Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.60
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.60 ! matthew 3: # $Id: lonproblemanalysis.pm,v 1.59 2004/01/19 20:10:36 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: #
1.24 matthew 79: $r->print('<h2>'.&mt('Option Response 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
118: my $current_problem = &get_target_from_id($ENV{'form.problemchoice'});
119: #
120: my ($prev,$curr,$next) = &get_prev_curr_next($current_problem);
121: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
122: $current_problem = $prev;
123: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
124: $current_problem = $next;
125: } else {
126: $current_problem = $curr;
127: }
1.23 matthew 128: #
1.54 matthew 129: # Store the current problem choice and send it out in the form
130: $ENV{'form.problemchoice'} = &make_target_id($current_problem);
131: $r->print('<input type="hidden" name="problemchoice" value="'.
132: $ENV{'form.problemchoice'}.'" />');
1.28 matthew 133: #
1.54 matthew 134: if (! defined($current_problem->{'resource'})) {
1.46 matthew 135: $r->print('resource is undefined');
136: } else {
1.54 matthew 137: my $resource = $current_problem->{'resource'};
1.44 matthew 138: $r->print('<h1>'.$resource->{'title'}.'</h1>');
1.41 matthew 139: $r->print('<h3>'.$resource->{'src'}.'</h3>');
1.60 ! matthew 140: $r->print(&Apache::lonstathelpers::render_resource($resource));
1.44 matthew 141: $r->rflush();
1.48 matthew 142: my %Data = &get_problem_data($resource->{'src'});
1.54 matthew 143: my $ProblemData = $Data{$current_problem->{'part'}.
144: '.'.
145: $current_problem->{'respid'}};
146: if ($current_problem->{'resptype'} eq 'option') {
1.56 matthew 147: &OptionResponseAnalysis($r,$current_problem,
1.54 matthew 148: $ProblemData,
1.47 matthew 149: \@Students);
1.54 matthew 150: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
1.56 matthew 151: &RadioResponseAnalysis($r,$current_problem,
1.54 matthew 152: $ProblemData,
1.47 matthew 153: \@Students);
154: } else {
155: $r->print('<h2>This analysis is not supported</h2>');
156: }
1.7 stredwic 157: }
1.23 matthew 158: $r->print('<hr />');
1.25 matthew 159: } else {
1.31 matthew 160: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
161: &mt('Analyze Problem').'" />');
162: $r->print(' 'x5);
1.27 matthew 163: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.46 matthew 164: $r->print(&ProblemSelector());
1.1 stredwic 165: }
166: }
167:
1.47 matthew 168:
169: #########################################################
170: #########################################################
171: ##
172: ## Radio Response Routines
173: ##
174: #########################################################
175: #########################################################
176: sub RadioResponseAnalysis {
1.56 matthew 177: my ($r,$problem,$ProblemData,$Students) = @_;
178: my ($resource,$respid) = ($problem->{'resource'},
179: $problem->{'respid'});
1.48 matthew 180: my $analysis_html;
1.47 matthew 181: my $PerformanceData =
182: &Apache::loncoursedata::get_response_data
1.48 matthew 183: ($Students,$resource->{'symb'},$respid);
184: if (! defined($PerformanceData) ||
185: ref($PerformanceData) ne 'ARRAY' ) {
186: $analysis_html = '<h2>'.
187: &mt('There is no submission data for this resource').
188: '</h2>';
189: $r->print($analysis_html);
1.47 matthew 190: return;
191: }
1.48 matthew 192: if (exists($ENV{'form.ExcelOutput'})) {
1.56 matthew 193: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
194: $PerformanceData,$ProblemData);
1.48 matthew 195: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.56 matthew 196: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
197: $PerformanceData,$ProblemData);
1.48 matthew 198: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.56 matthew 199: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
200: $PerformanceData,$ProblemData);
1.48 matthew 201: } else {
202: $analysis_html .= '<h2>'.
203: &mt('The analysis you have selected is not supported at this time').
204: '</h2>';
205: }
206: $r->print($analysis_html);
207: }
208:
209: sub RR_Excel_output {
210: my ($r,$PerformanceData,$ProblemData) = @_;
211: return '<h1>No!</h1>';
212: }
213:
214: sub RR_Tries_Analysis {
215: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
216: my $analysis_html;
217: my $mintries = 1;
218: my $maxtries = $ENV{'form.NumPlots'};
219: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
1.57 matthew 220: if ((! defined($Concepts)) || ((@$Concepts < 2) &&
221: ($ENV{'form.AnalyzeAs'} ne 'Foils'))) {
1.48 matthew 222: $table = '<h3>'.
223: &mt('Not enough data for concept analysis. '.
224: 'Performing Foil Analysis').
225: '</h3>'.$table;
226: $ENV{'form.AnalyzeAs'} = 'Foils';
227: }
228: $analysis_html .= $table;
229: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
1.56 matthew 230: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
231: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
1.48 matthew 232: \@TryData,$ProblemData);
1.56 matthew 233: # } else {
234: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
235: # $Concepts,
236: # \@TryData,
237: # $ProblemData);
238: # }
1.48 matthew 239: return $analysis_html;
240: }
241:
242: sub RR_tries_data_analysis {
243: my ($r,$Attempt_data) = @_;
244: my @TryData;
245: foreach my $attempt (@$Attempt_data) {
246: my %Attempt = &hashify_attempt($attempt);
247: my ($answer,undef) = split('=',$Attempt{'submission'});
248: $TryData[$Attempt{'tries'}]->{$answer}++;
249: }
250: return @TryData;
251: }
252:
253: sub RR_Time_Analysis {
254: my ($r,$PerformanceData,$ProblemData) = @_;
255: my $html;
256: return $html;
257: }
258:
259: sub RR_Tries_Foil_Analysis {
260: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
261: my $html;
262: #
263: # Compute the data neccessary to make the plots
264: for (my $try=$min;$try<=$max;$try++) {
265: my @PlotData_Correct;
266: my @PlotData_Incorrect;
267: next if ($try > scalar(@{$TryData}));
1.56 matthew 268: next if (! defined($TryData->[$try]));
269: my %DataSet = %{$TryData->[$try]};
1.48 matthew 270: my $total = 0;
271: foreach my $foilid (@$Foils) {
272: $total += $DataSet{$foilid};
273: }
274: foreach my $foilid (@$Foils) {
275: if ($total == 0) {
276: push (@PlotData_Correct,0);
277: push (@PlotData_Incorrect,0);
278: } else {
279: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
280: push (@PlotData_Correct,
281: int(100*$DataSet{$foilid}/$total));
282: push (@PlotData_Incorrect,0);
283: } else {
284: push (@PlotData_Correct,0);
285: push (@PlotData_Incorrect,
286: int(100*$DataSet{$foilid}/$total));
287: }
288: }
289: }
290: my $title='Attempt '.$try;
291: my $xlabel = $total.' Submissions';
292: $html.= &Apache::loncommon::DrawBarGraph($title,
293: $xlabel,
294: 'Percent Choosing',
295: 100,
296: ['#33ff00','#ff3300'],
297: \@PlotData_Correct,
298: \@PlotData_Incorrect);
299: }
300: return $html;
301: }
302:
303: sub RR_Tries_Concept_Analysis {
304: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
305: my $html;
306: return $html;
307: }
308:
309: sub RR_Time_Foil_Analysis {
310: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
311: my $html;
312: return $html;
313: }
314:
315: sub RR_Time_Concept_Analysis {
316: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
317: my $html;
318: return $html;
319: }
320:
321:
322: sub get_Radio_problem_data {
323: my ($url) = @_;
324: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
325: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
326: my %Answer = &Apache::lonnet::str2hash($Answ);
327: my %Partdata;
328: foreach my $part (@{$Answer{'parts'}}) {
329: while (my($key,$value) = each(%Answer)) {
330: # if (ref($value) eq 'ARRAY') {
331: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
332: # } else {
333: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
334: # }
335: next if ($key !~ /^$part/);
336: $key =~ s/^$part\.//;
337: if ($key eq 'foils') {
338: $Partdata{$part}->{'_Foils'}=$value;
339: } elsif ($key eq 'options') {
340: $Partdata{$part}->{'_Options'}=$value;
341: } elsif ($key eq 'shown') {
342: $Partdata{$part}->{'_Shown'}=$value;
343: } elsif ($key =~ /^foil.value.(.*)$/) {
344: $Partdata{$part}->{$1}->{'value'}=$value;
345: } elsif ($key =~ /^foil.text.(.*)$/) {
346: $Partdata{$part}->{$1}->{'text'}=$value;
347: }
348: }
349: }
350: return %Partdata;
1.47 matthew 351: }
1.48 matthew 352:
1.33 matthew 353: #########################################################
354: #########################################################
355: ##
1.46 matthew 356: ## Option Response Routines
1.33 matthew 357: ##
358: #########################################################
359: #########################################################
1.46 matthew 360: sub OptionResponseAnalysis {
1.56 matthew 361: my ($r,$problem,$ProblemData,$Students) = @_;
362: my ($resource,$respid) = ($problem->{'resource'},
363: $problem->{'respid'});
364: # Note: part data is not needed.
