Annotation of loncom/interface/statistics/lonproblemanalysis.pm, revision 1.43
1.1 stredwic 1: # The LearningOnline Network with CAPA
2: #
1.43 ! matthew 3: # $Id: lonproblemanalysis.pm,v 1.42 2003/10/17 22:05:45 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: #
27:
1.11 minaeibi 28: package Apache::lonproblemanalysis;
1.1 stredwic 29:
30: use strict;
31: use Apache::lonnet();
1.25 matthew 32: use Apache::loncommon();
1.7 stredwic 33: use Apache::lonhtmlcommon();
1.23 matthew 34: use Apache::loncoursedata();
35: use Apache::lonstatistics;
36: use Apache::lonlocal;
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 $plotcolors = ['#33ff00',
42: '#0033cc', '#990000', '#aaaa66', '#663399', '#ff9933',
43: '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
44: ];
1.39 matthew 45:
1.1 stredwic 46: sub BuildProblemAnalysisPage {
1.23 matthew 47: my ($r,$c)=@_;
1.24 matthew 48: $r->print('<h2>'.&mt('Option Response Problem Analysis').'</h2>');
1.25 matthew 49: $r->print(&CreateInterface());
1.28 matthew 50: #
51: my @Students = @Apache::lonstatistics::Students;
52: #
1.41 matthew 53: if (exists($ENV{'form.ClearCache'}) ||
54: exists($ENV{'form.updatecaches'}) ||
1.33 matthew 55: (exists($ENV{'form.firstanalysis'}) &&
56: $ENV{'form.firstanalysis'} ne 'no')) {
57: &Apache::lonstatistics::Gather_Full_Student_Data($r);
58: }
59: if (! exists($ENV{'form.firstanalysis'})) {
60: $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
61: } else {
62: $r->print('<input type="hidden" name="firstanalysis" value="no" />');
63: }
1.39 matthew 64: $r->rflush();
1.33 matthew 65: if (exists($ENV{'form.problemchoice'}) &&
66: ! exists($ENV{'form.SelectAnother'})) {
1.31 matthew 67: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
68: &mt('Analyze Problem Again').'" />');
69: $r->print(' 'x5);
70: $r->print('<input type="submit" name="ClearCache" value="'.
71: &mt('Clear Caches').'" />');
72: $r->print(' 'x5);
1.33 matthew 73: $r->print('<input type="submit" name="updatecaches" value="'.
74: &mt('Update Student Data').'" />');
75: $r->print(' 'x5);
1.31 matthew 76: $r->print('<input type="hidden" name="problemchoice" value="'.
77: $ENV{'form.problemchoice'}.'" />');
78: $r->print('<input type="submit" name="SelectAnother" value="'.
79: &mt('Choose a different resource').'" />');
80: $r->print(' 'x5);
1.43 ! matthew 81: $r->print('<input type="submit" name="ExcelOutput" value="'.
! 82: &mt('Produce Excel Data Sheet').'" />');
! 83: $r->print(' 'x5);
1.31 matthew 84: #
1.25 matthew 85: $r->print('<hr />');
1.23 matthew 86: #
1.25 matthew 87: my ($symb,$part,$resid) = &get_problem_symb(
1.23 matthew 88: &Apache::lonnet::unescape($ENV{'form.problemchoice'})
89: );
1.43 ! matthew 90: $r->rflush();
1.28 matthew 91: #
1.23 matthew 92: my $resource = &get_resource_from_symb($symb);
93: if (defined($resource)) {
1.41 matthew 94: $r->print('<h3>'.$resource->{'src'}.'</h3>');
1.25 matthew 95: my %Data = &get_problem_data($resource->{'src'});
1.43 ! matthew 96: my $PerformanceData =
! 97: &Apache::loncoursedata::get_optionresponse_data
! 98: (\@Students,$symb,$resid);
1.25 matthew 99: my $ORdata = $Data{$part.'.'.$resid};
1.43 ! matthew 100: if (exists($ENV{'form.ExcelOutput'}) &&
! 101: defined($PerformanceData)) {
! 102: my $result = &prepare_excel_sheet($r,$resource,
! 103: $PerformanceData,$ORdata);
! 104: $r->print($result);
! 105: $r->rflush();
! 106: }
1.25 matthew 107: ##
1.26 matthew 108: ## Render the problem
1.25 matthew 109: my $base;
110: ($base,undef) = ($resource->{'src'} =~ m|(.*/)[^/]*$|);
111: $base = "http://".$ENV{'SERVER_NAME'}.$base;
1.26 matthew 112: my $rendered_problem =
113: &Apache::lonnet::ssi_body($resource->{'src'});
1.30 matthew 114: $rendered_problem =~ s/<\s*form\s*/<nop /g;
115: $rendered_problem =~ s|(<\s*/form\s*>)|<\/nop>|g;
1.26 matthew 116: $r->print('<table bgcolor="ffffff"><tr><td>'.
1.25 matthew 117: '<base href="'.$base.'" />'.
1.26 matthew 118: $rendered_problem.
119: '</td></tr></table>');
1.43 ! matthew 120: $r->rflush();
1.25 matthew 121: ##
122: ## Analyze the problem
1.26 matthew 123: if (defined($PerformanceData) &&
124: ref($PerformanceData) eq 'ARRAY') {
1.36 matthew 125: if ($ENV{'form.AnalyzeOver'} eq 'Tries') {
1.43 ! matthew 126: my $analysis_html = &tries_analysis($r,$PerformanceData,
1.33 matthew 127: $ORdata);
128: $r->print($analysis_html);
1.43 ! matthew 129: $r->rflush();
1.36 matthew 130: } elsif ($ENV{'form.AnalyzeOver'} eq 'Time') {
1.33 matthew 131: my $analysis_html = &time_analysis($PerformanceData,
1.28 matthew 132: $ORdata);
1.43 ! matthew 133: $r->print($analysis_html);
! 134: $r->rflush();
1.28 matthew 135: } else {
136: $r->print('<h2>'.
137: &mt('The analysis you have selected is '.
138: 'not supported at this time').
139: '</h2>');
140: }
1.26 matthew 141: } else {
142: $r->print('<h2>'.
143: &mt('There is no student data for this problem.').
144: '</h2>');
145: }
1.23 matthew 146: } else {
147: $r->print('resource is undefined');
1.7 stredwic 148: }
1.23 matthew 149: $r->print('<hr />');
1.25 matthew 150: } else {
1.31 matthew 151: $r->print('<input type="submit" name="ProblemAnalysis" value="'.
152: &mt('Analyze Problem').'" />');
153: $r->print(' 'x5);
1.27 matthew 154: $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.31 matthew 155: $r->print(&OptionResponseProblemSelector());
1.1 stredwic 156: }
157: }
158:
1.33 matthew 159: #########################################################
160: #########################################################
161: ##
162: ## Misc interface routines use by analysis code
163: ##
164: #########################################################
165: #########################################################
166: sub build_foil_index {
167: my ($ORdata) = @_;
1.41 matthew 168: return if (! exists($ORdata->{'Foils'}));
1.36 matthew 169: my %Foildata = %{$ORdata->{'Foils'}};
170: my @Foils = sort(keys(%Foildata));
171: my %Concepts;
1.25 matthew 172: foreach my $foilid (@Foils) {
1.36 matthew 173: push(@{$Concepts{$Foildata{$foilid}->{'Concept'}}},
174: $foilid);
175: }
176: undef(@Foils);
177: # Having gathered the concept information in a hash, we now translate it
178: # into an array because we need to be consistent about order.
