Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.62
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.62 ! matthew 3: # $Id: lonproblemanalysis.pm,v 1.61 2004/01/20 15:51:06 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;
1.60 matthew 36: use Apache::lonstathelpers;
1.37 matthew 37: use HTML::Entities();
1.42 matthew 38: use Time::Local();
1.43 matthew 39: use Spreadsheet::WriteExcel();
1.2 stredwic 40:
1.40 matthew 41: my $plotcolors = ['#33ff00',
42: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
43: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
44: ];
1.39 matthew 45:
1.54 matthew 46: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
47: text => 'Previous Problem' },
48: { name => 'ProblemAnalysis',
1.46 matthew 49: text => 'Analyze Problem Again' },
1.54 matthew 50: { name => 'NextProblemAnalysis',
51: text => 'Next Problem' },
52: { name => 'break'},
1.46 matthew 53: { name => 'ClearCache',
54: text => 'Clear Caches' },
55: { name => 'updatecaches',
56: text => 'Update Student Data' },
57: { name => 'SelectAnother',
1.53 matthew 58: text => 'Choose a different Problem' },
1.46 matthew 59: { name => 'ExcelOutput',
60: text => 'Produce Excel Output' });
61:
62:
1.1 stredwic 63: sub BuildProblemAnalysisPage {
1.23 matthew 64: my ($r,$c)=@_;
1.49 matthew 65: #
66: my %Saveable_Parameters = ('Status' => 'scalar',
67: 'Section' => 'array',
68: 'NumPlots' => 'scalar',
69: 'AnalyzeAs' => 'scalar',
70: 'AnalyzeOver' => 'scalar',
71: );
72: &Apache::loncommon::store_course_settings('problem_analysis',
73: \%Saveable_Parameters);
74: &Apache::loncommon::restore_course_settings('problem_analysis',
75: \%Saveable_Parameters);
76: #
77: &Apache::lonstatistics::PrepareClasslist();
1.48 matthew 78: #
1.62 ! matthew 79: $r->print('<h2>'.&mt('Detailed Problem Analysis').'</h2>');
1.25 matthew 80: $r->print(&CreateInterface());
1.28 matthew 81: #
82: my @Students = @Apache::lonstatistics::Students;
83: #
1.46 matthew 84: if (@Students < 1) {
85: $r->print('<h2>There are no students in the sections selected</h2>');
86: }
87: #
88: &Apache::loncoursedata::clear_internal_caches();
1.41 matthew 89: if (exists($ENV{'form.ClearCache'}) ||
90: exists($ENV{'form.updatecaches'}) ||
1.33 matthew 91: (exists($ENV{'form.firstanalysis'}) &&
92: $ENV{'form.firstanalysis'} ne 'no')) {
93: &Apache::lonstatistics::Gather_Full_Student_Data($r);
94: }
95: if (! exists($ENV{'form.firstanalysis'})) {
96: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
97: } else {
98: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
99: }
1.39 matthew 100: $r->rflush();
1.46 matthew 101: #
1.33 matthew 102: if (exists($ENV{'form.problemchoice'}) &&
103: ! exists($ENV{'form.SelectAnother'})) {
1.46 matthew 104: foreach my $button (@SubmitButtons) {
1.54 matthew 105: if ($button->{'name'} eq 'break') {
106: $r->print("<br />\n");
107: } else {
108: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
109: 'value="'.&mt($button->{'text'}).'" />');
110: $r->print(' 'x5);
111: }
1.46 matthew 112: }
1.31 matthew 113: #
1.25 matthew 114: $r->print('<hr />');
1.54 matthew 115: $r->rflush();
116: #
117: # Determine which problem we are to analyze
1.61 matthew 118: my $current_problem = &Apache::lonstathelpers::get_target_from_id
119: ($ENV{'form.problemchoice'});
1.54 matthew 120: #
1.61 matthew 121: my ($prev,$curr,$next) =
122: &Apache::lonstathelpers::get_prev_curr_next($current_problem,
123: '(option|radiobutton)',
124: 'response',
125: );
1.54 matthew 126: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
127: $current_problem = $prev;
128: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
129: $current_problem = $next;
130: } else {
131: $current_problem = $curr;
132: }
1.23 matthew 133: #
1.54 matthew 134: # Store the current problem choice and send it out in the form
1.61 matthew 135: $ENV{'form.problemchoice'} =
136: &Apache::lonstathelpers::make_target_id($current_problem);
1.54 matthew 137: $r->print('<input type="hidden" name="problemchoice" value="'.
138: $ENV{'form.problemchoice'}.'" />');
1.28 matthew 139: #
1.54 matthew 140: if (! defined($current_problem->{'resource'})) {
1.46 matthew 141: $r->print('resource is undefined');
142: } else {
1.54 matthew 143: my $resource = $current_problem->{'resource'};
1.44 matthew 144: $r->print('<h1>'.$resource->{'title'}.'</h1>');
1.41 matthew 145: $r->print('<h3>'.$resource->{'src'}.'</h3>');
1.60 matthew 146: $r->print(&Apache::lonstathelpers::render_resource($resource));
1.44 matthew 147: $r->rflush();
1.48 matthew 148: my %Data = &get_problem_data($resource->{'src'});
1.54 matthew 149: my $ProblemData = $Data{$current_problem->{'part'}.
150: '.'.
151: $current_problem->{'respid'}};
152: if ($current_problem->{'resptype'} eq 'option') {
1.56 matthew 153: &OptionResponseAnalysis($r,$current_problem,
1.54 matthew 154: $ProblemData,
1.47 matthew 155: \@Students);
1.54 matthew 156: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
1.56 matthew 157: &RadioResponseAnalysis($r,$current_problem,
1.54 matthew 158: $ProblemData,
1.47 matthew 159: \@Students);
160: } else {
161: $r->print('<h2>This analysis is not supported</h2>');
162: }
1.7 stredwic 163: }
1.23 matthew 164: $r->print('<hr />');
1.25 matthew 165: } else {
1.31 matthew 166: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
167: &mt('Analyze Problem').'" />');
168: $r->print(' 'x5);
1.27 matthew 169: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.61 matthew 170: $r->print(&Apache::lonstathelpers::ProblemSelector
171: ('(option|radiobutton)'));
1.1 stredwic 172: }
173: }
174:
1.47 matthew 175:
176: #########################################################
177: #########################################################
178: ##
179: ## Radio Response Routines
180: ##
181: #########################################################
182: #########################################################
183: sub RadioResponseAnalysis {
1.56 matthew 184: my ($r,$problem,$ProblemData,$Students) = @_;
185: my ($resource,$respid) = ($problem->{'resource'},
186: $problem->{'respid'});
1.48 matthew 187: my $analysis_html;
1.47 matthew 188: my $PerformanceData =
189: &Apache::loncoursedata::get_response_data
1.48 matthew 190: ($Students,$resource->{'symb'},$respid);
191: if (! defined($PerformanceData) ||
192: ref($PerformanceData) ne 'ARRAY' ) {
193: $analysis_html = '<h2>'.
194: &mt('There is no submission data for this resource').
