r->print($analysis_html);
75: } else {
76: $r->print('<h2>'.
77: &mt('There is no student data for this problem.').
78: '</h2>');
79: }
80: } else {
81: $r->print('resource is undefined');
82: }
83: $r->print('<hr />');
84: } else {
85: $r->print('<h3>No Problem Selected</h3>');
86: }
87: # Okay, they asked for data, so make sure we get the latest data.
88: $r->print(&OptionResponseProblemSelector());
89: }
90:
91:
92: sub DoTriesAnalysis {
93: my ($PerformanceData,$ORdata) = @_;
94: my $mintries = 1;
95: my $maxtries = 3;
96: my %ResponseData = &analyze_option_data_by_tries($PerformanceData,
97: $mintries,$maxtries);
98: my @Foils = sort(keys(%ResponseData));
99: my %Row_Label;
100: foreach my $foilid (@Foils) {
101: my $value = $ORdata->{'Foiltext'}->{$foilid};
102: # &Apache::lonnet::logthis('row label '.$foilid.' = '.$value);
103: $Row_Label{$foilid} = $ORdata->{'Foiltext'}->{$foilid};
104: }
105: my @Rows;
106: $Rows[0] = ['<td> </td>'];
107: for (my $i=$mintries;$i<=$maxtries;$i++) {
108: push (@{$Rows[0]},
109: '<th colspan="3">'.&mt('Attempt').' '.$i.'</th>');
110: }
111: $Rows[1] = ['<th>'.&mt('Foil').'</th>'];
112: for (my $i=$mintries;$i<=$maxtries;$i++) {
113: push (@{$Rows[1]},('<th>'.&mt('Correct').'</th>',
114: '<th>'.&mt('Incorrect').'</th>',
115: '<th>'.&mt('Percent Correct').'</th>',
116: ));
117: }
118: my @PlotData;
119: my @CumulativePlotData;
120: my $index = 1;
121: foreach my $foilid (@Foils) {
122: my @Data = ('<td>'.$index.' '.$Row_Label{$foilid}.'</td>');
123: for (my $i=$mintries;$i<=$maxtries;$i++) {
124: push(@Data,
125: ('<td>'.$ResponseData{$foilid}->[$i]->{'correct'}.'</td>',
126: '<td>'.$ResponseData{$foilid}->[$i]->{'incorrect'}.
127: '</td>',
128: '<td>'.
129: sprintf("%4.2f",
130: $ResponseData{$foilid}->[$i]->{'percent_corr'}).
131: '</td>'));
132: #
133: # Gather the per-attempt data
134: push (@{$PlotData[$i]->{'good'}},
135: $ResponseData{$foilid}->[$i]->{'percent_corr'});
136: push (@{$PlotData[$i]->{'bad'}},
137: 100-$ResponseData{$foilid}->[$i]->{'percent_corr'});
138: }
139: for (my $i=0;$i<=$maxtries;$i++) {
140: push (@{$CumulativePlotData[$i]->{'good'}},
141: $CumulativePlotData[-1]->{'good'}+
142: $ResponseData{$foilid}->[$i]->{'correct'});
143: push (@{$CumulativePlotData[$i]->{'bad'}},
144: $CumulativePlotData[-1]->{'bad'}+
145: $ResponseData{$foilid}->[$i]->{'incorrect'});
146: }
147: push(@Rows,\@Data);
148: } continue {
149: $index++;
150: }
151: my @Data = ('<td></td>');
152: for (my $i=$mintries;$i<=$maxtries;$i++) {
153: push(@Data,'<td colspan="3">'.&DrawGraph('Attempt '.$i,'Foil Number',
154: 'Percent Correct',100,
155: $PlotData[$i]->{'good'},
156: $PlotData[$i]->{'bad'}).'</td>');
157: }
158: push (@Rows,\@Data);
159: my $table = '<table border="1" >'."\n";
160: for (my $i=0; $i <=$#Rows;$i++) {
161: $table .= '<tr>'.join('',@{$Rows[$i]})."</tr>\n";
162: }
163: $table .= '</table>';
164: return ($table);
165: }
166:
167: sub analyze_option_data_by_tries {
168: my ($PerformanceData,$mintries,$maxtries) = @_;
169: my %Trydata;
170: $mintries = 1 if (! defined($mintries) || $mintries < 1);
171: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
172: foreach my $row (@$PerformanceData) {
