Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.56
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.56 ! matthew 3: # $Id: lonproblemanalysis.pm,v 1.55 2004/01/16 15:35:04 matthew Exp $
1.1 stredwic 4: #
5: # Copyright Michigan State University Board of Trustees
6: #
7: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
8: #
9: # LON-CAPA is free software; you can redistribute it and/or modify
10: # it under the terms of the GNU General Public License as published by
11: # the Free Software Foundation; either version 2 of the License, or
12: # (at your option) any later version.
13: #
14: # LON-CAPA is distributed in the hope that it will be useful,
15: # but WITHOUT ANY WARRANTY; without even the implied warranty of
16: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: # GNU General Public License for more details.
18: #
19: # You should have received a copy of the GNU General Public License
20: # along with LON-CAPA; if not, write to the Free Software
21: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22: #
23: # /home/httpd/html/adm/gpl.txt
24: #
25: # http://www.lon-capa.org/
26: #
1.11 minaeibi 27: package Apache::lonproblemanalysis;
1.1 stredwic 28:
29: use strict;
30: use Apache::lonnet();
1.25 matthew 31: use Apache::loncommon();
1.7 stredwic 32: use Apache::lonhtmlcommon();
1.23 matthew 33: use Apache::loncoursedata();
34: use Apache::lonstatistics;
35: use Apache::lonlocal;
1.37 matthew 36: use HTML::Entities();
1.42 matthew 37: use Time::Local();
1.43 matthew 38: use Spreadsheet::WriteExcel();
1.2 stredwic 39:
1.40 matthew 40: my $plotcolors = ['#33ff00',
41: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
42: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
43: ];
1.39 matthew 44:
1.54 matthew 45: my @SubmitButtons = ({ name => 'PrevProblemAnalysis',
46: text => 'Previous Problem' },
47: { name => 'ProblemAnalysis',
1.46 matthew 48: text => 'Analyze Problem Again' },
1.54 matthew 49: { name => 'NextProblemAnalysis',
50: text => 'Next Problem' },
51: { name => 'break'},
1.46 matthew 52: { name => 'ClearCache',
53: text => 'Clear Caches' },
54: { name => 'updatecaches',
55: text => 'Update Student Data' },
56: { name => 'SelectAnother',
1.53 matthew 57: text => 'Choose a different Problem' },
1.46 matthew 58: { name => 'ExcelOutput',
59: text => 'Produce Excel Output' });
60:
61: sub render_resource {
62: my ($resource) = @_;
63: ##
64: ## Render the problem
65: my $base;
66: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
67: $base = "http://".$ENV{'SERVER_NAME'}.$base;
68: my $rendered_problem =
69: &Apache::lonnet::ssi_body($resource->{'src'});
70: $rendered_problem =~ s/<\s*form\s*/<nop /g;
71: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
72: return '<table bgcolor="ffffff"><tr><td>'.
73: '<base href="'.$base.'" />'.
74: $rendered_problem.
75: '</td></tr></table>';
76: }
77:
1.1 stredwic 78: sub BuildProblemAnalysisPage {
1.23 matthew 79: my ($r,$c)=@_;
1.49 matthew 80: #
81: my %Saveable_Parameters = ('Status' => 'scalar',
82: 'Section' => 'array',
83: 'NumPlots' => 'scalar',
84: 'AnalyzeAs' => 'scalar',
85: 'AnalyzeOver' => 'scalar',
86: );
87: &Apache::loncommon::store_course_settings('problem_analysis',
88: \%Saveable_Parameters);
89: &Apache::loncommon::restore_course_settings('problem_analysis',
90: \%Saveable_Parameters);
91: #
92: &Apache::lonstatistics::PrepareClasslist();
1.48 matthew 93: #
1.24 matthew 94: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
1.25 matthew 95: $r->print(&CreateInterface());
1.28 matthew 96: #
97: my @Students = @Apache::lonstatistics::Students;
98: #
1.46 matthew 99: if (@Students < 1) {
100: $r->print('<h2>There are no students in the sections selected</h2>');
101: }
102: #
103: &Apache::loncoursedata::clear_internal_caches();
1.41 matthew 104: if (exists($ENV{'form.ClearCache'}) ||
105: exists($ENV{'form.updatecaches'}) ||
1.33 matthew 106: (exists($ENV{'form.firstanalysis'}) &&
107: $ENV{'form.firstanalysis'} ne 'no')) {
108: &Apache::lonstatistics::Gather_Full_Student_Data($r);
109: }
110: if (! exists($ENV{'form.firstanalysis'})) {
111: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
112: } else {
113: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
114: }
1.39 matthew 115: $r->rflush();
1.46 matthew 116: #
1.33 matthew 117: if (exists($ENV{'form.problemchoice'}) &&
118: ! exists($ENV{'form.SelectAnother'})) {
1.46 matthew 119: foreach my $button (@SubmitButtons) {
1.54 matthew 120: if ($button->{'name'} eq 'break') {
121: $r->print("<br />\n");
122: } else {
123: $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
124: 'value="'.&mt($button->{'text'}).'" />');
125: $r->print(' 'x5);
126: }
1.46 matthew 127: }
1.31 matthew 128: #
1.25 matthew 129: $r->print('<hr />');
1.54 matthew 130: $r->rflush();
131: #
132: # Determine which problem we are to analyze
133: my $current_problem = &get_target_from_id($ENV{'form.problemchoice'});
134: #
135: my ($prev,$curr,$next) = &get_prev_curr_next($current_problem);
136: if (exists($ENV{'form.PrevProblemAnalysis'}) && defined($prev)) {
137: $current_problem = $prev;
138: } elsif (exists($ENV{'form.NextProblemAnalysis'}) && defined($next)) {
139: $current_problem = $next;
140: } else {
141: $current_problem = $curr;
142: }
1.23 matthew 143: #
1.54 matthew 144: # Store the current problem choice and send it out in the form
145: $ENV{'form.problemchoice'} = &make_target_id($current_problem);
146: $r->print('<input type="hidden" name="problemchoice" value="'.
147: $ENV{'form.problemchoice'}.'" />');
1.28 matthew 148: #
1.54 matthew 149: if (! defined($current_problem->{'resource'})) {
1.46 matthew 150: $r->print('resource is undefined');
151: } else {
1.54 matthew 152: my $resource = $current_problem->{'resource'};
1.44 matthew 153: $r->print('<h1>'.$resource->{'title'}.'</h1>');
1.41 matthew 154: $r->print('<h3>'.$resource->{'src'}.'</h3>');
1.47 matthew 155: $r->print(&render_resource($resource));
1.44 matthew 156: $r->rflush();
1.48 matthew 157: my %Data = &get_problem_data($resource->{'src'});
1.54 matthew 158: my $ProblemData = $Data{$current_problem->{'part'}.
159: '.'.
160: $current_problem->{'respid'}};
161: if ($current_problem->{'resptype'} eq 'option') {
1.56 ! matthew 162: &OptionResponseAnalysis($r,$current_problem,
1.54 matthew 163: $ProblemData,
1.47 matthew 164: \@Students);
1.54 matthew 165: } elsif ($current_problem->{'resptype'} eq 'radiobutton') {
1.56 ! matthew 166: &RadioResponseAnalysis($r,$current_problem,
1.54 matthew 167: $ProblemData,
1.47 matthew 168: \@Students);
169: } else {
170: $r->print('<h2>This analysis is not supported</h2>');
171: }
1.7 stredwic 172: }
1.23 matthew 173: $r->print('<hr />');
1.25 matthew 174: } else {
1.31 matthew 175: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
176: &mt('Analyze Problem').'" />');
177: $r->print(' 'x5);
1.27 matthew 178: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.46 matthew 179: $r->print(&ProblemSelector());
1.1 stredwic 180: }
181: }
182:
1.47 matthew 183:
184: #########################################################
185: #########################################################
186: ##
187: ## Radio Response Routines
188: ##
189: #########################################################
190: #########################################################
191: sub RadioResponseAnalysis {
1.56 ! matthew 192: my ($r,$problem,$ProblemData,$Students) = @_;
! 193: my ($resource,$respid) = ($problem->{'resource'},
! 194: $problem->{'respid'});
1.48 matthew 195: my $analysis_html;
1.47 matthew 196: my $PerformanceData =
197: &Apache::loncoursedata::get_response_data
1.48 matthew 198: ($Students,$resource->{'symb'},$respid);
199: if (! defined($PerformanceData) ||
200: ref($PerformanceData) ne 'ARRAY' ) {
201: $analysis_html = '<h2>'.