195: '</h2>';
196: $r->print($analysis_html);
1.47 matthew 197: return;
198: }
1.48 matthew 199: if (exists($ENV{'form.ExcelOutput'})) {
1.56 matthew 200: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
201: $PerformanceData,$ProblemData);
1.48 matthew 202: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.56 matthew 203: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
204: $PerformanceData,$ProblemData);
1.48 matthew 205: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.56 matthew 206: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
207: $PerformanceData,$ProblemData);
1.48 matthew 208: } else {
209: $analysis_html .= '<h2>'.
210: &mt('The analysis you have selected is not supported at this time').
211: '</h2>';
212: }
213: $r->print($analysis_html);
214: }
215:
216: sub RR_Excel_output {
217: my ($r,$PerformanceData,$ProblemData) = @_;
218: return '<h1>No!</h1>';
219: }
220:
221: sub RR_Tries_Analysis {
222: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
223: my $analysis_html;
224: my $mintries = 1;
225: my $maxtries = $ENV{'form.NumPlots'};
226: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
1.57 matthew 227: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
228: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
1.48 matthew 229: $table = '<h3>'.
230: &mt('Not enough data for concept analysis. '.
231: 'Performing Foil Analysis').
232: '</h3>'.$table;
233: $ENV{'form.AnalyzeAs'} = 'Foils';
234: }
235: $analysis_html .= $table;
236: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
1.56 matthew 237: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
238: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
1.48 matthew 239: \@TryData,$ProblemData);
1.56 matthew 240: # } else {
241: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
242: # $Concepts,
243: # \@TryData,
244: # $ProblemData);
245: # }
1.48 matthew 246: return $analysis_html;
247: }
248:
249: sub RR_tries_data_analysis {
250: my ($r,$Attempt_data) = @_;
251: my @TryData;
252: foreach my $attempt (@$Attempt_data) {
253: my %Attempt = &hashify_attempt($attempt);
254: my ($answer,undef) = split('=',$Attempt{'submission'});
255: $TryData[$Attempt{'tries'}]->{$answer}++;
256: }
257: return @TryData;
258: }
259:
260: sub RR_Time_Analysis {
261: my ($r,$PerformanceData,$ProblemData) = @_;
262: my $html;
263: return $html;
264: }
265:
266: sub RR_Tries_Foil_Analysis {
267: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
268: my $html;
269: #
270: # Compute the data neccessary to make the plots
271: for (my $try=$min;$try<=$max;$try++) {
272: my @PlotData_Correct;
273: my @PlotData_Incorrect;
274: next if ($try > scalar(@{$TryData}));
1.56 matthew 275: next if (! defined($TryData->[$try]));
276: my %DataSet = %{$TryData->[$try]};
1.48 matthew 277: my $total = 0;
278: foreach my $foilid (@$Foils) {
279: $total += $DataSet{$foilid};
280: }
281: foreach my $foilid (@$Foils) {
282: if ($total == 0) {
283: push (@PlotData_Correct,0);
284: push (@PlotData_Incorrect,0);
285: } else {
286: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
287: push (@PlotData_Correct,
288: int(100*$DataSet{$foilid}/$total));
289: push (@PlotData_Incorrect,0);
290: } else {
291: push (@PlotData_Correct,0);
292: push (@PlotData_Incorrect,
293: int(100*$DataSet{$foilid}/$total));
294: }
295: }
296: }
297: my $title='Attempt '.$try;
298: my $xlabel = $total.' Submissions';
299: $html.= &Apache::loncommon::DrawBarGraph($title,
300: $xlabel,
301: 'Percent Choosing',
302: 100,
303: ['#33ff00','#ff3300'],
304: \@PlotData_Correct,
305: \@PlotData_Incorrect);
306: }
307: return $html;
308: }
309:
310: sub RR_Tries_Concept_Analysis {
311: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
312: my $html;
313: return $html;
314: }
315:
316: sub RR_Time_Foil_Analysis {
317: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
318: my $html;
319: return $html;
320: }
321:
322: sub RR_Time_Concept_Analysis {
323: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
324: my $html;
325: return $html;
326: }
327:
328:
329: sub get_Radio_problem_data {
330: my ($url) = @_;
331: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
332: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
333: my %Answer = &Apache::lonnet::str2hash($Answ);
334: my %Partdata;
335: foreach my $part (@{$Answer{'parts'}}) {
336: while (my($key,$value) = each(%Answer)) {
337: # if (ref($value) eq 'ARRAY') {
338: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
339: # } else {
340: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
341: # }
342: next if ($key !~ /^$part/);
343: $key =~ s/^$part\.//;
344: if ($key eq 'foils') {
345: $Partdata{$part}->{'_Foils'}=$value;
346: } elsif ($key eq 'options') {
347: $Partdata{$part}->{'_Options'}=$value;
348: } elsif ($key eq 'shown') {
349: $Partdata{$part}->{'_Shown'}=$value;
350: } elsif ($key =~ /^foil.value.(.*)$/) {
351: $Partdata{$part}->{$1}->{'value'}=$value;
352: } elsif ($key =~ /^foil.text.(.*)$/) {
353: $Partdata{$part}->{$1}->{'text'}=$value;
354: }
355: }
356: }
357: return %Partdata;
1.47 matthew 358: }
1.48 matthew 359:
1.33 matthew 360: #########################################################
361: #########################################################
362: ##
1.46 matthew 363: ## Option Response Routines
1.33 matthew 364: ##
365: #########################################################
366: #########################################################
1.46 matthew 367: sub OptionResponseAnalysis {
1.56 matthew 368: my ($r,$problem,$ProblemData,$Students) = @_;
369: my ($resource,$respid) = ($problem->{'resource'},
370: $problem->{'respid'});
371: # Note: part data is not needed.
1.46 matthew 372: my $PerformanceData =
1.47 matthew 373: &Apache::loncoursedata::get_response_data
1.54 matthew 374: ($Students,$resource->{'symb'},$respid);
1.46 matthew 375: if (! defined($PerformanceData) ||
376: ref($PerformanceData) ne 'ARRAY' ) {
377: $r->print('<h2>'.
378: &mt('There is no student data for this problem.').
379: '</h2>');
380: } else {
381: $r->rflush();
382: if (exists($ENV{'form.ExcelOutput'})) {
1.57 matthew 383: my $result = &OR_excel_sheet($r,$resource,
384: $PerformanceData,
385: $ProblemData);
1.46 matthew 386: $r->print($result);
387: $r->rflush();
1.39 matthew 388: } else {
1.46 matthew 389: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.57 matthew 390: my $analysis_html = &OR_tries_analysis($r,
1.46 matthew 391: $PerformanceData,
392: $ProblemData);
393: $r->print($analysis_html);
394: $r->rflush();
395: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.57 matthew 396: my $analysis_html = &OR_time_analysis($PerformanceData,
1.46 matthew 397: $ProblemData);
398: $r->print($analysis_html);
399: $r->rflush();
1.39 matthew 400: } else {
1.46 matthew 401: $r->print('<h2>'.
402: &mt('The analysis you have selected is '.
403: 'not supported at this time').
404: '</h2>');
405: }
1.36 matthew 406: }
1.39 matthew 407: }
408: }
409:
1.33 matthew 410: #########################################################
1.46 matthew 411: #
412: # Option Response: Tries Analysis
413: #
1.33 matthew 414: #########################################################
1.57 matthew 415: sub OR_tries_analysis {
1.43 matthew 416: my ($r,$PerformanceData,$ORdata) = @_;
1.33 matthew 417: my $mintries = 1;
418: my $maxtries = $ENV{'form.NumPlots'};
1.39 matthew 419: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
420: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
421: $table = '<h3>'.