173: next if (! defined($row));
174: my ($grading,$submission,$time,$tries) = @$row;
175: my @Foilgrades = split('&',$grading);
176: my @Foilsubs = split('&',$submission);
177: for (my $numtries = 1; $numtries <= $maxtries; $numtries++) {
178: if ($tries == $numtries) {
179: foreach my $foilgrade (@Foilgrades) {
180: my ($foilid,$correct) = split('=',$foilgrade);
181: if ($correct) {
182: $Trydata{$foilid}->[$numtries]->{'correct'}++;
183: } else {
184: $Trydata{$foilid}->[$numtries]->{'incorrect'}++;
185: }
186: }
187: }
188: }
189: }
190: foreach my $foilid (keys(%Trydata)) {
191: foreach my $tryhash (@{$Trydata{$foilid}}) {
192: next if ((! exists($tryhash->{'correct'}) &&
193: ! exists($tryhash->{'incorrect'})) ||
194: ($tryhash->{'correct'} < 1 &&
195: $tryhash->{'incorrect'} < 1));
196: $tryhash->{'percent_corr'} = 100 *
197: ($tryhash->{'correct'} /
198: ($tryhash->{'correct'} + $tryhash->{'incorrect'})
199: );
200: }
201: }
202: return %Trydata;
203: }
204:
205: sub DrawGraph {
206: my ($title,$xlabel,$ylabel,$MaxY,$values1,$values2)=@_;
207: if (! defined($values1) || ref($values1) ne 'ARRAY') {
208: return '';
209: }
210: $title = '' if (! defined($title));
211: $xlabel = '' if (! defined($xlabel));
212: $ylabel = '' if (! defined($ylabel));
213: $title = &Apache::lonnet::escape($title);
214: $xlabel = &Apache::lonnet::escape($xlabel);
215: $ylabel = &Apache::lonnet::escape($ylabel);
216: #
217: my $sendValues1 = join(',', @$values1);
218: my $sendValues2;
219: if (defined($values2)) {
220: $sendValues2 = join(',', @$values2);
221: }
222:
223: my $sendCount = scalar(@$values1);
224: $MaxY =1 if ($MaxY < 1);
225: if ( int($MaxY) < $MaxY ) {
226: $MaxY++;
227: $MaxY = int($MaxY);
228: }
229: my @GData = ($title,$xlabel,$ylabel,$MaxY,$sendCount,$sendValues1);
230: if (defined($sendValues2)) {
231: push (@GData,$sendValues2);
232: }
233: return '<IMG src="/cgi-bin/graph.png?'.
234: (join('&', @GData)).'" border="1" />';
235: }
236:
237:
238:
239: sub get_problem_symb {
240: my $problemstring = shift();
241: my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/);
242: return ($symb,$partid,$resid);
243: }
244:
245: sub CreateInterface {
246: my $Str = '';
247: $Str .= '<table cellspacing="5">'."\n";
248: $Str .= '<tr>';
249: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
250: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
251: $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
252: $Str .= '</tr>'."\n";
253: #
254: $Str .= '<tr><td align="center">'."\n";
255: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
256: $Str .= '</td><td align="center">';
257: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
258: $Str .= '</td><td align="center">';
259: my $only_seq_with_assessments = sub {
260: my $s=shift;
261: if ($s->{'num_assess'} < 1) {
262: return 0;
263: } else {
264: return 1;
265: }
266: };
267: $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
268: $only_seq_with_assessments);
269: $Str .= '</td></tr>'."\n";
270: $Str .= '</table>'."\n";
271: $Str .= '<input type="submit" name="ProblemAnalysis" value="'.
272: &mt('Analyze Problem').'" />';
273: $Str .= ' 'x5;
274: $Str .= '<input type="submit" name="ClearCache" value="'.