202: &mt('There is no submission data for this resource').
203: '</h2>';
204: $r->print($analysis_html);
1.47 matthew 205: return;
206: }
1.48 matthew 207: if (exists($ENV{'form.ExcelOutput'})) {
1.56 ! matthew 208: $analysis_html .= &RR_Excel_output($r,$problem->{'resource'},
! 209: $PerformanceData,$ProblemData);
1.48 matthew 210: } elsif ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.56 ! matthew 211: $analysis_html .= &RR_Tries_Analysis($r,$problem->{'resource'},
! 212: $PerformanceData,$ProblemData);
1.48 matthew 213: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.56 ! matthew 214: $analysis_html .= &RR_Time_Analysis($r,$problem->{'resource'},
! 215: $PerformanceData,$ProblemData);
1.48 matthew 216: } else {
217: $analysis_html .= '<h2>'.
218: &mt('The analysis you have selected is not supported at this time').
219: '</h2>';
220: }
221: $r->print($analysis_html);
222: }
223:
224: sub RR_Excel_output {
225: my ($r,$PerformanceData,$ProblemData) = @_;
226: return '<h1>No!</h1>';
227: }
228:
229: sub RR_Tries_Analysis {
230: my ($r,$resource,$PerformanceData,$ProblemData) = @_;
231: my $analysis_html;
232: my $mintries = 1;
233: my $maxtries = $ENV{'form.NumPlots'};
234: my ($table,$Foils,$Concepts) = &build_foil_index($ProblemData);
235: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
236: $table = '<h3>'.
237: &mt('Not enough data for concept analysis. '.
238: 'Performing Foil Analysis').
239: '</h3>'.$table;
240: $ENV{'form.AnalyzeAs'} = 'Foils';
241: }
242: $analysis_html .= $table;
243: my @TryData = &RR_tries_data_analysis($r,$PerformanceData);
1.56 ! matthew 244: # if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
! 245: $analysis_html .= &RR_Tries_Foil_Analysis($mintries,$maxtries,$Foils,
1.48 matthew 246: \@TryData,$ProblemData);
1.56 ! matthew 247: # } else {
! 248: # $analysis_html = &RR_Tries_Concept_Analysis($mintries,$maxtries,
! 249: # $Concepts,
! 250: # \@TryData,
! 251: # $ProblemData);
! 252: # }
1.48 matthew 253: return $analysis_html;
254: }
255:
256: sub RR_tries_data_analysis {
257: my ($r,$Attempt_data) = @_;
258: my @TryData;
259: foreach my $attempt (@$Attempt_data) {
260: my %Attempt = &hashify_attempt($attempt);
261: my ($answer,undef) = split('=',$Attempt{'submission'});
262: $TryData[$Attempt{'tries'}]->{$answer}++;
263: }
264: return @TryData;
265: }
266:
267: sub RR_Time_Analysis {
268: my ($r,$PerformanceData,$ProblemData) = @_;
269: my $html;
270: return $html;
271: }
272:
273: sub RR_Tries_Foil_Analysis {
274: my ($min,$max,$Foils,$TryData,$ProblemData) = @_;
275: my $html;
276: #
277: # Compute the data neccessary to make the plots
278: for (my $try=$min;$try<=$max;$try++) {
279: my @PlotData_Correct;
280: my @PlotData_Incorrect;
281: next if ($try > scalar(@{$TryData}));
1.56 ! matthew 282: next if (! defined($TryData->[$try]));
! 283: my %DataSet = %{$TryData->[$try]};
1.48 matthew 284: my $total = 0;
285: foreach my $foilid (@$Foils) {
286: $total += $DataSet{$foilid};
287: }
288: foreach my $foilid (@$Foils) {
289: if ($total == 0) {
290: push (@PlotData_Correct,0);
291: push (@PlotData_Incorrect,0);
292: } else {
293: if ($ProblemData->{'_Foils'}->{$foilid}->{'value'} eq 'true') {
294: push (@PlotData_Correct,
295: int(100*$DataSet{$foilid}/$total));
296: push (@PlotData_Incorrect,0);
297: } else {
298: push (@PlotData_Correct,0);
299: push (@PlotData_Incorrect,
300: int(100*$DataSet{$foilid}/$total));
301: }
302: }
303: }
304: my $title='Attempt '.$try;
305: my $xlabel = $total.' Submissions';
306: $html.= &Apache::loncommon::DrawBarGraph($title,
307: $xlabel,
308: 'Percent Choosing',
309: 100,
310: ['#33ff00','#ff3300'],
311: \@PlotData_Correct,
312: \@PlotData_Incorrect);
313: }
314: return $html;
315: }
316:
317: sub RR_Tries_Concept_Analysis {
318: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
319: my $html;
320: return $html;
321: }
322:
323: sub RR_Time_Foil_Analysis {
324: my ($min,$max,$Foils,$ResponseData,$ProblemData) = @_;
325: my $html;
326: return $html;
327: }
328:
329: sub RR_Time_Concept_Analysis {
330: my ($min,$max,$Concepts,$ResponseData,$ProblemData) = @_;
331: my $html;
332: return $html;
333: }
334:
335:
336: sub get_Radio_problem_data {
337: my ($url) = @_;
338: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
339: (my $garbage,$Answ)=split('_HASH_REF__',$Answ,2);
340: my %Answer = &Apache::lonnet::str2hash($Answ);
341: my %Partdata;
342: foreach my $part (@{$Answer{'parts'}}) {
343: while (my($key,$value) = each(%Answer)) {
344: # if (ref($value) eq 'ARRAY') {
345: # &Apache::lonnet::logthis('is ref part:'.$part.' '.$key.'='.join(',',@$value));
346: # } else {
347: # &Apache::lonnet::logthis('notref part:'.$part.' '.$key.'='.$value);
348: # }
349: next if ($key !~ /^$part/);
350: $key =~ s/^$part\.//;
351: if ($key eq 'foils') {
352: $Partdata{$part}->{'_Foils'}=$value;
353: } elsif ($key eq 'options') {
354: $Partdata{$part}->{'_Options'}=$value;
355: } elsif ($key eq 'shown') {
356: $Partdata{$part}->{'_Shown'}=$value;
357: } elsif ($key =~ /^foil.value.(.*)$/) {
358: $Partdata{$part}->{$1}->{'value'}=$value;
359: } elsif ($key =~ /^foil.text.(.*)$/) {
360: $Partdata{$part}->{$1}->{'text'}=$value;
361: }
362: }
363: }
364: return %Partdata;
1.47 matthew 365: }
1.48 matthew 366:
1.33 matthew 367: #########################################################
368: #########################################################
369: ##
1.46 matthew 370: ## Option Response Routines
1.33 matthew 371: ##
372: #########################################################
373: #########################################################
1.46 matthew 374: sub OptionResponseAnalysis {
1.56 ! matthew 375: my ($r,$problem,$ProblemData,$Students) = @_;
! 376: my ($resource,$respid) = ($problem->{'resource'},
! 377: $problem->{'respid'});
! 378: # Note: part data is not needed.
1.46 matthew 379: my $PerformanceData =
1.47 matthew 380: &Apache::loncoursedata::get_response_data
1.54 matthew 381: ($Students,$resource->{'symb'},$respid);
1.46 matthew 382: if (! defined($PerformanceData) ||
383: ref($PerformanceData) ne 'ARRAY' ) {
384: $r->print('<h2>'.
385: &mt('There is no student data for this problem.').
386: '</h2>');
387: } else {
388: $r->rflush();
389: if (exists($ENV{'form.ExcelOutput'})) {
390: my $result = &prepare_optionresponse_excel_sheet($r,$resource,
391: $PerformanceData,
392: $ProblemData);
393: $r->print($result);
394: $r->rflush();
1.39 matthew 395: } else {
1.46 matthew 396: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
397: my $analysis_html = &tries_analysis($r,
398: $PerformanceData,
399: $ProblemData);
400: $r->print($analysis_html);
401: $r->rflush();
402: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
403: my $analysis_html = &time_analysis($PerformanceData,
404: $ProblemData);
405: $r->print($analysis_html);
406: $r->rflush();
1.39 matthew 407: } else {
1.46 matthew 408: $r->print('<h2>'.
409: &mt('The analysis you have selected is '.
410: 'not supported at this time').
411: '</h2>');
412: }
1.36 matthew 413: }
1.39 matthew 414: }
415: }
416:
1.33 matthew 417: #########################################################
1.46 matthew 418: #
419: # Option Response: Tries Analysis
420: #
1.33 matthew 421: #########################################################
422: sub tries_analysis {
1.43 matthew 423: my ($r,$PerformanceData,$ORdata) = @_;
1.33 matthew 424: my $mintries = 1;
425: my $maxtries = $ENV{'form.NumPlots'};
1.39 matthew 426: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
427: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
428: $table = '<h3>'.
