Annotation of loncom/interface/statistics/lonsubmissiontimeanalysis.pm, revision 1.35.2.1

1.1       matthew     1: # The LearningOnline Network with CAPA
                      2: #
1.35.2.1! raeburn     3: # $Id: lonsubmissiontimeanalysis.pm,v 1.35 2012/05/10 10:29:09 goltermann Exp $
1.1       matthew     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: 
                     28: package Apache::lonsubmissiontimeanalysis;
                     29: 
                     30: use strict;
1.23      albertel   31: use Apache::lonnet;
1.1       matthew    32: use Apache::loncommon();
                     33: use Apache::lonhtmlcommon();
                     34: use Apache::loncoursedata();
                     35: use Apache::lonstatistics;
1.10      matthew    36: use Apache::lonstathelpers;
1.1       matthew    37: use Apache::lonlocal;
                     38: use HTML::Entities();
                     39: use Time::Local();
                     40: 
                     41: my $plotcolors = ['#33ff00', 
                     42:                   '#ff33cc', '#990000', '#aaaa66', '#663399', '#ff9933',
                     43:                   '#66ccff', '#ff9999', '#cccc33', '#660000', '#33cc66',
                     44:                   ]; 
                     45: 
                     46: my @SubmitButtons = (
1.11      matthew    47:                      { name => 'PrevProblemAnalysis',
                     48:                        text => 'Previous Problem' },
                     49:                      { name => 'ProblemAnalysis',
1.1       matthew    50:                        text => 'Analyze Problem Again' },
1.11      matthew    51:                      { name => 'NextProblemAnalysis',
                     52:                        text => 'Next Problem' },
1.1       matthew    53:                      { name => 'SelectAnother',
1.11      matthew    54:                        text => 'Choose a different Problem' },
1.1       matthew    55:                      );
                     56: 
                     57: sub BuildSubmissionTimePage {
                     58:     my ($r,$c)=@_;
1.4       matthew    59:     #
                     60:     my %Saveable_Parameters = ('Status' => 'scalar',
                     61:                                'Section' => 'array');
                     62:     &Apache::loncommon::store_course_settings('submissiontime_analysis',
                     63:                                               \%Saveable_Parameters);
                     64:     &Apache::loncommon::restore_course_settings('submissiontime_analysis',
                     65:                                                 \%Saveable_Parameters);
                     66:     #
                     67:     &Apache::lonstatistics::PrepareClasslist();    
                     68:     #
1.32      www        69:     $r->print(&Apache::lonhtmlcommon::breadcrumbs('Submission Time Plots'));
1.1       matthew    70:     $r->print(&CreateInterface());
                     71:     #
                     72:     my @Students = @Apache::lonstatistics::Students;
                     73:     #
                     74:     if (@Students < 1) {
1.30      bisitz     75:         $r->print('<div class="LC_warning">'
                     76:                  .&mt('There are no students in the sections selected.'
                     77:                  .'</div>')
                     78:         );
1.1       matthew    79:     }
                     80:     #
1.15      matthew    81:     my @CacheButtonHTML = 
                     82:         &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
1.1       matthew    83:     $r->rflush();
                     84:     #
1.23      albertel   85:     if (! exists($env{'form.problemchoice'}) ||
                     86:         exists($env{'form.SelectAnother'})) {
1.24      matthew    87:         my $submit_button = '<input type="submit" name="" value="'.
1.30      bisitz     88: #           &mt('Graph Problem Submission Times').'" />';
                     89:             &mt('Generate Graph').'" />';
1.24      matthew    90:         $r->print($submit_button.'&nbsp;'x5);
1.1       matthew    91:         $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
1.24      matthew    92:         $r->print(&Apache::lonstathelpers::problem_selector('.',
                     93:                                                             $submit_button));
1.1       matthew    94:     } else {
                     95:         foreach my $button (@SubmitButtons) {
                     96:             $r->print('<input type="submit" name="'.$button->{'name'}.'" '.