1.46 matthew 365: my $PerformanceData =
1.47 matthew 366: &Apache::loncoursedata::get_response_data
1.54 matthew 367: ($Students,$resource->{'symb'},$respid);
1.46 matthew 368: if (! defined($PerformanceData) ||
369: ref($PerformanceData) ne 'ARRAY' ) {
370: $r->print('<h2>'.
371: &mt('There is no student data for this problem.').
372: '</h2>');
373: } else {
374: $r->rflush();
375: if (exists($ENV{'form.ExcelOutput'})) {
1.57 matthew 376: my $result = &OR_excel_sheet($r,$resource,
377: $PerformanceData,
378: $ProblemData);
1.46 matthew 379: $r->print($result);
380: $r->rflush();
1.39 matthew 381: } else {
1.46 matthew 382: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.57 matthew 383: my $analysis_html = &OR_tries_analysis($r,
1.46 matthew 384: $PerformanceData,
385: $ProblemData);
386: $r->print($analysis_html);
387: $r->rflush();
388: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.57 matthew 389: my $analysis_html = &OR_time_analysis($PerformanceData,
1.46 matthew 390: $ProblemData);
391: $r->print($analysis_html);
392: $r->rflush();
1.39 matthew 393: } else {
1.46 matthew 394: $r->print('<h2>'.
395: &mt('The analysis you have selected is '.
396: 'not supported at this time').
397: '</h2>');
398: }
1.36 matthew 399: }
1.39 matthew 400: }
401: }
402:
1.33 matthew 403: #########################################################
1.46 matthew 404: #
405: # Option Response: Tries Analysis
406: #
1.33 matthew 407: #########################################################
1.57 matthew 408: sub OR_tries_analysis {
1.43 matthew 409: my ($r,$PerformanceData,$ORdata) = @_;
1.33 matthew 410: my $mintries = 1;
411: my $maxtries = $ENV{'form.NumPlots'};
1.39 matthew 412: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
413: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
414: $table = '<h3>'.
415: &mt('Not enough data for concept analysis. '.
416: 'Performing Foil Analysis').
417: '</h3>'.$table;
418: $ENV{'form.AnalyzeAs'} = 'Foils';
419: }
1.57 matthew 420: my %ResponseData = &OR_analyze_by_tries($r,$PerformanceData,
1.36 matthew 421: $mintries,$maxtries);
1.42 matthew 422: my $analysis = '';
423: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
1.57 matthew 424: $analysis = &OR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
1.42 matthew 425: \%ResponseData,$ORdata);
426: } else {
1.57 matthew 427: $analysis = &OR_Tries_Concept_Analysis($mintries,$maxtries,
1.42 matthew 428: $Concepts,\%ResponseData,$ORdata);
429: }
430: $table .= $analysis;
431: return $table;
432: }
433:
1.57 matthew 434: sub OR_Tries_Foil_Analysis {
1.42 matthew 435: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
436: my %ResponseData = %$respdat;
1.31 matthew 437: #
438: # Compute the data neccessary to make the plots
1.42 matthew 439: my @PlotData;
440: foreach my $foilid (@$Foils) {
441: for (my $i=$mintries;$i<=$maxtries;$i++) {
442: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
443: push(@{$PlotData[$i]->{'_correct'}},0);
444: } else {
445: push(@{$PlotData[$i]->{'_correct'}},
446: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
447: $ResponseData{$foilid}->[$i]->{'_total'});
448: }
1.48 matthew 449: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 450: push(@{$PlotData[$i]->{'_total'}},
451: $ResponseData{$foilid}->[$i]->{'_total'});
452: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
453: push (@{$PlotData[$i]->{$option}},0);
454: } else {
455: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
456: $ResponseData{$foilid}->[$i]->{'_correct'}) {
457: push(@{$PlotData[$i]->{$option}},0);
1.39 matthew 458: } else {
459: push (@{$PlotData[$i]->{$option}},
460: 100 * $ResponseData{$foilid}->[$i]->{$option} /
1.42 matthew 461: ($ResponseData{$foilid}->[$i]->{'_total'} -
462: $ResponseData{$foilid}->[$i]->{'_correct'}));
1.39 matthew 463: }
1.36 matthew 464: }
465: }
466: }
1.42 matthew 467: }
468: #
469: # Build a table for the plots
470: my $analysis_html = "<table>\n";
471: my $foilkey = &build_option_index($ORdata);
472: for (my $i=$mintries;$i<=$maxtries;$i++) {
473: my $count = $ResponseData{'_total'}->[$i];
474: if ($count == 0) {
475: $count = 'no submissions';
476: } elsif ($count == 1) {
477: $count = '1 submission';
478: } else {
479: $count = $count.' submissions';
480: }
481: my $title = 'Attempt '.$i.', '.$count;
482: my @Datasets;
1.48 matthew 483: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
1.42 matthew 484: next if (! exists($PlotData[$i]->{$option}));
485: push(@Datasets,$PlotData[$i]->{$option});
486: }
1.46 matthew 487: my $correctgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 488: ($title,'Foil Number','Percent Correct',
489: 100,$plotcolors,$Datasets[0]);
490: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
491: ##
492: ##
1.57 matthew 493: next if (! defined($Datasets[0]));
1.42 matthew 494: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
495: $Datasets[0]->[$i]=0;
496: }
497: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
498: if ($count == 0) {
499: $count = 'no submissions';
500: } elsif ($count == 1) {
501: $count = '1 submission';
502: } else {
503: $count = $count.' submissions';
504: }
505: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 506: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 507: ($title,'Foil Number','% Option Chosen Incorrectly',
508: 100,$plotcolors,@Datasets);
509: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
510: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
511: }
512: $analysis_html .= "</table>\n";
513: return $analysis_html;
514: }
515:
1.57 matthew 516: sub OR_Tries_Concept_Analysis {
1.42 matthew 517: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
518: my %ResponseData = %$respdat;
519: my $analysis_html = "<table>\n";
520: #
521: # Compute the data neccessary to make the plots
522: my @PlotData;
523: # Concept analysis
524: #
525: # Note: we do not bother with characterizing the students incorrect
526: # answers at the concept level because an incorrect answer for one foil
527: # may be a correct answer for another foil.