429: &mt('Not enough data for concept analysis. '.
430: 'Performing Foil Analysis').
431: '</h3>'.$table;
432: $ENV{'form.AnalyzeAs'} = 'Foils';
433: }
1.43 matthew 434: my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData,
1.36 matthew 435: $mintries,$maxtries);
1.42 matthew 436: my $analysis = '';
437: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
438: $analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils,
439: \%ResponseData,$ORdata);
440: } else {
441: $analysis = &Tries_Concept_Analysis($mintries,$maxtries,
442: $Concepts,\%ResponseData,$ORdata);
443: }
444: $table .= $analysis;
445: return $table;
446: }
447:
448: sub Tries_Foil_Analysis {
449: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
450: my %ResponseData = %$respdat;
1.31 matthew 451: #
452: # Compute the data neccessary to make the plots
1.42 matthew 453: my @PlotData;
454: foreach my $foilid (@$Foils) {
455: for (my $i=$mintries;$i<=$maxtries;$i++) {
456: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
457: push(@{$PlotData[$i]->{'_correct'}},0);
458: } else {
459: push(@{$PlotData[$i]->{'_correct'}},
460: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
461: $ResponseData{$foilid}->[$i]->{'_total'});
462: }
1.48 matthew 463: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 464: push(@{$PlotData[$i]->{'_total'}},
465: $ResponseData{$foilid}->[$i]->{'_total'});
466: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
467: push (@{$PlotData[$i]->{$option}},0);
468: } else {
469: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
470: $ResponseData{$foilid}->[$i]->{'_correct'}) {
471: push(@{$PlotData[$i]->{$option}},0);
1.39 matthew 472: } else {
473: push (@{$PlotData[$i]->{$option}},
474: 100 * $ResponseData{$foilid}->[$i]->{$option} /
1.42 matthew 475: ($ResponseData{$foilid}->[$i]->{'_total'} -
476: $ResponseData{$foilid}->[$i]->{'_correct'}));
1.39 matthew 477: }
1.36 matthew 478: }
479: }
480: }
1.42 matthew 481: }
482: #
483: # Build a table for the plots
484: my $analysis_html = "<table>\n";
485: my $foilkey = &build_option_index($ORdata);
486: for (my $i=$mintries;$i<=$maxtries;$i++) {
487: my $count = $ResponseData{'_total'}->[$i];
488: if ($count == 0) {
489: $count = 'no submissions';
490: } elsif ($count == 1) {
491: $count = '1 submission';
492: } else {
493: $count = $count.' submissions';
494: }
495: my $title = 'Attempt '.$i.', '.$count;
496: my @Datasets;
1.48 matthew 497: foreach my $option ('_correct',@{$ORdata->{'_Options'}}) {
1.42 matthew 498: next if (! exists($PlotData[$i]->{$option}));
499: push(@Datasets,$PlotData[$i]->{$option});
500: }
1.46 matthew 501: my $correctgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 502: ($title,'Foil Number','Percent Correct',
503: 100,$plotcolors,$Datasets[0]);
504: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
505: ##
506: ##
507: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
508: $Datasets[0]->[$i]=0;
509: }
510: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
511: if ($count == 0) {
512: $count = 'no submissions';
513: } elsif ($count == 1) {
514: $count = '1 submission';
515: } else {
516: $count = $count.' submissions';
517: }
518: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 519: my $incorrectgraph = &Apache::loncommon::DrawBarGraph
1.42 matthew 520: ($title,'Foil Number','% Option Chosen Incorrectly',
521: 100,$plotcolors,@Datasets);
522: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
523: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
524: }
525: $analysis_html .= "</table>\n";
526: return $analysis_html;
527: }
528:
529: sub Tries_Concept_Analysis {
530: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
531: my %ResponseData = %$respdat;
532: my $analysis_html = "<table>\n";
533: #
534: # Compute the data neccessary to make the plots
535: my @PlotData;
536: # Concept analysis
537: #
538: # Note: we do not bother with characterizing the students incorrect
539: # answers at the concept level because an incorrect answer for one foil
540: # may be a correct answer for another foil.
541: my %ConceptData;
542: foreach my $concept (@{$Concepts}) {
543: for (my $i=$mintries;$i<=$maxtries;$i++) {
544: #
545: # Gather the per-attempt data
546: my $cdata = $ConceptData{$concept}->[$i];
547: foreach my $foilid (@{$concept->{'foils'}}) {
548: $cdata->{'_correct'} +=
549: $ResponseData{$foilid}->[$i]->{'_correct'};
550: $cdata->{'_total'} +=
551: $ResponseData{$foilid}->[$i]->{'_total'};
552: }
553: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
554: if ($cdata->{'_total'} == 0) {
555: push (@{$PlotData[$i]->{'_correct'}},0);
556: } else {
557: push (@{$PlotData[$i]->{'_correct'}},
558: 100*$cdata->{'_correct'}/$cdata->{'_total'});
1.36 matthew 559: }
1.25 matthew 560: }
1.42 matthew 561: }
1.31 matthew 562: # Build a table for the plots
1.25 matthew 563: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.39 matthew 564: my $minstu = $PlotData[$i]->{'_total'}->[0];
565: my $maxstu = $PlotData[$i]->{'_total'}->[0];
566: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
1.36 matthew 567: if ($minstu > $count) {
568: $minstu = $count;
1.27 matthew 569: }
1.36 matthew 570: if ($maxstu < $count) {
571: $maxstu = $count;
1.27 matthew 572: }
573: }
1.39 matthew 574: $maxstu = 0 if (! defined($maxstu));
575: $minstu = 0 if (! defined($minstu));
1.35 matthew 576: my $title;
1.42 matthew 577: my $count = $ResponseData{'_total'}->[$i];
578: if ($count == 0) {
579: $count = 'no submissions';
580: } elsif ($count == 1) {
581: $count = '1 submission';
1.27 matthew 582: } else {
1.42 matthew 583: $count = $count.' submissions';
1.39 matthew 584: }
1.42 matthew 585: $title = 'Attempt '.$i.', '.$count;
1.46 matthew 586: my $graphlink = &Apache::loncommon::DrawBarGraph
1.42 matthew 587: ($title,'Concept Number','Percent Correct',
588: 100,$plotcolors,$PlotData[$i]->{'_correct'});
589: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
1.25 matthew 590: }
1.42 matthew 591: $analysis_html .= "</table>\n";
592: return $analysis_html;
1.25 matthew 593: }
594:
595: sub analyze_option_data_by_tries {
1.43 matthew 596: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 597: my %Trydata;
598: $mintries = 1 if (! defined($mintries) || $mintries < 1);
599: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 600: foreach my $row (@$PerformanceData) {
601: next if (! defined($row));
1.47 matthew 602: my $tries = &get_tries_from_row($row);
1.46 matthew 603: my %Row = &Process_OR_Row($row);
1.43 matthew 604: next if (! %Row);
1.42 matthew 605: while (my ($foilid,$href) = each(%Row)) {
606: if (! ref($href)) {
607: $Trydata{$foilid}->[$tries] += $href;
608: next;
609: }
610: while (my ($option,$value) = each(%$href)) {
611: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1.25 matthew 612: }
613: }
614: }
615: return %Trydata;
616: }
617:
1.33 matthew 618: #########################################################
1.46 matthew 619: #
620: # Option Response: Time Analysis
621: #
1.33 matthew 622: #########################################################
623: sub time_analysis {
624: my ($PerformanceData,$ORdata) = @_;
1.42 matthew 625: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
626: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
627: $table = '<h3>'.
628: &mt('Not enough data for concept analysis. '.
629: 'Performing Foil Analysis').