179: # Also put the foils in order, too.
180: my $sortfunction = sub {
181: my %Numbers = (one => 1,
182: two => 2,
183: three => 3,
184: four => 4,
185: five => 5,
186: six => 6,
187: seven => 7,
188: eight => 8,
189: nine => 9,
190: ten => 10,);
1.43 ! matthew 191: my $a1 = lc($a);
! 192: my $b1 = lc($b);
! 193: if (exists($Numbers{$a})) {
! 194: $a1 = $Numbers{$a};
1.36 matthew 195: }
1.43 ! matthew 196: if (exists($Numbers{$b})) {
! 197: $b1 = $Numbers{$b};
1.36 matthew 198: }
199: $a1 cmp $b1;
200: };
201: my @Concepts;
202: foreach my $concept (sort $sortfunction (keys(%Concepts))) {
1.39 matthew 203: push(@Concepts,{ name => $concept,
1.36 matthew 204: foils => [@{$Concepts{$concept}}]});
205: push(@Foils,(@{$Concepts{$concept}}));
1.25 matthew 206: }
1.31 matthew 207: #
208: # Build up the table of row labels.
209: my $table = '<table border="1" >'."\n";
1.39 matthew 210: if (@Concepts > 1) {
211: $table .= '<tr>'.
212: '<th>'.&mt('Concept Number').'</th>'.
213: '<th>'.&mt('Concept').'</th>'.
214: '<th>'.&mt('Foil Number').'</th>'.
215: '<th>'.&mt('Foil Name').'</th>'.
216: '<th>'.&mt('Foil Text').'</th>'.
217: '<th>'.&mt('Correct Value').'</th>'.
218: "</tr>\n";
219: } else {
220: $table .= '<tr>'.
221: '<th>'.&mt('Foil Number').'</th>'.
222: '<th>'.&mt('Foil Name').'</th>'.
223: '<th>'.&mt('Foil Text').'</th>'.
224: '<th>'.&mt('Correct Value').'</th>'.
225: "</tr>\n";
226: }
1.36 matthew 227: my $conceptindex = 1;
228: my $foilindex = 1;
229: foreach my $concept (@Concepts) {
230: my @FoilsInConcept = @{$concept->{'foils'}};
231: my $firstfoil = shift(@FoilsInConcept);
1.39 matthew 232: if (@Concepts > 1) {
233: $table .= '<tr>'.
234: '<td>'.$conceptindex.'</td>'.
235: '<td>'.$concept->{'name'}.'</td>'.
236: '<td>'.$foilindex++.'</td>'.
237: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
238: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
239: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
240: "</tr>\n";
241: } else {
1.36 matthew 242: $table .= '<tr>'.
1.39 matthew 243: '<td>'.$foilindex++.'</td>'.
244: '<td>'.$Foildata{$firstfoil}->{'name'}.'</td>'.
245: '<td>'.$Foildata{$firstfoil}->{'text'}.'</td>'.
246: '<td>'.$Foildata{$firstfoil}->{'value'}.'</td>'.
1.36 matthew 247: "</tr>\n";
1.39 matthew 248: }
249: foreach my $foilid (@FoilsInConcept) {
250: if (@Concepts > 1) {
251: $table .= '<tr>'.
252: '<td></td>'.
253: '<td></td>'.
254: '<td>'.$foilindex.'</td>'.
255: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
256: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
257: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
258: "</tr>\n";
259: } else {
260: $table .= '<tr>'.
261: '<td>'.$foilindex.'</td>'.
262: '<td>'.$Foildata{$foilid}->{'name'}.'</td>'.
263: '<td>'.$Foildata{$foilid}->{'text'}.'</td>'.
264: '<td>'.$Foildata{$foilid}->{'value'}.'</td>'.
265: "</tr>\n";
266: }
1.36 matthew 267: } continue {
268: $foilindex++;
269: }
1.31 matthew 270: } continue {
1.36 matthew 271: $conceptindex++;
1.25 matthew 272: }
1.31 matthew 273: $table .= "</table>\n";
1.39 matthew 274: #
275: # Build option index with color stuff
1.36 matthew 276: return ($table,\@Foils,\@Concepts);
1.33 matthew 277: }
278:
1.39 matthew 279: sub build_option_index {
280: my ($ORdata)= @_;
281: my $table = "<table>\n";
282: my $optionindex = 0;
283: my @Rows;
1.41 matthew 284: foreach my $option (&mt('correct option chosen'),@{$ORdata->{'Options'}}) {
1.39 matthew 285: push (@Rows,
286: '<tr>'.
287: '<td bgcolor="'.$plotcolors->[$optionindex++].'">'.
288: (' 'x4).'</td>'.
289: '<td>'.$option.'</td>'.
290: "</tr>\n");
291: }
1.42 matthew 292: shift(@Rows); # Throw away 'correct option chosen' color
1.39 matthew 293: $table .= join('',reverse(@Rows));
294: $table .= "</table>\n";
295: }
296:
1.33 matthew 297: #########################################################
298: #########################################################
299: ##
300: ## Tries Analysis
301: ##
302: #########################################################
303: #########################################################
304: sub tries_analysis {
1.43 ! matthew 305: my ($r,$PerformanceData,$ORdata) = @_;
1.33 matthew 306: my $mintries = 1;
307: my $maxtries = $ENV{'form.NumPlots'};
1.39 matthew 308: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
309: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
310: $table = '<h3>'.
311: &mt('Not enough data for concept analysis. '.
312: 'Performing Foil Analysis').