                     97:                       'value="'.&mt($button->{'text'}).'" />');
                     98:             $r->print('&nbsp;'x5);
                     99:         }
1.15      matthew   100:         foreach my $html (@CacheButtonHTML) {
                    101:             $r->print($html.('&nbsp;'x5));
                    102:         }
                    103:         $r->rflush();
1.11      matthew   104:         #
                    105:         # Determine which problem we are to analyze
                    106:         my $current_problem = &Apache::lonstathelpers::get_target_from_id
1.23      albertel  107:             ($env{'form.problemchoice'});
1.11      matthew   108:         #
1.18      matthew   109:         my ($navmap,$prev,$curr,$next) = 
1.11      matthew   110:             &Apache::lonstathelpers::get_prev_curr_next($current_problem,
                    111:                                                         '.',
                    112:                                                         'part');
1.23      albertel  113:         if (exists($env{'form.PrevProblemAnalysis'}) && defined($prev)) {
1.11      matthew   114:             $current_problem = $prev;
1.23      albertel  115:         } elsif (exists($env{'form.NextProblemAnalysis'}) && defined($next)) {
1.11      matthew   116:             $current_problem = $next;
                    117:         } else {
                    118:             $current_problem = $curr;
                    119:         }
                    120:         #
                    121:         # Store the current problem choice and send it out in the form
1.23      albertel  122:         $env{'form.problemchoice'} = 
1.11      matthew   123:             &Apache::lonstathelpers::make_target_id($current_problem);
1.1       matthew   124:         $r->print('<input type="hidden" name="problemchoice" value="'.
1.23      albertel  125:                   $env{'form.problemchoice'}.'" />');
1.1       matthew   126:         #
                    127:         $r->print('<hr />');
                    128:         $r->rflush();
                    129:         #
1.11      matthew   130:         my $resource = $current_problem->{'resource'};
1.1       matthew   131:         if (! defined($resource)) {
1.30      bisitz    132:             $r->print('<div class="LC_warning">'
                    133:                      .&mt('Resource is undefined.')
                    134:                      .'</div>'
                    135:             );
1.1       matthew   136:         } else {
1.18      matthew   137:             $r->print('<h1>'.$resource->compTitle.'</h1>');
                    138:             $r->print('<h3>'.$resource->src.'</h3>');
1.34      golterma  139:             $r->print('<p>'.
1.22      matthew   140:                  &Apache::lonstatistics::section_and_enrollment_description().
1.34      golterma  141:                       '</p>');
1.1       matthew   142:             $r->rflush();
1.10      matthew   143:             $r->print(&Apache::lonstathelpers::render_resource($resource));
1.35      golterma  144:             $r->print('<br />');
1.1       matthew   145:             $r->rflush();
1.28      albertel  146: 	    if (@Students) {	    
                    147: 		$r->print(&analyze_times($r,$resource->symb,\@Students,
                    148: 					 $current_problem->{'part'}));
                    149: 	    }
1.1       matthew   150:         }
                    151:         $r->print('<hr />');
                    152:     }
                    153: }
                    154: 
                    155: #########################################################
                    156: #########################################################
                    157: ##
                    158: ##                  Time Analysis
                    159: ##
                    160: #########################################################
                    161: #########################################################
                    162: sub get_week_start {
                    163:     my ($randomtime) = @_;
                    164:     my ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) = 
                    165:         localtime($randomtime);
                    166:     $randomtime -= $wday * 86400;
                    167:     ($sec,$min,$hour,$mday,$month,$year,$wday,$yday,$isdst) = 
                    168:         localtime($randomtime);
                    169:     my $week_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
                    170:     return $week_start;
                    171: }
                    172: 
                    173: sub analyze_times {
1.18      matthew   174:     my ($r,$symb,$students,$part) = @_;
1.16      matthew   175:     my $htmltable;
1.2       matthew   176:     #
                    177:     # Convenience arrays
                    178:     my @FullWeekDay = (qw/Sunday Monday Tuesday Wednesday Thursday Friday
                    179:                        Saturday/);
                    180:     my @WeekDay = (qw/SUN MON TUE WED THU FRI SAT SUN/);
                    181:     my @Month = (qw/Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec/);
                    182:     #
1.1       matthew   183:     my $html; # holds results of analysis
                    184:     # Get the data
                    185:     my $SubData = &Apache::loncoursedata::get_response_time_data
1.22      matthew   186:         ([&Apache::lonstatistics::get_selected_sections()],
1.26      raeburn   187:          [&Apache::lonstatistics::get_selected_groups()],
1.18      matthew   188:          $Apache::lonstatistics::enrollment_status,
                    189:          $symb,$part);
1.1       matthew   190:     if (! defined($SubData) || ! ref($SubData)) {
1.30      bisitz    191:         $html.= '<div class="LC_warning">'
                    192:                .&mt('There is no submission data for this problem at all.')
                    193:                .'</div>';
1.1       matthew   194:         return $html;
                    195:     }
                    196:     my $NumSub = scalar(@{$SubData});
                    197:     if (! @{$SubData}) {
1.30      bisitz    198:         $html.= '<div class="LC_warning">'
                    199:                .&mt('There is no submission data for this problem.')
                    200:                .'</div>';
1.1       matthew   201:         return $html;
                    202:     }
                    203:     # Process the data
                    204:     #
                    205:     my (undef,undef,undef,$mday,$month,$year,$wday,$yday,$isdst) = 
                    206:         localtime(&get_time_from_row($SubData->[0]));
                    207:     my $day_start = &Time::Local::timelocal(0,0,0,$mday,$month,$year);
                    208:     #
1.2       matthew   209:     # Configure the bins used to store the data.