630: '</h3>'.$table;
631: $ENV{'form.AnalyzeAs'} = 'Foils';
632: }
1.33 matthew 633: my $num_plots = $ENV{'form.NumPlots'};
634: my $num_data = scalar(@$PerformanceData)-1;
635: my $percent = sprintf('%2f',100/$num_plots);
1.42 matthew 636: #
1.37 matthew 637: $table .= "<table>\n";
1.33 matthew 638: for (my $i=0;$i<$num_plots;$i++) {
1.42 matthew 639: ##
1.34 matthew 640: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
641: ('startdate_'.$i);
642: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
643: ('enddate_'.$i);
644: if (! defined($starttime) || ! defined($endtime)) {
1.42 matthew 645: my $sec_in_day = 86400;
1.47 matthew 646: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
1.42 matthew 647: my ($sday,$smon,$syear);
648: (undef,undef,undef,$sday,$smon,$syear) =
649: localtime($last_sub_time - $sec_in_day*$i);
650: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
651: $endtime = $starttime + $sec_in_day;
652: if ($i == ($num_plots -1 )) {
1.47 matthew 653: $starttime = &get_time_from_row($PerformanceData->[0]);
1.42 matthew 654: }
655: }
1.34 matthew 656: my $startdateform = &Apache::lonhtmlcommon::date_setter
657: ('Statistics','startdate_'.$i,$starttime);
658: my $enddateform = &Apache::lonhtmlcommon::date_setter
659: ('Statistics','enddate_'.$i,$endtime);
1.42 matthew 660: #
661: my $begin_index;
662: my $end_index;
663: my $j;
664: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 665: last if (&get_time_from_row($PerformanceData->[$j])
1.46 matthew 666: > $starttime);
1.42 matthew 667: }
668: $begin_index = $j;
669: while (++$j < scalar(@$PerformanceData)) {
1.47 matthew 670: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
1.42 matthew 671: }
672: $end_index = $j;
673: ##
674: my $interval = {
675: begin_index => $begin_index,
676: end_index => $end_index,
677: startdateform => $startdateform,
678: enddateform => $enddateform,
679: };
680: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
681: $table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
682: $interval);
683: } else {
684: $table .= &Concept_Time_Analysis($PerformanceData,$ORdata,
685: $Concepts,$interval);
686: }
1.33 matthew 687: }
1.42 matthew 688: #
1.33 matthew 689: return $table;
690: }
691:
1.42 matthew 692: sub Foil_Time_Analysis {
693: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
694: my $analysis_html;
695: my $foilkey = &build_option_index($ORdata);
696: my ($begin_index,$end_index) = ($interval->{'begin_index'},
697: $interval->{'end_index'});
1.33 matthew 698: my %TimeData;
699: #
700: # Compute the number getting the foils correct or incorrects
1.42 matthew 701: for (my $j=$begin_index;$j<=$end_index;$j++) {
702: my $row = $PerformanceData->[$j];
1.33 matthew 703: next if (! defined($row));
1.46 matthew 704: my %Row = &Process_OR_Row($row);
1.42 matthew 705: while (my ($foilid,$href) = each(%Row)) {
706: if (! ref($href)) {
707: $TimeData{$foilid} += $href;
708: next;
709: }
710: while (my ($option,$value) = each(%$href)) {
711: $TimeData{$foilid}->{$option}+=$value;
1.33 matthew 712: }
713: }
714: }
1.39 matthew 715: my @Plotdata;
1.42 matthew 716: foreach my $foil (@$Foils) {
717: my $total = $TimeData{$foil}->{'_total'};
718: if ($total == 0) {
719: push(@{$Plotdata[0]},0);
720: } else {
721: push(@{$Plotdata[0]},
722: 100 * $TimeData{$foil}->{'_correct'} / $total);
723: }
724: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
725: my $optionidx = 1;
1.48 matthew 726: foreach my $option (@{$ORdata->{'_Options'}}) {
1.42 matthew 727: if ($total_incorrect == 0) {
728: push(@{$Plotdata[$optionidx]},0);
729: } else {
730: push(@{$Plotdata[$optionidx]},
731: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
1.37 matthew 732: }
1.42 matthew 733: } continue {
734: $optionidx++;
1.39 matthew 735: }
1.42 matthew 736: }
737: #
738: # Create the plot
739: my $count = $end_index-$begin_index;
740: my $title;
741: if ($count == 0) {
742: $title = 'no submissions';
743: } elsif ($count == 1) {
744: $title = 'one submission';
1.39 matthew 745: } else {
1.42 matthew 746: $title = $count.' submissions';
747: }
1.46 matthew 748: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
749: 'Foil Number',
750: 'Percent Correct',
751: 100,
752: $plotcolors,
753: $Plotdata[0]);
1.42 matthew 754: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
755: $Plotdata[0]->[$j]=0;
756: }
757: $count = $end_index-$begin_index-$TimeData{'_correct'};
758: if ($count == 0) {
759: $title = 'no submissions';
760: } elsif ($count == 1) {
761: $title = 'one submission';
762: } else {
763: $title = $count.' submissions';
764: }
1.46 matthew 765: my $incorrectplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 766: 'Foil Number',
767: 'Incorrect Option Choice',
768: 100,
769: $plotcolors,
770: @Plotdata);
771: $analysis_html.='<tr>'.
772: '<td>'.$correctplot.'</td>'.
773: '<td>'.$incorrectplot.'</td>'.
774: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
775: $analysis_html.= '<tr>'.'<td colspan="3">'.
776: '<b>Start Time</b>:'.
777: ' '.$interval->{'startdateform'}.'<br />'.
778: '<b>End Time</b> : '.
779: ' '.$interval->{'enddateform'}.'<br />'.
780: # '<b>Plot Title</b> :'.
781: # (" "x3).$interval->{'titleform'}.
782: '</td>'.
783: "</tr>\n";
784: return $analysis_html;
785: }
786:
787: sub Concept_Time_Analysis {
788: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
789: my $analysis_html;
790: ##
791: ## Determine starttime, endtime, startindex, endindex
792: my ($begin_index,$end_index) = ($interval->{'begin_index'},
793: $interval->{'end_index'});
794: my %TimeData;
795: #
796: # Compute the number getting the foils correct or incorrects
797: for (my $j=$begin_index;$j<=$end_index;$j++) {
798: my $row = $PerformanceData->[$j];
799: next if (! defined($row));
1.46 matthew 800: my %Row = &Process_OR_Row($row);
1.42 matthew 801: while (my ($foilid,$href) = each(%Row)) {
802: if (! ref($href)) {
803: $TimeData{$foilid} += $href;
804: next;
1.37 matthew 805: }
1.42 matthew 806: while (my ($option,$value) = each(%$href)) {
807: $TimeData{$foilid}->{$option}+=$value;
1.37 matthew 808: }
1.33 matthew 809: }
810: }
811: #
1.42 matthew 812: # Put the data in plottable form
813: my @Plotdata;
814: foreach my $concept (@$Concepts) {
815: my ($total,$correct);
816: foreach my $foil (@{$concept->{'foils'}}) {
817: $total += $TimeData{$foil}->{'_total'};
818: $correct += $TimeData{$foil}->{'_correct'};
819: }
820: if ($total == 0) {
821: push(@Plotdata,0);
822: } else {
823: push(@Plotdata,100 * $correct / $total);
824: }
825: }
826: #
1.33 matthew 827: # Create the plot
1.42 matthew 828: my $title = ($end_index - $begin_index).' submissions';
1.46 matthew 829: my $correctplot = &Apache::loncommon::DrawBarGraph($title,
1.42 matthew 830: 'Concept Number',
831: 'Percent Correct',
832: 100,
833: $plotcolors,
834: \@Plotdata);
835: $analysis_html.='<tr>'.
836: '<td>'.$correctplot.'</td>'.
837: '<td align="left" valign="top">'.
838: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
839: '<b>End Time</b> : '.
840: ' '.$interval->{'enddateform'}.'<br />'.
841: # '<b>Plot Title</b> :'.(" "x3).
842: # $interval->{'titleform'}.
843: '</td>'.
844: "</tr>\n";
845: return $analysis_html;
846: }
847:
848: #########################################################
849: #########################################################
850: ##
851: ## Excel output
852: ##
853: #########################################################
854: #########################################################
1.46 matthew 855: sub prepare_optionresponse_excel_sheet {
1.43 matthew 856: my ($r,$resource,$PerformanceData,$ORdata) = @_;
1.44 matthew 857: my $response = '';
1.42 matthew 858: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1.43 matthew 859: #
860: # Create excel worksheet
861: my $filename = '/prtspool/'.
862: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
863: time.'_'.rand(1000000000).'.xls';
864: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
865: if (! defined($workbook)) {
866: $r->log_error("Error creating excel spreadsheet $filename: $!");
867: $r->print('<p>'.&mt("Unable to create new Excel file. ".
868: "This error has been logged. ".
869: "Please alert your LON-CAPA administrator").