313: '</h3>'.$table;
314: $ENV{'form.AnalyzeAs'} = 'Foils';
315: }
1.43 ! matthew 316: my %ResponseData = &analyze_option_data_by_tries($r,$PerformanceData,
1.36 matthew 317: $mintries,$maxtries);
1.42 matthew 318: my $analysis = '';
319: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
320: $analysis = &Tries_Foil_Analysis($mintries,$maxtries,$Foils,
321: \%ResponseData,$ORdata);
322: } else {
323: $analysis = &Tries_Concept_Analysis($mintries,$maxtries,
324: $Concepts,\%ResponseData,$ORdata);
325: }
326: $table .= $analysis;
327: return $table;
328: }
329:
330: sub Tries_Foil_Analysis {
331: my ($mintries,$maxtries,$Foils,$respdat,$ORdata) = @_;
332: my %ResponseData = %$respdat;
1.31 matthew 333: #
334: # Compute the data neccessary to make the plots
1.42 matthew 335: my @PlotData;
336: foreach my $foilid (@$Foils) {
337: for (my $i=$mintries;$i<=$maxtries;$i++) {
338: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
339: push(@{$PlotData[$i]->{'_correct'}},0);
340: } else {
341: push(@{$PlotData[$i]->{'_correct'}},
342: 100*$ResponseData{$foilid}->[$i]->{'_correct'}/
343: $ResponseData{$foilid}->[$i]->{'_total'});
344: }
345: foreach my $option (@{$ORdata->{'Options'}}) {
346: push(@{$PlotData[$i]->{'_total'}},
347: $ResponseData{$foilid}->[$i]->{'_total'});
348: if ($ResponseData{$foilid}->[$i]->{'_total'} == 0) {
349: push (@{$PlotData[$i]->{$option}},0);
350: } else {
351: if ($ResponseData{$foilid}->[$i]->{'_total'} ==
352: $ResponseData{$foilid}->[$i]->{'_correct'}) {
353: push(@{$PlotData[$i]->{$option}},0);
1.39 matthew 354: } else {
355: push (@{$PlotData[$i]->{$option}},
356: 100 * $ResponseData{$foilid}->[$i]->{$option} /
1.42 matthew 357: ($ResponseData{$foilid}->[$i]->{'_total'} -
358: $ResponseData{$foilid}->[$i]->{'_correct'}));
1.39 matthew 359: }
1.36 matthew 360: }
361: }
362: }
1.42 matthew 363: }
364: #
365: # Build a table for the plots
366: my $analysis_html = "<table>\n";
367: my $foilkey = &build_option_index($ORdata);
368: for (my $i=$mintries;$i<=$maxtries;$i++) {
369: my $count = $ResponseData{'_total'}->[$i];
370: if ($count == 0) {
371: $count = 'no submissions';
372: } elsif ($count == 1) {
373: $count = '1 submission';
374: } else {
375: $count = $count.' submissions';
376: }
377: my $title = 'Attempt '.$i.', '.$count;
378: my @Datasets;
379: foreach my $option ('_correct',@{$ORdata->{'Options'}}) {
380: next if (! exists($PlotData[$i]->{$option}));
381: push(@Datasets,$PlotData[$i]->{$option});
382: }
383: my $correctgraph = &Apache::loncommon::DrawGraph
384: ($title,'Foil Number','Percent Correct',
385: 100,$plotcolors,$Datasets[0]);
386: $analysis_html.= '<tr><td>'.$correctgraph.'</td>';
387: ##
388: ##
389: for (my $i=0; $i< scalar(@{$Datasets[0]});$i++) {
390: $Datasets[0]->[$i]=0;
391: }
392: $count = $ResponseData{'_total'}->[$i]-$ResponseData{'_correct'}->[$i];
393: if ($count == 0) {
394: $count = 'no submissions';
395: } elsif ($count == 1) {
396: $count = '1 submission';
397: } else {
398: $count = $count.' submissions';
399: }
400: $title = 'Attempt '.$i.', '.$count;
401: my $incorrectgraph = &Apache::loncommon::DrawGraph
402: ($title,'Foil Number','% Option Chosen Incorrectly',
403: 100,$plotcolors,@Datasets);
404: $analysis_html.= '<td>'.$incorrectgraph.'</td>';
405: $analysis_html.= '<td>'.$foilkey."<td></tr>\n";
406: }
407: $analysis_html .= "</table>\n";
408: return $analysis_html;
409: }
410:
411: sub Tries_Concept_Analysis {
412: my ($mintries,$maxtries,$Concepts,$respdat,$ORdata) = @_;
413: my %ResponseData = %$respdat;
414: my $analysis_html = "<table>\n";
415: #
416: # Compute the data neccessary to make the plots
417: my @PlotData;
418: # Concept analysis
419: #
420: # Note: we do not bother with characterizing the students incorrect
421: # answers at the concept level because an incorrect answer for one foil
422: # may be a correct answer for another foil.
423: my %ConceptData;
424: foreach my $concept (@{$Concepts}) {
425: for (my $i=$mintries;$i<=$maxtries;$i++) {
426: #
427: # Gather the per-attempt data
428: my $cdata = $ConceptData{$concept}->[$i];
429: foreach my $foilid (@{$concept->{'foils'}}) {
430: $cdata->{'_correct'} +=
431: $ResponseData{$foilid}->[$i]->{'_correct'};
432: $cdata->{'_total'} +=
433: $ResponseData{$foilid}->[$i]->{'_total'};
434: }
435: push (@{$PlotData[$i]->{'_total'}},$cdata->{'_total'});
436: if ($cdata->{'_total'} == 0) {
437: push (@{$PlotData[$i]->{'_correct'}},0);
438: } else {
439: push (@{$PlotData[$i]->{'_correct'}},
440: 100*$cdata->{'_correct'}/$cdata->{'_total'});
1.36 matthew 441: }
1.25 matthew 442: }
1.42 matthew 443: }
1.31 matthew 444: # Build a table for the plots
1.25 matthew 445: for (my $i=$mintries;$i<=$maxtries;$i++) {
1.39 matthew 446: my $minstu = $PlotData[$i]->{'_total'}->[0];
447: my $maxstu = $PlotData[$i]->{'_total'}->[0];
448: foreach my $count (@{$PlotData[$i]->{'_total'}}) {
1.36 matthew 449: if ($minstu > $count) {
450: $minstu = $count;
1.27 matthew 451: }
1.36 matthew 452: if ($maxstu < $count) {
453: $maxstu = $count;
1.27 matthew 454: }
455: }
1.39 matthew 456: $maxstu = 0 if (! defined($maxstu));
457: $minstu = 0 if (! defined($minstu));
1.35 matthew 458: my $title;
1.42 matthew 459: my $count = $ResponseData{'_total'}->[$i];
460: if ($count == 0) {
461: $count = 'no submissions';
462: } elsif ($count == 1) {
463: $count = '1 submission';
1.27 matthew 464: } else {
1.42 matthew 465: $count = $count.' submissions';
1.39 matthew 466: }
1.42 matthew 467: $title = 'Attempt '.$i.', '.$count;
468: my $graphlink = &Apache::loncommon::DrawGraph
469: ($title,'Concept Number','Percent Correct',
470: 100,$plotcolors,$PlotData[$i]->{'_correct'});
471: $analysis_html.= '<tr><td>'.$graphlink."</td></tr>\n";
1.25 matthew 472: }
1.42 matthew 473: $analysis_html .= "</table>\n";
474: return $analysis_html;
1.25 matthew 475: }
476:
477: sub analyze_option_data_by_tries {
1.43 ! matthew 478: my ($r,$PerformanceData,$mintries,$maxtries) = @_;
1.25 matthew 479: my %Trydata;
480: $mintries = 1 if (! defined($mintries) || $mintries < 1);
481: $maxtries = $mintries if (! defined($maxtries) || $maxtries < $mintries);
1.26 matthew 482: foreach my $row (@$PerformanceData) {
483: next if (! defined($row));
1.42 matthew 484: my $tries = &get_tries_from_row($row);
485: my %Row = &Process_Row($row);
1.43 ! matthew 486: next if (! %Row);
1.42 matthew 487: while (my ($foilid,$href) = each(%Row)) {
488: if (! ref($href)) {
489: $Trydata{$foilid}->[$tries] += $href;
490: next;
491: }
492: while (my ($option,$value) = each(%$href)) {
493: $Trydata{$foilid}->[$tries]->{$option}+=$value;
1.25 matthew 494: }
495: }
496: }
497: return %Trydata;
498: }
499:
1.33 matthew 500: #########################################################
501: #########################################################
502: ##
503: ## Time Analysis
504: ##
505: #########################################################
506: #########################################################
507: sub time_analysis {
508: my ($PerformanceData,$ORdata) = @_;
1.42 matthew 509: my ($table,$Foils,$Concepts) = &build_foil_index($ORdata);
510: if ((@$Concepts < 2) && ($ENV{'form.AnalyzeAs'} ne 'Foils')) {
511: $table = '<h3>'.
512: &mt('Not enough data for concept analysis. '.
513: 'Performing Foil Analysis').