422: &mt('Not enough data for concept analysis. '.
423: 'Performing Foil Analysis').
424: '</h3>'.$table;
425: $ENV{'form.AnalyzeAs'} = 'Foils';
426: }
1.57 matthew 427: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
1.36 matthew 428: $mintries,$maxtries);
1.42 matthew 429: my $analysis = '';
430: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
1.57 matthew 431: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
1.42 matthew 432: \%ResponseData,$ORdata);
433: } else {
1.57 matthew 434: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
1.42 matthew 435: $Concepts,\%ResponseData,$ORdata);
436: }
437: $table .= $analysis;
438: return $table;
439: }
440:
1.57 matthew 441: sub OR_Tries_Foil_Analysis {
1.42 matthew 442: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
443: my %ResponseData = %$respdat;
1.31 matthew 444: #
445: # Compute the data neccessary to make the plots
1.42 matthew 446: my @PlotData;
447: foreach my $foilid (@$Foils) {
448: for (my $i=$mintries;$i<=$maxtries;$i++) {
449: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
450: push(@{$PlotData[$i]->{'_correct'}},0);
451: } else {
452: push(@{$PlotData[$i]->{'_correct'}},
453: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
454: $ResponseData{$foilid}->[$i]->{'_total'});
455: }
1.48 matthew 456: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 457: push(@{$PlotData[$i]->{'_total'}},
458: $ResponseData{$foilid}->[$i]->{'_total'});
459: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
460: push (@{$PlotData[$i]->{$option}},0);
461: } else {
462: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
463: $ResponseData{$foilid}->[$i]->{'_correct'}) {
464: push(@{$PlotData[$i]->{$option}},0);
1.39 matthew 465: } else {
466: push (@{$PlotData[$i]->{$option}},
467: 100 * $ResponseData{$foilid}->[$i]->{$option} /
1.42 matthew 468: ($ResponseData{$foilid}->[$i]->{'_total'} -
469: $ResponseData{$foilid}->[$i]->{'_correct'}));
1.39 matthew 470: }
1.36 matthew 471: }
472: }
473: }
1.42 matthew 474: }
475: #
476: # Build a table for the plots
477: my $analysis_html = "<table>\n";
478: my $foilkey = &build_option_index($ORdata);
479: for (my $i=$mintries;$i<=$maxtries;$i++) {
480: my $count = $ResponseData{'_total'}->[$i];
481: if ($count == 0) {
482: $count = 'no submissions';
483: } elsif ($count == 1) {
484: $count = '1 submission';
485: } else {
486: $count = $count.' submissions';
487: }
488: my $title = 'Attempt '.$i.', '.$count;
489: my @Datasets;
1.48 matthew 490: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
1.42 matthew 491: next if (! exists($PlotData[$i]->{$option}));
492: push(@Datasets,$PlotData[$i]->{$option});
493: }
1.46 matthew 494: my $correctgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 495: ($title,'Foil Number','Percent Correct',
496: 100,$plotcolors,$Datasets[0]);
497: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
498: ##
499: ##
1.57 matthew 500: next if (! defined($Datasets[0]));
1.42 matthew 501: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
502: $Datasets[0]->[$i]=0;
503: }
504: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
505: if ($count == 0) {
506: $count = 'no submissions';
507: } elsif ($count == 1) {
508: $count = '1 submission';
509: } else {
510: $count = $count.' submissions';
511: }
512: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 513: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 514: ($title,'Foil Number','% Option Chosen Incorrectly',
515: 100,$plotcolors,@Datasets);
516: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
517: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
518: }
519: $analysis_html .= "</table>\n";
520: return $analysis_html;
521: }
522:
1.57 matthew 523: sub OR_Tries_Concept_Analysis {
1.42 matthew 524: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
525: my %ResponseData = %$respdat;
526: my $analysis_html = "<table>\n";
527: #
528: # Compute the data neccessary to make the plots
529: my @PlotData;
530: # Concept analysis
531: #
532: # Note: we do not bother with characterizing the students incorrect
533: # answers at the concept level because an incorrect answer for one foil
534: # may be a correct answer for another foil.
535: my %ConceptData;
536: foreach my $concept (@{$Concepts}) {
537: for (my $i=$mintries;$i<=$maxtries;$i++) {
538: #
539: # Gather the per-attempt data
540: my $cdata = $ConceptData{$concept}->[$i];
541: foreach my $foilid (@{$concept->{'foils'}}) {
542: $cdata->{'_correct'} +=
543: $ResponseData{$foilid}->[$i]->{'_correct'};
544: $cdata->{'_total'} +=
545: $ResponseData{$foilid}->[$i]->{'_total'};
546: }
547: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
548: if ($cdata->{'_total'} == 0) {
549: push (@{$PlotData[$i]->{'_correct'}},0);
550: } else {
551: push (@{$PlotData[$i]->{'_correct'}},
552: 100*$cdata->{'_correct'}/$cdata->{'_total'});
1.36 matthew 553: }
1.25 matthew 554: }
1.42 matthew 555: }
1.31 matthew 556: # Build a table for the plots
1.25 matthew 557: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.39 matthew 558: my $minstu = $PlotData[$i]->{'_total'}->[0];
559: my $maxstu = $PlotData[$i]->{'_total'}->[0];
560: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
1.36 matthew 561: if ($minstu > $count) {
562: $minstu = $count;
1.27 matthew 563: }
1.36 matthew 564: if ($maxstu < $count) {
565: $maxstu = $count;
1.27 matthew 566: }
567: }
1.39 matthew 568: $maxstu = 0 if (! defined($maxstu));
569: $minstu = 0 if (! defined($minstu));
1.35 matthew 570: my $title;
1.42 matthew 571: my $count = $ResponseData{'_total'}->[$i];
572: if ($count == 0) {
573: $count = 'no submissions';
574: } elsif ($count == 1) {
575: $count = '1 submission';
1.27 matthew 576: } else {
1.42 matthew 577: $count = $count.' submissions';
1.39 matthew 578: }
1.42 matthew 579: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 580: my $graphlink = &Apache::loncommon::DrawBarGraph
1.42 matthew 581: ($title,'Concept Number','Percent Correct',
582: 100,$plotcolors,$PlotData[$i]->{'_correct'});
583: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
1.25 matthew 584: }
1.42 matthew 585: $analysis_html .= "</table>\n";
586: return $analysis_html;
1.25 matthew 587: }
588:
1.57 matthew 589: sub OR_analyze_by_tries {
1.43 matthew 590: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 591: my %Trydata;
592: $mintries = 1 if (! defined($mintries) || $mintries < 1);
593: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 594: foreach my $row (@$PerformanceData) {
595: next if (! defined($row));
1.47 matthew 596: my $tries = &get_tries_from_row($row);
1.46 matthew 597: my %Row = &Process_OR_Row($row);
1.43 matthew 598: next if (! %Row);
1.42 matthew 599: while (my ($foilid,$href) = each(%Row)) {
600: if (! ref($href)) {
601: $Trydata{$foilid}->[$tries] += $href;
602: next;
603: }
604: while (my ($option,$value) = each(%$href)) {
605: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1.25 matthew 606: }
607: }
608: }
609: return %Trydata;
610: }
611:
1.33 matthew 612: #########################################################
1.46 matthew 613: #
614: # Option Response: Time Analysis
615: #
1.33 matthew 616: #########################################################
1.57 matthew 617: sub OR_time_analysis {
1.33 matthew 618: my ($PerformanceData,$ORdata) = @_;
1.42 matthew 619: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
620: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
621: $table = '<h3>'.