870: '</p>');
871: return undef;
872: }
873: #
874: $workbook->set_tempdir('/home/httpd/perl/tmp');
875: #
876: # Define some potentially useful formats
877: my $format;
878: $format->{'header'} = $workbook->add_format(bold => 1,
879: bottom => 1,
880: align => 'center');
881: $format->{'bold'} = $workbook->add_format(bold=>1);
882: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
883: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
884: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
885: $format->{'date'} = $workbook->add_format(num_format=>
886: 'mmm d yyyy hh:mm AM/PM');
887: #
888: # Create and populate main worksheets
889: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
890: my $student_data_sheet = $workbook->addworksheet('Student Data');
891: my $response_data_sheet = $workbook->addworksheet('Response Data');
892: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
893: $response_data_sheet) {
894: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
895: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
896: }
897: #
898: my $result;
899: $result = &build_problem_data_worksheet($problem_data_sheet,$format,
900: $Concepts,$ORdata);
901: if ($result ne 'okay') {
902: # Do something useful
903: }
904: $result = &build_student_data_worksheet($student_data_sheet,$format);
905: if ($result ne 'okay') {
906: # Do something useful
907: }
908: $result = &build_response_data_worksheet($response_data_sheet,$format,
909: $PerformanceData,$Foils,
910: $ORdata);
911: if ($result ne 'okay') {
912: # Do something useful
913: }
1.44 matthew 914: $response_data_sheet->activate();
1.43 matthew 915: #
916: # Close the excel file
917: $workbook->close();
918: #
919: # Write a link to allow them to download it
1.44 matthew 920: $result .= '<h2>'.&mt('Excel Raw Data Output').'</h2>'.
921: '<p><a href="'.$filename.'">'.
922: &mt('Your Excel spreadsheet.').
923: '</a></p>'."\n";
1.43 matthew 924: return $result;
925: }
926:
927: sub build_problem_data_worksheet {
928: my ($worksheet,$format,$Concepts,$ORdata) = @_;
929: my $rows_output = 3;
930: my $cols_output = 0;
931: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
932: ##
933: ##
934: my @Headers;
935: if (@$Concepts > 1) {
936: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
937: 'Foil Name','Foil Text','Correct value');
938: } else {
939: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
940: }
941: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1.48 matthew 942: my %Foildata = %{$ORdata->{'_Foils'}};
1.43 matthew 943: my $conceptindex = 1;
944: my $foilindex = 1;
945: foreach my $concept (@$Concepts) {
946: my @FoilsInConcept = @{$concept->{'foils'}};
947: my $firstfoil = shift(@FoilsInConcept);
948: if (@$Concepts > 1) {
949: $worksheet->write_row($rows_output++,0,
950: [$conceptindex,
951: $concept->{'name'},
952: $foilindex++,
953: $Foildata{$firstfoil}->{'name'},
954: $Foildata{$firstfoil}->{'text'},
955: $Foildata{$firstfoil}->{'value'},]);
956: } else {
957: $worksheet->write_row($rows_output++,0,
958: [ $foilindex++,
959: $Foildata{$firstfoil}->{'name'},
960: $Foildata{$firstfoil}->{'text'},
961: $Foildata{$firstfoil}->{'value'},]);
962: }
963: foreach my $foilid (@FoilsInConcept) {
964: if (@$Concepts > 1) {
965: $worksheet->write_row($rows_output++,0,
966: ['',
967: '',
968: $foilindex,
969: $Foildata{$foilid}->{'name'},
970: $Foildata{$foilid}->{'text'},
971: $Foildata{$foilid}->{'value'},]);
972: } else {
973: $worksheet->write_row($rows_output++,0,
974: [$foilindex,
975: $Foildata{$foilid}->{'name'},
976: $Foildata{$foilid}->{'text'},
977: $Foildata{$foilid}->{'value'},]);
978: }
979: } continue {
980: $foilindex++;
981: }
982: } continue {
983: $conceptindex++;
984: }
985: $rows_output++;
986: $rows_output++;
987: ##
988: ## Option data output
989: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
1.48 matthew 990: foreach my $string (@{$ORdata->{'_Options'}}) {
1.43 matthew 991: $worksheet->write($rows_output++,0,$string);
992: }
993: return 'okay';
994: }
995:
996: sub build_student_data_worksheet {
997: my ($worksheet,$format) = @_;
998: my $rows_output = 3;
999: my $cols_output = 0;
1000: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
1001: my @Headers = ('full name','username','domain','section',
1002: "student\nnumber",'identifier');
1003: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1004: my @Students = @Apache::lonstatistics::Students;
1005: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
1006: my %ids;
1007: foreach my $row (@$studentrows) {
1008: my ($mysqlid,$student) = @$row;
1009: $ids{$student}=$mysqlid;
1010: }
1011: foreach my $student (@Students) {
1012: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
1013: $worksheet->write_row($rows_output++,0,
1014: [$student->{'fullname'},
1015: $student->{'username'},$student->{'domain'},
1016: $student->{'section'},$student->{'id'},
1017: $ids{$name_domain}]);
1018: }
1019: return;
1020: }
1021:
1022: sub build_response_data_worksheet {
1023: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
1024: my $rows_output = 3;
1025: my $cols_output = 0;
1026: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
1027: $worksheet->set_column(1,1,20);
1028: $worksheet->set_column(2,2,13);
1029: my @Headers = ('identifier','time','award detail','attempt');
1030: foreach my $foil (@$Foils) {
1031: push (@Headers,$foil.' submission');
1032: push (@Headers,$foil.' grading');
1033: }
1034: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
1035: #
1036: foreach my $row (@$PerformanceData) {
1037: next if (! defined($row));
1038: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
1039: my @Foilgrades = split('&',$grading);
1040: my @Foilsubs = split('&',$submission);
1041: my %ResponseData;
1042: for (my $j=0;$j<=$#Foilgrades;$j++) {
1043: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1044: my (undef,$submission) = split('=',$Foilsubs[$j]);
1045: $submission = &Apache::lonnet::unescape($submission);
1046: $ResponseData{$foilid.' submission'}=$submission;
1047: $ResponseData{$foilid.' award'}=$correct;
1048: }
1049: $worksheet->write($rows_output,$cols_output++,$student);
1050: $worksheet->write($rows_output,$cols_output++,
1051: &calc_serial($time),$format->{'date'});
1052: $worksheet->write($rows_output,$cols_output++,$award);
1053: $worksheet->write($rows_output,$cols_output++,$tries);
1054: foreach my $foilid (@$Foils) {
1055: $worksheet->write($rows_output,$cols_output++,
1056: $ResponseData{$foilid.' submission'});
1057: $worksheet->write($rows_output,$cols_output++,
1058: $ResponseData{$foilid.' award'});
1059: }
1060: $rows_output++;
1061: $cols_output = 0;
1062: }
1063: return;
1.42 matthew 1064: }
1065:
1.43 matthew 1066:
1067: ##
1068: ## The following is copied from datecalc1.pl, part of the
1069: ## Spreadsheet::WriteExcel CPAN module.
1070: ##
1071: ##
1072: ######################################################################
1073: #
1074: # Demonstration of writing date/time cells to Excel spreadsheets,
1075: # using UNIX/Perl time as source of date/time.
1076: #
1077: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
1078: #
1079: ######################################################################
1080: #
1081: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
1082: # measured in seconds.
1083: #
1084: # An Excel file can use exactly one of two different date/time systems.
1085: # In these systems, a floating point number represents the number of days
1086: # (and fractional parts of the day) since a start point. The floating point
1087: # number is referred to as a 'serial'.
1088: # The two systems ('1900' and '1904') use different starting points:
1089: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
1090: # a leap year - see:
1091: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
1092: # for the excuse^H^H^H^H^H^Hreason.
1093: # '1904'; '1.00' is 2 Jan 1904.
1094: #
1095: # The '1904' system is the default for Apple Macs. Windows versions of
1096: # Excel have the option to use the '1904' system.
1097: #
1098: # Note that Visual Basic's "DateSerial" function does NOT erroneously
1099: # regard 1900 as a leap year, and thus its serials do not agree with
1100: # the 1900 serials of Excel for dates before 1 Mar 1900.
1101: #
1102: # Note that StarOffice (at least at version 5.2) does NOT erroneously
1103: # regard 1900 as a leap year, and thus its serials do not agree with
1104: # the 1900 serials of Excel for dates before 1 Mar 1900.
1105: #
1106: ######################################################################
1107: #
1108: # Calculation description
1109: # =======================
1110: #
1111: # 1900 system
1112: # -----------
1113: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
1114: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1115: # were leap years with an extra day.
1116: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
1117: # 1 Jan 1970.
1118: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
1119: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
1120: #
1121: # 1904 system
1122: # -----------
1123: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
1124: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
1125: # were leap years with an extra day.