514: '</h3>'.$table;
515: $ENV{'form.AnalyzeAs'} = 'Foils';
516: }
1.33 matthew 517: my $num_plots = $ENV{'form.NumPlots'};
518: my $num_data = scalar(@$PerformanceData)-1;
519: my $percent = sprintf('%2f',100/$num_plots);
1.42 matthew 520: #
1.37 matthew 521: $table .= "<table>\n";
1.33 matthew 522: for (my $i=0;$i<$num_plots;$i++) {
1.42 matthew 523: ##
1.34 matthew 524: my $starttime = &Apache::lonhtmlcommon::get_date_from_form
525: ('startdate_'.$i);
526: my $endtime = &Apache::lonhtmlcommon::get_date_from_form
527: ('enddate_'.$i);
528: if (! defined($starttime) || ! defined($endtime)) {
1.42 matthew 529: my $sec_in_day = 86400;
530: my $last_sub_time = &get_time_from_row($PerformanceData->[-1]);
531: my ($sday,$smon,$syear);
532: (undef,undef,undef,$sday,$smon,$syear) =
533: localtime($last_sub_time - $sec_in_day*$i);
534: $starttime = &Time::Local::timelocal(0,0,0,$sday,$smon,$syear);
535: $endtime = $starttime + $sec_in_day;
536: if ($i == ($num_plots -1 )) {
537: $starttime = &get_time_from_row($PerformanceData->[0]);
538: }
539: }
1.34 matthew 540: my $startdateform = &Apache::lonhtmlcommon::date_setter
541: ('Statistics','startdate_'.$i,$starttime);
542: my $enddateform = &Apache::lonhtmlcommon::date_setter
543: ('Statistics','enddate_'.$i,$endtime);
1.42 matthew 544: #
545: my $begin_index;
546: my $end_index;
547: my $j;
548: while (++$j < scalar(@$PerformanceData)) {
549: last if (&get_time_from_row($PerformanceData->[$j]) > $starttime);
550: }
551: $begin_index = $j;
552: while (++$j < scalar(@$PerformanceData)) {
553: last if (&get_time_from_row($PerformanceData->[$j]) > $endtime);
554: }
555: $end_index = $j;
556: ##
557: my $interval = {
558: begin_index => $begin_index,
559: end_index => $end_index,
560: startdateform => $startdateform,
561: enddateform => $enddateform,
562: };
563: if ($ENV{'form.AnalyzeAs'} eq 'Foils') {
564: $table .= &Foil_Time_Analysis($PerformanceData,$ORdata,$Foils,
565: $interval);
566: } else {
567: $table .= &Concept_Time_Analysis($PerformanceData,$ORdata,
568: $Concepts,$interval);
569: }
1.33 matthew 570: }
1.42 matthew 571: #
1.33 matthew 572: return $table;
573: }
574:
1.42 matthew 575: sub Foil_Time_Analysis {
576: my ($PerformanceData,$ORdata,$Foils,$interval) = @_;
577: my $analysis_html;
578: my $foilkey = &build_option_index($ORdata);
579: my ($begin_index,$end_index) = ($interval->{'begin_index'},
580: $interval->{'end_index'});
1.33 matthew 581: my %TimeData;
582: #
583: # Compute the number getting the foils correct or incorrects
1.42 matthew 584: for (my $j=$begin_index;$j<=$end_index;$j++) {
585: my $row = $PerformanceData->[$j];
1.33 matthew 586: next if (! defined($row));
1.42 matthew 587: my %Row = &Process_Row($row);
588: while (my ($foilid,$href) = each(%Row)) {
589: if (! ref($href)) {
590: $TimeData{$foilid} += $href;
591: next;
592: }
593: while (my ($option,$value) = each(%$href)) {
594: $TimeData{$foilid}->{$option}+=$value;
1.33 matthew 595: }
596: }
597: }
1.39 matthew 598: my @Plotdata;
1.42 matthew 599: foreach my $foil (@$Foils) {
600: my $total = $TimeData{$foil}->{'_total'};
601: if ($total == 0) {
602: push(@{$Plotdata[0]},0);
603: } else {
604: push(@{$Plotdata[0]},
605: 100 * $TimeData{$foil}->{'_correct'} / $total);
606: }
607: my $total_incorrect = $total - $TimeData{$foil}->{'_correct'};
608: my $optionidx = 1;
609: foreach my $option (@{$ORdata->{'Options'}}) {
610: if ($total_incorrect == 0) {
611: push(@{$Plotdata[$optionidx]},0);
612: } else {
613: push(@{$Plotdata[$optionidx]},
614: 100 * $TimeData{$foil}->{$option} / $total_incorrect);
1.37 matthew 615: }
1.42 matthew 616: } continue {
617: $optionidx++;
1.39 matthew 618: }
1.42 matthew 619: }
620: #
621: # Create the plot
622: my $count = $end_index-$begin_index;
623: my $title;
624: if ($count == 0) {
625: $title = 'no submissions';
626: } elsif ($count == 1) {
627: $title = 'one submission';
1.39 matthew 628: } else {
1.42 matthew 629: $title = $count.' submissions';
630: }
631: my $correctplot = &Apache::loncommon::DrawGraph($title,
632: 'Foil Number',
633: 'Percent Correct',
634: 100,
635: $plotcolors,
636: $Plotdata[0]);
637: for (my $j=0; $j< scalar(@{$Plotdata[0]});$j++) {
638: $Plotdata[0]->[$j]=0;
639: }
640: $count = $end_index-$begin_index-$TimeData{'_correct'};
641: if ($count == 0) {
642: $title = 'no submissions';
643: } elsif ($count == 1) {
644: $title = 'one submission';
645: } else {
646: $title = $count.' submissions';
647: }
648: my $incorrectplot = &Apache::loncommon::DrawGraph($title,
649: 'Foil Number',
650: 'Incorrect Option Choice',
651: 100,
652: $plotcolors,
653: @Plotdata);
654: $analysis_html.='<tr>'.
655: '<td>'.$correctplot.'</td>'.
656: '<td>'.$incorrectplot.'</td>'.
657: '<td align="left" valign="top">'.$foilkey.'</td>'."</tr>\n";
658: $analysis_html.= '<tr>'.'<td colspan="3">'.
659: '<b>Start Time</b>:'.
660: ' '.$interval->{'startdateform'}.'<br />'.
661: '<b>End Time</b> : '.
662: ' '.$interval->{'enddateform'}.'<br />'.
663: # '<b>Plot Title</b> :'.
664: # (" "x3).$interval->{'titleform'}.
665: '</td>'.
