Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.53
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.53 ! matthew 3: # $Id: lonproblemanalysis.pm,v 1.52 2003/12/15 16:23:00 matthew Exp $
1.1 stredwic 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: #
1.11 minaeibi 27: package Apache::lonproblemanalysis;
1.1 stredwic 28:
29: use strict;
30: use Apache::lonnet();
1.25 matthew 31: use Apache::loncommon();
1.7 stredwic 32: use Apache::lonhtmlcommon();
1.23 matthew 33: use Apache::loncoursedata();
34: use Apache::lonstatistics;
35: use Apache::lonlocal;
1.37 matthew 36: use HTML::Entities();
1.42 matthew 37: use Time::Local();
1.43 matthew 38: use Spreadsheet::WriteExcel();
1.2 stredwic 39:
1.40 matthew 40: my $plotcolors = ['#33ff00',
41: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
42: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
43: ];
1.39 matthew 44:
1.46 matthew 45: my @SubmitButtons = ({ name => 'ProblemAnalyis',
46: text => 'Analyze Problem Again' },
47: { name => 'ClearCache',
48: text => 'Clear Caches' },
49: { name => 'updatecaches',
50: text => 'Update Student Data' },
51: { name => 'SelectAnother',
1.53 ! matthew 52: text => 'Choose a different Problem' },
1.46 matthew 53: { name => 'ExcelOutput',
54: text => 'Produce Excel Output' });
55:
56: sub render_resource {
57: my ($resource) = @_;
58: ##
59: ## Render the problem
60: my $base;
61: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
62: $base = "http://".$ENV{'SERVER_NAME'}.$base;
63: my $rendered_problem =
64: &Apache::lonnet::ssi_body($resource->{'src'});
65: $rendered_problem =~ s/<\s*form\s*/<nop /g;
66: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
67: return '<table bgcolor="ffffff"><tr><td>'.
68: '<base href="'.$base.'" />'.
69: $rendered_problem.
70: '</td></tr></table>';
71: }
72:
1.1 stredwic 73: sub BuildProblemAnalysisPage {
1.23 matthew 74: my ($r,$c)=@_;
1.49 matthew 75: #
76: my %Saveable_Parameters = ('Status' => 'scalar',
77: 'Section' => 'array',
78: 'NumPlots' => 'scalar',
79: 'AnalyzeAs' => 'scalar',
80: 'AnalyzeOver' => 'scalar',
81: );
82: &Apache::loncommon::store_course_settings('problem_analysis',
83: \%Saveable_Parameters);
84: &Apache::loncommon::restore_course_settings('problem_analysis',
85: \%Saveable_Parameters);
86: #
87: &Apache::lonstatistics::PrepareClasslist();
1.48 matthew 88: #
1.24 matthew 89: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
1.25 matthew 90: $r->print(&CreateInterface());
1.28 matthew 91: #
92: my @Students = @Apache::lonstatistics::Students;
93: #
1.46 matthew 94: if (@Students < 1) {
95: $r->print('<h2>There are no students in the sections selected</h2>');
96: }
97: #
98: &Apache::loncoursedata::clear_internal_caches();
1.41 matthew 99: if (exists($ENV{'form.ClearCache'}) ||
100: exists($ENV{'form.updatecaches'}) ||
1.33 matthew 101: (exists($ENV{'form.firstanalysis'}) &&
102: $ENV{'form.firstanalysis'} ne 'no')) {
103: &Apache::lonstatistics::Gather_Full_Student_Data($r);
104: }
105: if (! exists($ENV{'form.firstanalysis'})) {
106: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
107: } else {
108: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
109: }
1.39 matthew 110: $r->rflush();
1.46 matthew 111: #
1.33 matthew 112: if (exists($ENV{'form.problemchoice'}) &&
113: ! exists($ENV{'form.SelectAnother'})) {
1.46 matthew 114: foreach my $button (@SubmitButtons) {
115: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
116: 'value="'.&mt($button->{'text'}).'" />');
117: $r->print(' 'x5);
118: }
1.31 matthew 119: $r->print('<input type="hidden" name="problemchoice" value="'.
120: $ENV{'form.problemchoice'}.'" />');
121: #
1.25 matthew 122: $r->print('<hr />');
1.23 matthew 123: #
1.47 matthew 124: my ($symb,$part,$resid,$resptype) = &get_problem_symb(
1.46 matthew 125: &Apache::lonnet::unescape($ENV{'form.problemchoice'}));
1.43 matthew 126: $r->rflush();
1.28 matthew 127: #
1.23 matthew 128: my $resource = &get_resource_from_symb($symb);
1.47 matthew 129: if (! defined($resource) || ! defined($resptype)) {
1.46 matthew 130: $r->print('resource is undefined');
131: } else {
1.44 matthew 132: $r->print('<h1>'.$resource->{'title'}.'</h1>');
1.41 matthew 133: $r->print('<h3>'.$resource->{'src'}.'</h3>');
1.47 matthew 134: $r->print(&render_resource($resource));
1.44 matthew 135: $r->rflush();
1.48 matthew 136: my %Data = &get_problem_data($resource->{'src'});
137: my $ProblemData = $Data{$part.'.'.$resid};
1.47 matthew 138: if ($resptype eq 'option') {
139: &OptionResponseAnalysis($r,$resource,$resid,$ProblemData,
140: \@Students);
141: } elsif ($resptype eq 'radiobutton') {
1.48 matthew 142: &RadioResponseAnalysis($r,$resource,$part,$resid,$ProblemData,
1.47 matthew 143: \@Students);
144: } else {
145: $r->print('<h2>This analysis is not supported</h2>');
146: }
1.7 stredwic 147: }
1.23 matthew 148: $r->print('<hr />');
1.25 matthew 149: } else {
1.31 matthew 150: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
151: &mt('Analyze Problem').'" />');
152: $r->print(' 'x5);
1.27 matthew 153: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.46 matthew 154: $r->print(&ProblemSelector());
1.1 stredwic 155: }
156: }
157:
1.48 matthew 158: =pod
159:
160: Removed code:
1.47 matthew 161:
162: #########################################################
163: #########################################################
164: ##
165: ## Radio Response Routines
166: ##
167: #########################################################
168: #########################################################
169: sub RadioResponseAnalysis {
1.48 matthew 170: my ($r,$resource,$part,$respid,$ProblemData,$Students) = @_;
171: my $analysis_html;
1.47 matthew 172: my $PerformanceData =
173: &Apache::loncoursedata::get_response_data
1.48 matthew 174: ($Students,$resource->{'symb'},$respid);
175: if (! defined($PerformanceData) ||
176: ref($PerformanceData) ne 'ARRAY' ) {
177: $analysis_html = '<h2>'.
178: &mt('There is no submission data for this resource').
179: '</h2>';
180: $r->print($analysis_html);
1.47 matthew 181: return;
182: }
1.48 matthew 183: if (exists($ENV{'form.ExcelOutput'})) {
184: $analysis_html .= &RR_Excel_output($r,$resource,$PerformanceData,
185: $ProblemData);
186: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
187: $analysis_html .= &RR_Tries_Analysis($r,$resource,$PerformanceData,
188: $ProblemData);
189: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
190: $analysis_html .= &RR_Time_Analysis($r,$resource,$PerformanceData,
191: $ProblemData);
192: } else {
193: $analysis_html .= '<h2>'.
194: &mt('The analysis you have selected is not supported at this time').