622: &mt('Not enough data for concept analysis. '.
623: 'Performing Foil Analysis').
624: '</h3>'.$table;
625: $ENV{'form.AnalyzeAs'} = 'Foils';
626: }
1.33 matthew 627: my $num_plots = $ENV{'form.NumPlots'};
628: my $num_data = scalar(@$PerformanceData)-1;
629: my $percent = sprintf('%2f',100/$num_plots);
1.42 matthew 630: #
1.37 matthew 631: $table .= "<table>\n";
1.33 matthew 632: for (my $i=0;$i<$num_plots;$i++) {
1.42 matthew 633: ##
1.34 matthew 634: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
635: ('startdate_'.$i);
636: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
637: ('enddate_'.$i);
638: if (! defined($starttime) || ! defined($endtime)) {
1.42 matthew 639: my $sec_in_day = 86400;
1.47 matthew 640: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
1.42 matthew 641: my ($sday,$smon,$syear);
642: (undef,undef,undef,$sday,$smon,$syear) =
643: localtime($last_sub_time - $sec_in_day*$i);
644: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
645: $endtime = $starttime + $sec_in_day;
646: if ($i == ($num_plots -1 )) {
1.47 matthew 647: $starttime = &get_time_from_row($PerformanceData->[0]);
1.42 matthew 648: }
649: }
1.34 matthew 650: my $startdateform = &Apache::lonhtmlcommon::date_setter
651: ('Statistics','startdate_'.$i,$starttime);
652: my $enddateform = &Apache::lonhtmlcommon::date_setter
653: ('Statistics','enddate_'.$i,$endtime);
1.42 matthew 654: #
655: my $begin_index;
656: my $end_index;
657: my $j;
658: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 659: last if (&get_time_from_row($PerformanceData->[$j])
1.46 matthew 660: > $starttime);
1.42 matthew 661: }
662: $begin_index = $j;
663: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 664: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
1.42 matthew 665: }
666: $end_index = $j;
667: ##
668: my $interval = {
669: begin_index => $begin_index,
670: end_index => $end_index,
671: startdateform => $startdateform,
672: enddateform => $enddateform,
673: };
674: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
1.57 matthew 675: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
1.42 matthew 676: $interval);
677: } else {
1.57 matthew 678: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
1.42 matthew 679: $Concepts,$interval);
680: }
1.33 matthew 681: }
1.42 matthew 682: #
1.33 matthew 683: return $table;
684: }
685:
1.57 matthew 686: sub OR_Foil_Time_Analysis {
1.42 matthew 687: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
688: my $analysis_html;
689: my $foilkey = &build_option_index($ORdata);
690: my ($begin_index,$end_index) = ($interval->{'begin_index'},
691: $interval->{'end_index'});
1.33 matthew 692: my %TimeData;
693: #
694: # Compute the number getting the foils correct or incorrects
1.42 matthew 695: for (my $j=$begin_index;$j<=$end_index;$j++) {
696: my $row = $PerformanceData->[$j];
1.33 matthew 697: next if (! defined($row));
1.46 matthew 698: my %Row = &Process_OR_Row($row);
1.42 matthew 699: while (my ($foilid,$href) = each(%Row)) {
700: if (! ref($href)) {
701: $TimeData{$foilid} += $href;
702: next;
703: }
704: while (my ($option,$value) = each(%$href)) {
705: $TimeData{$foilid}->{$option}+=$value;
1.33 matthew 706: }
707: }
708: }
1.39 matthew 709: my @Plotdata;
1.42 matthew 710: foreach my $foil (@$Foils) {
711: my $total = $TimeData{$foil}->{'_total'};
712: if ($total == 0) {
713: push(@{$Plotdata[0]},0);
714: } else {
715: push(@{$Plotdata[0]},
716: 100 * $TimeData{$foil}->{'_correct'} / $total);
717: }
718: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
719: my $optionidx = 1;
1.48 matthew 720: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 721: if ($total_incorrect == 0) {
722: push(@{$Plotdata[$optionidx]},0);
723: } else {
724: push(@{$Plotdata[$optionidx]},
725: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
1.37 matthew 726: }
1.42 matthew 727: } continue {
728: $optionidx++;
1.39 matthew 729: }
1.42 matthew 730: }
731: #
732: # Create the plot
733: my $count = $end_index-$begin_index;
734: my $title;
735: if ($count == 0) {
736: $title = 'no submissions';
737: } elsif ($count == 1) {
738: $title = 'one submission';
1.39 matthew 739: } else {
1.42 matthew 740: $title = $count.' submissions';
741: }
1.46 matthew 742: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
743: 'Foil Number',
744: 'Percent Correct',
745: 100,
746: $plotcolors,
747: $Plotdata[0]);
1.42 matthew 748: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
749: $Plotdata[0]->[$j]=0;
750: }
751: $count = $end_index-$begin_index-$TimeData{'_correct'};
752: if ($count == 0) {
753: $title = 'no submissions';
754: } elsif ($count == 1) {
755: $title = 'one submission';
756: } else {
757: $title = $count.' submissions';
758: }
1.46 matthew 759: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 760: 'Foil Number',
761: 'Incorrect Option Choice',
762: 100,
763: $plotcolors,
764: @Plotdata);
765: $analysis_html.='<tr>'.
766: '<td>'.$correctplot.'</td>'.
767: '<td>'.$incorrectplot.'</td>'.
768: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
769: $analysis_html.= '<tr>'.'<td colspan="3">'.
770: '<b>Start Time</b>:'.
771: ' '.$interval->{'startdateform'}.'<br />'.
772: '<b>End Time</b> : '.
773: ' '.$interval->{'enddateform'}.'<br />'.
774: # '<b>Plot Title</b> :'.
775: # (" "x3).$interval->{'titleform'}.
776: '</td>'.