528: my %ConceptData;
529: foreach my $concept (@{$Concepts}) {
530: for (my $i=$mintries;$i<=$maxtries;$i++) {
531: #
532: # Gather the per-attempt data
533: my $cdata = $ConceptData{$concept}->[$i];
534: foreach my $foilid (@{$concept->{'foils'}}) {
535: $cdata->{'_correct'} +=
536: $ResponseData{$foilid}->[$i]->{'_correct'};
537: $cdata->{'_total'} +=
538: $ResponseData{$foilid}->[$i]->{'_total'};
539: }
540: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
541: if ($cdata->{'_total'} == 0) {
542: push (@{$PlotData[$i]->{'_correct'}},0);
543: } else {
544: push (@{$PlotData[$i]->{'_correct'}},
545: 100*$cdata->{'_correct'}/$cdata->{'_total'});
1.36 matthew 546: }
1.25 matthew 547: }
1.42 matthew 548: }
1.31 matthew 549: # Build a table for the plots
1.25 matthew 550: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.39 matthew 551: my $minstu = $PlotData[$i]->{'_total'}->[0];
552: my $maxstu = $PlotData[$i]->{'_total'}->[0];
553: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
1.36 matthew 554: if ($minstu > $count) {
555: $minstu = $count;
1.27 matthew 556: }
1.36 matthew 557: if ($maxstu < $count) {
558: $maxstu = $count;
1.27 matthew 559: }
560: }
1.39 matthew 561: $maxstu = 0 if (! defined($maxstu));
562: $minstu = 0 if (! defined($minstu));
1.35 matthew 563: my $title;
1.42 matthew 564: my $count = $ResponseData{'_total'}->[$i];
565: if ($count == 0) {
566: $count = 'no submissions';
567: } elsif ($count == 1) {
568: $count = '1 submission';
1.27 matthew 569: } else {
1.42 matthew 570: $count = $count.' submissions';
1.39 matthew 571: }
1.42 matthew 572: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 573: my $graphlink = &Apache::loncommon::DrawBarGraph
1.42 matthew 574: ($title,'Concept Number','Percent Correct',
575: 100,$plotcolors,$PlotData[$i]->{'_correct'});
576: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
1.25 matthew 577: }
1.42 matthew 578: $analysis_html .= "</table>\n";
579: return $analysis_html;
1.25 matthew 580: }
581:
1.57 matthew 582: sub OR_analyze_by_tries {
1.43 matthew 583: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 584: my %Trydata;
585: $mintries = 1 if (! defined($mintries) || $mintries < 1);
586: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 587: foreach my $row (@$PerformanceData) {
588: next if (! defined($row));
1.47 matthew 589: my $tries = &get_tries_from_row($row);
1.46 matthew 590: my %Row = &Process_OR_Row($row);
1.43 matthew 591: next if (! %Row);
1.42 matthew 592: while (my ($foilid,$href) = each(%Row)) {
593: if (! ref($href)) {
594: $Trydata{$foilid}->[$tries] += $href;
595: next;
596: }
597: while (my ($option,$value) = each(%$href)) {
598: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1.25 matthew 599: }
600: }
601: }
602: return %Trydata;
603: }
604:
1.33 matthew 605: #########################################################
1.46 matthew 606: #
607: # Option Response: Time Analysis
608: #
1.33 matthew 609: #########################################################
1.57 matthew 610: sub OR_time_analysis {
1.33 matthew 611: my ($PerformanceData,$ORdata) = @_;
1.42 matthew 612: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
613: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
614: $table = '<h3>'.
615: &mt('Not enough data for concept analysis. '.
616: 'Performing Foil Analysis').
617: '</h3>'.$table;
618: $ENV{'form.AnalyzeAs'} = 'Foils';
619: }
1.33 matthew 620: my $num_plots = $ENV{'form.NumPlots'};
621: my $num_data = scalar(@$PerformanceData)-1;
622: my $percent = sprintf('%2f',100/$num_plots);
1.42 matthew 623: #
1.37 matthew 624: $table .= "<table>\n";
1.33 matthew 625: for (my $i=0;$i<$num_plots;$i++) {
1.42 matthew 626: ##
1.34 matthew 627: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
628: ('startdate_'.$i);
629: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
630: ('enddate_'.$i);
631: if (! defined($starttime) || ! defined($endtime)) {
1.42 matthew 632: my $sec_in_day = 86400;
1.47 matthew 633: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
1.42 matthew 634: my ($sday,$smon,$syear);
635: (undef,undef,undef,$sday,$smon,$syear) =
636: localtime($last_sub_time - $sec_in_day*$i);
637: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
638: $endtime = $starttime + $sec_in_day;
639: if ($i == ($num_plots -1 )) {
1.47 matthew 640: $starttime = &get_time_from_row($PerformanceData->[0]);
1.42 matthew 641: }
642: }
1.34 matthew 643: my $startdateform = &Apache::lonhtmlcommon::date_setter
644: ('Statistics','startdate_'.$i,$starttime);
645: my $enddateform = &Apache::lonhtmlcommon::date_setter
646: ('Statistics','enddate_'.$i,$endtime);
1.42 matthew 647: #
648: my $begin_index;
649: my $end_index;
650: my $j;
651: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 652: last if (&get_time_from_row($PerformanceData->[$j])
1.46 matthew 653: > $starttime);
1.42 matthew 654: }
655: $begin_index = $j;
656: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 657: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
1.42 matthew 658: }
659: $end_index = $j;
660: ##
661: my $interval = {
662: begin_index => $begin_index,
663: end_index => $end_index,
664: startdateform => $startdateform,
665: enddateform => $enddateform,
666: };
667: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
1.57 matthew 668: $table .= &OR_Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
1.42 matthew 669: $interval);
670: } else {
1.57 matthew 671: $table .= &OR_Concept_Time_Analysis($PerformanceData,$ORdata,
1.42 matthew 672: $Concepts,$interval);
673: }
1.33 matthew 674: }
1.42 matthew 675: #
1.33 matthew 676: return $table;
677: }
678:
1.57 matthew 679: sub OR_Foil_Time_Analysis {
1.42 matthew 680: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
681: my $analysis_html;
682: my $foilkey = &build_option_index($ORdata);
683: my ($begin_index,$end_index) = ($interval->{'begin_index'},
684: $interval->{'end_index'});
1.33 matthew 685: my %TimeData;
686: #
687: # Compute the number getting the foils correct or incorrects
1.42 matthew 688: for (my $j=$begin_index;$j<=$end_index;$j++) {
689: my $row = $PerformanceData->[$j];
1.33 matthew 690: next if (! defined($row));
1.46 matthew 691: my %Row = &Process_OR_Row($row);
1.42 matthew 692: while (my ($foilid,$href) = each(%Row)) {
693: if (! ref($href)) {
694: $TimeData{$foilid} += $href;
695: next;
696: }
697: while (my ($option,$value) = each(%$href)) {
698: $TimeData{$foilid}->{$option}+=$value;
1.33 matthew 699: }
700: }
701: }
1.39 matthew 702: my @Plotdata;
1.42 matthew 703: foreach my $foil (@$Foils) {
704: my $total = $TimeData{$foil}->{'_total'};
705: if ($total == 0) {
706: push(@{$Plotdata[0]},0);
707: } else {
708: push(@{$Plotdata[0]},
709: 100 * $TimeData{$foil}->{'_correct'} / $total);
710: }
711: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
712: my $optionidx = 1;
1.48 matthew 713: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 714: if ($total_incorrect == 0) {
715: push(@{$Plotdata[$optionidx]},0);
716: } else {
717: push(@{$Plotdata[$optionidx]},
718: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
1.37 matthew 719: }
1.42 matthew 720: } continue {
721: $optionidx++;
1.39 matthew 722: }
1.42 matthew 723: }
724: #
725: # Create the plot
726: my $count = $end_index-$begin_index;
727: my $title;
728: if ($count == 0) {
729: $title = 'no submissions';
730: } elsif ($count == 1) {
731: $title = 'one submission';
1.39 matthew 732: } else {
1.42 matthew 733: $title = $count.' submissions';
734: }
1.46 matthew 735: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
736: 'Foil Number',
737: 'Percent Correct',
738: 100,
739: $plotcolors,
740: $Plotdata[0]);
1.42 matthew 741: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
742: $Plotdata[0]->[$j]=0;
743: }
744: $count = $end_index-$begin_index-$TimeData{'_correct'};
745: if ($count == 0) {
746: $title = 'no submissions';
747: } elsif ($count == 1) {
748: $title = 'one submission';
749: } else {
750: $title = $count.' submissions';
751: }
1.46 matthew 752: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 753: 'Foil Number',
754: 'Incorrect Option Choice',
755: 100,
756: $plotcolors,
757: @Plotdata);
758: $analysis_html.='<tr>'.