1.1       matthew   210:     my $binsize = 3600; # seconds
                    211:     my $bins_per_day = 86400/$binsize;
                    212:     my $bincount = 0;
                    213:     my $endtime = $day_start;
                    214:     #
1.2       matthew   215:     # Initialize loop variables
1.17      matthew   216:     my $max;            # The sum of @Ydata
                    217:     my @Ydata=(0);      # number of submissions
                    218:     my @AnsData=(0);    # number of correct submissions
                    219:     my @Xlabel=($WeekDay[$wday]); # Labels of itmes
                    220:     my @BinEnd;                   # The end time of each bin
                    221:     my $cumulative_answers = 0;   # The sum of @AnsData
1.19      matthew   222:     my %students;       # which students have attempted the problem?
1.2       matthew   223:     #
1.1       matthew   224:     foreach my $row (@$SubData) {
                    225:         my $subtime = &get_time_from_row($row);
                    226:         while ($subtime > $endtime && $endtime < time) {
                    227:             # Create a new bin
                    228:             $bincount++;
1.17      matthew   229:             $Ydata[$bincount]   = 0;
                    230:             $AnsData[$bincount] = 0;
1.1       matthew   231:             $endtime += $binsize;
1.16      matthew   232:             push(@BinEnd,$endtime);
1.1       matthew   233:             if ($bincount % (86400/$binsize) == 0) {
1.2       matthew   234:                 $wday++;
1.1       matthew   235:                 $wday %= 7;
1.2       matthew   236:                 $Xlabel[$bincount] = $WeekDay[$wday];
1.1       matthew   237:             } else {
                    238:                 $Xlabel[$bincount] = '';
                    239:             }
                    240:         }
                    241:         $Ydata[$bincount]++;
                    242:         $max = $Ydata[$bincount] if ($max < $Ydata[$bincount]);
                    243:         $AnsData[$bincount] += &successful_submission($row);
                    244:         $cumulative_answers += &successful_submission($row);
1.19      matthew   245:         $students{$row->[&Apache::loncoursedata::RT_student_id()]}++;
1.1       matthew   246:     }
1.17      matthew   247:     #
                    248:     # Pad the data to a full day
1.1       matthew   249:     while ($bincount % $bins_per_day != 0) {
                    250:         $bincount++;
                    251:         $Ydata[$bincount]=0;
1.17      matthew   252:         $AnsData[$bincount]=0;
1.1       matthew   253:         $endtime += $binsize;
1.17      matthew   254:         push(@BinEnd,$endtime);
1.1       matthew   255:         if ($bincount % (86400/$binsize) == 0) {
1.2       matthew   256:             $wday ++;
                    257:             $wday %= 7;
1.1       matthew   258:             $Xlabel[$bincount] = $WeekDay[$wday];
                    259:         } else {
                    260:             $Xlabel[$bincount] = '';
                    261:         }
                    262:     }
1.19      matthew   263:     my $numstudents = scalar(keys(%students));
1.17      matthew   264:     #
                    265:     # Determine a nice maximum value to use
                    266:     foreach my $maximum (10,15,20,25,30,40,50,60,70,80,90,100,
                    267:                           120,150,200,250,300,350,400,450,500,
                    268:                           600,700,800,900,1000,1100,1200,1500,2000,
                    269:                           2500,3000,4000,5000) {
                    270:         if ($max < $maximum) {
                    271:             $max = $maximum;
                    272:             last;
                    273:         }
                    274:     }
                    275:     #
                    276:     # Build the data table
1.35      golterma  277:     $htmltable = '<br><h3>'.&mt('Student submission data').'</h3><p>'.
1.34      golterma  278:         &Apache::loncommon::start_data_table().
                    279:         &Apache::loncommon::start_data_table_header_row().
                    280:         &Apache::loncommon::start_data_table_row().
1.17      matthew   281:         '<th valign="bottom">'.&mt('Begin').'</th>'.
                    282:         '<th valign="bottom">'.&mt('End').'</th>'.
1.20      matthew   283:         '<th valign="bottom">'.&mt('Submissions (plotted)').'</th>'.
                    284:         '<th valign="bottom">'.&mt('Correct Submissions (not plotted)').'</th>'.
                    285:         '<th valign="bottom">'.&mt('Cumulative Correct of those attempting the problem (not plotted)').'</th>'.
                    286:         '<th valign="bottom">'.&mt('Cumulative Percent Correct of those attempting the problem (not plotted)').'</th>'.
                    287:         '<th valign="bottom">'.&mt('Cumulative Percent Correct of selected students (plotted)').'</th>'.