1126: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
1127: # 1 Jan 1970.
1128: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
1129: #
1130: ######################################################################
1131: #
1132: # Copyright (c) 2000, Andrew Benham.
1133: # This program is free software. It may be used, redistributed and/or
1134: # modified under the same terms as Perl itself.
1135: #
1136: # Andrew Benham, adsb@bigfoot.com
1137: # London, United Kingdom
1138: # 11 Nov 2000
1139: #
1140: ######################################################################
1141:
1142: # Use 1900 date system on all platforms other than Apple Mac (for which
1143: # use 1904 date system).
1144: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
1145:
1146: #-----------------------------------------------------------
1147: # calc_serial()
1148: #
1149: # Called with (up to) 2 parameters.
1150: # 1. Unix timestamp. If omitted, uses current time.
1151: # 2. GMT flag. Set to '1' to return serial in GMT.
1152: # If omitted, returns serial in appropriate timezone.
1153: #
1154: # Returns date/time serial according to $DATE_SYSTEM selected
1155: #-----------------------------------------------------------
1156: sub calc_serial {
1157: my $time = (defined $_[0]) ? $_[0] : time();
1158: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
1159:
1160: # Divide timestamp by number of seconds in a day.
1161: # This gives a date serial with '0' on 1 Jan 1970.
1162: my $serial = $time / 86400;
1163:
1164: # Adjust the date serial by the offset appropriate to the
1165: # currently selected system (1900/1904).
1166: if ($DATE_SYSTEM == 0) { # use 1900 system
1167: $serial += 25569;
1168: } else { # use 1904 system
1169: $serial += 24107;
1170: }
1171:
1172: unless ($gmtflag) {
1173: # Now have a 'raw' serial with the right offset. But this
1174: # gives a serial in GMT, which is false unless the timezone
1175: # is GMT. We need to adjust the serial by the appropriate
1176: # timezone offset.
1177: # Calculate the appropriate timezone offset by seeing what
1178: # the differences between localtime and gmtime for the given
1179: # time are.
1180:
1181: my @gmtime = gmtime($time);
1182: my @ltime = localtime($time);
1183:
1184: # For the first 7 elements of the two arrays, adjust the
1185: # date serial where the elements differ.
1186: for (0 .. 6) {
1187: my $diff = $ltime[$_] - $gmtime[$_];
1188: if ($diff) {
1189: $serial += _adjustment($diff,$_);
1190: }
1191: }
1192: }
1193:
1194: # Perpetuate the error that 1900 was a leap year by decrementing
1195: # the serial if we're using the 1900 system and the date is prior to
1196: # 1 Mar 1900. This has the effect of making serial value '60'
1197: # 29 Feb 1900.
1198:
1199: # This fix only has any effect if UNIX/Perl time on the platform
1200: # can represent 1900. Many can't.
1201:
1202: unless ($DATE_SYSTEM) {
1203: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
1204: }
1205: return $serial;
1206: }
1207:
1208: sub _adjustment {
1209: # Based on the difference in the localtime/gmtime array elements
1210: # number, return the adjustment required to the serial.
1211:
1212: # We only look at some elements of the localtime/gmtime arrays:
1213: # seconds unlikely to be different as all known timezones
1214: # have an offset of integral multiples of 15 minutes,
1215: # but it's easy to do.
1216: # minutes will be different for timezone offsets which are
1217: # not an exact number of hours.
1218: # hours very likely to be different.
1219: # weekday will differ when localtime/gmtime difference
1220: # straddles midnight.
1221: #
1222: # Assume that difference between localtime and gmtime is less than
1223: # 5 days, then don't have to do maths for day of month, month number,
1224: # year number, etc...
1225:
1226: my ($delta,$element) = @_;
1227: my $adjust = 0;
1228:
1229: if ($element == 0) { # Seconds
1230: $adjust = $delta/86400; # 60 * 60 * 24
1231: } elsif ($element == 1) { # Minutes
1232: $adjust = $delta/1440; # 60 * 24
1233: } elsif ($element == 2) { # Hours
1234: $adjust = $delta/24; # 24
1235: } elsif ($element == 6) { # Day of week number
1236: # Catch difference straddling Sat/Sun in either direction
1237: $delta += 7 if ($delta < -4);
1238: $delta -= 7 if ($delta > 4);
1239:
1240: $adjust = $delta;
1241: }
1242: return $adjust;
1.1 stredwic 1243: }
1244:
1.46 matthew 1245: sub build_foil_index {
1246: my ($ORdata) = @_;
1.48 matthew 1247: return if (! exists($ORdata->{'_Foils'}));
1248: my %Foildata = %{$ORdata->{'_Foils'}};
1.46 matthew 1249: my @Foils = sort(keys(%Foildata));
1250: my %Concepts;
1251: foreach my $foilid (@Foils) {
1.48 matthew 1252: push(@{$Concepts{$Foildata{$foilid}->{'_Concept'}}},
1.46 matthew 1253: $foilid);
1254: }
1255: undef(@Foils);
1256: # Having gathered the concept information in a hash, we now translate it
1257: # into an array because we need to be consistent about order.
1258: # Also put the foils in order, too.
1259: my $sortfunction = sub {
1260: my %Numbers = (one => 1,
1261: two => 2,
1262: three => 3,
1263: four => 4,
1264: five => 5,
1265: six => 6,
1266: seven => 7,
1267: eight => 8,
1268: nine => 9,
1269: ten => 10,);
1270: my $a1 = lc($a);
1271: my $b1 = lc($b);
1272: if (exists($Numbers{$a})) {
1273: $a1 = $Numbers{$a};
1274: }
1275: if (exists($Numbers{$b})) {
1276: $b1 = $Numbers{$b};
1277: }
1278: $a1 cmp $b1;
1279: };
1280: my @Concepts;
1281: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1282: push(@Concepts,{ name => $concept,
1283: foils => [@{$Concepts{$concept}}]});
1284: push(@Foils,(@{$Concepts{$concept}}));
1285: }
1286: #
1287: # Build up the table of row labels.
1288: my $table = '<table border="1" >'."\n";
1289: if (@Concepts > 1) {
1290: $table .= '<tr>'.
1291: '<th>'.&mt('Concept Number').'</th>'.
1292: '<th>'.&mt('Concept').'</th>'.
1293: '<th>'.&mt('Foil Number').'</th>'.
1294: '<th>'.&mt('Foil Name').'</th>'.
1295: '<th>'.&mt('Foil Text').'</th>'.
1296: '<th>'.&mt('Correct Value').'</th>'.
1297: "</tr>\n";
1298: } else {
1299: $table .= '<tr>'.
1300: '<th>'.&mt('Foil Number').'</th>'.
1301: '<th>'.&mt('Foil Name').'</th>'.
1302: '<th>'.&mt('Foil Text').'</th>'.
1303: '<th>'.&mt('Correct Value').'</th>'.
1304: "</tr>\n";
1305: }
1306: my $conceptindex = 1;
1307: my $foilindex = 1;
1308: foreach my $concept (@Concepts) {
1309: my @FoilsInConcept = @{$concept->{'foils'}};
1310: my $firstfoil = shift(@FoilsInConcept);
1311: if (@Concepts > 1) {
1312: $table .= '<tr>'.
1313: '<td>'.$conceptindex.'</td>'.
1314: '<td>'.$concept->{'name'}.'</td>'.
1315: '<td>'.$foilindex++.'</td>'.
1316: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1317: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1318: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1319: "</tr>\n";
1320: } else {
1321: $table .= '<tr>'.
1322: '<td>'.$foilindex++.'</td>'.
1323: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
1324: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
1325: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1326: "</tr>\n";
1327: }
1328: foreach my $foilid (@FoilsInConcept) {
1329: if (@Concepts > 1) {
1330: $table .= '<tr>'.
1331: '<td></td>'.
1332: '<td></td>'.
1333: '<td>'.$foilindex.'</td>'.
1334: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1335: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1336: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1337: "</tr>\n";
1338: } else {
1339: $table .= '<tr>'.
1340: '<td>'.$foilindex.'</td>'.
1341: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
1342: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
1343: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
1344: "</tr>\n";
1345: }
1346: } continue {
1347: $foilindex++;
1348: }
1349: } continue {
1350: $conceptindex++;
1351: }
1352: $table .= "</table>\n";
1353: #
1354: # Build option index with color stuff
1355: return ($table,\@Foils,\@Concepts);
1356: }
1357:
1358: sub build_option_index {
1359: my ($ORdata)= @_;
1360: my $table = "<table>\n";
1361: my $optionindex = 0;
1362: my @Rows;
1.48 matthew 1363: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'_Options'}}) {
1.46 matthew 1364: push (@Rows,
1365: '<tr>'.