195: '</h2>';
196: }
197: $r->print($analysis_html);
198: }
199:
200:
201: sub RR_Excel_output {
202: my ($r,$PerformanceData,$ProblemData) = @_;
203: return '<h1>No!</h1>';
204: }
205:
206: sub RR_Tries_Analysis {
207: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
208: my $analysis_html;
209: my $mintries = 1;
210: my $maxtries = $ENV{'form.NumPlots'};
211: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
212: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
213: $table = '<h3>'.
214: &mt('Not enough data for concept analysis. '.
215: 'Performing Foil Analysis').
216: '</h3>'.$table;
217: $ENV{'form.AnalyzeAs'} = 'Foils';
218: }
219: $analysis_html .= $table;
220: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
221: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
222: $analysis_html = &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
223: \@TryData,$ProblemData);
224: } else {
225: $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
226: $Concepts,
227: \@TryData,
228: $ProblemData);
229: }
230: return $analysis_html;
231: }
232:
233: sub RR_tries_data_analysis {
234: my ($r,$Attempt_data) = @_;
235: my @TryData;
236: foreach my $attempt (@$Attempt_data) {
237: my %Attempt = &hashify_attempt($attempt);
238: my ($answer,undef) = split('=',$Attempt{'submission'});
239: $TryData[$Attempt{'tries'}]->{$answer}++;
240: }
241: return @TryData;
242: }
243:
244: sub RR_Time_Analysis {
245: my ($r,$PerformanceData,$ProblemData) = @_;
246: my $html;
247: return $html;
248: }
249:
250: sub RR_Tries_Foil_Analysis {
251: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
252: my $html;
253: #
254: # Compute the data neccessary to make the plots
255: for (my $try=$min;$try<=$max;$try++) {
256: my @PlotData_Correct;
257: my @PlotData_Incorrect;
258: next if ($try > scalar(@{$TryData}));
259: next if (! defined($TryData->[$try-1]));
260: my %DataSet = %{$TryData->[$try-1]};
261: my $total = 0;
262: foreach my $foilid (@$Foils) {
263: $total += $DataSet{$foilid};
264: }
265: foreach my $foilid (@$Foils) {
266: if ($total == 0) {
267: push (@PlotData_Correct,0);
268: push (@PlotData_Incorrect,0);
269: } else {
270: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
271: push (@PlotData_Correct,
272: int(100*$DataSet{$foilid}/$total));
273: push (@PlotData_Incorrect,0);
274: } else {
275: push (@PlotData_Correct,0);
276: push (@PlotData_Incorrect,
277: int(100*$DataSet{$foilid}/$total));
278: }
279: }
280: }
281: my $title='Attempt '.$try;
282: my $xlabel = $total.' Submissions';
283: $html.= &Apache::loncommon::DrawBarGraph($title,
284: $xlabel,
285: 'Percent Choosing',
286: 100,
287: ['#33ff00','#ff3300'],
288: \@PlotData_Correct,
289: \@PlotData_Incorrect);
290: }
291: &Apache::lonnet::logthis('plot = '.$html);
292: return $html;
293: }
294:
295: sub RR_Tries_Concept_Analysis {
296: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
297: my $html;
298: return $html;
299: }
300:
301: sub RR_Time_Foil_Analysis {
302: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
303: my $html;
304: return $html;
305: }
306:
307: sub RR_Time_Concept_Analysis {
308: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
309: my $html;
310: return $html;
311: }
312:
313:
314:
315: sub get_Radio_problem_data {
316: my ($url) = @_;
317: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
318: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
319: my %Answer = &Apache::lonnet::str2hash($Answ);
320: my %Partdata;
321: &Apache::lonnet::logthis('url = '.$url);
322: foreach my $part (@{$Answer{'parts'}}) {
323: while (my($key,$value) = each(%Answer)) {
324: # if (ref($value) eq 'ARRAY') {
325: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
326: # } else {
327: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
328: # }
329: next if ($key !~ /^$part/);
330: $key =~ s/^$part\.//;
331: if ($key eq 'foils') {
332: $Partdata{$part}->{'_Foils'}=$value;
333: } elsif ($key eq 'options') {
334: $Partdata{$part}->{'_Options'}=$value;
335: } elsif ($key eq 'shown') {
336: $Partdata{$part}->{'_Shown'}=$value;
337: } elsif ($key =~ /^foil.value.(.*)$/) {
338: $Partdata{$part}->{$1}->{'value'}=$value;
339: } elsif ($key =~ /^foil.text.(.*)$/) {
340: $Partdata{$part}->{$1}->{'text'}=$value;
341: }
342: }
343: }
344: return %Partdata;
1.47 matthew 345: }
1.48 matthew 346:
347: =cut
348:
349:
1.33 matthew 350: #########################################################
351: #########################################################
352: ##
1.46 matthew 353: ## Option Response Routines
1.33 matthew 354: ##
355: #########################################################
356: #########################################################
1.46 matthew 357: sub OptionResponseAnalysis {
358: my ($r,$resource,$resid,$ProblemData,$Students) = @_;
359: my $PerformanceData =
1.47 matthew 360: &Apache::loncoursedata::get_response_data
1.46 matthew 361: ($Students,$resource->{'symb'},$resid);
362: if (! defined($PerformanceData) ||
363: ref($PerformanceData) ne 'ARRAY' ) {
364: $r->print('<h2>'.
365: &mt('There is no student data for this problem.').
366: '</h2>');
367: } else {
368: $r->rflush();
369: if (exists($ENV{'form.ExcelOutput'})) {
370: my $result = &prepare_optionresponse_excel_sheet($r,$resource,
371: $PerformanceData,
372: $ProblemData);
373: $r->print($result);
374: $r->rflush();
1.39 matthew 375: } else {
1.46 matthew 376: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
377: my $analysis_html = &tries_analysis($r,
378: $PerformanceData,
379: $ProblemData);
380: $r->print($analysis_html);
381: $r->rflush();
382: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
383: my $analysis_html = &time_analysis($PerformanceData,
384: $ProblemData);
385: $r->print($analysis_html);
386: $r->rflush();
1.39 matthew 387: } else {
1.46 matthew 388: $r->print('<h2>'.
389: &mt('The analysis you have selected is '.
390: 'not supported at this time').
391: '</h2>');
392: }
1.36 matthew 393: }
1.39 matthew 394: }
395: }
396:
1.33 matthew 397: #########################################################
1.46 matthew 398: #
399: # Option Response: Tries Analysis
400: #
1.33 matthew 401: #########################################################
402: sub tries_analysis {
1.43 matthew 403: my ($r,$PerformanceData,$ORdata) = @_;
1.33 matthew 404: my $mintries = 1;
405: my $maxtries = $ENV{'form.NumPlots'};
1.39 matthew 406: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
407: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
408: $table = '<h3>'.
409: &mt('Not enough data for concept analysis. '.
410: 'Performing Foil Analysis').