759: '<td>'.$correctplot.'</td>'.
760: '<td>'.$incorrectplot.'</td>'.
761: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
762: $analysis_html.= '<tr>'.'<td colspan="3">'.
763: '<b>Start Time</b>:'.
764: ' '.$interval->{'startdateform'}.'<br />'.
765: '<b>End Time</b> : '.
766: ' '.$interval->{'enddateform'}.'<br />'.
767: # '<b>Plot Title</b> :'.
768: # (" "x3).$interval->{'titleform'}.
769: '</td>'.
770: "</tr>\n";
771: return $analysis_html;
772: }
773:
1.57 matthew 774: sub OR_Concept_Time_Analysis {
1.42 matthew 775: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
776: my $analysis_html;
777: ##
778: ## Determine starttime, endtime, startindex, endindex
779: my ($begin_index,$end_index) = ($interval->{'begin_index'},
780: $interval->{'end_index'});
781: my %TimeData;
782: #
783: # Compute the number getting the foils correct or incorrects
784: for (my $j=$begin_index;$j<=$end_index;$j++) {
785: my $row = $PerformanceData->[$j];
786: next if (! defined($row));
1.46 matthew 787: my %Row = &Process_OR_Row($row);
1.42 matthew 788: while (my ($foilid,$href) = each(%Row)) {
789: if (! ref($href)) {
790: $TimeData{$foilid} += $href;
791: next;
1.37 matthew 792: }
1.42 matthew 793: while (my ($option,$value) = each(%$href)) {
794: $TimeData{$foilid}->{$option}+=$value;
1.37 matthew 795: }
1.33 matthew 796: }
797: }
798: #
1.42 matthew 799: # Put the data in plottable form
800: my @Plotdata;
801: foreach my $concept (@$Concepts) {
802: my ($total,$correct);
803: foreach my $foil (@{$concept->{'foils'}}) {
804: $total += $TimeData{$foil}->{'_total'};
805: $correct += $TimeData{$foil}->{'_correct'};
806: }
807: if ($total == 0) {
808: push(@Plotdata,0);
809: } else {
810: push(@Plotdata,100 * $correct / $total);
811: }
812: }
813: #
1.33 matthew 814: # Create the plot
1.42 matthew 815: my $title = ($end_index - $begin_index).' submissions';
1.46 matthew 816: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 817: 'Concept Number',
818: 'Percent Correct',
819: 100,
820: $plotcolors,
821: \@Plotdata);
822: $analysis_html.='<tr>'.
823: '<td>'.$correctplot.'</td>'.
824: '<td align="left" valign="top">'.
825: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
826: '<b>End Time</b> : '.
827: ' '.$interval->{'enddateform'}.'<br />'.
828: # '<b>Plot Title</b> :'.(" "x3).
829: # $interval->{'titleform'}.
830: '</td>'.
831: "</tr>\n";
832: return $analysis_html;
833: }
834:
835: #########################################################
836: #########################################################
837: ##
838: ## Excel output
839: ##
840: #########################################################
841: #########################################################
1.57 matthew 842: sub OR_excel_sheet {
1.43 matthew 843: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1.44 matthew 844: my $response = '';
1.42 matthew 845: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1.43 matthew 846: #
847: # Create excel worksheet
848: my $filename = '/prtspool/'.
849: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
850: time.'_'.rand(1000000000).'.xls';
851: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
852: if (! defined($workbook)) {
853: $r->log_error("Error creating excel spreadsheet $filename: $!");
854: $r->print('<p>'.&mt("Unable to create new Excel file. ".
855: "This error has been logged. ".
856: "Please alert your LON-CAPA administrator").
857: '</p>');
858: return undef;
859: }
860: #
861: $workbook->set_tempdir('/home/httpd/perl/tmp');
862: #
863: # Define some potentially useful formats
864: my $format;
865: $format->{'header'} = $workbook->add_format(bold => 1,
866: bottom => 1,
867: align => 'center');
868: $format->{'bold'} = $workbook->add_format(bold=>1);
869: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
870: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
871: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
872: $format->{'date'} = $workbook->add_format(num_format=>
873: 'mmm d yyyy hh:mm AM/PM');
874: #
875: # Create and populate main worksheets
876: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
877: my $student_data_sheet = $workbook->addworksheet('Student Data');
878: my $response_data_sheet = $workbook->addworksheet('Response Data');
879: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
880: $response_data_sheet) {
881: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
882: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
883: }
884: #
885: my $result;
1.59 matthew 886: $result = &OR_build_problem_data_worksheet($problem_data_sheet,$format,
1.43 matthew 887: $Concepts,$ORdata);
888: if ($result ne 'okay') {
889: # Do something useful
890: }
1.59 matthew 891: $result = &OR_build_student_data_worksheet($student_data_sheet,$format);
1.43 matthew 892: if ($result ne 'okay') {
893: # Do something useful
894: }
1.59 matthew 895: $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
1.43 matthew 896: $PerformanceData,$Foils,
897: $ORdata);
898: if ($result ne 'okay') {
899: # Do something useful
900: }
1.44 matthew 901: $response_data_sheet->activate();
1.43 matthew 902: #
903: # Close the excel file
904: $workbook->close();
905: #
906: # Write a link to allow them to download it
1.44 matthew 907: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
908: '<p><a href="'.$filename.'">'.
909: &mt('Your Excel spreadsheet.').