777: "</tr>\n";
778: return $analysis_html;
779: }
780:
1.57 matthew 781: sub OR_Concept_Time_Analysis {
1.42 matthew 782: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
783: my $analysis_html;
784: ##
785: ## Determine starttime, endtime, startindex, endindex
786: my ($begin_index,$end_index) = ($interval->{'begin_index'},
787: $interval->{'end_index'});
788: my %TimeData;
789: #
790: # Compute the number getting the foils correct or incorrects
791: for (my $j=$begin_index;$j<=$end_index;$j++) {
792: my $row = $PerformanceData->[$j];
793: next if (! defined($row));
1.46 matthew 794: my %Row = &Process_OR_Row($row);
1.42 matthew 795: while (my ($foilid,$href) = each(%Row)) {
796: if (! ref($href)) {
797: $TimeData{$foilid} += $href;
798: next;
1.37 matthew 799: }
1.42 matthew 800: while (my ($option,$value) = each(%$href)) {
801: $TimeData{$foilid}->{$option}+=$value;
1.37 matthew 802: }
1.33 matthew 803: }
804: }
805: #
1.42 matthew 806: # Put the data in plottable form
807: my @Plotdata;
808: foreach my $concept (@$Concepts) {
809: my ($total,$correct);
810: foreach my $foil (@{$concept->{'foils'}}) {
811: $total += $TimeData{$foil}->{'_total'};
812: $correct += $TimeData{$foil}->{'_correct'};
813: }
814: if ($total == 0) {
815: push(@Plotdata,0);
816: } else {
817: push(@Plotdata,100 * $correct / $total);
818: }
819: }
820: #
1.33 matthew 821: # Create the plot
1.42 matthew 822: my $title = ($end_index - $begin_index).' submissions';
1.46 matthew 823: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 824: 'Concept Number',
825: 'Percent Correct',
826: 100,
827: $plotcolors,
828: \@Plotdata);
829: $analysis_html.='<tr>'.
830: '<td>'.$correctplot.'</td>'.
831: '<td align="left" valign="top">'.
832: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
833: '<b>End Time</b> : '.
834: ' '.$interval->{'enddateform'}.'<br />'.
835: # '<b>Plot Title</b> :'.(" "x3).
836: # $interval->{'titleform'}.
837: '</td>'.
838: "</tr>\n";
839: return $analysis_html;
840: }
841:
842: #########################################################
843: #########################################################
844: ##
845: ## Excel output
846: ##
847: #########################################################
848: #########################################################
1.57 matthew 849: sub OR_excel_sheet {
1.43 matthew 850: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1.44 matthew 851: my $response = '';
1.42 matthew 852: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1.43 matthew 853: #
854: # Create excel worksheet
855: my $filename = '/prtspool/'.
856: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
857: time.'_'.rand(1000000000).'.xls';
858: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
859: if (! defined($workbook)) {
860: $r->log_error("Error creating excel spreadsheet $filename: $!");
861: $r->print('<p>'.&mt("Unable to create new Excel file. ".
862: "This error has been logged. ".
863: "Please alert your LON-CAPA administrator").
864: '</p>');
865: return undef;
866: }
867: #
868: $workbook->set_tempdir('/home/httpd/perl/tmp');
869: #
870: # Define some potentially useful formats
871: my $format;
872: $format->{'header'} = $workbook->add_format(bold => 1,
873: bottom => 1,
874: align => 'center');
875: $format->{'bold'} = $workbook->add_format(bold=>1);
876: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
877: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
878: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
879: $format->{'date'} = $workbook->add_format(num_format=>
880: 'mmm d yyyy hh:mm AM/PM');
881: #
882: # Create and populate main worksheets
883: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
884: my $student_data_sheet = $workbook->addworksheet('Student Data');
885: my $response_data_sheet = $workbook->addworksheet('Response Data');
886: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
887: $response_data_sheet) {
888: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
889: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
890: }
891: #
892: my $result;
1.59 matthew 893: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1.43 matthew 894: $Concepts,$ORdata);
895: if ($result ne 'okay') {
896: # Do something useful
897: }
1.59 matthew 898: $result = &OR_build_student_data_worksheet($student_data_sheet,$format);
1.43 matthew 899: if ($result ne 'okay') {
900: # Do something useful
901: }
1.59 matthew 902: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1.43 matthew 903: $PerformanceData,$Foils,
904: $ORdata);
905: if ($result ne 'okay') {
906: # Do something useful
907: }
1.44 matthew 908: $response_data_sheet->activate();
1.43 matthew 909: #
910: # Close the excel file
911: $workbook->close();
912: #
913: # Write a link to allow them to download it
1.44 matthew 914: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
915: '<p><a href="'.$filename.'">'.
916: &mt('Your Excel spreadsheet.').
917: '</a></p>'."\n";
1.43 matthew 918: return $result;
919: }
920:
1.57 matthew 921: sub OR_build_problem_data_worksheet {
1.43 matthew 922: my ($worksheet,$format,$Concepts,$ORdata) = @_;
923: my $rows_output = 3;
924: my $cols_output = 0;
925: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
926: ##
927: ##
928: my @Headers;
929: if (@$Concepts > 1) {
930: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
931: 'Foil Name','Foil Text','Correct value');
932: } else {
933: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
934: }
935: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1.48 matthew 936: my %Foildata = %{$ORdata->{'_Foils'}};
1.43 matthew 937: my $conceptindex = 1;
938: my $foilindex = 1;
939: foreach my $concept (@$Concepts) {
940: my @FoilsInConcept = @{$concept->{'foils'}};
941: my $firstfoil = shift(@FoilsInConcept);
942: if (@$Concepts > 1) {
943: $worksheet->write_row($rows_output++,0,
944: [$conceptindex,
945: $concept->{'name'},
946: $foilindex++,
947: $Foildata{$firstfoil}->{'name'},
948: $Foildata{$firstfoil}->{'text'},
949: $Foildata{$firstfoil}->{'value'},]);
950: } else {
951: $worksheet->write_row($rows_output++,0,
952: [ $foilindex++,
953: $Foildata{$firstfoil}->{'name'},
954: $Foildata{$firstfoil}->{'text'},
955: $Foildata{$firstfoil}->{'value'},]);
956: }
957: foreach my $foilid (@FoilsInConcept) {
958: if (@$Concepts > 1) {
959: $worksheet->write_row($rows_output++,0,
960: ['',
961: '',
962: $foilindex,
963: $Foildata{$foilid}->{'name'},
964: $Foildata{$foilid}->{'text'},
965: $Foildata{$foilid}->{'value'},]);
966: } else {
967: $worksheet->write_row($rows_output++,0,
968: [$foilindex,
969: $Foildata{$foilid}->{'name'},
970: $Foildata{$foilid}->{'text'},
971: $Foildata{$foilid}->{'value'},]);
972: }
973: } continue {
974: $foilindex++;
975: }
976: } continue {
977: $conceptindex++;
978: }
979: $rows_output++;
980: $rows_output++;
981: ##
982: ## Option data output
983: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1.48 matthew 984: foreach my $string (@{$ORdata->{'_Options'}}) {
1.43 matthew 985: $worksheet->write($rows_output++,0,$string);
986: }
987: return 'okay';
988: }
989:
1.57 matthew 990: sub OR_build_student_data_worksheet {
1.43 matthew 991: my ($worksheet,$format) = @_;
992: my $rows_output = 3;
993: my $cols_output = 0;
994: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
995: my @Headers = ('full name','username','domain','section',
996: "student\nnumber",'identifier');
997: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
998: my @Students = @Apache::lonstatistics::Students;
999: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
1000: my %ids;
1001: foreach my $row (@$studentrows) {
1002: my ($mysqlid,$student) = @$row;
1003: $ids{$student}=$mysqlid;
1004: }
1005: foreach my $student (@Students) {
1006: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
1007: $worksheet->write_row($rows_output++,0,
1008: [$student->{'fullname'},
1009: $student->{'username'},$student->{'domain'},
1010: $student->{'section'},$student->{'id'},
1011: $ids{$name_domain}]);
1012: }
1013: return;
1014: }
1015:
1.57 matthew 1016: sub OR_build_response_data_worksheet {
1.43 matthew 1017: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1018: my $rows_output = 3;
1019: my $cols_output = 0;
1020: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1021: $worksheet->set_column(1,1,20);
1022: $worksheet->set_column(2,2,13);
1023: my @Headers = ('identifier','time','award detail','attempt');
1024: foreach my $foil (@$Foils) {
1025: push (@Headers,$foil.' submission');
1026: push (@Headers,$foil.' grading');
1027: }
1028: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1029: #
1030: foreach my $row (@$PerformanceData) {
1031: next if (! defined($row));
1032: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1033: my @Foilgrades = split('&',$grading);
1034: my @Foilsubs = split('&',$submission);
1035: my %ResponseData;
1036: for (my $j=0;$j<=$#Foilgrades;$j++) {
1037: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1038: my (undef,$submission) = split('=',$Foilsubs[$j]);
1039: $submission = &Apache::lonnet::unescape($submission);
1040: $ResponseData{$foilid.' submission'}=$submission;
1041: $ResponseData{$foilid.' award'}=$correct;
1042: }
1043: $worksheet->write($rows_output,$cols_output++,$student);
1044: $worksheet->write($rows_output,$cols_output++,
1045: &calc_serial($time),$format->{'date'});
1046: $worksheet->write($rows_output,$cols_output++,$award);
1047: $worksheet->write($rows_output,$cols_output++,$tries);
1048: foreach my $foilid (@$Foils) {
1049: $worksheet->write($rows_output,$cols_output++,
1050: $ResponseData{$foilid.' submission'});
1051: $worksheet->write($rows_output,$cols_output++,
1052: $ResponseData{$foilid.' award'});
1053: }
1054: $rows_output++;
1055: $cols_output = 0;
1056: }
1057: return;
1.42 matthew 1058: }
1059:
1.43 matthew 1060:
1061: ##
1062: ## The following is copied from datecalc1.pl, part of the
1063: ## Spreadsheet::WriteExcel CPAN module.