411: '</h3>'.$table;
412: $ENV{'form.AnalyzeAs'} = 'Foils';
413: }
1.43 matthew 414: my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData,
1.36 matthew 415: $mintries,$maxtries);
1.42 matthew 416: my $analysis = '';
417: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
418: $analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils,
419: \%ResponseData,$ORdata);
420: } else {
421: $analysis = &Tries_Concept_Analysis($mintries,$maxtries,
422: $Concepts,\%ResponseData,$ORdata);
423: }
424: $table .= $analysis;
425: return $table;
426: }
427:
428: sub Tries_Foil_Analysis {
429: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
430: my %ResponseData = %$respdat;
1.31 matthew 431: #
432: # Compute the data neccessary to make the plots
1.42 matthew 433: my @PlotData;
434: foreach my $foilid (@$Foils) {
435: for (my $i=$mintries;$i<=$maxtries;$i++) {
436: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
437: push(@{$PlotData[$i]->{'_correct'}},0);
438: } else {
439: push(@{$PlotData[$i]->{'_correct'}},
440: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
441: $ResponseData{$foilid}->[$i]->{'_total'});
442: }
1.48 matthew 443: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 444: push(@{$PlotData[$i]->{'_total'}},
445: $ResponseData{$foilid}->[$i]->{'_total'});
446: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
447: push (@{$PlotData[$i]->{$option}},0);
448: } else {
449: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
450: $ResponseData{$foilid}->[$i]->{'_correct'}) {
451: push(@{$PlotData[$i]->{$option}},0);
1.39 matthew 452: } else {
453: push (@{$PlotData[$i]->{$option}},
454: 100 * $ResponseData{$foilid}->[$i]->{$option} /
1.42 matthew 455: ($ResponseData{$foilid}->[$i]->{'_total'} -
456: $ResponseData{$foilid}->[$i]->{'_correct'}));
1.39 matthew 457: }
1.36 matthew 458: }
459: }
460: }
1.42 matthew 461: }
462: #
463: # Build a table for the plots
464: my $analysis_html = "<table>\n";
465: my $foilkey = &build_option_index($ORdata);
466: for (my $i=$mintries;$i<=$maxtries;$i++) {
467: my $count = $ResponseData{'_total'}->[$i];
468: if ($count == 0) {
469: $count = 'no submissions';
470: } elsif ($count == 1) {
471: $count = '1 submission';
472: } else {
473: $count = $count.' submissions';
474: }
475: my $title = 'Attempt '.$i.', '.$count;
476: my @Datasets;
1.48 matthew 477: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
1.42 matthew 478: next if (! exists($PlotData[$i]->{$option}));
479: push(@Datasets,$PlotData[$i]->{$option});
480: }
1.46 matthew 481: my $correctgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 482: ($title,'Foil Number','Percent Correct',
483: 100,$plotcolors,$Datasets[0]);
484: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
485: ##
486: ##
487: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
488: $Datasets[0]->[$i]=0;
489: }
490: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
491: if ($count == 0) {
492: $count = 'no submissions';
493: } elsif ($count == 1) {
494: $count = '1 submission';
495: } else {
496: $count = $count.' submissions';
497: }
498: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 499: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 500: ($title,'Foil Number','% Option Chosen Incorrectly',
501: 100,$plotcolors,@Datasets);
502: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
503: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
504: }
505: $analysis_html .= "</table>\n";
506: return $analysis_html;
507: }
508:
509: sub Tries_Concept_Analysis {
510: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
511: my %ResponseData = %$respdat;
512: my $analysis_html = "<table>\n";
513: #
514: # Compute the data neccessary to make the plots
515: my @PlotData;
516: # Concept analysis
517: #
518: # Note: we do not bother with characterizing the students incorrect
519: # answers at the concept level because an incorrect answer for one foil
520: # may be a correct answer for another foil.
521: my %ConceptData;
522: foreach my $concept (@{$Concepts}) {
523: for (my $i=$mintries;$i<=$maxtries;$i++) {
524: #
525: # Gather the per-attempt data
526: my $cdata = $ConceptData{$concept}->[$i];
527: foreach my $foilid (@{$concept->{'foils'}}) {
528: $cdata->{'_correct'} +=
529: $ResponseData{$foilid}->[$i]->{'_correct'};
530: $cdata->{'_total'} +=
531: $ResponseData{$foilid}->[$i]->{'_total'};
532: }
533: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
534: if ($cdata->{'_total'} == 0) {
535: push (@{$PlotData[$i]->{'_correct'}},0);
536: } else {
537: push (@{$PlotData[$i]->{'_correct'}},
538: 100*$cdata->{'_correct'}/$cdata->{'_total'});
1.36 matthew 539: }
1.25 matthew 540: }
1.42 matthew 541: }
1.31 matthew 542: # Build a table for the plots
1.25 matthew 543: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.39 matthew 544: my $minstu = $PlotData[$i]->{'_total'}->[0];
545: my $maxstu = $PlotData[$i]->{'_total'}->[0];
546: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
1.36 matthew 547: if ($minstu > $count) {
548: $minstu = $count;
1.27 matthew 549: }
1.36 matthew 550: if ($maxstu < $count) {
551: $maxstu = $count;
1.27 matthew 552: }
553: }
1.39 matthew 554: $maxstu = 0 if (! defined($maxstu));
555: $minstu = 0 if (! defined($minstu));
1.35 matthew 556: my $title;
1.42 matthew 557: my $count = $ResponseData{'_total'}->[$i];
558: if ($count == 0) {
559: $count = 'no submissions';
560: } elsif ($count == 1) {
561: $count = '1 submission';
1.27 matthew 562: } else {
1.42 matthew 563: $count = $count.' submissions';
1.39 matthew 564: }
1.42 matthew 565: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 566: my $graphlink = &Apache::loncommon::DrawBarGraph
1.42 matthew 567: ($title,'Concept Number','Percent Correct',
568: 100,$plotcolors,$PlotData[$i]->{'_correct'});
569: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
1.25 matthew 570: }
1.42 matthew 571: $analysis_html .= "</table>\n";
572: return $analysis_html;
1.25 matthew 573: }
574:
575: sub analyze_option_data_by_tries {
1.43 matthew 576: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 577: my %Trydata;
578: $mintries = 1 if (! defined($mintries) || $mintries < 1);
579: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 580: foreach my $row (@$PerformanceData) {
581: next if (! defined($row));
1.47 matthew 582: my $tries = &get_tries_from_row($row);
1.46 matthew 583: my %Row = &Process_OR_Row($row);
1.43 matthew 584: next if (! %Row);
1.42 matthew 585: while (my ($foilid,$href) = each(%Row)) {
586: if (! ref($href)) {
587: $Trydata{$foilid}->[$tries] += $href;
588: next;
589: }
590: while (my ($option,$value) = each(%$href)) {
591: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1.25 matthew 592: }
593: }
594: }
595: return %Trydata;
596: }
597:
1.33 matthew 598: #########################################################
1.46 matthew 599: #
600: # Option Response: Time Analysis
601: #
1.33 matthew 602: #########################################################
603: sub time_analysis {
604: my ($PerformanceData,$ORdata) = @_;
1.42 matthew 605: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
606: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
607: $table = '<h3>'.
608: &mt('Not enough data for concept analysis. '.
609: 'Performing Foil Analysis').