910: '</a></p>'."\n";
1.43 matthew 911: return $result;
912: }
913:
1.57 matthew 914: sub OR_build_problem_data_worksheet {
1.43 matthew 915: my ($worksheet,$format,$Concepts,$ORdata) = @_;
916: my $rows_output = 3;
917: my $cols_output = 0;
918: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
919: ##
920: ##
921: my @Headers;
922: if (@$Concepts > 1) {
923: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
924: 'Foil Name','Foil Text','Correct value');
925: } else {
926: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
927: }
928: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1.48 matthew 929: my %Foildata = %{$ORdata->{'_Foils'}};
1.43 matthew 930: my $conceptindex = 1;
931: my $foilindex = 1;
932: foreach my $concept (@$Concepts) {
933: my @FoilsInConcept = @{$concept->{'foils'}};
934: my $firstfoil = shift(@FoilsInConcept);
935: if (@$Concepts > 1) {
936: $worksheet->write_row($rows_output++,0,
937: [$conceptindex,
938: $concept->{'name'},
939: $foilindex++,
940: $Foildata{$firstfoil}->{'name'},
941: $Foildata{$firstfoil}->{'text'},
942: $Foildata{$firstfoil}->{'value'},]);
943: } else {
944: $worksheet->write_row($rows_output++,0,
945: [ $foilindex++,
946: $Foildata{$firstfoil}->{'name'},
947: $Foildata{$firstfoil}->{'text'},
948: $Foildata{$firstfoil}->{'value'},]);
949: }
950: foreach my $foilid (@FoilsInConcept) {
951: if (@$Concepts > 1) {
952: $worksheet->write_row($rows_output++,0,
953: ['',
954: '',
955: $foilindex,
956: $Foildata{$foilid}->{'name'},
957: $Foildata{$foilid}->{'text'},
958: $Foildata{$foilid}->{'value'},]);
959: } else {
960: $worksheet->write_row($rows_output++,0,
961: [$foilindex,
962: $Foildata{$foilid}->{'name'},
963: $Foildata{$foilid}->{'text'},
964: $Foildata{$foilid}->{'value'},]);
965: }
966: } continue {
967: $foilindex++;
968: }
969: } continue {
970: $conceptindex++;
971: }
972: $rows_output++;
973: $rows_output++;
974: ##
975: ## Option data output
976: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1.48 matthew 977: foreach my $string (@{$ORdata->{'_Options'}}) {
1.43 matthew 978: $worksheet->write($rows_output++,0,$string);
979: }
980: return 'okay';
981: }
982:
1.57 matthew 983: sub OR_build_student_data_worksheet {
1.43 matthew 984: my ($worksheet,$format) = @_;
985: my $rows_output = 3;
986: my $cols_output = 0;
987: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
988: my @Headers = ('full name','username','domain','section',
989: "student\nnumber",'identifier');
990: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
991: my @Students = @Apache::lonstatistics::Students;
992: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
993: my %ids;
994: foreach my $row (@$studentrows) {
995: my ($mysqlid,$student) = @$row;
996: $ids{$student}=$mysqlid;
997: }
998: foreach my $student (@Students) {
999: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
1000: $worksheet->write_row($rows_output++,0,
1001: [$student->{'fullname'},
1002: $student->{'username'},$student->{'domain'},
1003: $student->{'section'},$student->{'id'},
1004: $ids{$name_domain}]);
1005: }
1006: return;
1007: }
1008:
1.57 matthew 1009: sub OR_build_response_data_worksheet {
1.43 matthew 1010: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1011: my $rows_output = 3;
1012: my $cols_output = 0;
1013: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1014: $worksheet->set_column(1,1,20);
1015: $worksheet->set_column(2,2,13);
1016: my @Headers = ('identifier','time','award detail','attempt');
1017: foreach my $foil (@$Foils) {
1018: push (@Headers,$foil.' submission');
1019: push (@Headers,$foil.' grading');
1020: }
1021: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1022: #
1023: foreach my $row (@$PerformanceData) {
1024: next if (! defined($row));
1025: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1026: my @Foilgrades = split('&',$grading);
1027: my @Foilsubs = split('&',$submission);
1028: my %ResponseData;
1029: for (my $j=0;$j<=$#Foilgrades;$j++) {
1030: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1031: my (undef,$submission) = split('=',$Foilsubs[$j]);
1032: $submission = &Apache::lonnet::unescape($submission);
1033: $ResponseData{$foilid.' submission'}=$submission;
1034: $ResponseData{$foilid.' award'}=$correct;
1035: }
1036: $worksheet->write($rows_output,$cols_output++,$student);
1037: $worksheet->write($rows_output,$cols_output++,
1038: &calc_serial($time),$format->{'date'});
1039: $worksheet->write($rows_output,$cols_output++,$award);
1040: $worksheet->write($rows_output,$cols_output++,$tries);
1041: foreach my $foilid (@$Foils) {
1042: $worksheet->write($rows_output,$cols_output++,
1043: $ResponseData{$foilid.' submission'});
1044: $worksheet->write($rows_output,$cols_output++,
1045: $ResponseData{$foilid.' award'});
1046: }
1047: $rows_output++;
1048: $cols_output = 0;
1049: }
1050: return;
1.42 matthew 1051: }
1052:
1.43 matthew 1053:
1054: ##
1055: ## The following is copied from datecalc1.pl, part of the
1056: ## Spreadsheet::WriteExcel CPAN module.
1057: ##
1058: ##
1059: ######################################################################
1060: #
1061: # Demonstration of writing date/time cells to Excel spreadsheets,
1062: # using UNIX/Perl time as source of date/time.
1063: #
1064: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
1065: #
1066: ######################################################################
1067: #
1068: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
1069: # measured in seconds.
1070: #
1071: # An Excel file can use exactly one of two different date/time systems.
1072: # In these systems, a floating point number represents the number of days
1073: # (and fractional parts of the day) since a start point. The floating point
1074: # number is referred to as a 'serial'.
1075: # The two systems ('1900' and '1904') use different starting points:
1076: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
1077: # a leap year - see:
1078: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
1079: # for the excuse^H^H^H^H^H^Hreason.
1080: # '1904'; '1.00' is 2 Jan 1904.
1081: #
1082: # The '1904' system is the default for Apple Macs. Windows versions of
1083: # Excel have the option to use the '1904' system.
1084: #
1085: # Note that Visual Basic's "DateSerial" function does NOT erroneously
1086: # regard 1900 as a leap year, and thus its serials do not agree with
1087: # the 1900 serials of Excel for dates before 1 Mar 1900.
1088: #
1089: # Note that StarOffice (at least at version 5.2) does NOT erroneously
1090: # regard 1900 as a leap year, and thus its serials do not agree with
1091: # the 1900 serials of Excel for dates before 1 Mar 1900.
1092: #
1093: ######################################################################
1094: #
1095: # Calculation description
1096: # =======================
1097: #
1098: # 1900 system
1099: # -----------
1100: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
1101: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1102: # were leap years with an extra day.
1103: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
1104: # 1 Jan 1970.
1105: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
1106: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
1107: #
1108: # 1904 system
1109: # -----------
1110: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
1111: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1112: # were leap years with an extra day.
1113: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
1114: # 1 Jan 1970.
1115: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
1116: #
1117: ######################################################################
1118: #
1119: # Copyright (c) 2000, Andrew Benham.
1120: # This program is free software. It may be used, redistributed and/or
1121: # modified under the same terms as Perl itself.
1122: #
1123: # Andrew Benham, adsb@bigfoot.com
1124: # London, United Kingdom
1125: # 11 Nov 2000
1126: #
1127: ######################################################################
1128:
1129: # Use 1900 date system on all platforms other than Apple Mac (for which
1130: # use 1904 date system).
1131: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
1132:
1133: #-----------------------------------------------------------
1134: # calc_serial()
1135: #
1136: # Called with (up to) 2 parameters.
1137: # 1. Unix timestamp. If omitted, uses current time.
1138: # 2. GMT flag. Set to '1' to return serial in GMT.
1139: # If omitted, returns serial in appropriate timezone.
1140: #
1141: # Returns date/time serial according to $DATE_SYSTEM selected
1142: #-----------------------------------------------------------
1143: sub calc_serial {
1144: my $time = (defined $_[0]) ? $_[0] : time();
1145: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
1146:
1147: # Divide timestamp by number of seconds in a day.
1148: # This gives a date serial with '0' on 1 Jan 1970.
1149: my $serial = $time / 86400;
1150:
1151: # Adjust the date serial by the offset appropriate to the
1152: # currently selected system (1900/1904).
1153: if ($DATE_SYSTEM == 0) { # use 1900 system
1154: $serial += 25569;
1155: } else { # use 1904 system
1156: $serial += 24107;
1157: }
1158:
1159: unless ($gmtflag) {
1160: # Now have a 'raw' serial with the right offset. But this
1161: # gives a serial in GMT, which is false unless the timezone
1162: # is GMT. We need to adjust the serial by the appropriate
1163: # timezone offset.