1064: ##
1065: ##
1066: ######################################################################
1067: #
1068: # Demonstration of writing date/time cells to Excel spreadsheets,
1069: # using UNIX/Perl time as source of date/time.
1070: #
1071: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
1072: #
1073: ######################################################################
1074: #
1075: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
1076: # measured in seconds.
1077: #
1078: # An Excel file can use exactly one of two different date/time systems.
1079: # In these systems, a floating point number represents the number of days
1080: # (and fractional parts of the day) since a start point. The floating point
1081: # number is referred to as a 'serial'.
1082: # The two systems ('1900' and '1904') use different starting points:
1083: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
1084: # a leap year - see:
1085: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
1086: # for the excuse^H^H^H^H^H^Hreason.
1087: # '1904'; '1.00' is 2 Jan 1904.
1088: #
1089: # The '1904' system is the default for Apple Macs. Windows versions of
1090: # Excel have the option to use the '1904' system.
1091: #
1092: # Note that Visual Basic's "DateSerial" function does NOT erroneously
1093: # regard 1900 as a leap year, and thus its serials do not agree with
1094: # the 1900 serials of Excel for dates before 1 Mar 1900.
1095: #
1096: # Note that StarOffice (at least at version 5.2) does NOT erroneously
1097: # regard 1900 as a leap year, and thus its serials do not agree with
1098: # the 1900 serials of Excel for dates before 1 Mar 1900.
1099: #
1100: ######################################################################
1101: #
1102: # Calculation description
1103: # =======================
1104: #
1105: # 1900 system
1106: # -----------
1107: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
1108: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1109: # were leap years with an extra day.
1110: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
1111: # 1 Jan 1970.
1112: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
1113: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
1114: #
1115: # 1904 system
1116: # -----------
1117: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
1118: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1119: # were leap years with an extra day.
1120: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
1121: # 1 Jan 1970.
1122: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
1123: #
1124: ######################################################################
1125: #
1126: # Copyright (c) 2000, Andrew Benham.
1127: # This program is free software. It may be used, redistributed and/or
1128: # modified under the same terms as Perl itself.
1129: #
1130: # Andrew Benham, adsb@bigfoot.com
1131: # London, United Kingdom
1132: # 11 Nov 2000
1133: #
1134: ######################################################################
1135:
1136: # Use 1900 date system on all platforms other than Apple Mac (for which
1137: # use 1904 date system).
1138: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
1139:
1140: #-----------------------------------------------------------
1141: # calc_serial()
1142: #
1143: # Called with (up to) 2 parameters.
1144: # 1. Unix timestamp. If omitted, uses current time.
1145: # 2. GMT flag. Set to '1' to return serial in GMT.
1146: # If omitted, returns serial in appropriate timezone.
1147: #
1148: # Returns date/time serial according to $DATE_SYSTEM selected
1149: #-----------------------------------------------------------
1150: sub calc_serial {
1151: my $time = (defined $_[0]) ? $_[0] : time();
1152: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
1153:
1154: # Divide timestamp by number of seconds in a day.
1155: # This gives a date serial with '0' on 1 Jan 1970.
1156: my $serial = $time / 86400;
1157:
1158: # Adjust the date serial by the offset appropriate to the
1159: # currently selected system (1900/1904).
1160: if ($DATE_SYSTEM == 0) { # use 1900 system
1161: $serial += 25569;
1162: } else { # use 1904 system
1163: $serial += 24107;
1164: }
1165:
1166: unless ($gmtflag) {
1167: # Now have a 'raw' serial with the right offset. But this
1168: # gives a serial in GMT, which is false unless the timezone
1169: # is GMT. We need to adjust the serial by the appropriate
1170: # timezone offset.
1171: # Calculate the appropriate timezone offset by seeing what
1172: # the differences between localtime and gmtime for the given
1173: # time are.
1174:
1175: my @gmtime = gmtime($time);
1176: my @ltime = localtime($time);
1177:
1178: # For the first 7 elements of the two arrays, adjust the
1179: # date serial where the elements differ.
1180: for (0 .. 6) {
1181: my $diff = $ltime[$_] - $gmtime[$_];
1182: if ($diff) {
1183: $serial += _adjustment($diff,$_);
1184: }
1185: }
1186: }
1187:
1188: # Perpetuate the error that 1900 was a leap year by decrementing
1189: # the serial if we're using the 1900 system and the date is prior to
1190: # 1 Mar 1900. This has the effect of making serial value '60'
1191: # 29 Feb 1900.
1192:
1193: # This fix only has any effect if UNIX/Perl time on the platform
1194: # can represent 1900. Many can't.
1195:
1196: unless ($DATE_SYSTEM) {
1197: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
1198: }
1199: return $serial;
1200: }
1201:
1202: sub _adjustment {
1203: # Based on the difference in the localtime/gmtime array elements
1204: # number, return the adjustment required to the serial.
1205:
1206: # We only look at some elements of the localtime/gmtime arrays:
1207: # seconds unlikely to be different as all known timezones
1208: # have an offset of integral multiples of 15 minutes,
1209: # but it's easy to do.
1210: # minutes will be different for timezone offsets which are
1211: # not an exact number of hours.
1212: # hours very likely to be different.
1213: # weekday will differ when localtime/gmtime difference
1214: # straddles midnight.