666: "</tr>\n";
667: return $analysis_html;
668: }
669:
670: sub Concept_Time_Analysis {
671: my ($PerformanceData,$ORdata,$Concepts,$interval) = @_;
672: my $analysis_html;
673: ##
674: ## Determine starttime, endtime, startindex, endindex
675: my ($begin_index,$end_index) = ($interval->{'begin_index'},
676: $interval->{'end_index'});
677: my %TimeData;
678: #
679: # Compute the number getting the foils correct or incorrects
680: for (my $j=$begin_index;$j<=$end_index;$j++) {
681: my $row = $PerformanceData->[$j];
682: next if (! defined($row));
683: my %Row = &Process_Row($row);
684: while (my ($foilid,$href) = each(%Row)) {
685: if (! ref($href)) {
686: $TimeData{$foilid} += $href;
687: next;
1.37 matthew 688: }
1.42 matthew 689: while (my ($option,$value) = each(%$href)) {
690: $TimeData{$foilid}->{$option}+=$value;
1.37 matthew 691: }
1.33 matthew 692: }
693: }
694: #
1.42 matthew 695: # Put the data in plottable form
696: my @Plotdata;
697: foreach my $concept (@$Concepts) {
698: my ($total,$correct);
699: foreach my $foil (@{$concept->{'foils'}}) {
700: $total += $TimeData{$foil}->{'_total'};
701: $correct += $TimeData{$foil}->{'_correct'};
702: }
703: if ($total == 0) {
704: push(@Plotdata,0);
705: } else {
706: push(@Plotdata,100 * $correct / $total);
707: }
708: }
709: #
1.33 matthew 710: # Create the plot
1.42 matthew 711: my $title = ($end_index - $begin_index).' submissions';
712: my $correctplot = &Apache::loncommon::DrawGraph($title,
713: 'Concept Number',
714: 'Percent Correct',
715: 100,
716: $plotcolors,
717: \@Plotdata);
718: $analysis_html.='<tr>'.
719: '<td>'.$correctplot.'</td>'.
720: '<td align="left" valign="top">'.
721: '<b>Start Time</b>: '.$interval->{'startdateform'}.'<br />'.
722: '<b>End Time</b> : '.
723: ' '.$interval->{'enddateform'}.'<br />'.
724: # '<b>Plot Title</b> :'.(" "x3).
725: # $interval->{'titleform'}.
726: '</td>'.
727: "</tr>\n";
728: return $analysis_html;
729: }
730:
731: #########################################################
732: #########################################################
733: ##
734: ## Excel output
735: ##
736: #########################################################
737: #########################################################
1.43 ! matthew 738:
1.42 matthew 739: sub prepare_excel_sheet {
1.43 ! matthew 740: my ($r,$resource,$PerformanceData,$ORdata) = @_;
! 741: my $response = '<h2>'.&mt('Excel Spreadsheet Creation').'</h2>';
1.42 matthew 742: my (undef,$Foils,$Concepts) = &build_foil_index($ORdata);
1.43 ! matthew 743: #
! 744: # Create excel worksheet
! 745: my $filename = '/prtspool/'.
! 746: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
! 747: time.'_'.rand(1000000000).'.xls';
! 748: my $workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
! 749: if (! defined($workbook)) {
! 750: $r->log_error("Error creating excel spreadsheet $filename: $!");
! 751: $r->print('<p>'.&mt("Unable to create new Excel file. ".
! 752: "This error has been logged. ".
! 753: "Please alert your LON-CAPA administrator").
! 754: '</p>');
! 755: return undef;
! 756: }
! 757: #
! 758: $workbook->set_tempdir('/home/httpd/perl/tmp');
! 759: #
! 760: # Define some potentially useful formats
! 761: my $format;
! 762: $format->{'header'} = $workbook->add_format(bold => 1,
! 763: bottom => 1,
! 764: # text_wrap => 1,
! 765: align => 'center');
! 766: $format->{'bold'} = $workbook->add_format(bold=>1);
! 767: $format->{'h1'} = $workbook->add_format(bold=>1, size=>18);
! 768: $format->{'h2'} = $workbook->add_format(bold=>1, size=>16);
! 769: $format->{'h3'} = $workbook->add_format(bold=>1, size=>14);
! 770: $format->{'date'} = $workbook->add_format(num_format=>
! 771: 'mmm d yyyy hh:mm AM/PM');
! 772: #
! 773: # Create and populate main worksheets
! 774: my $problem_data_sheet = $workbook->addworksheet('Problem Data');
! 775: my $student_data_sheet = $workbook->addworksheet('Student Data');
! 776: my $response_data_sheet = $workbook->addworksheet('Response Data');
! 777: foreach my $sheet ($problem_data_sheet,$student_data_sheet,
! 778: $response_data_sheet) {
! 779: $sheet->write(0,0,$resource->{'title'},$format->{'h2'});
! 780: $sheet->write(1,0,$resource->{'src'},$format->{'h3'});
! 781: }
! 782: #
! 783: my $result;
! 784: $result = &build_problem_data_worksheet($problem_data_sheet,$format,
! 785: $Concepts,$ORdata);
! 786: if ($result ne 'okay') {
! 787: # Do something useful
! 788: }
! 789: $result = &build_student_data_worksheet($student_data_sheet,$format);
! 790: if ($result ne 'okay') {
! 791: # Do something useful
! 792: }
! 793: $result = &build_response_data_worksheet($response_data_sheet,$format,
! 794: $PerformanceData,$Foils,
! 795: $ORdata);
! 796: if ($result ne 'okay') {
! 797: # Do something useful
! 798: }
! 799: $response_data_sheet->activate();
! 800: #
! 801: # Close the excel file
! 802: $workbook->close();
! 803: #
! 804: # Write a link to allow them to download it
! 805: $result .= '<br />'.
! 806: '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n";
! 807: return $result;
! 808: }
! 809:
! 810: sub build_problem_data_worksheet {
! 811: my ($worksheet,$format,$Concepts,$ORdata) = @_;
! 812: my $rows_output = 3;
! 813: my $cols_output = 0;
! 814: $worksheet->write($rows_output++,0,'Problem Structure',$format->{'h3'});
! 815: ##
! 816: ##
! 817: my @Headers;
! 818: if (@$Concepts > 1) {
! 819: @Headers = ("Concept\nNumber",'Concept',"Foil\nNumber",
! 820: 'Foil Name','Foil Text','Correct value');
! 821: } else {
! 822: @Headers = ('Foil Number','FoilName','Foil Text','Correct value');
! 823: }
! 824: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
! 825: my %Foildata = %{$ORdata->{'Foils'}};
! 826: my $conceptindex = 1;
! 827: my $foilindex = 1;
! 828: foreach my $concept (@$Concepts) {
! 829: my @FoilsInConcept = @{$concept->{'foils'}};
! 830: my $firstfoil = shift(@FoilsInConcept);
! 831: if (@$Concepts > 1) {
! 832: $worksheet->write_row($rows_output++,0,
! 833: [$conceptindex,
! 834: $concept->{'name'},
! 835: $foilindex++,
! 836: $Foildata{$firstfoil}->{'name'},
! 837: $Foildata{$firstfoil}->{'text'},
! 838: $Foildata{$firstfoil}->{'value'},]);
! 839: } else {
! 840: $worksheet->write_row($rows_output++,0,
! 841: [ $foilindex++,
! 842: $Foildata{$firstfoil}->{'name'},
! 843: $Foildata{$firstfoil}->{'text'},
! 844: $Foildata{$firstfoil}->{'value'},]);
! 845: }
! 846: foreach my $foilid (@FoilsInConcept) {
! 847: if (@$Concepts > 1) {
! 848: $worksheet->write_row($rows_output++,0,
! 849: ['',
! 850: '',
! 851: $foilindex,
! 852: $Foildata{$foilid}->{'name'},
! 853: $Foildata{$foilid}->{'text'},
! 854: $Foildata{$foilid}->{'value'},]);
! 855: } else {
! 856: $worksheet->write_row($rows_output++,0,
! 857: [$foilindex,
! 858: $Foildata{$foilid}->{'name'},
! 859: $Foildata{$foilid}->{'text'},
! 860: $Foildata{$foilid}->{'value'},]);
! 861: }
! 862: } continue {
! 863: $foilindex++;
! 864: }
! 865: } continue {
! 866: $conceptindex++;
! 867: }
! 868: $rows_output++;
! 869: $rows_output++;
! 870: ##
! 871: ## Option data output
! 872: $worksheet->write($rows_output++,0,'Options',$format->{'header'});
! 873: foreach my $string (@{$ORdata->{'Options'}}) {