1164: # Calculate the appropriate timezone offset by seeing what
1165: # the differences between localtime and gmtime for the given
1166: # time are.
1167:
1168: my @gmtime = gmtime($time);
1169: my @ltime = localtime($time);
1170:
1171: # For the first 7 elements of the two arrays, adjust the
1172: # date serial where the elements differ.
1173: for (0 .. 6) {
1174: my $diff = $ltime[$_] - $gmtime[$_];
1175: if ($diff) {
1176: $serial += _adjustment($diff,$_);
1177: }
1178: }
1179: }
1180:
1181: # Perpetuate the error that 1900 was a leap year by decrementing
1182: # the serial if we're using the 1900 system and the date is prior to
1183: # 1 Mar 1900. This has the effect of making serial value '60'
1184: # 29 Feb 1900.
1185:
1186: # This fix only has any effect if UNIX/Perl time on the platform
1187: # can represent 1900. Many can't.
1188:
1189: unless ($DATE_SYSTEM) {
1190: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
1191: }
1192: return $serial;
1193: }
1194:
1195: sub _adjustment {
1196: # Based on the difference in the localtime/gmtime array elements
1197: # number, return the adjustment required to the serial.
1198:
1199: # We only look at some elements of the localtime/gmtime arrays:
1200: # seconds unlikely to be different as all known timezones
1201: # have an offset of integral multiples of 15 minutes,
1202: # but it's easy to do.
1203: # minutes will be different for timezone offsets which are
1204: # not an exact number of hours.
1205: # hours very likely to be different.
1206: # weekday will differ when localtime/gmtime difference
1207: # straddles midnight.
1208: #
1209: # Assume that difference between localtime and gmtime is less than
1210: # 5 days, then don't have to do maths for day of month, month number,
1211: # year number, etc...
1212:
1213: my ($delta,$element) = @_;
1214: my $adjust = 0;
1215:
1216: if ($element == 0) { # Seconds
1217: $adjust = $delta/86400; # 60 * 60 * 24
1218: } elsif ($element == 1) { # Minutes
1219: $adjust = $delta/1440; # 60 * 24
1220: } elsif ($element == 2) { # Hours
1221: $adjust = $delta/24; # 24
1222: } elsif ($element == 6) { # Day of week number
1223: # Catch difference straddling Sat/Sun in either direction
1224: $delta += 7 if ($delta < -4);
1225: $delta -= 7 if ($delta > 4);
1226:
1227: $adjust = $delta;
1228: }
1229: return $adjust;
1.1 stredwic 1230: }
1231:
1.46 matthew 1232: sub build_foil_index {
1233: my ($ORdata) = @_;
1.48 matthew 1234: return if (! exists($ORdata->{'_Foils'}));
1235: my %Foildata = %{$ORdata->{'_Foils'}};
1.46 matthew 1236: my @Foils = sort(keys(%Foildata));
1237: my %Concepts;
1238: foreach my $foilid (@Foils) {
1.48 matthew 1239: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1.46 matthew 1240: $foilid);
1241: }
1242: undef(@Foils);
1243: # Having gathered the concept information in a hash, we now translate it
1244: # into an array because we need to be consistent about order.
1245: # Also put the foils in order, too.
1246: my $sortfunction = sub {
1247: my %Numbers = (one => 1,
1248: two => 2,
1249: three => 3,
1250: four => 4,
1251: five => 5,
1252: six => 6,
1253: seven => 7,
1254: eight => 8,
1255: nine => 9,
1256: ten => 10,);
1257: my $a1 = lc($a);
1258: my $b1 = lc($b);
1.57 matthew 1259: if (exists($Numbers{$a1})) {
1260: $a = $Numbers{$a1};
1261: }
1262: if (exists($Numbers{$b1})) {
1263: $b = $Numbers{$b1};
1.46 matthew 1264: }
1.57 matthew 1265: if (($a =~/^\d+$/) && ($b =~/^\d+$/)) {
1266: return $a <=> $b;
1267: } else {
1268: return $a cmp $b;
1.46 matthew 1269: }
1270: };
1271: my @Concepts;
1272: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1.57 matthew 1273: if (! defined($Concepts{$concept})) {
1274: $Concepts{$concept}=[];
1275: # next;
1276: }
1.46 matthew 1277: push(@Concepts,{ name => $concept,
1278: foils => [@{$Concepts{$concept}}]});
1279: push(@Foils,(@{$Concepts{$concept}}));
1280: }
1281: #
1282: # Build up the table of row labels.
1283: my $table = '<table border="1" >'."\n";
1284: if (@Concepts > 1) {
1285: $table .= '<tr>'.
1286: '<th>'.&mt('Concept Number').'</th>'.
1287: '<th>'.&mt('Concept').'</th>'.
1288: '<th>'.&mt('Foil Number').'</th>'.
1289: '<th>'.&mt('Foil Name').'</th>'.
1290: '<th>'.&mt('Foil Text').'</th>'.
1291: '<th>'.&mt('Correct Value').'</th>'.
1292: "</tr>\n";
1293: } else {
1294: $table .= '<tr>'.
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: }
1301: my $conceptindex = 1;
1302: my $foilindex = 1;
1303: foreach my $concept (@Concepts) {
1304: my @FoilsInConcept = @{$concept->{'foils'}};
1305: my $firstfoil = shift(@FoilsInConcept);
1306: if (@Concepts > 1) {
1307: $table .= '<tr>'.
1308: '<td>'.$conceptindex.'</td>'.
1309: '<td>'.$concept->{'name'}.'</td>'.
1310: '<td>'.$foilindex++.'</td>'.
1311: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1312: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1313: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1314: "</tr>\n";
1315: } else {
1316: $table .= '<tr>'.
1317: '<td>'.$foilindex++.'</td>'.
1318: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1319: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1320: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1321: "</tr>\n";
1322: }
1323: foreach my $foilid (@FoilsInConcept) {
1324: if (@Concepts > 1) {
1325: $table .= '<tr>'.
1326: '<td></td>'.
1327: '<td></td>'.
1328: '<td>'.$foilindex.'</td>'.
1329: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1330: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1331: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1332: "</tr>\n";
1333: } else {
1334: $table .= '<tr>'.
1335: '<td>'.$foilindex.'</td>'.
1336: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1337: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1338: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1339: "</tr>\n";
1340: }
1341: } continue {
1342: $foilindex++;
1343: }
1344: } continue {
1345: $conceptindex++;
1346: }
1347: $table .= "</table>\n";
1348: #
1349: # Build option index with color stuff
1350: return ($table,\@Foils,\@Concepts);
1351: }
1352:
1353: sub build_option_index {
1354: my ($ORdata)= @_;
1355: my $table = "<table>\n";
1356: my $optionindex = 0;
1357: my @Rows;
1.48 matthew 1358: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1.46 matthew 1359: push (@Rows,
1360: '<tr>'.
1361: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1362: (' 'x4).'</td>'.
1363: '<td>'.$option.'</td>'.