1215: #
1216: # Assume that difference between localtime and gmtime is less than
1217: # 5 days, then don't have to do maths for day of month, month number,
1218: # year number, etc...
1219:
1220: my ($delta,$element) = @_;
1221: my $adjust = 0;
1222:
1223: if ($element == 0) { # Seconds
1224: $adjust = $delta/86400; # 60 * 60 * 24
1225: } elsif ($element == 1) { # Minutes
1226: $adjust = $delta/1440; # 60 * 24
1227: } elsif ($element == 2) { # Hours
1228: $adjust = $delta/24; # 24
1229: } elsif ($element == 6) { # Day of week number
1230: # Catch difference straddling Sat/Sun in either direction
1231: $delta += 7 if ($delta < -4);
1232: $delta -= 7 if ($delta > 4);
1233:
1234: $adjust = $delta;
1235: }
1236: return $adjust;
1.1 stredwic 1237: }
1238:
1.46 matthew 1239: sub build_foil_index {
1240: my ($ORdata) = @_;
1.48 matthew 1241: return if (! exists($ORdata->{'_Foils'}));
1242: my %Foildata = %{$ORdata->{'_Foils'}};
1.46 matthew 1243: my @Foils = sort(keys(%Foildata));
1244: my %Concepts;
1245: foreach my $foilid (@Foils) {
1.48 matthew 1246: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1.46 matthew 1247: $foilid);
1248: }
1249: undef(@Foils);
1250: # Having gathered the concept information in a hash, we now translate it
1251: # into an array because we need to be consistent about order.
1252: # Also put the foils in order, too.
1253: my $sortfunction = sub {
1254: my %Numbers = (one => 1,
1255: two => 2,
1256: three => 3,
1257: four => 4,
1258: five => 5,
1259: six => 6,
1260: seven => 7,
1261: eight => 8,
1262: nine => 9,
1263: ten => 10,);
1264: my $a1 = lc($a);
1265: my $b1 = lc($b);
1.57 matthew 1266: if (exists($Numbers{$a1})) {
1267: $a = $Numbers{$a1};
1268: }
1269: if (exists($Numbers{$b1})) {
1270: $b = $Numbers{$b1};
1.46 matthew 1271: }
1.57 matthew 1272: if (($a =~/^\d+$/) && ($b =~/^\d+$/)) {
1273: return $a <=> $b;
1274: } else {
1275: return $a cmp $b;
1.46 matthew 1276: }
1277: };
1278: my @Concepts;
1279: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1.57 matthew 1280: if (! defined($Concepts{$concept})) {
1281: $Concepts{$concept}=[];
1282: # next;
1283: }
1.46 matthew 1284: push(@Concepts,{ name => $concept,
1285: foils => [@{$Concepts{$concept}}]});
1286: push(@Foils,(@{$Concepts{$concept}}));
1287: }
1288: #
1289: # Build up the table of row labels.
1290: my $table = '<table border="1" >'."\n";
1291: if (@Concepts > 1) {
1292: $table .= '<tr>'.
1293: '<th>'.&mt('Concept Number').'</th>'.
1294: '<th>'.&mt('Concept').'</th>'.
1295: '<th>'.&mt('Foil Number').'</th>'.
1296: '<th>'.&mt('Foil Name').'</th>'.
1297: '<th>'.&mt('Foil Text').'</th>'.
1298: '<th>'.&mt('Correct Value').'</th>'.
1299: "</tr>\n";
1300: } else {
1301: $table .= '<tr>'.
1302: '<th>'.&mt('Foil Number').'</th>'.
1303: '<th>'.&mt('Foil Name').'</th>'.
1304: '<th>'.&mt('Foil Text').'</th>'.
1305: '<th>'.&mt('Correct Value').'</th>'.
1306: "</tr>\n";
1307: }
1308: my $conceptindex = 1;
1309: my $foilindex = 1;
1310: foreach my $concept (@Concepts) {
1311: my @FoilsInConcept = @{$concept->{'foils'}};
1312: my $firstfoil = shift(@FoilsInConcept);
1313: if (@Concepts > 1) {
1314: $table .= '<tr>'.
1315: '<td>'.$conceptindex.'</td>'.
1316: '<td>'.$concept->{'name'}.'</td>'.
1317: '<td>'.$foilindex++.'</td>'.
1318: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1319: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1320: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1321: "</tr>\n";
1322: } else {
1323: $table .= '<tr>'.
1324: '<td>'.$foilindex++.'</td>'.
1325: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1326: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1327: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1328: "</tr>\n";
1329: }
1330: foreach my $foilid (@FoilsInConcept) {
1331: if (@Concepts > 1) {
1332: $table .= '<tr>'.
1333: '<td></td>'.
1334: '<td></td>'.
1335: '<td>'.$foilindex.'</td>'.
1336: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1337: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1338: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1339: "</tr>\n";
1340: } else {
1341: $table .= '<tr>'.
1342: '<td>'.$foilindex.'</td>'.
1343: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1344: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1345: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1346: "</tr>\n";
1347: }
1348: } continue {
1349: $foilindex++;
1350: }
1351: } continue {
1352: $conceptindex++;
1353: }
1354: $table .= "</table>\n";
1355: #
1356: # Build option index with color stuff
1357: return ($table,\@Foils,\@Concepts);
1358: }
1359:
1360: sub build_option_index {
1361: my ($ORdata)= @_;
1362: my $table = "<table>\n";
1363: my $optionindex = 0;
1364: my @Rows;
1.48 matthew 1365: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1.46 matthew 1366: push (@Rows,
1367: '<tr>'.
1368: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1369: (' 'x4).'</td>'.
1370: '<td>'.$option.'</td>'.
1371: "</tr>\n");
1372: }
1373: shift(@Rows); # Throw away 'correct option chosen' color
1374: $table .= join('',reverse(@Rows));
1375: $table .= "</table>\n";
1376: }
1377:
1.33 matthew 1378: #########################################################
1379: #########################################################
1380: ##
1.46 matthew 1381: ## Generic Interface Routines
1.33 matthew 1382: ##
1383: #########################################################
1384: #########################################################
1.23 matthew 1385: sub CreateInterface {
1.28 matthew 1386: ##
1387: ## Environment variable initialization
1.36 matthew 1388: if (! exists$ENV{'form.AnalyzeOver'}) {
1389: $ENV{'form.AnalyzeOver'} = 'Tries';
1.28 matthew 1390: }
1391: ##
1392: ## Build the menu
1.7 stredwic 1393: my $Str = '';
1.23 matthew 1394: $Str .= '<table cellspacing="5">'."\n";
1395: $Str .= '<tr>';
1396: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1397: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 1398: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1399: $Str .= '<td align="center"> </td>';
1.23 matthew 1400: $Str .= '</tr>'."\n";
1.31 matthew 1401: ##
1402: ##
1.23 matthew 1403: $Str .= '<tr><td align="center">'."\n";
1404: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 1405: $Str .= '</td>';
1406: #
1407: $Str .= '<td align="center">';
1.23 matthew 1408: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 1409: $Str .= '</td>';
1410: #
1.31 matthew 1411: # $Str .= '<td align="center">';
1.23 matthew 1412: my $only_seq_with_assessments = sub {
1413: my $s=shift;
1414: if ($s->{'num_assess'} < 1) {
1415: return 0;
1416: } else {
1417: return 1;
1418: }
1419: };
1.31 matthew 1420: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 1421: $only_seq_with_assessments);
1.36 matthew 1422: ##
1423: ##
1.28 matthew 1424: $Str .= '<td>';
1.36 matthew 1425: { # These braces are here to organize the code, not scope it.