610: '</h3>'.$table;
611: $ENV{'form.AnalyzeAs'} = 'Foils';
612: }
1.33 matthew 613: my $num_plots = $ENV{'form.NumPlots'};
614: my $num_data = scalar(@$PerformanceData)-1;
615: my $percent = sprintf('%2f',100/$num_plots);
1.42 matthew 616: #
1.37 matthew 617: $table .= "<table>\n";
1.33 matthew 618: for (my $i=0;$i<$num_plots;$i++) {
1.42 matthew 619: ##
1.34 matthew 620: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
621: ('startdate_'.$i);
622: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
623: ('enddate_'.$i);
624: if (! defined($starttime) || ! defined($endtime)) {
1.42 matthew 625: my $sec_in_day = 86400;
1.47 matthew 626: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
1.42 matthew 627: my ($sday,$smon,$syear);
628: (undef,undef,undef,$sday,$smon,$syear) =
629: localtime($last_sub_time - $sec_in_day*$i);
630: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
631: $endtime = $starttime + $sec_in_day;
632: if ($i == ($num_plots -1 )) {
1.47 matthew 633: $starttime = &get_time_from_row($PerformanceData->[0]);
1.42 matthew 634: }
635: }
1.34 matthew 636: my $startdateform = &Apache::lonhtmlcommon::date_setter
637: ('Statistics','startdate_'.$i,$starttime);
638: my $enddateform = &Apache::lonhtmlcommon::date_setter
639: ('Statistics','enddate_'.$i,$endtime);
1.42 matthew 640: #
641: my $begin_index;
642: my $end_index;
643: my $j;
644: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 645: last if (&get_time_from_row($PerformanceData->[$j])
1.46 matthew 646: > $starttime);
1.42 matthew 647: }
648: $begin_index = $j;
649: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 650: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
1.42 matthew 651: }
652: $end_index = $j;
653: ##
654: my $interval = {
655: begin_index => $begin_index,
656: end_index => $end_index,
657: startdateform => $startdateform,
658: enddateform => $enddateform,
659: };
660: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
661: $table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
662: $interval);
663: } else {
664: $table .= &Concept_Time_Analysis($PerformanceData,$ORdata,
665: $Concepts,$interval);
666: }
1.33 matthew 667: }
1.42 matthew 668: #
1.33 matthew 669: return $table;
670: }
671:
1.42 matthew 672: sub Foil_Time_Analysis {
673: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
674: my $analysis_html;
675: my $foilkey = &build_option_index($ORdata);
676: my ($begin_index,$end_index) = ($interval->{'begin_index'},
677: $interval->{'end_index'});
1.33 matthew 678: my %TimeData;
679: #
680: # Compute the number getting the foils correct or incorrects
1.42 matthew 681: for (my $j=$begin_index;$j<=$end_index;$j++) {
682: my $row = $PerformanceData->[$j];
1.33 matthew 683: next if (! defined($row));
1.46 matthew 684: my %Row = &Process_OR_Row($row);
1.42 matthew 685: while (my ($foilid,$href) = each(%Row)) {
686: if (! ref($href)) {
687: $TimeData{$foilid} += $href;
688: next;
689: }
690: while (my ($option,$value) = each(%$href)) {
691: $TimeData{$foilid}->{$option}+=$value;
1.33 matthew 692: }
693: }
694: }
1.39 matthew 695: my @Plotdata;
1.42 matthew 696: foreach my $foil (@$Foils) {
697: my $total = $TimeData{$foil}->{'_total'};
698: if ($total == 0) {
699: push(@{$Plotdata[0]},0);
700: } else {
701: push(@{$Plotdata[0]},
702: 100 * $TimeData{$foil}->{'_correct'} / $total);
703: }
704: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
705: my $optionidx = 1;
1.48 matthew 706: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 707: if ($total_incorrect == 0) {
708: push(@{$Plotdata[$optionidx]},0);
709: } else {
710: push(@{$Plotdata[$optionidx]},
711: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
1.37 matthew 712: }
1.42 matthew 713: } continue {
714: $optionidx++;
1.39 matthew 715: }
1.42 matthew 716: }
717: #
718: # Create the plot
719: my $count = $end_index-$begin_index;
720: my $title;
721: if ($count == 0) {
722: $title = 'no submissions';
723: } elsif ($count == 1) {
724: $title = 'one submission';
1.39 matthew 725: } else {
1.42 matthew 726: $title = $count.' submissions';
727: }
1.46 matthew 728: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
729: 'Foil Number',
730: 'Percent Correct',
731: 100,
732: $plotcolors,
733: $Plotdata[0]);
1.42 matthew 734: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
735: $Plotdata[0]->[$j]=0;
736: }
737: $count = $end_index-$begin_index-$TimeData{'_correct'};
738: if ($count == 0) {
739: $title = 'no submissions';
740: } elsif ($count == 1) {
741: $title = 'one submission';
742: } else {
743: $title = $count.' submissions';
744: }
1.46 matthew 745: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 746: 'Foil Number',
747: 'Incorrect Option Choice',
748: 100,
749: $plotcolors,
750: @Plotdata);
751: $analysis_html.='<tr>'.
752: '<td>'.$correctplot.'</td>'.
753: '<td>'.$incorrectplot.'</td>'.
754: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
755: $analysis_html.= '<tr>'.'<td colspan="3">'.
756: '<b>Start Time</b>:'.
757: ' '.$interval->{'startdateform'}.'<br />'.
758: '<b>End Time</b> : '.
759: ' '.$interval->{'enddateform'}.'<br />'.
760: # '<b>Plot Title</b> :'.
761: # (" "x3).$interval->{'titleform'}.
762: '</td>'.
763: "</tr>\n";
764: return $analysis_html;
765: }
766:
767: sub Concept_Time_Analysis {
768: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
769: my $analysis_html;
770: ##
771: ## Determine starttime, endtime, startindex, endindex
772: my ($begin_index,$end_index) = ($interval->{'begin_index'},
773: $interval->{'end_index'});
774: my %TimeData;
775: #
776: # Compute the number getting the foils correct or incorrects
777: for (my $j=$begin_index;$j<=$end_index;$j++) {
778: my $row = $PerformanceData->[$j];
779: next if (! defined($row));
1.46 matthew 780: my %Row = &Process_OR_Row($row);
1.42 matthew 781: while (my ($foilid,$href) = each(%Row)) {
782: if (! ref($href)) {
783: $TimeData{$foilid} += $href;
784: next;
1.37 matthew 785: }
1.42 matthew 786: while (my ($option,$value) = each(%$href)) {
787: $TimeData{$foilid}->{$option}+=$value;
1.37 matthew 788: }
1.33 matthew 789: }
790: }
791: #
1.42 matthew 792: # Put the data in plottable form
793: my @Plotdata;
794: foreach my $concept (@$Concepts) {
795: my ($total,$correct);
796: foreach my $foil (@{$concept->{'foils'}}) {
797: $total += $TimeData{$foil}->{'_total'};
798: $correct += $TimeData{$foil}->{'_correct'};
799: }
800: if ($total == 0) {
801: push(@Plotdata,0);
802: } else {
803: push(@Plotdata,100 * $correct / $total);
804: }
805: }
806: #
1.33 matthew 807: # Create the plot
1.42 matthew 808: my $title = ($end_index - $begin_index).' submissions';
1.46 matthew 809: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 810: 'Concept Number',
811: 'Percent Correct',
812: 100,
813: $plotcolors,
814: \@Plotdata);
815: $analysis_html.='<tr>'.
816: '<td>'.$correctplot.'</td>'.
817: '<td align="left" valign="top">'.
818: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
819: '<b>End Time</b> : '.
820: ' '.$interval->{'enddateform'}.'<br />'.
821: # '<b>Plot Title</b> :'.(" "x3).
822: # $interval->{'titleform'}.
823: '</td>'.
824: "</tr>\n";
825: return $analysis_html;
826: }
827:
828: #########################################################
829: #########################################################
830: ##
831: ## Excel output
832: ##
833: #########################################################
834: #########################################################
1.46 matthew 835: sub prepare_optionresponse_excel_sheet {
1.43 matthew 836: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1.44 matthew 837: my $response = '';
1.42 matthew 838: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1.43 matthew 839: #
840: # Create excel worksheet
841: my $filename = '/prtspool/'.
842: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
843: time.'_'.rand(1000000000).'.xls';
844: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
845: if (! defined($workbook)) {
846: $r->log_error("Error creating excel spreadsheet $filename: $!");
847: $r->print('<p>'.&mt("Unable to create new Excel file. ".