1366: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
1367: (' 'x4).'</td>'.
1368: '<td>'.$option.'</td>'.
1369: "</tr>\n");
1370: }
1371: shift(@Rows); # Throw away 'correct option chosen' color
1372: $table .= join('',reverse(@Rows));
1373: $table .= "</table>\n";
1374: }
1375:
1.33 matthew 1376: #########################################################
1377: #########################################################
1378: ##
1.46 matthew 1379: ## Generic Interface Routines
1.33 matthew 1380: ##
1381: #########################################################
1382: #########################################################
1.23 matthew 1383: sub CreateInterface {
1.28 matthew 1384: ##
1385: ## Environment variable initialization
1.36 matthew 1386: if (! exists$ENV{'form.AnalyzeOver'}) {
1387: $ENV{'form.AnalyzeOver'} = 'Tries';
1.28 matthew 1388: }
1389: ##
1390: ## Build the menu
1.7 stredwic 1391: my $Str = '';
1.23 matthew 1392: $Str .= '<table cellspacing="5">'."\n";
1393: $Str .= '<tr>';
1394: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1395: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 1396: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1397: $Str .= '<td align="center"> </td>';
1.23 matthew 1398: $Str .= '</tr>'."\n";
1.31 matthew 1399: ##
1400: ##
1.23 matthew 1401: $Str .= '<tr><td align="center">'."\n";
1402: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 1403: $Str .= '</td>';
1404: #
1405: $Str .= '<td align="center">';
1.23 matthew 1406: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 1407: $Str .= '</td>';
1408: #
1.31 matthew 1409: # $Str .= '<td align="center">';
1.23 matthew 1410: my $only_seq_with_assessments = sub {
1411: my $s=shift;
1412: if ($s->{'num_assess'} < 1) {
1413: return 0;
1414: } else {
1415: return 1;
1416: }
1417: };
1.31 matthew 1418: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 1419: $only_seq_with_assessments);
1.36 matthew 1420: ##
1421: ##
1.28 matthew 1422: $Str .= '<td>';
1.36 matthew 1423: { # These braces are here to organize the code, not scope it.
1424: {
1425: $Str .= '<nobr>'.&mt('Analyze Over ');
1.51 matthew 1426: $Str .= &Apache::loncommon::help_open_topic
1427: ('Analysis_Analyze_Over');
1.36 matthew 1428: $Str .='<select name="AnalyzeOver" >';
1429: $Str .= '<option value="Tries" ';
1430: if (! exists($ENV{'form.AnalyzeOver'}) ||
1431: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1432: # Default to Tries
1433: $Str .= ' selected ';
1434: }
1435: $Str .= '>'.&mt('Tries').'</option>';
1436: $Str .= '<option value="Time" ';
1437: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1438: $Str .= '>'.&mt('Time').'</option>';
1.51 matthew 1439: $Str .= '</select>';
1440: $Str .= '</nobr><br />';
1.36 matthew 1441: }
1442: {
1443: $Str .= '<nobr>'.&mt('Analyze as ');
1.51 matthew 1444: $Str .= &Apache::loncommon::help_open_topic
1445: ('Analysis_Analyze_as');
1.36 matthew 1446: $Str .='<select name="AnalyzeAs" >';
1447: $Str .= '<option value="Concepts" ';
1448: if (! exists($ENV{'form.AnalyzeAs'}) ||
1449: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1450: # Default to Concepts
1451: $Str .= ' selected ';
1452: }
1453: $Str .= '>'.&mt('Concepts').'</option>';
1454: $Str .= '<option value="Foils" ';
1455: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1456: $Str .= '>'.&mt('Foils').'</option>';
1457: $Str .= '</select></nobr><br />';
1458: }
1459: {
1460: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1.52 matthew 1461: $Str .= &Apache::loncommon::help_open_topic
1462: ('Analysis_num_plots');
1.36 matthew 1463: $Str .= '<select name="NumPlots">';
1464: if (! exists($ENV{'form.NumPlots'})
1465: || $ENV{'form.NumPlots'} < 1
1466: || $ENV{'form.NumPlots'} > 20) {
1467: $ENV{'form.NumPlots'} = 5;
1468: }
1469: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1470: $Str .= '<option value="'.$i.'" ';
1471: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1472: $Str .= '>'.$i.'</option>';
1473: }
1474: $Str .= '</select></nobr>';
1475: }
1.28 matthew 1476: }
1477: $Str .= '</td>';
1.36 matthew 1478: ##
1479: ##
1.28 matthew 1480: $Str .= '</tr>'."\n";
1.23 matthew 1481: $Str .= '</table>'."\n";
1.42 matthew 1482: return $Str;
1.23 matthew 1483: }
1484:
1.46 matthew 1485: sub ProblemSelector {
1.23 matthew 1486: my $Str;
1487: $Str = "\n<table>\n";
1488: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1489: next if ($seq->{'num_assess'}<1);
1490: my $seq_str = '';
1491: foreach my $res (@{$seq->{'contents'}}) {
1.26 matthew 1492: next if ($res->{'type'} ne 'assessment');
1.23 matthew 1493: foreach my $part (@{$res->{'parts'}}) {
1494: my $partdata = $res->{'partdata'}->{$part};
1.47 matthew 1495: # &Apache::lonnet::logthis('----------------');
1496: # while (my ($k,$v)=each(%$partdata)) {
1497: # if (ref($v) eq 'ARRAY') {
1498: # &Apache::lonnet::logthis($k.' = '.join(',',@$v));
1499: # } else {
1500: # &Apache::lonnet::logthis($k.' = '.$v);
1501: # }
1502: # }
1503: if ((! exists($partdata->{'option'}) ||
1504: $partdata->{'option'} == 0 ) &&
1505: (! exists($partdata->{'radiobutton'}) ||
1506: $partdata->{'radiobutton'} == 0)) {
1.23 matthew 1507: next;
1508: }
1509: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1510: my $respid = $partdata->{'ResponseIds'}->[$i];
1511: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1.56 ! matthew 1512: # if ($resptype eq 'option' ){
! 1513: if ($resptype eq 'option' || $resptype eq 'radiobutton') {
1.54 matthew 1514: my $value = &make_target_id({symb=>$res->{'symb'},
1515: part=>$part,
1516: respid=>$respid,
1517: resptype=>$resptype});
1.23 matthew 1518: my $checked = '';
1519: if ($ENV{'form.problemchoice'} eq $value) {
1520: $checked = 'checked ';
1521: }
1.50 matthew 1522: my $title = $res->{'title'};
1523: if (! defined($title) || $title eq '') {
1524: ($title) = ($res->{'src'} =~ m:/([^/]*)$:);
1525: }
1.23 matthew 1526: $seq_str .= '<tr><td>'.
1527: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
1.56 ! matthew 1528: '</td><td>'.
! 1529: #.$resptype.'</td><td>'.