1364: "</tr>\n");
1365: }
1366: shift(@Rows); # Throw away 'correct option chosen' color
1367: $table .= join('',reverse(@Rows));
1368: $table .= "</table>\n";
1369: }
1370:
1.33 matthew 1371: #########################################################
1372: #########################################################
1373: ##
1.46 matthew 1374: ## Generic Interface Routines
1.33 matthew 1375: ##
1376: #########################################################
1377: #########################################################
1.23 matthew 1378: sub CreateInterface {
1.28 matthew 1379: ##
1380: ## Environment variable initialization
1.36 matthew 1381: if (! exists$ENV{'form.AnalyzeOver'}) {
1382: $ENV{'form.AnalyzeOver'} = 'Tries';
1.28 matthew 1383: }
1384: ##
1385: ## Build the menu
1.7 stredwic 1386: my $Str = '';
1.23 matthew 1387: $Str .= '<table cellspacing="5">'."\n";
1388: $Str .= '<tr>';
1389: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1390: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 1391: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1392: $Str .= '<td align="center"> </td>';
1.23 matthew 1393: $Str .= '</tr>'."\n";
1.31 matthew 1394: ##
1395: ##
1.23 matthew 1396: $Str .= '<tr><td align="center">'."\n";
1397: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 1398: $Str .= '</td>';
1399: #
1400: $Str .= '<td align="center">';
1.23 matthew 1401: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 1402: $Str .= '</td>';
1403: #
1.31 matthew 1404: # $Str .= '<td align="center">';
1.23 matthew 1405: my $only_seq_with_assessments = sub {
1406: my $s=shift;
1407: if ($s->{'num_assess'} < 1) {
1408: return 0;
1409: } else {
1410: return 1;
1411: }
1412: };
1.31 matthew 1413: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 1414: $only_seq_with_assessments);
1.36 matthew 1415: ##
1416: ##
1.28 matthew 1417: $Str .= '<td>';
1.36 matthew 1418: { # These braces are here to organize the code, not scope it.
1419: {
1420: $Str .= '<nobr>'.&mt('Analyze Over ');
1.51 matthew 1421: $Str .= &Apache::loncommon::help_open_topic
1422: ('Analysis_Analyze_Over');
1.36 matthew 1423: $Str .='<select name="AnalyzeOver" >';
1424: $Str .= '<option value="Tries" ';
1425: if (! exists($ENV{'form.AnalyzeOver'}) ||
1426: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1427: # Default to Tries
1428: $Str .= ' selected ';
1429: }
1430: $Str .= '>'.&mt('Tries').'</option>';
1431: $Str .= '<option value="Time" ';
1432: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1433: $Str .= '>'.&mt('Time').'</option>';
1.51 matthew 1434: $Str .= '</select>';
1435: $Str .= '</nobr><br />';
1.36 matthew 1436: }
1437: {
1438: $Str .= '<nobr>'.&mt('Analyze as ');
1.51 matthew 1439: $Str .= &Apache::loncommon::help_open_topic
1440: ('Analysis_Analyze_as');
1.36 matthew 1441: $Str .='<select name="AnalyzeAs" >';
1442: $Str .= '<option value="Concepts" ';
1443: if (! exists($ENV{'form.AnalyzeAs'}) ||
1444: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1445: # Default to Concepts
1446: $Str .= ' selected ';
1447: }
1448: $Str .= '>'.&mt('Concepts').'</option>';
1449: $Str .= '<option value="Foils" ';
1450: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1451: $Str .= '>'.&mt('Foils').'</option>';
1452: $Str .= '</select></nobr><br />';
1453: }
1454: {
1455: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1.52 matthew 1456: $Str .= &Apache::loncommon::help_open_topic
1457: ('Analysis_num_plots');
1.36 matthew 1458: $Str .= '<select name="NumPlots">';
1459: if (! exists($ENV{'form.NumPlots'})
1460: || $ENV{'form.NumPlots'} < 1
1461: || $ENV{'form.NumPlots'} > 20) {
1462: $ENV{'form.NumPlots'} = 5;
1463: }
1464: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1465: $Str .= '<option value="'.$i.'" ';
1466: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1467: $Str .= '>'.$i.'</option>';
1468: }
1469: $Str .= '</select></nobr>';
1470: }
1.28 matthew 1471: }
1472: $Str .= '</td>';
1.36 matthew 1473: ##
1474: ##
1.28 matthew 1475: $Str .= '</tr>'."\n";
1.23 matthew 1476: $Str .= '</table>'."\n";
1.42 matthew 1477: return $Str;
1.23 matthew 1478: }
1479:
1.46 matthew 1480: sub ProblemSelector {
1.23 matthew 1481: my $Str;
1482: $Str = "\n<table>\n";
1483: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1484: next if ($seq->{'num_assess'}<1);
1485: my $seq_str = '';
1486: foreach my $res (@{$seq->{'contents'}}) {
1.26 matthew 1487: next if ($res->{'type'} ne 'assessment');
1.23 matthew 1488: foreach my $part (@{$res->{'parts'}}) {
1489: my $partdata = $res->{'partdata'}->{$part};
1.47 matthew 1490: # &Apache::lonnet::logthis('----------------');
1491: # while (my ($k,$v)=each(%$partdata)) {
1492: # if (ref($v) eq 'ARRAY') {
1493: # &Apache::lonnet::logthis($k.' = '.join(',',@$v));
1494: # } else {
1495: # &Apache::lonnet::logthis($k.' = '.$v);
1496: # }
1497: # }
1498: if ((! exists($partdata->{'option'}) ||
1499: $partdata->{'option'} == 0 ) &&
1500: (! exists($partdata->{'radiobutton'}) ||
1501: $partdata->{'radiobutton'} == 0)) {
1.23 matthew 1502: next;
1503: }
1504: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1505: my $respid = $partdata->{'ResponseIds'}->[$i];
1506: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1.56 matthew 1507: # if ($resptype eq 'option' ){
1508: if ($resptype eq 'option' || $resptype eq 'radiobutton') {
1.54 matthew 1509: my $value = &make_target_id({symb=>$res->{'symb'},
1510: part=>$part,
1511: respid=>$respid,
1512: resptype=>$resptype});
1.23 matthew 1513: my $checked = '';
1514: if ($ENV{'form.problemchoice'} eq $value) {
1515: $checked = 'checked ';
1516: }
1.50 matthew 1517: my $title = $res->{'title'};
1518: if (! defined($title) || $title eq '') {
1519: ($title) = ($res->{'src'} =~ m:/([^/]*)$:);
1520: }
1.23 matthew 1521: $seq_str .= '<tr><td>'.
1522: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
1.56 matthew 1523: '</td><td>'.
1.57 matthew 1524: $resptype.'</td><td>'.
1.50 matthew 1525: '<a href="'.$res->{'src'}.'">'.$title.'</a> ';
1.48 matthew 1526: # '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> ';
1.23 matthew 1527: if ($partdata->{'option'} > 1) {
1528: $seq_str .= &mt('response').' '.$respid;
1529: }
1530: $seq_str .= "</td></tr>\n";
1.11 minaeibi 1531: }
1532: }
1533: }
1534: }
1.23 matthew 1535: if ($seq_str ne '') {
1.57 matthew 1536: $Str .= '<tr><td> </td><td colspan="2"><b>'.$seq->{'title'}.'</b></td>'.