848: "This error has been logged. ".
849: "Please alert your LON-CAPA administrator").
850: '</p>');
851: return undef;
852: }
853: #
854: $workbook->set_tempdir('/home/httpd/perl/tmp');
855: #
856: # Define some potentially useful formats
857: my $format;
858: $format->{'header'} = $workbook->add_format(bold => 1,
859: bottom => 1,
860: align => 'center');
861: $format->{'bold'} = $workbook->add_format(bold=>1);
862: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
863: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
864: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
865: $format->{'date'} = $workbook->add_format(num_format=>
866: 'mmm d yyyy hh:mm AM/PM');
867: #
868: # Create and populate main worksheets
869: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
870: my $student_data_sheet = $workbook->addworksheet('Student Data');
871: my $response_data_sheet = $workbook->addworksheet('Response Data');
872: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
873: $response_data_sheet) {
874: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
875: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
876: }
877: #
878: my $result;
879: $result = &build_problem_data_worksheet($problem_data_sheet,$format,
880: $Concepts,$ORdata);
881: if ($result ne 'okay') {
882: # Do something useful
883: }
884: $result = &build_student_data_worksheet($student_data_sheet,$format);
885: if ($result ne 'okay') {
886: # Do something useful
887: }
888: $result = &build_response_data_worksheet($response_data_sheet,$format,
889: $PerformanceData,$Foils,
890: $ORdata);
891: if ($result ne 'okay') {
892: # Do something useful
893: }
1.44 matthew 894: $response_data_sheet->activate();
1.43 matthew 895: #
896: # Close the excel file
897: $workbook->close();
898: #
899: # Write a link to allow them to download it
1.44 matthew 900: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
901: '<p><a href="'.$filename.'">'.
902: &mt('Your Excel spreadsheet.').
903: '</a></p>'."\n";
1.43 matthew 904: return $result;
905: }
906:
907: sub build_problem_data_worksheet {
908: my ($worksheet,$format,$Concepts,$ORdata) = @_;
909: my $rows_output = 3;
910: my $cols_output = 0;
911: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
912: ##
913: ##
914: my @Headers;
915: if (@$Concepts > 1) {
916: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
917: 'Foil Name','Foil Text','Correct value');
918: } else {
919: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
920: }
921: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1.48 matthew 922: my %Foildata = %{$ORdata->{'_Foils'}};
1.43 matthew 923: my $conceptindex = 1;
924: my $foilindex = 1;
925: foreach my $concept (@$Concepts) {
926: my @FoilsInConcept = @{$concept->{'foils'}};
927: my $firstfoil = shift(@FoilsInConcept);
928: if (@$Concepts > 1) {
929: $worksheet->write_row($rows_output++,0,
930: [$conceptindex,
931: $concept->{'name'},
932: $foilindex++,
933: $Foildata{$firstfoil}->{'name'},
934: $Foildata{$firstfoil}->{'text'},
935: $Foildata{$firstfoil}->{'value'},]);
936: } else {
937: $worksheet->write_row($rows_output++,0,
938: [ $foilindex++,
939: $Foildata{$firstfoil}->{'name'},
940: $Foildata{$firstfoil}->{'text'},
941: $Foildata{$firstfoil}->{'value'},]);
942: }
943: foreach my $foilid (@FoilsInConcept) {
944: if (@$Concepts > 1) {
945: $worksheet->write_row($rows_output++,0,
946: ['',
947: '',
948: $foilindex,
949: $Foildata{$foilid}->{'name'},
950: $Foildata{$foilid}->{'text'},
951: $Foildata{$foilid}->{'value'},]);
952: } else {
953: $worksheet->write_row($rows_output++,0,
954: [$foilindex,
955: $Foildata{$foilid}->{'name'},
956: $Foildata{$foilid}->{'text'},
957: $Foildata{$foilid}->{'value'},]);
958: }
959: } continue {
960: $foilindex++;
961: }
962: } continue {
963: $conceptindex++;
964: }
965: $rows_output++;
966: $rows_output++;
967: ##
968: ## Option data output
969: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1.48 matthew 970: foreach my $string (@{$ORdata->{'_Options'}}) {
1.43 matthew 971: $worksheet->write($rows_output++,0,$string);
972: }
973: return 'okay';
974: }
975:
976: sub build_student_data_worksheet {
977: my ($worksheet,$format) = @_;
978: my $rows_output = 3;
979: my $cols_output = 0;
980: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
981: my @Headers = ('full name','username','domain','section',
982: "student\nnumber",'identifier');
983: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
984: my @Students = @Apache::lonstatistics::Students;
985: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
986: my %ids;
987: foreach my $row (@$studentrows) {
988: my ($mysqlid,$student) = @$row;
989: $ids{$student}=$mysqlid;
990: }
991: foreach my $student (@Students) {
992: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
993: $worksheet->write_row($rows_output++,0,
994: [$student->{'fullname'},
995: $student->{'username'},$student->{'domain'},
996: $student->{'section'},$student->{'id'},
997: $ids{$name_domain}]);
998: }
999: return;
1000: }
1001:
1002: sub build_response_data_worksheet {
1003: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1004: my $rows_output = 3;
1005: my $cols_output = 0;
1006: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1007: $worksheet->set_column(1,1,20);
1008: $worksheet->set_column(2,2,13);
1009: my @Headers = ('identifier','time','award detail','attempt');
1010: foreach my $foil (@$Foils) {
1011: push (@Headers,$foil.' submission');
1012: push (@Headers,$foil.' grading');
1013: }
1014: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1015: #
1016: foreach my $row (@$PerformanceData) {
1017: next if (! defined($row));
1018: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1019: my @Foilgrades = split('&',$grading);
1020: my @Foilsubs = split('&',$submission);
1021: my %ResponseData;
1022: for (my $j=0;$j<=$#Foilgrades;$j++) {
1023: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1024: my (undef,$submission) = split('=',$Foilsubs[$j]);
1025: $submission = &Apache::lonnet::unescape($submission);
1026: $ResponseData{$foilid.' submission'}=$submission;
1027: $ResponseData{$foilid.' award'}=$correct;
1028: }
1029: $worksheet->write($rows_output,$cols_output++,$student);
1030: $worksheet->write($rows_output,$cols_output++,
1031: &calc_serial($time),$format->{'date'});
1032: $worksheet->write($rows_output,$cols_output++,$award);
1033: $worksheet->write($rows_output,$cols_output++,$tries);
1034: foreach my $foilid (@$Foils) {
1035: $worksheet->write($rows_output,$cols_output++,
1036: $ResponseData{$foilid.' submission'});
1037: $worksheet->write($rows_output,$cols_output++,
1038: $ResponseData{$foilid.' award'});
1039: }
1040: $rows_output++;
1041: $cols_output = 0;
1042: }
1043: return;
1.42 matthew 1044: }
1045:
1.43 matthew 1046:
1047: ##
1048: ## The following is copied from datecalc1.pl, part of the
1049: ## Spreadsheet::WriteExcel CPAN module.
1050: ##
1051: ##
1052: ######################################################################
1053: #
1054: # Demonstration of writing date/time cells to Excel spreadsheets,
1055: # using UNIX/Perl time as source of date/time.
1056: #
1057: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
1058: #
1059: ######################################################################
1060: #
1061: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
1062: # measured in seconds.
1063: #
1064: # An Excel file can use exactly one of two different date/time systems.