! 874: $worksheet->write($rows_output++,0,$string);
! 875: }
! 876: return 'okay';
! 877: }
! 878:
! 879: sub build_student_data_worksheet {
! 880: my ($worksheet,$format) = @_;
! 881: my $rows_output = 3;
! 882: my $cols_output = 0;
! 883: $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
! 884: my @Headers = ('full name','username','domain','section',
! 885: "student\nnumber",'identifier');
! 886: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
! 887: my @Students = @Apache::lonstatistics::Students;
! 888: my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
! 889: my %ids;
! 890: foreach my $row (@$studentrows) {
! 891: my ($mysqlid,$student) = @$row;
! 892: $ids{$student}=$mysqlid;
! 893: }
! 894: foreach my $student (@Students) {
! 895: my $name_domain = $student->{'username'}.':'.$student->{'domain'};
! 896: $worksheet->write_row($rows_output++,0,
! 897: [$student->{'fullname'},
! 898: $student->{'username'},$student->{'domain'},
! 899: $student->{'section'},$student->{'id'},
! 900: $ids{$name_domain}]);
! 901: }
! 902: return;
! 903: }
! 904:
! 905: sub build_response_data_worksheet {
! 906: my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
! 907: my $rows_output = 3;
! 908: my $cols_output = 0;
! 909: $worksheet->write($rows_output++,0,'Response Data',$format->{'h3'});
! 910: $worksheet->set_column(1,1,20);
! 911: $worksheet->set_column(2,2,13);
! 912: my @Headers = ('identifier','time','award detail','attempt');
! 913: foreach my $foil (@$Foils) {
! 914: push (@Headers,$foil.' submission');
! 915: push (@Headers,$foil.' grading');
! 916: }
! 917: $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
! 918: #
! 919: foreach my $row (@$PerformanceData) {
! 920: next if (! defined($row));
! 921: my ($student,$award,$grading,$submission,$time,$tries) = @$row;
! 922: my @Foilgrades = split('&',$grading);
! 923: my @Foilsubs = split('&',$submission);
! 924: my %ResponseData;
! 925: for (my $j=0;$j<=$#Foilgrades;$j++) {
! 926: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
! 927: my (undef,$submission) = split('=',$Foilsubs[$j]);
! 928: $submission = &Apache::lonnet::unescape($submission);
! 929: $ResponseData{$foilid.' submission'}=$submission;
! 930: $ResponseData{$foilid.' award'}=$correct;
! 931: }
! 932: $worksheet->write($rows_output,$cols_output++,$student);
! 933: $worksheet->write($rows_output,$cols_output++,
! 934: &calc_serial($time),$format->{'date'});
! 935: $worksheet->write($rows_output,$cols_output++,$award);
! 936: $worksheet->write($rows_output,$cols_output++,$tries);
! 937: foreach my $foilid (@$Foils) {
! 938: $worksheet->write($rows_output,$cols_output++,
! 939: $ResponseData{$foilid.' submission'});
! 940: $worksheet->write($rows_output,$cols_output++,
! 941: $ResponseData{$foilid.' award'});
! 942: }
! 943: $rows_output++;
! 944: $cols_output = 0;
! 945: }
! 946: return;
1.42 matthew 947: }
948:
1.43 ! matthew 949:
! 950: ##
! 951: ## The following is copied from datecalc1.pl, part of the
! 952: ## Spreadsheet::WriteExcel CPAN module.
! 953: ##
! 954: ##
! 955: ######################################################################
! 956: #
! 957: # Demonstration of writing date/time cells to Excel spreadsheets,
! 958: # using UNIX/Perl time as source of date/time.
! 959: #
! 960: # Copyright 2000, Andrew Benham, adsb@bigfoot.com
! 961: #
! 962: ######################################################################
! 963: #
! 964: # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)
! 965: # measured in seconds.
! 966: #
! 967: # An Excel file can use exactly one of two different date/time systems.
! 968: # In these systems, a floating point number represents the number of days
! 969: # (and fractional parts of the day) since a start point. The floating point
! 970: # number is referred to as a 'serial'.
! 971: # The two systems ('1900' and '1904') use different starting points:
! 972: # '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as
! 973: # a leap year - see:
! 974: # http://support.microsoft.com/support/kb/articles/Q181/3/70.asp
! 975: # for the excuse^H^H^H^H^H^Hreason.
! 976: # '1904'; '1.00' is 2 Jan 1904.
! 977: #
! 978: # The '1904' system is the default for Apple Macs. Windows versions of
! 979: # Excel have the option to use the '1904' system.
! 980: #
! 981: # Note that Visual Basic's "DateSerial" function does NOT erroneously
! 982: # regard 1900 as a leap year, and thus its serials do not agree with
! 983: # the 1900 serials of Excel for dates before 1 Mar 1900.
! 984: #
! 985: # Note that StarOffice (at least at version 5.2) does NOT erroneously
! 986: # regard 1900 as a leap year, and thus its serials do not agree with
! 987: # the 1900 serials of Excel for dates before 1 Mar 1900.
! 988: #
! 989: ######################################################################
! 990: #
! 991: # Calculation description
! 992: # =======================
! 993: #
! 994: # 1900 system
! 995: # -----------
! 996: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.
! 997: # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
! 998: # were leap years with an extra day.
! 999: # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and
! 1000: # 1 Jan 1970.
! 1001: # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year
! 1002: # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.
! 1003: #
! 1004: # 1904 system
! 1005: # -----------
! 1006: # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.
! 1007: # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)
! 1008: # were leap years with an extra day.
! 1009: # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and
! 1010: # 1 Jan 1970.
! 1011: # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.
! 1012: #
! 1013: ######################################################################
! 1014: #
! 1015: # Copyright (c) 2000, Andrew Benham.
! 1016: # This program is free software. It may be used, redistributed and/or
! 1017: # modified under the same terms as Perl itself.
! 1018: #
! 1019: # Andrew Benham, adsb@bigfoot.com
! 1020: # London, United Kingdom
! 1021: # 11 Nov 2000
! 1022: #
! 1023: ######################################################################
! 1024:
! 1025: # Use 1900 date system on all platforms other than Apple Mac (for which
! 1026: # use 1904 date system).
! 1027: my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;
! 1028:
! 1029: #-----------------------------------------------------------
! 1030: # calc_serial()
! 1031: #
! 1032: # Called with (up to) 2 parameters.
! 1033: # 1. Unix timestamp. If omitted, uses current time.
! 1034: # 2. GMT flag. Set to '1' to return serial in GMT.
! 1035: # If omitted, returns serial in appropriate timezone.
! 1036: #
! 1037: # Returns date/time serial according to $DATE_SYSTEM selected
! 1038: #-----------------------------------------------------------
! 1039: sub calc_serial {
! 1040: my $time = (defined $_[0]) ? $_[0] : time();
! 1041: my $gmtflag = (defined $_[1]) ? $_[1] : 0;
! 1042:
! 1043: # Divide timestamp by number of seconds in a day.
! 1044: # This gives a date serial with '0' on 1 Jan 1970.