275: &mt('Clear Caches').'" />';
276: $Str .= ' 'x5;
277: return ($Str);
278: }
279:
280: sub OptionResponseProblemSelector {
281: my $Str;
282: $Str = "\n<table>\n";
283: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
284: next if ($seq->{'num_assess'}<1);
285: my $seq_str = '';
286: foreach my $res (@{$seq->{'contents'}}) {
287: # &Apache::lonnet::logthis('checking '.$res->{'title'});
288: next if ($res->{'type'} ne 'assessment');
289: foreach my $part (@{$res->{'parts'}}) {
290: my $partdata = $res->{'partdata'}->{$part};
291: if (! exists($partdata->{'option'}) ||
292: $partdata->{'option'} == 0) {
293: next;
294: }
295: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
296: my $respid = $partdata->{'ResponseIds'}->[$i];
297: my $resptype = $partdata->{'ResponseTypes'}->[$i];
298: if ($resptype eq 'option') {
299: my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid);
300: my $checked = '';
301: if ($ENV{'form.problemchoice'} eq $value) {
302: $checked = 'checked ';
303: }
304: $seq_str .= '<tr><td>'.
305: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
306: '</td><td>'.
307: '<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
308: if ($partdata->{'option'} > 1) {
309: $seq_str .= &mt('response').' '.$respid;
310: }
311: $seq_str .= "</td></tr>\n";
312: }
313: }
314: }
315: }
316: if ($seq_str ne '') {
317: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
318: "</tr>\n".$seq_str;
319: }
320: }
321: $Str .= "</table>\n";
322: return $Str;
323: }
324:
325: sub get_resource_from_symb {
326: my ($symb) = @_;
327: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
328: foreach my $res (@{$seq->{'contents'}}) {
329: if ($res->{'symb'} eq $symb) {
330: return $res;
331: }
332: }
333: }
334: return undef;
335: }
336:
337: sub get_problem_data {
338: my ($url) = @_;
339: # my $Answ=&Apache::lonnet::ssi($URI,('grade_target' => 'analyze',
340: # 'grade_username' => $sname,
341: # 'grade_domain' => $sdom,
342: # 'grade_courseid' => $cid,
343: # 'grade_symb' => $symb));
344: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
345: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
346: my %Answer;
347: %Answer=&Apache::lonnet::str2hash($Answ);
348: # &Apache::lonnet::logthis('keys of %Answer = '.join(', ',(keys(%Answer))));
349: # &Apache::lonnet::logthis('$Answer{parts} = '.
350: # join(', ',@{$Answer{'parts'}}));
351: my %Partdata;
352: foreach my $part (@{$Answer{'parts'}}) {
353: while (my($key,$value) = each(%Answer)) {
354: next if ($key !~ /^$part/);
355: $key =~ s/^$part\.//;
356: if (ref($value) eq 'ARRAY') {
357: if ($key eq 'options') {
358: $Partdata{$part}->{'Options'}=$value;
359: } elsif ($key eq 'concepts') {
360: $Partdata{$part}->{'Concepts'}=$value;
361: } elsif ($key =~ /^concept\.(.*)$/) {
362: my $concept = $1;
363: foreach my $foil (@$value) {
364: $Partdata{$part}->{$foil}->{'Concept'}=$concept;
365: }
366: }
367: # &Apache::lonnet::logthis($part.' '.$key.' (array) = '.
368: # join(', ',@$value));
369: } else {
370: $value =~ s/^\s*//g;
371: $value =~ s/\s*$//g;
372: if ($key=~ /^foil\.text\.(.*)$/) {
373: my $foil = $1;
374: $Partdata{$part}->{'Foiltext'}->{$foil}=$value;
375: } elsif ($key =~ /^foil\.value\.(.*)$/) {
376: my $foil = $1;
377: $Partdata{$part}->{'FoilValues'}->{$foil}=$value;
378: }
379: # &Apache::lonnet::logthis($part.' '.$key.' = '.$value);
380: }
381: }
382: }
383:
384: # my $parts='';
385: # foreach my $elm (@{$Answer{"parts"}}) {
386: # $parts.="$elm,";
387: # }
388: # chop($parts);
389: # my $conc='';
390: # foreach my $elm (@{$Answer{"$parts.concepts"}}) {
391: # $conc.="$elm@";
392: # }
393: # chop($conc);
394: #
395: # @Concepts=split(/\@/,$conc);
396: # foreach my $concept (@{$Answer{"$parts.concepts"}}) {
397: # foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) {
398: # $foil_to_concept{$foil} = $concept;
399: # #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"};
400: # }
401: # }
402: # return $symb;
403: return %Partdata;
404: }
405:
406: 1;
407:
408: __END__
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