1065: # In these systems, a floating point number represents the number of days
1066: # (and fractional parts of the day) since a start point. The floating point
1067: # number is referred to as a 'serial'.
1068: # The two systems ('1900' and '1904') use different starting points:
1069: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
1070: # a leap year - see:
1071: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
1072: # for the excuse^H^H^H^H^H^Hreason.
1073: # '1904'; '1.00' is 2 Jan 1904.
1074: #
1075: # The '1904' system is the default for Apple Macs. Windows versions of
1076: # Excel have the option to use the '1904' system.
1077: #
1078: # Note that Visual Basic's "DateSerial" function does NOT erroneously
1079: # regard 1900 as a leap year, and thus its serials do not agree with
1080: # the 1900 serials of Excel for dates before 1 Mar 1900.
1081: #
1082: # Note that StarOffice (at least at version 5.2) does NOT erroneously
1083: # regard 1900 as a leap year, and thus its serials do not agree with
1084: # the 1900 serials of Excel for dates before 1 Mar 1900.
1085: #
1086: ######################################################################
1087: #
1088: # Calculation description
1089: # =======================
1090: #
1091: # 1900 system
1092: # -----------
1093: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
1094: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1095: # were leap years with an extra day.
1096: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
1097: # 1 Jan 1970.
1098: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
1099: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
1100: #
1101: # 1904 system
1102: # -----------
1103: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
1104: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1105: # were leap years with an extra day.
1106: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
1107: # 1 Jan 1970.
1108: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
1109: #
1110: ######################################################################
1111: #
1112: # Copyright (c) 2000, Andrew Benham.
1113: # This program is free software. It may be used, redistributed and/or
1114: # modified under the same terms as Perl itself.
1115: #
1116: # Andrew Benham, adsb@bigfoot.com
1117: # London, United Kingdom
1118: # 11 Nov 2000
1119: #
1120: ######################################################################
1121:
1122: # Use 1900 date system on all platforms other than Apple Mac (for which
1123: # use 1904 date system).
1124: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
1125:
1126: #-----------------------------------------------------------
1127: # calc_serial()
1128: #
1129: # Called with (up to) 2 parameters.
1130: # 1. Unix timestamp. If omitted, uses current time.
1131: # 2. GMT flag. Set to '1' to return serial in GMT.
1132: # If omitted, returns serial in appropriate timezone.
1133: #
1134: # Returns date/time serial according to $DATE_SYSTEM selected
1135: #-----------------------------------------------------------
1136: sub calc_serial {
1137: my $time = (defined $_[0]) ? $_[0] : time();
1138: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
1139:
1140: # Divide timestamp by number of seconds in a day.
1141: # This gives a date serial with '0' on 1 Jan 1970.
1142: my $serial = $time / 86400;
1143:
1144: # Adjust the date serial by the offset appropriate to the
1145: # currently selected system (1900/1904).
1146: if ($DATE_SYSTEM == 0) { # use 1900 system
1147: $serial += 25569;
1148: } else { # use 1904 system
1149: $serial += 24107;
1150: }
1151:
1152: unless ($gmtflag) {
1153: # Now have a 'raw' serial with the right offset. But this
1154: # gives a serial in GMT, which is false unless the timezone
1155: # is GMT. We need to adjust the serial by the appropriate
1156: # timezone offset.
1157: # Calculate the appropriate timezone offset by seeing what
1158: # the differences between localtime and gmtime for the given
1159: # time are.
1160:
1161: my @gmtime = gmtime($time);
1162: my @ltime = localtime($time);
1163:
1164: # For the first 7 elements of the two arrays, adjust the
1165: # date serial where the elements differ.
1166: for (0 .. 6) {
1167: my $diff = $ltime[$_] - $gmtime[$_];
1168: if ($diff) {
1169: $serial += _adjustment($diff,$_);
1170: }
1171: }
1172: }
1173:
1174: # Perpetuate the error that 1900 was a leap year by decrementing
1175: # the serial if we're using the 1900 system and the date is prior to
1176: # 1 Mar 1900. This has the effect of making serial value '60'
1177: # 29 Feb 1900.
1178:
1179: # This fix only has any effect if UNIX/Perl time on the platform
1180: # can represent 1900. Many can't.
1181:
1182: unless ($DATE_SYSTEM) {
1183: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
1184: }
1185: return $serial;
1186: }
1187:
1188: sub _adjustment {
1189: # Based on the difference in the localtime/gmtime array elements
1190: # number, return the adjustment required to the serial.
1191:
1192: # We only look at some elements of the localtime/gmtime arrays:
1193: # seconds unlikely to be different as all known timezones
1194: # have an offset of integral multiples of 15 minutes,
1195: # but it's easy to do.
1196: # minutes will be different for timezone offsets which are
1197: # not an exact number of hours.
1198: # hours very likely to be different.
1199: # weekday will differ when localtime/gmtime difference
1200: # straddles midnight.
1201: #
1202: # Assume that difference between localtime and gmtime is less than
1203: # 5 days, then don't have to do maths for day of month, month number,
1204: # year number, etc...
1205:
1206: my ($delta,$element) = @_;
1207: my $adjust = 0;
1208:
1209: if ($element == 0) { # Seconds
1210: $adjust = $delta/86400; # 60 * 60 * 24
1211: } elsif ($element == 1) { # Minutes
1212: $adjust = $delta/1440; # 60 * 24
1213: } elsif ($element == 2) { # Hours
1214: $adjust = $delta/24; # 24
1215: } elsif ($element == 6) { # Day of week number
1216: # Catch difference straddling Sat/Sun in either direction
1217: $delta += 7 if ($delta < -4);
1218: $delta -= 7 if ($delta > 4);
1219:
1220: $adjust = $delta;
1221: }
1222: return $adjust;
1.1 stredwic 1223: }
1224:
1.46 matthew 1225: sub build_foil_index {
1226: my ($ORdata) = @_;
1.48 matthew 1227: return if (! exists($ORdata->{'_Foils'}));
1228: my %Foildata = %{$ORdata->{'_Foils'}};
1.46 matthew 1229: my @Foils = sort(keys(%Foildata));
1230: my %Concepts;
1231: foreach my $foilid (@Foils) {
1.48 matthew 1232: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1.46 matthew 1233: $foilid);
1234: }
1235: undef(@Foils);
1236: # Having gathered the concept information in a hash, we now translate it
1237: # into an array because we need to be consistent about order.
1238: # Also put the foils in order, too.
1239: my $sortfunction = sub {
1240: my %Numbers = (one => 1,
1241: two => 2,
1242: three => 3,
1243: four => 4,
1244: five => 5,
1245: six => 6,
1246: seven => 7,
1247: eight => 8,
1248: nine => 9,
1249: ten => 10,);
1250: my $a1 = lc($a);
1251: my $b1 = lc($b);
1252: if (exists($Numbers{$a})) {
1253: $a1 = $Numbers{$a};
1254: }
1255: if (exists($Numbers{$b})) {
1256: $b1 = $Numbers{$b};
1257: }
1258: $a1 cmp $b1;
1259: };
1260: my @Concepts;
1261: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1262: push(@Concepts,{ name => $concept,
1263: foils => [@{$Concepts{$concept}}]});
1264: push(@Foils,(@{$Concepts{$concept}}));
1265: }
1266: #
1267: # Build up the table of row labels.
1268: my $table = '<table border="1" >'."\n";
1269: if (@Concepts > 1) {
1270: $table .= '<tr>'.
1271: '<th>'.&mt('Concept Number').'</th>'.