1.23 matthew 1537: "</tr>\n".$seq_str;
1538: }
1.11 minaeibi 1539: }
1.23 matthew 1540: $Str .= "</table>\n";
1541: return $Str;
1.33 matthew 1542: }
1543:
1544: #########################################################
1545: #########################################################
1546: ##
1547: ## Misc functions
1548: ##
1549: #########################################################
1550: #########################################################
1551: sub get_problem_symb {
1552: my $problemstring = shift();
1.54 matthew 1553: my ($symb,$partid,$respid,$resptype) = split(':',$problemstring);
1554: return ({ symb => $symb,
1555: part => $partid,
1556: respid => $respid,
1557: type => $resptype } );
1.11 minaeibi 1558: }
1559:
1.23 matthew 1560: sub get_resource_from_symb {
1561: my ($symb) = @_;
1562: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1563: foreach my $res (@{$seq->{'contents'}}) {
1564: if ($res->{'symb'} eq $symb) {
1565: return $res;
1.2 stredwic 1566: }
1.1 stredwic 1567: }
1568: }
1.23 matthew 1569: return undef;
1.42 matthew 1570: }
1571:
1.54 matthew 1572: sub get_prev_curr_next {
1573: my ($target) = @_;
1574: #
1575: # Build an array with the data we need to search through
1576: my @Resource;
1577: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1578: foreach my $res (@{$seq->{'contents'}}) {
1579: next if ($res->{'type'} ne 'assessment');
1580: foreach my $part (@{$res->{'parts'}}) {
1581: my $partdata = $res->{'partdata'}->{$part};
1582: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1583: my $respid = $partdata->{'ResponseIds'}->[$i];
1584: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1.56 matthew 1585: next if ($resptype ne 'option' &&
1586: $resptype ne 'radiobutton');
1.54 matthew 1587: push (@Resource,
1588: { symb => $res->{symb},
1589: part => $part,
1590: respid => $partdata->{'ResponseIds'}->[$i],
1591: resource => $res,
1592: resptype => $resptype
1593: } );
1594: }
1595: }
1596: }
1597: }
1598: #
1599: #
1600: # Get the index of the current situation
1601: my $curr_idx;
1602: for ($curr_idx=0;$curr_idx<$#Resource;$curr_idx++) {
1603: my $curr_item = $Resource[$curr_idx];
1604: last if ($curr_item->{'symb'} eq $target->{'symb'} &&
1605: $curr_item->{'part'} eq $target->{'part'} &&
1606: $curr_item->{'respid'} eq $target->{'respid'} &&
1607: $curr_item->{'resptype'} eq $target->{'resptype'});
1608: }
1609: my $curr_item = $Resource[$curr_idx];
1610: if ($curr_item->{'symb'} ne $target->{'symb'} ||
1611: $curr_item->{'part'} ne $target->{'part'} ||
1612: $curr_item->{'respid'} ne $target->{'respid'} ||
1613: $curr_item->{'resptype'} ne $target->{'resptype'}){
1614: # bogus symb - return nothing
1615: return (undef,undef,undef);
1616: }
1617: #
1618: # Now just pick up the data we need
1619: my ($prev,$curr,$next);
1620: if ($curr_idx == 0) {
1621: $prev = undef;
1622: $curr = $Resource[$curr_idx ];
1623: $next = $Resource[$curr_idx+1];
1624: } elsif ($curr_idx == $#Resource) {
1625: $prev = $Resource[$curr_idx-1];
1626: $curr = $Resource[$curr_idx ];
1627: $next = undef;
1628: } else {
1629: $prev = $Resource[$curr_idx-1];
1630: $curr = $Resource[$curr_idx ];
1631: $next = $Resource[$curr_idx+1];
1632: }
1633: return ($prev,$curr,$next);
1634: }
1635:
1636: sub make_target_id {
1637: my ($target) = @_;
1638: my $id = &Apache::lonnet::escape($target->{'symb'}).':'.
1639: &Apache::lonnet::escape($target->{'part'}).':'.
1640: &Apache::lonnet::escape($target->{'respid'}).':'.
1641: &Apache::lonnet::escape($target->{'resptype'});
1642: return $id;
1643: }
1644:
1645: sub get_target_from_id {
1646: my ($id) = @_;
1647: my ($symb,$part,$respid,$resptype) = split(':',$id);
1648: return ({ symb =>&Apache::lonnet::unescape($symb),
1649: part =>&Apache::lonnet::unescape($part),
1650: respid =>&Apache::lonnet::unescape($respid),
1651: resptype =>&Apache::lonnet::unescape($resptype)});
1652: }
1.47 matthew 1653:
1654: #########################################################
1655: #########################################################
1656: ##
1657: ## Misc Option Response functions
1658: ##
1659: #########################################################
1660: #########################################################
1661: sub get_time_from_row {
1.42 matthew 1662: my ($row) = @_;
1663: if (ref($row)) {
1.47 matthew 1664: return $row->[&Apache::loncoursedata::RD_timestamp()];
1.42 matthew 1665: }
1666: return undef;
1667: }
1668:
1.47 matthew 1669: sub get_tries_from_row {
1.42 matthew 1670: my ($row) = @_;
1671: if (ref($row)) {
1.47 matthew 1672: return $row->[&Apache::loncoursedata::RD_tries()];
1.42 matthew 1673: }
1674: return undef;
1675: }
1676:
1.48 matthew 1677: sub hashify_attempt {
1678: my ($row) = @_;
1679: my %attempt;
1680: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1681: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1682: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1683: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1684: return %attempt;
1685: }
1686:
1.46 matthew 1687: sub Process_OR_Row {
1.42 matthew 1688: my ($row) = @_;
1689: my %RowData;
1.47 matthew 1690: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1691: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1692: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1693: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1694: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1695: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1.43 matthew 1696: return undef if ($award eq 'MISSING_ANSWER');
1.42 matthew 1697: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1698: $RowData{'_correct'} = 1;
1699: }
1700: $RowData{'_total'} = 1;
1701: my @Foilgrades = split('&',$grading);
1702: my @Foilsubs = split('&',$submission);
1703: for (my $j=0;$j<=$#Foilgrades;$j++) {
1704: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1.58 matthew 1705: $foilid = &Apache::lonnet::unescape($foilid);
1.42 matthew 1706: my (undef,$submission) = split('=',$Foilsubs[$j]);
1707: if ($correct) {
1708: $RowData{$foilid}->{'_correct'}++;
1709: } else {
1710: $submission = &Apache::lonnet::unescape($submission);
1711: $RowData{$foilid}->{$submission}++;
1712: }
1713: $RowData{$foilid}->{'_total'}++;
1714: }
1715: return %RowData;
1.1 stredwic 1716: }
1717:
1.39 matthew 1718: ##
1719: ## get problem data and put it into a useful data structure.
1720: ## note: we must force each foil and option to not begin or end with
1721: ## spaces as they are stored without such data.
1722: ##
1.48 matthew 1723: sub get_problem_data {
1.25 matthew 1724: my ($url) = @_;
1725: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 1726: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 1727: my %Answer;
1.23 matthew 1728: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 1729: my %Partdata;
1730: foreach my $part (@{$Answer{'parts'}}) {
1731: while (my($key,$value) = each(%Answer)) {
1732: next if ($key !~ /^$part/);
1733: $key =~ s/^$part\.//;
1734: if (ref($value) eq 'ARRAY') {
1735: if ($key eq 'options') {
1.48 matthew 1736: $Partdata{$part}->{'_Options'}=$value;
1.25 matthew 1737: } elsif ($key eq 'concepts') {
1.48 matthew 1738: $Partdata{$part}->{'_Concepts'}=$value;
1.25 matthew 1739: } elsif ($key =~ /^concept\.(.*)$/) {
1740: my $concept = $1;
1741: foreach my $foil (@$value) {
1.48 matthew 1742: $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
1.36 matthew 1743: $concept;
1.25 matthew 1744: }
1745: }
1746: } else {
1747: if ($key=~ /^foil\.text\.(.*)$/) {
1748: my $foil = $1;
1.48 matthew 1749: $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;
1.43 matthew 1750: $value =~ s/(\s*$|^\s*)//g;
1.48 matthew 1751: $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;
1.25 matthew 1752: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1753: my $foil = $1;
1.48 matthew 1754: $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;
1.25 matthew 1755: }
1.47 matthew 1756: }
1757: }
1758: }
1759: return %Partdata;
1760: }
1761:
1.23 matthew 1762: 1;
1.1 stredwic 1763:
1764: __END__
1.48 matthew 1765:
1766: #####
1767: # partdata{part}->{_Foils}->{foilid}->{'name'} = $
1768: # ->{'text'} = $
1769: # ->{'value'} = $
1770: # ->{'_Concept'} = $
1771: # partdata{part}->{_Options} = @
1772: # partdata{part}->{_Concepts} = @
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