! 1045: my $serial = $time / 86400;
! 1046:
! 1047: # Adjust the date serial by the offset appropriate to the
! 1048: # currently selected system (1900/1904).
! 1049: if ($DATE_SYSTEM == 0) { # use 1900 system
! 1050: $serial += 25569;
! 1051: } else { # use 1904 system
! 1052: $serial += 24107;
! 1053: }
! 1054:
! 1055: unless ($gmtflag) {
! 1056: # Now have a 'raw' serial with the right offset. But this
! 1057: # gives a serial in GMT, which is false unless the timezone
! 1058: # is GMT. We need to adjust the serial by the appropriate
! 1059: # timezone offset.
! 1060: # Calculate the appropriate timezone offset by seeing what
! 1061: # the differences between localtime and gmtime for the given
! 1062: # time are.
! 1063:
! 1064: my @gmtime = gmtime($time);
! 1065: my @ltime = localtime($time);
! 1066:
! 1067: # For the first 7 elements of the two arrays, adjust the
! 1068: # date serial where the elements differ.
! 1069: for (0 .. 6) {
! 1070: my $diff = $ltime[$_] - $gmtime[$_];
! 1071: if ($diff) {
! 1072: $serial += _adjustment($diff,$_);
! 1073: }
! 1074: }
! 1075: }
! 1076:
! 1077: # Perpetuate the error that 1900 was a leap year by decrementing
! 1078: # the serial if we're using the 1900 system and the date is prior to
! 1079: # 1 Mar 1900. This has the effect of making serial value '60'
! 1080: # 29 Feb 1900.
! 1081:
! 1082: # This fix only has any effect if UNIX/Perl time on the platform
! 1083: # can represent 1900. Many can't.
! 1084:
! 1085: unless ($DATE_SYSTEM) {
! 1086: $serial-- if ($serial < 61); # '61' is 1 Mar 1900
! 1087: }
! 1088: return $serial;
! 1089: }
! 1090:
! 1091: sub _adjustment {
! 1092: # Based on the difference in the localtime/gmtime array elements
! 1093: # number, return the adjustment required to the serial.
! 1094:
! 1095: # We only look at some elements of the localtime/gmtime arrays:
! 1096: # seconds unlikely to be different as all known timezones
! 1097: # have an offset of integral multiples of 15 minutes,
! 1098: # but it's easy to do.
! 1099: # minutes will be different for timezone offsets which are
! 1100: # not an exact number of hours.
! 1101: # hours very likely to be different.
! 1102: # weekday will differ when localtime/gmtime difference
! 1103: # straddles midnight.
! 1104: #
! 1105: # Assume that difference between localtime and gmtime is less than
! 1106: # 5 days, then don't have to do maths for day of month, month number,
! 1107: # year number, etc...
! 1108:
! 1109: my ($delta,$element) = @_;
! 1110: my $adjust = 0;
! 1111:
! 1112: if ($element == 0) { # Seconds
! 1113: $adjust = $delta/86400; # 60 * 60 * 24
! 1114: } elsif ($element == 1) { # Minutes
! 1115: $adjust = $delta/1440; # 60 * 24
! 1116: } elsif ($element == 2) { # Hours
! 1117: $adjust = $delta/24; # 24
! 1118: } elsif ($element == 6) { # Day of week number
! 1119: # Catch difference straddling Sat/Sun in either direction
! 1120: $delta += 7 if ($delta < -4);
! 1121: $delta -= 7 if ($delta > 4);
! 1122:
! 1123: $adjust = $delta;
! 1124: }
! 1125: return $adjust;
1.1 stredwic 1126: }
1127:
1.33 matthew 1128: #########################################################
1129: #########################################################
1130: ##
1131: ## Interface
1132: ##
1133: #########################################################
1134: #########################################################
1.23 matthew 1135: sub CreateInterface {
1.28 matthew 1136: ##
1137: ## Environment variable initialization
1.36 matthew 1138: if (! exists$ENV{'form.AnalyzeOver'}) {
1139: $ENV{'form.AnalyzeOver'} = 'Tries';
1.28 matthew 1140: }
1141: ##
1142: ## Build the menu
1.7 stredwic 1143: my $Str = '';
1.23 matthew 1144: $Str .= '<table cellspacing="5">'."\n";
1145: $Str .= '<tr>';
1146: $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
1147: $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
1.31 matthew 1148: # $Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
1149: $Str .= '<td align="center"> </td>';
1.23 matthew 1150: $Str .= '</tr>'."\n";
1.31 matthew 1151: ##
1152: ##
1.23 matthew 1153: $Str .= '<tr><td align="center">'."\n";
1154: $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
1.28 matthew 1155: $Str .= '</td>';
1156: #
1157: $Str .= '<td align="center">';
1.23 matthew 1158: $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
1.28 matthew 1159: $Str .= '</td>';
1160: #
1.31 matthew 1161: # $Str .= '<td align="center">';
1.23 matthew 1162: my $only_seq_with_assessments = sub {
1163: my $s=shift;
1164: if ($s->{'num_assess'} < 1) {
1165: return 0;
1166: } else {
1167: return 1;
1168: }
1169: };
1.31 matthew 1170: &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
1.23 matthew 1171: $only_seq_with_assessments);
1.36 matthew 1172: ##
1173: ##
1.28 matthew 1174: $Str .= '<td>';
1.36 matthew 1175: { # These braces are here to organize the code, not scope it.
1176: {
1177: $Str .= '<nobr>'.&mt('Analyze Over ');
1178: $Str .='<select name="AnalyzeOver" >';
1179: $Str .= '<option value="Tries" ';
1180: if (! exists($ENV{'form.AnalyzeOver'}) ||
1181: $ENV{'form.AnalyzeOver'} eq 'Tries'){
1182: # Default to Tries
1183: $Str .= ' selected ';
1184: }
1185: $Str .= '>'.&mt('Tries').'</option>';
1186: $Str .= '<option value="Time" ';
1187: $Str .= ' selected ' if ($ENV{'form.AnalyzeOver'} eq 'Time');
1188: $Str .= '>'.&mt('Time').'</option>';
1189: $Str .= '</select></nobr><br />';
1190: }
1191: {
1192: $Str .= '<nobr>'.&mt('Analyze as ');
1193: $Str .='<select name="AnalyzeAs" >';
1194: $Str .= '<option value="Concepts" ';
1195: if (! exists($ENV{'form.AnalyzeAs'}) ||
1196: $ENV{'form.AnalyzeAs'} eq 'Concepts'){
1197: # Default to Concepts
1198: $Str .= ' selected ';
1199: }
1200: $Str .= '>'.&mt('Concepts').'</option>';
1201: $Str .= '<option value="Foils" ';
1202: $Str .= ' selected ' if ($ENV{'form.AnalyzeAs'} eq 'Foils');
1203: $Str .= '>'.&mt('Foils').'</option>';
1204: $Str .= '</select></nobr><br />';
1205: }
1206: {
1207: $Str .= '<br /><nobr>'.&mt('Number of Plots:');
1208: $Str .= '<select name="NumPlots">';
1209: if (! exists($ENV{'form.NumPlots'})
1210: || $ENV{'form.NumPlots'} < 1
1211: || $ENV{'form.NumPlots'} > 20) {
1212: $ENV{'form.NumPlots'} = 5;
1213: }
1214: foreach my $i (1,2,3,4,5,6,7,8,10,15,20) {
1215: $Str .= '<option value="'.$i.'" ';
1216: if ($ENV{'form.NumPlots'} == $i) { $Str.=' selected '; }
1217: $Str .= '>'.$i.'</option>';
1218: }
1219: $Str .= '</select></nobr>';
1220: }
1.28 matthew 1221: }
1222: $Str .= '</td>';
1.36 matthew 1223: ##
1224: ##
1.28 matthew 1225: $Str .= '</tr>'."\n";
1.23 matthew 1226: $Str .= '</table>'."\n";
1.42 matthew 1227: return $Str;
1.23 matthew 1228: }
1229:
1230: sub OptionResponseProblemSelector {
1231: my $Str;
1232: $Str = "\n<table>\n";
1233: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1234: next if ($seq->{'num_assess'}<1);
1235: my $seq_str = '';
1236: foreach my $res (@{$seq->{'contents'}}) {
1.26 matthew 1237: next if ($res->{'type'} ne 'assessment');
1.23 matthew 1238: foreach my $part (@{$res->{'parts'}}) {
1239: my $partdata = $res->{'partdata'}->{$part};
1240: if (! exists($partdata->{'option'}) ||
1241: $partdata->{'option'} == 0) {
1242: next;
1243: }
1244: for (my $i=0;$i<scalar(@{$partdata->{'ResponseTypes'}});$i++){
1245: my $respid = $partdata->{'ResponseIds'}->[$i];
1246: my $resptype = $partdata->{'ResponseTypes'}->[$i];
1247: if ($resptype eq 'option') {
1.25 matthew 1248: my $value = &Apache::lonnet::escape($res->{'symb'}.':'.$part.':'.$respid);
1.23 matthew 1249: my $checked = '';
1250: if ($ENV{'form.problemchoice'} eq $value) {
1251: $checked = 'checked ';
1252: }
1253: $seq_str .= '<tr><td>'.