1272: '<th>'.&mt('Concept').'</th>'.
1273: '<th>'.&mt('Foil Number').'</th>'.
1274: '<th>'.&mt('Foil Name').'</th>'.
1275: '<th>'.&mt('Foil Text').'</th>'.
1276: '<th>'.&mt('Correct Value').'</th>'.
1277: "</tr>\n";
1278: } else {
1279: $table .= '<tr>'.
1280: '<th>'.&mt('Foil Number').'</th>'.
1281: '<th>'.&mt('Foil Name').'</th>'.
1282: '<th>'.&mt('Foil Text').'</th>'.
1283: '<th>'.&mt('Correct Value').'</th>'.
1284: "</tr>\n";
1285: }
1286: my $conceptindex = 1;
1287: my $foilindex = 1;
1288: foreach my $concept (@Concepts) {
1289: my @FoilsInConcept = @{$concept->{'foils'}};
1290: my $firstfoil = shift(@FoilsInConcept);
1291: if (@Concepts > 1) {
1292: $table .= '<tr>'.
1293: '<td>'.$conceptindex.'</td>'.
1294: '<td>'.$concept->{'name'}.'</td>'.
1295: '<td>'.$foilindex++.'</td>'.
1296: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1297: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1298: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1299: "</tr>\n";
1300: } else {
1301: $table .= '<tr>'.
1302: '<td>'.$foilindex++.'</td>'.
1303: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1304: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1305: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1306: "</tr>\n";
1307: }
1308: foreach my $foilid (@FoilsInConcept) {
1309: if (@Concepts > 1) {
1310: $table .= '<tr>'.
1311: '<td></td>'.
1312: '<td></td>'.
1313: '<td>'.$foilindex.'</td>'.
1314: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1315: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1316: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1317: "</tr>\n";
1318: } else {
1319: $table .= '<tr>'.
1320: '<td>'.$foilindex.'</td>'.
1321: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1322: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1323: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1324: "</tr>\n";
1325: }
1326: } continue {
1327: $foilindex++;
1328: }
1329: } continue {
1330: $conceptindex++;
1331: }
1332: $table .= "</table>\n";
1333: #
1334: # Build option index with color stuff
1335: return ($table,\@Foils,\@Concepts);
1336: }
1337:
1338: sub build_option_index {
1339: my ($ORdata)= @_;
1340: my $table = "<table>\n";
1341: my $optionindex = 0;
1342: my @Rows;
1.48 matthew 1343: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1.46 matthew 1344: push (@Rows,
1345: '<tr>'.
1346: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1347: (' 'x4).'</td>'.
1348: '<td>'.$option.'</td>'.
1349: "</tr>\n");
1350: }
1351: shift(@Rows); # Throw away 'correct option chosen' color
1352: $table .= join('',reverse(@Rows));
1353: $table .= "</table>\n";
1354: }
1355:
1.33 matthew 1356: #########################################################
1357: #########################################################
1358: ##
1.46 matthew 1359: ## Generic Interface Routines
1.33 matthew 1360: ##
1361: #########################################################
1362: #########################################################
1.23 matthew 1363: sub CreateInterface {
1.28 matthew 1364: ##
1365: ## Environment variable initialization
1.36 matthew 1366: if (! exists$ENV{'form.AnalyzeOver'}) {
1367: $ENV{'form.AnalyzeOver'} = 'Tries';
1.28 matthew 1368: }
1369: ##
1370: ## Build the menu
1.7 stredwic 1371: my $Str = '';
1.23 matthew 1372: $Str .= '<table cellspacing="5">'."\n";
1373: $Str .= '<tr>';
1374: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1375: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 1376: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1377: $Str .= '<td align="center"> </td>';
1.23 matthew 1378: $Str .= '</tr>'."\n";
1.31 matthew 1379: ##
1380: ##
1.23 matthew 1381: $Str .= '<tr><td align="center">'."\n";
1382: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 1383: $Str .= '</td>';
1384: #
1385: $Str .= '<td align="center">';
1.23 matthew 1386: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 1387: $Str .= '</td>';
1388: #
1.31 matthew 1389: # $Str .= '<td align="center">';
1.23 matthew 1390: my $only_seq_with_assessments = sub {
1391: my $s=shift;
1392: if ($s->{'num_assess'} < 1) {
1393: return 0;
1394: } else {
1395: return 1;
1396: }
1397: };
1.31 matthew 1398: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 1399: $only_seq_with_assessments);
1.36 matthew 1400: ##
1401: ##
1.28 matthew 1402: $Str .= '<td>';
1.36 matthew 1403: { # These braces are here to organize the code, not scope it.
1404: {
1405: $Str .= '<nobr>'.&mt('Analyze Over ');
1.51 matthew 1406: $Str .= &Apache::loncommon::help_open_topic
1407: ('Analysis_Analyze_Over');
1.36 matthew 1408: $Str .='<select name="AnalyzeOver" >';
1409: $Str .= '<option value="Tries" ';
1410: if (! exists($ENV{'form.AnalyzeOver'}) ||
1411: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1412: # Default to Tries
1413: $Str .= ' selected ';
1414: }
1415: $Str .= '>'.&mt('Tries').'</option>';
1416: $Str .= '<option value="Time" ';
1417: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1418: $Str .= '>'.&mt('Time').'</option>';
1.51 matthew 1419: $Str .= '</select>';
1420: $Str .= '</nobr><br />';
1.36 matthew 1421: }
1422: {
1423: $Str .= '<nobr>'.&mt('Analyze as ');
1.51 matthew 1424: $Str .= &Apache::loncommon::help_open_topic
1425: ('Analysis_Analyze_as');
1.36 matthew 1426: $Str .='<select name="AnalyzeAs" >';
1427: $Str .= '<option value="Concepts" ';
1428: if (! exists($ENV{'form.AnalyzeAs'}) ||
1429: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1430: # Default to Concepts
1431: $Str .= ' selected ';
1432: }
1433: $Str .= '>'.&mt('Concepts').'</option>';
1434: $Str .= '<option value="Foils" ';
1435: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1436: $Str .= '>'.&mt('Foils').'</option>';
1437: $Str .= '</select></nobr><br />';
1438: }
1439: {
1440: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1.52 matthew 1441: $Str .= &Apache::loncommon::help_open_topic
1442: ('Analysis_num_plots');
1.36 matthew 1443: $Str .= '<select name="NumPlots">';
1444: if (! exists($ENV{'form.NumPlots'})
1445: || $ENV{'form.NumPlots'} < 1
1446: || $ENV{'form.NumPlots'} > 20) {
1447: $ENV{'form.NumPlots'} = 5;
1448: }
1449: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1450: $Str .= '<option value="'.$i.'" ';
1451: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1452: $Str .= '>'.$i.'</option>';
1453: }
1454: $Str .= '</select></nobr>';
1455: }
1.28 matthew 1456: }
1457: $Str .= '</td>';
1.36 matthew 1458: ##
1459: ##
1.28 matthew 1460: $Str .= '</tr>'."\n";
1.23 matthew 1461: $Str .= '</table>'."\n";
1.42 matthew 1462: return $Str;
1.23 matthew 1463: }
1464:
1.46 matthew 1465: sub ProblemSelector {
1.23 matthew 1466: my $Str;
1467: $Str = "\n<table>\n";
1468: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1469: next if ($seq->{'num_assess'}<1);
1470: my $seq_str = '';
1471: foreach my $res (@{$seq->{'contents'}}) {
1.26 matthew 1472: next if ($res->{'type'} ne 'assessment');
1.23 matthew 1473: foreach my $part (@{$res->{'parts'}}) {
1474: my $partdata = $res->{'partdata'}->{$part};
1.47 matthew 1475: # &Apache::lonnet::logthis('----------------');
1476: # while (my ($k,$v)=each(%$partdata)) {
1477: # if (ref($v) eq 'ARRAY') {
1478: # &Apache::lonnet::logthis($k.' = '.join(',',@$v));
1479: # } else {
1480: # &Apache::lonnet::logthis($k.' = '.$v);
1481: # }
1482: # }
1483: if ((! exists($partdata->{'option'}) ||
1484: $partdata->{'option'} == 0 ) &&
1485: (! exists($partdata->{'radiobutton'}) ||
1486: $partdata->{'radiobutton'} == 0)) {
1.23 matthew 1487: next;
1488: }
1489: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1490: my $respid = $partdata->{'ResponseIds'}->[$i];
1491: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1.48 matthew 1492: if ($resptype eq 'option' ){
1493: # if ($resptype eq 'option' || $resptype eq 'radiobutton') {
1494: my $value =
1495: &Apache::lonnet::escape($res->{'symb'}.':'.$part.