1.50 matthew 1530: '<a href="'.$res->{'src'}.'">'.$title.'</a> ';
1.48 matthew 1531: # '<a href="'.$res->{'src'}.'">'.$resptype.' '.$res->{'title'}.'</a> ';
1.23 matthew 1532: if ($partdata->{'option'} > 1) {
1533: $seq_str .= &mt('response').' '.$respid;
1534: }
1535: $seq_str .= "</td></tr>\n";
1.11 minaeibi 1536: }
1537: }
1538: }
1539: }
1.23 matthew 1540: if ($seq_str ne '') {
1541: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
1542: "</tr>\n".$seq_str;
1543: }
1.11 minaeibi 1544: }
1.23 matthew 1545: $Str .= "</table>\n";
1546: return $Str;
1.33 matthew 1547: }
1548:
1549: #########################################################
1550: #########################################################
1551: ##
1552: ## Misc functions
1553: ##
1554: #########################################################
1555: #########################################################
1556: sub get_problem_symb {
1557: my $problemstring = shift();
1.54 matthew 1558: my ($symb,$partid,$respid,$resptype) = split(':',$problemstring);
1559: return ({ symb => $symb,
1560: part => $partid,
1561: respid => $respid,
1562: type => $resptype } );
1.11 minaeibi 1563: }
1564:
1.23 matthew 1565: sub get_resource_from_symb {
1566: my ($symb) = @_;
1567: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1568: foreach my $res (@{$seq->{'contents'}}) {
1569: if ($res->{'symb'} eq $symb) {
1570: return $res;
1.2 stredwic 1571: }
1.1 stredwic 1572: }
1573: }
1.23 matthew 1574: return undef;
1.42 matthew 1575: }
1576:
1.54 matthew 1577: sub get_prev_curr_next {
1578: my ($target) = @_;
1579: #
1580: # Build an array with the data we need to search through
1581: my @Resource;
1582: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1583: foreach my $res (@{$seq->{'contents'}}) {
1584: next if ($res->{'type'} ne 'assessment');
1585: foreach my $part (@{$res->{'parts'}}) {
1586: my $partdata = $res->{'partdata'}->{$part};
1587: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1588: my $respid = $partdata->{'ResponseIds'}->[$i];
1589: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1.56 ! matthew 1590: next if ($resptype ne 'option' &&
! 1591: $resptype ne 'radiobutton');
1.54 matthew 1592: push (@Resource,
1593: { symb => $res->{symb},
1594: part => $part,
1595: respid => $partdata->{'ResponseIds'}->[$i],
1596: resource => $res,
1597: resptype => $resptype
1598: } );
1599: }
1600: }
1601: }
1602: }
1603: #
1604: #
1605: # Get the index of the current situation
1606: my $curr_idx;
1607: for ($curr_idx=0;$curr_idx<$#Resource;$curr_idx++) {
1608: my $curr_item = $Resource[$curr_idx];
1609: last if ($curr_item->{'symb'} eq $target->{'symb'} &&
1610: $curr_item->{'part'} eq $target->{'part'} &&
1611: $curr_item->{'respid'} eq $target->{'respid'} &&
1612: $curr_item->{'resptype'} eq $target->{'resptype'});
1613: }
1614: my $curr_item = $Resource[$curr_idx];
1615: if ($curr_item->{'symb'} ne $target->{'symb'} ||
1616: $curr_item->{'part'} ne $target->{'part'} ||
1617: $curr_item->{'respid'} ne $target->{'respid'} ||
1618: $curr_item->{'resptype'} ne $target->{'resptype'}){
1619: # bogus symb - return nothing
1620: return (undef,undef,undef);
1621: }
1622: #
1623: # Now just pick up the data we need
1624: my ($prev,$curr,$next);
1625: if ($curr_idx == 0) {
1626: $prev = undef;
1627: $curr = $Resource[$curr_idx ];
1628: $next = $Resource[$curr_idx+1];
1629: } elsif ($curr_idx == $#Resource) {
1630: $prev = $Resource[$curr_idx-1];
1631: $curr = $Resource[$curr_idx ];
1632: $next = undef;
1633: } else {
1634: $prev = $Resource[$curr_idx-1];
1635: $curr = $Resource[$curr_idx ];
1636: $next = $Resource[$curr_idx+1];
1637: }
1638: return ($prev,$curr,$next);
1639: }
1640:
1641: sub make_target_id {
1642: my ($target) = @_;
1643: my $id = &Apache::lonnet::escape($target->{'symb'}).':'.
1644: &Apache::lonnet::escape($target->{'part'}).':'.
1645: &Apache::lonnet::escape($target->{'respid'}).':'.
1646: &Apache::lonnet::escape($target->{'resptype'});
1647: return $id;
1648: }
1649:
1650: sub get_target_from_id {
1651: my ($id) = @_;
1652: my ($symb,$part,$respid,$resptype) = split(':',$id);
1653: return ({ symb =>&Apache::lonnet::unescape($symb),
1654: part =>&Apache::lonnet::unescape($part),
1655: respid =>&Apache::lonnet::unescape($respid),
1656: resptype =>&Apache::lonnet::unescape($resptype)});
1657: }
1.47 matthew 1658:
1659: #########################################################
1660: #########################################################
1661: ##
1662: ## Misc Option Response functions
1663: ##
1664: #########################################################
1665: #########################################################
1666: sub get_time_from_row {
1.42 matthew 1667: my ($row) = @_;
1668: if (ref($row)) {
1.47 matthew 1669: return $row->[&Apache::loncoursedata::RD_timestamp()];
1.42 matthew 1670: }
1671: return undef;
1672: }
1673:
1.47 matthew 1674: sub get_tries_from_row {
1.42 matthew 1675: my ($row) = @_;
1676: if (ref($row)) {
1.47 matthew 1677: return $row->[&Apache::loncoursedata::RD_tries()];
1.42 matthew 1678: }
1679: return undef;
1680: }
1681:
1.48 matthew 1682: sub hashify_attempt {
1683: my ($row) = @_;
1684: my %attempt;
1685: $attempt{'tries'} = $row->[&Apache::loncoursedata::RD_tries()];
1686: $attempt{'submission'} = $row->[&Apache::loncoursedata::RD_submission()];
1687: $attempt{'award'} = $row->[&Apache::loncoursedata::RD_awarddetail()];
1688: $attempt{'timestamp'} = $row->[&Apache::loncoursedata::RD_timestamp()];
1689: return %attempt;
1690: }
1691:
1.46 matthew 1692: sub Process_OR_Row {
1.42 matthew 1693: my ($row) = @_;
1694: my %RowData;
1.47 matthew 1695: my $student_id = $row->[&Apache::loncoursedata::RD_student_id()];
1696: my $award = $row->[&Apache::loncoursedata::RD_awarddetail()];
1697: my $grading = $row->[&Apache::loncoursedata::RD_response_eval()];
1698: my $submission = $row->[&Apache::loncoursedata::RD_submission()];
1699: my $time = $row->[&Apache::loncoursedata::RD_timestamp()];
1700: my $tries = $row->[&Apache::loncoursedata::RD_tries()];
1.43 matthew 1701: return undef if ($award eq 'MISSING_ANSWER');
1.42 matthew 1702: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1703: $RowData{'_correct'} = 1;
1704: }
1705: $RowData{'_total'} = 1;
1706: my @Foilgrades = split('&',$grading);
1707: my @Foilsubs = split('&',$submission);
1708: for (my $j=0;$j<=$#Foilgrades;$j++) {
1709: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1710: my (undef,$submission) = split('=',$Foilsubs[$j]);
1711: if ($correct) {
1712: $RowData{$foilid}->{'_correct'}++;
1713: } else {
1714: $submission = &Apache::lonnet::unescape($submission);
1715: $RowData{$foilid}->{$submission}++;
1716: }
1717: $RowData{$foilid}->{'_total'}++;
1718: }
1719: return %RowData;
1.1 stredwic 1720: }
1721:
1.39 matthew 1722: ##
1723: ## get problem data and put it into a useful data structure.
1724: ## note: we must force each foil and option to not begin or end with
1725: ## spaces as they are stored without such data.
1726: ##
1.48 matthew 1727: sub get_problem_data {
1.25 matthew 1728: my ($url) = @_;
1729: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 1730: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 1731: my %Answer;
1.23 matthew 1732: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 1733: my %Partdata;
1734: foreach my $part (@{$Answer{'parts'}}) {
1735: while (my($key,$value) = each(%Answer)) {
1736: next if ($key !~ /^$part/);
1737: $key =~ s/^$part\.//;
1738: if (ref($value) eq 'ARRAY') {
1739: if ($key eq 'options') {
1.48 matthew 1740: $Partdata{$part}->{'_Options'}=$value;
1.25 matthew 1741: } elsif ($key eq 'concepts') {
1.48 matthew 1742: $Partdata{$part}->{'_Concepts'}=$value;
1.25 matthew 1743: } elsif ($key =~ /^concept\.(.*)$/) {
1744: my $concept = $1;
1745: foreach my $foil (@$value) {
1.48 matthew 1746: $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=
1.36 matthew 1747: $concept;
1.25 matthew 1748: }
1749: }
1750: } else {
1751: if ($key=~ /^foil\.text\.(.*)$/) {
1752: my $foil = $1;
1.48 matthew 1753: $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;
1.43 matthew 1754: $value =~ s/(\s*$|^\s*)//g;
1.48 matthew 1755: $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;
1.25 matthew 1756: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1757: my $foil = $1;
1.48 matthew 1758: $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;
1.25 matthew 1759: }
1.47 matthew 1760: }
1761: }
1762: }
1763: return %Partdata;
1764: }
1765:
1.23 matthew 1766: 1;
1.1 stredwic 1767:
1768: __END__
1.48 matthew 1769:
1770: #####
1771: # partdata{part}->{_Foils}->{foilid}->{'name'} = $
1772: # ->{'text'} = $
1773: # ->{'value'} = $
1774: # ->{'_Concept'} = $
1775: # partdata{part}->{_Options} = @
1776: # partdata{part}->{_Concepts} = @
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