1254: '<input type="radio" name="problemchoice" value="'.$value.'" '.$checked.'/>'.
1255: '</td><td>'.
1256: '<a href="'.$res->{'src'}.'">'.$res->{'title'}.'</a> ';
1257: if ($partdata->{'option'} > 1) {
1258: $seq_str .= &mt('response').' '.$respid;
1259: }
1260: $seq_str .= "</td></tr>\n";
1.11 minaeibi 1261: }
1262: }
1263: }
1264: }
1.23 matthew 1265: if ($seq_str ne '') {
1266: $Str .= '<tr><td> </td><td><b>'.$seq->{'title'}.'</b></td>'.
1267: "</tr>\n".$seq_str;
1268: }
1.11 minaeibi 1269: }
1.23 matthew 1270: $Str .= "</table>\n";
1271: return $Str;
1.33 matthew 1272: }
1273:
1274: #########################################################
1275: #########################################################
1276: ##
1277: ## Misc functions
1278: ##
1279: #########################################################
1280: #########################################################
1281: sub get_problem_symb {
1282: my $problemstring = shift();
1283: my ($symb,$partid,$resid) = ($problemstring=~ /^(.*):([^:]*):([^:]*)$/);
1284: return ($symb,$partid,$resid);
1.11 minaeibi 1285: }
1286:
1.23 matthew 1287: sub get_resource_from_symb {
1288: my ($symb) = @_;
1289: foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
1290: foreach my $res (@{$seq->{'contents'}}) {
1291: if ($res->{'symb'} eq $symb) {
1292: return $res;
1.2 stredwic 1293: }
1.1 stredwic 1294: }
1295: }
1.23 matthew 1296: return undef;
1.42 matthew 1297: }
1298:
1299: sub get_time_from_row {
1300: my ($row) = @_;
1301: if (ref($row)) {
1302: return $row->[3];
1303: }
1304: return undef;
1305: }
1306:
1307: sub get_tries_from_row {
1308: my ($row) = @_;
1309: if (ref($row)) {
1.43 ! matthew 1310: return $row->[5];
1.42 matthew 1311: }
1312: return undef;
1313: }
1314:
1315: sub Process_Row {
1316: my ($row) = @_;
1317: my %RowData;
1.43 ! matthew 1318: my ($student_id,$award,$grading,$submission,$time,$tries) = @$row;
! 1319: return undef if ($award eq 'MISSING_ANSWER');
1.42 matthew 1320: if ($award =~ /(APPROX_ANS|EXACT_ANS)/) {
1321: $RowData{'_correct'} = 1;
1322: }
1323: $RowData{'_total'} = 1;
1324: my @Foilgrades = split('&',$grading);
1325: my @Foilsubs = split('&',$submission);
1326: for (my $j=0;$j<=$#Foilgrades;$j++) {
1327: my ($foilid,$correct) = split('=',$Foilgrades[$j]);
1328: my (undef,$submission) = split('=',$Foilsubs[$j]);
1329: if ($correct) {
1330: $RowData{$foilid}->{'_correct'}++;
1331: } else {
1332: $submission = &Apache::lonnet::unescape($submission);
1333: $RowData{$foilid}->{$submission}++;
1334: }
1335: $RowData{$foilid}->{'_total'}++;
1336: }
1337: return %RowData;
1.1 stredwic 1338: }
1339:
1.39 matthew 1340: ##
1341: ## get problem data and put it into a useful data structure.
1342: ## note: we must force each foil and option to not begin or end with
1343: ## spaces as they are stored without such data.
1344: ##
1.25 matthew 1345: sub get_problem_data {
1346: my ($url) = @_;
1347: my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));
1.23 matthew 1348: (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.25 matthew 1349: my %Answer;
1.23 matthew 1350: %Answer=&Apache::lonnet::str2hash($Answ);
1.25 matthew 1351: my %Partdata;
1352: foreach my $part (@{$Answer{'parts'}}) {
1353: while (my($key,$value) = each(%Answer)) {
1354: next if ($key !~ /^$part/);
1355: $key =~ s/^$part\.//;
1356: if (ref($value) eq 'ARRAY') {
1357: if ($key eq 'options') {
1358: $Partdata{$part}->{'Options'}=$value;
1359: } elsif ($key eq 'concepts') {
1360: $Partdata{$part}->{'Concepts'}=$value;
1361: } elsif ($key =~ /^concept\.(.*)$/) {
1362: my $concept = $1;
1363: foreach my $foil (@$value) {
1.36 matthew 1364: $Partdata{$part}->{'Foils'}->{$foil}->{'Concept'}=
1365: $concept;
1.25 matthew 1366: }
1367: }
1368: } else {
1369: if ($key=~ /^foil\.text\.(.*)$/) {
1370: my $foil = $1;
1.36 matthew 1371: $Partdata{$part}->{'Foils'}->{$foil}->{'name'}=$foil;
1.43 ! matthew 1372: $value =~ s/(\s*$|^\s*)//g;
1.36 matthew 1373: $Partdata{$part}->{'Foils'}->{$foil}->{'text'}=$value;
1.25 matthew 1374: } elsif ($key =~ /^foil\.value\.(.*)$/) {
1375: my $foil = $1;
1.36 matthew 1376: $Partdata{$part}->{'Foils'}->{$foil}->{'value'}=$value;
1.25 matthew 1377: }
1378: }
1379: }
1.23 matthew 1380: }
1.25 matthew 1381: return %Partdata;
1.1 stredwic 1382: }
1383:
1.23 matthew 1384: 1;
1.1 stredwic 1385:
1386: __END__
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