1426: {
1427: $Str .= '<nobr>'.&mt('Analyze Over ');
1.51 matthew 1428: $Str .= &Apache::loncommon::help_open_topic
1429: ('Analysis_Analyze_Over');
1.36 matthew 1430: $Str .='<select name="AnalyzeOver" >';
1431: $Str .= '<option value="Tries" ';
1432: if (! exists($ENV{'form.AnalyzeOver'}) ||
1433: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1434: # Default to Tries
1435: $Str .= ' selected ';
1436: }
1437: $Str .= '>'.&mt('Tries').'</option>';
1438: $Str .= '<option value="Time" ';
1439: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1440: $Str .= '>'.&mt('Time').'</option>';
1.51 matthew 1441: $Str .= '</select>';
1442: $Str .= '</nobr><br />';
1.36 matthew 1443: }
1444: {
1445: $Str .= '<nobr>'.&mt('Analyze as ');
1.51 matthew 1446: $Str .= &Apache::loncommon::help_open_topic
1447: ('Analysis_Analyze_as');
1.36 matthew 1448: $Str .='<select name="AnalyzeAs" >';
1449: $Str .= '<option value="Concepts" ';
1450: if (! exists($ENV{'form.AnalyzeAs'}) ||
1451: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1452: # Default to Concepts
1453: $Str .= ' selected ';
1454: }
1455: $Str .= '>'.&mt('Concepts').'</option>';
1456: $Str .= '<option value="Foils" ';
1457: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1458: $Str .= '>'.&mt('Foils').'</option>';
1459: $Str .= '</select></nobr><br />';
1460: }
1461: {
1462: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1.52 matthew 1463: $Str .= &Apache::loncommon::help_open_topic
1464: ('Analysis_num_plots');
1.36 matthew 1465: $Str .= '<select name="NumPlots">';
1466: if (! exists($ENV{'form.NumPlots'})
1467: || $ENV{'form.NumPlots'} < 1
1468: || $ENV{'form.NumPlots'} > 20) {
1469: $ENV{'form.NumPlots'} = 5;
1470: }
1471: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1472: $Str .= '<option value="'.$i.'" ';
1473: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1474: $Str .= '>'.$i.'</option>';
1475: }
1476: $Str .= '</select></nobr>';
1477: }
1.28 matthew 1478: }
1479: $Str .= '</td>';
1.36 matthew 1480: ##
1481: ##
1.28 matthew 1482: $Str .= '</tr>'."\n";
1.23 matthew 1483: $Str .= '</table>'."\n";
1.42 matthew 1484: return $Str;
1.54 matthew 1485: }
1.47 matthew 1486:
1487: #########################################################
1488: #########################################################
1489: ##
1490: ## Misc Option Response functions
1491: ##
1492: #########################################################
1493: #########################################################
1494: sub get_time_from_row {
1.42 matthew 1495: my ($row) = @_;
1496: if (ref($row)) {
1.47 matthew 1497: return $row->[&Apache::loncoursedata::RD_timestamp()];
1.42 matthew 1498: }
1499: return undef;
1500: }
1501:
1.47 matthew 1502: sub get_tries_from_row {
1.42 matthew 1503: my ($row) = @_;
1504: if (ref($row)) {
1.47 matthew 1505: return $row->[&Apache::loncoursedata::RD_tries()];
1.42 matthew 1506: }
1507: return undef;
1508: }
1509:
1.48 matthew 1510: sub hashify_attempt {
1511: my ($row) = @_;
1512: my %attempt;
1513: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1514: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1515: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1516: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1517: return %attempt;
1518: }
1519:
1.46 matthew 1520: sub Process_OR_Row {
1.42 matthew 1521: my ($row) = @_;
1522: my %RowData;
1.47 matthew 1523: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1524: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1525: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1526: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1527: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1528: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1.43 matthew 1529: return undef if ($award eq 'MISSING_ANSWER');
1.42 matthew 1530: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1531: $RowData{'_correct'} = 1;
1532: }
1533: $RowData{'_total'} = 1;
1534: my @Foilgrades = split('&',$grading);
1535: my @Foilsubs = split('&',$submission);
1536: for (my $j=0;$j<=$#Foilgrades;$j++) {
1537: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1.58 matthew 1538: $foilid = &Apache::lonnet::unescape($foilid);
1.42 matthew 1539: my (undef,$submission) = split('=',$Foilsubs[$j]);
1540: if ($correct) {
1541: $RowData{$foilid}->{'_correct'}++;
1542: } else {
1543: $submission = &Apache::lonnet::unescape($submission);
1544: $RowData{$foilid}->{$submission}++;
1545: }
1546: $RowData{$foilid}->{'_total'}++;
1547: }
1548: return %RowData;
1.1 stredwic 1549: }
1550:
1.39 matthew 1551: ##
1552: ## get problem data and put it into a useful data structure.
1553: ## note: we must force each foil and option to not begin or end with
1554: ## spaces as they are stored without such data.
1555: ##
1.48 matthew 1556: sub get_problem_data {
1.25 matthew 1557: my ($url) = @_;
1558: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 1559: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 1560: my %Answer;
1.23 matthew 1561: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 1562: my %Partdata;
1563: foreach my $part (@{$Answer{'parts'}}) {
1564: while (my($key,$value) = each(%Answer)) {
1565: next if ($key !~ /^$part/);
1566: $key =~ s/^$part\.//;
1567: if (ref($value) eq 'ARRAY') {
1568: if ($key eq 'options') {
1.48 matthew 1569: $Partdata{$part}->{'_Options'}=$value;
1.25 matthew 1570: } elsif ($key eq 'concepts') {
1.48 matthew 1571: $Partdata{$part}->{'_Concepts'}=$value;
1.25 matthew 1572: } elsif ($key =~ /^concept\.(.*)$/) {
1573: my $concept = $1;
1574: foreach my $foil (@$value) {
1.48 matthew 1575: $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
1.36 matthew 1576: $concept;
1.25 matthew 1577: }
1578: }
1579: } else {
1580: if ($key=~ /^foil\.text\.(.*)$/) {
1581: my $foil = $1;
1.48 matthew 1582: $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;
1.43 matthew 1583: $value =~ s/(\s*$|^\s*)//g;
1.48 matthew 1584: $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;
1.25 matthew 1585: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1586: my $foil = $1;
1.48 matthew 1587: $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;
1.25 matthew 1588: }
1.47 matthew 1589: }
1590: }
1591: }
1592: return %Partdata;
1593: }
1594:
1.23 matthew 1595: 1;
1.1 stredwic 1596:
1597: __END__
1.48 matthew 1598:
1599: #####
1600: # partdata{part}->{_Foils}->{foilid}->{'name'} = $
1601: # ->{'text'} = $
1602: # ->{'value'} = $
1603: # ->{'_Concept'} = $
1604: # partdata{part}->{_Options} = @
1605: # partdata{part}->{_Concepts} = @
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