1496: ':'.$respid.':'.$resptype);
1.23 matthew 1497: my $checked = '';
1498: if ($ENV{'form.problemchoice'} eq $value) {
1499: $checked = 'checked ';
1500: }
1.50 matthew 1501: my $title = $res->{'title'};
1502: if (! defined($title) || $title eq '') {
1503: ($title) = ($res->{'src'} =~ m:/([^/]*)$:);
1504: }
1.23 matthew 1505: $seq_str .= '<tr><td>'.
1506: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
1507: '</td><td>'.
1.50 matthew 1508: '<a href="'.$res->{'src'}.'">'.$title.'</a> ';
1.48 matthew 1509: # '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> ';
1.23 matthew 1510: if ($partdata->{'option'} > 1) {
1511: $seq_str .= &mt('response').' '.$respid;
1512: }
1513: $seq_str .= "</td></tr>\n";
1.11 minaeibi 1514: }
1515: }
1516: }
1517: }
1.23 matthew 1518: if ($seq_str ne '') {
1519: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
1520: "</tr>\n".$seq_str;
1521: }
1.11 minaeibi 1522: }
1.23 matthew 1523: $Str .= "</table>\n";
1524: return $Str;
1.33 matthew 1525: }
1526:
1527: #########################################################
1528: #########################################################
1529: ##
1530: ## Misc functions
1531: ##
1532: #########################################################
1533: #########################################################
1534: sub get_problem_symb {
1535: my $problemstring = shift();
1.47 matthew 1536: my ($symb,$partid,$resid,$resptype) =
1537: ($problemstring=~ /^(.*):([^:]*):([^:]*):([^:]*)$/);
1538: return ($symb,$partid,$resid,$resptype);
1.11 minaeibi 1539: }
1540:
1.23 matthew 1541: sub get_resource_from_symb {
1542: my ($symb) = @_;
1543: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1544: foreach my $res (@{$seq->{'contents'}}) {
1545: if ($res->{'symb'} eq $symb) {
1546: return $res;
1.2 stredwic 1547: }
1.1 stredwic 1548: }
1549: }
1.23 matthew 1550: return undef;
1.42 matthew 1551: }
1552:
1.47 matthew 1553:
1554: #########################################################
1555: #########################################################
1556: ##
1557: ## Misc Option Response functions
1558: ##
1559: #########################################################
1560: #########################################################
1561: sub get_time_from_row {
1.42 matthew 1562: my ($row) = @_;
1563: if (ref($row)) {
1.47 matthew 1564: return $row->[&Apache::loncoursedata::RD_timestamp()];
1.42 matthew 1565: }
1566: return undef;
1567: }
1568:
1.47 matthew 1569: sub get_tries_from_row {
1.42 matthew 1570: my ($row) = @_;
1571: if (ref($row)) {
1.47 matthew 1572: return $row->[&Apache::loncoursedata::RD_tries()];
1.42 matthew 1573: }
1574: return undef;
1575: }
1576:
1.48 matthew 1577: sub hashify_attempt {
1578: my ($row) = @_;
1579: my %attempt;
1580: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1581: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1582: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1583: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1584: return %attempt;
1585: }
1586:
1.46 matthew 1587: sub Process_OR_Row {
1.42 matthew 1588: my ($row) = @_;
1589: my %RowData;
1.47 matthew 1590: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1591: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1592: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1593: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1594: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1595: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1.43 matthew 1596: return undef if ($award eq 'MISSING_ANSWER');
1.42 matthew 1597: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1598: $RowData{'_correct'} = 1;
1599: }
1600: $RowData{'_total'} = 1;
1601: my @Foilgrades = split('&',$grading);
1602: my @Foilsubs = split('&',$submission);
1603: for (my $j=0;$j<=$#Foilgrades;$j++) {
1604: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1605: my (undef,$submission) = split('=',$Foilsubs[$j]);
1606: if ($correct) {
1607: $RowData{$foilid}->{'_correct'}++;
1608: } else {
1609: $submission = &Apache::lonnet::unescape($submission);
1610: $RowData{$foilid}->{$submission}++;
1611: }
1612: $RowData{$foilid}->{'_total'}++;
1613: }
1614: return %RowData;
1.1 stredwic 1615: }
1616:
1.39 matthew 1617: ##
1618: ## get problem data and put it into a useful data structure.
1619: ## note: we must force each foil and option to not begin or end with
1620: ## spaces as they are stored without such data.
1621: ##
1.48 matthew 1622: sub get_problem_data {
1.25 matthew 1623: my ($url) = @_;
1624: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 1625: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 1626: my %Answer;
1.23 matthew 1627: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 1628: my %Partdata;
1629: foreach my $part (@{$Answer{'parts'}}) {
1630: while (my($key,$value) = each(%Answer)) {
1631: next if ($key !~ /^$part/);
1632: $key =~ s/^$part\.//;
1633: if (ref($value) eq 'ARRAY') {
1634: if ($key eq 'options') {
1.48 matthew 1635: $Partdata{$part}->{'_Options'}=$value;
1.25 matthew 1636: } elsif ($key eq 'concepts') {
1.48 matthew 1637: $Partdata{$part}->{'_Concepts'}=$value;
1.25 matthew 1638: } elsif ($key =~ /^concept\.(.*)$/) {
1639: my $concept = $1;
1640: foreach my $foil (@$value) {
1.48 matthew 1641: $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
1.36 matthew 1642: $concept;
1.25 matthew 1643: }
1644: }
1645: } else {
1646: if ($key=~ /^foil\.text\.(.*)$/) {
1647: my $foil = $1;
1.48 matthew 1648: $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;
1.43 matthew 1649: $value =~ s/(\s*$|^\s*)//g;
1.48 matthew 1650: $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;
1.25 matthew 1651: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1652: my $foil = $1;
1.48 matthew 1653: $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;
1.25 matthew 1654: }
1.47 matthew 1655: }
1656: }
1657: }
1658: return %Partdata;
1659: }
1660:
1.23 matthew 1661: 1;
1.1 stredwic 1662:
1663: __END__
1.48 matthew 1664:
1665: #####
1666: # partdata{part}->{_Foils}->{foilid}->{'name'} = $
1667: # ->{'text'} = $
1668: # ->{'value'} = $
1669: # ->{'_Concept'} = $
1670: # partdata{part}->{_Options} = @
1671: # partdata{part}->{_Concepts} = @
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