1.34      golterma  288:         &Apache::loncommon::end_data_table_row().
                    289:         &Apache::loncommon::end_data_table_header_row().
1.16      matthew   290:         '<tbody>';
1.17      matthew   291:     my @CumulativeCorrect=(0);
1.20      matthew   292:     my @corr_as_percent_of_selected;
                    293:     my @corr_as_percent_of_answering;
1.17      matthew   294:     for (my $i=0;$i<=$#Ydata;$i++) {
                    295:         $CumulativeCorrect[$i]=$CumulativeCorrect[-1]+$AnsData[$i];
1.20      matthew   296:         $corr_as_percent_of_answering[$i] = 
                    297:             sprintf('%3.1f',100*$CumulativeCorrect[$i]/$numstudents);
                    298:         $corr_as_percent_of_selected[$i] = 
                    299:             sprintf('%3.1f',100*$CumulativeCorrect[$i]/scalar(@$students));
1.16      matthew   300:         if ($Ydata[$i] != 0) {
                    301:             next if (! defined($BinEnd[$i]) || $BinEnd[$i] == 0);
1.34      golterma  302:             $htmltable .=
                    303:                &Apache::loncommon::start_data_table_row().
1.31      bisitz    304:                 '<td align="right"><span class="LC_nobreak">'.
1.16      matthew   305:                 &Apache::lonlocal::locallocaltime($BinEnd[$i]-$binsize).
1.31      bisitz    306:                 '</span></td>'.
                    307:                 '<td align="right"><span class="LC_nobreak">'.
1.16      matthew   308:                     &Apache::lonlocal::locallocaltime($BinEnd[$i]).'</td>'.
1.31      bisitz    309:                 '</span></td>'.
1.16      matthew   310:                 '<td align="right">'.$Ydata[$i].('&nbsp;'x3).'</td>'.
1.17      matthew   311:                 '<td align="right">'.$AnsData[$i].('&nbsp;'x3).'</td>'.
1.19      matthew   312:                 '<td align="right">'.$CumulativeCorrect[$i].'</td>'.
1.20      matthew   313:                 '<td align="right">'.$corr_as_percent_of_answering[$i].'</td>'.
                    314:                 '<td align="right">'.$corr_as_percent_of_selected[$i].'</td>'.
1.34      golterma  315:                &Apache::loncommon::end_data_table_row().$/;
1.16      matthew   316:         }
1.6       matthew   317:     }
1.34      golterma  318:     $htmltable .= '</tbody>'.&Apache::loncommon::end_data_table().'</p>';
1.17      matthew   319:     #
                    320:     # Build the plot
                    321:     my $title = '';#'Number of Submissions and Number Correct';
1.1       matthew   322:     my $xlabel;
1.2       matthew   323:     (undef,undef,undef,$mday,$month,$year,$wday) = localtime($day_start);
                    324:     $xlabel .= $FullWeekDay[$wday].' '.
                    325:         join(' ',($Month[$month],$mday,1900+$year)).' - ';
                    326:     (undef,undef,undef,$mday,$month,$year,$wday) = localtime($endtime);
                    327:     $xlabel .= $FullWeekDay[$wday].' '.
                    328:         join(' ',($Month[$month],$mday,1900+$year));
1.8       matthew   329:     my $width = 50+2*$bincount;
                    330:     if ($width < 250) {
                    331:         $width = 250;
                    332:     }
1.17      matthew   333:     #
1.1       matthew   334:     $html .= &Apache::loncommon::DrawXYYGraph($title,
                    335:                                               $xlabel,
1.6       matthew   336:                                               'Submissions vs Time',
1.1       matthew   337:                                               $plotcolors,
                    338:                                               \@Xlabel,
1.17      matthew   339:                                               \@Ydata,0,$max,
1.20      matthew   340:                                               \@corr_as_percent_of_selected,0,100,
1.1       matthew   341:                                               (xskip => $bins_per_day,
                    342:                                                x_ticks => $bins_per_day,
                    343:                                                x_tick_offset => $bins_per_day,
1.8       matthew   344:                                                width => $width,
1.7       matthew   345:                       y1_label=>'Number of Submissions per hour',
                    346:                       y2_label=>'Percent of Students answering Correctly',
                    347:                      'data.1.label'=>'Submissions per hour',
                    348:                      'data.2.label'=>'Percent correct',
                    349:                                                )
1.1       matthew   350:                                               );
1.16      matthew   351:     $html .= '<br />'.$htmltable;
1.1       matthew   352:     return $html;
                    353: }
                    354: 
                    355: sub successful_submission {
                    356:     my ($row) = @_;
                    357:     if (ref($row) eq 'ARRAY') {
1.3       matthew   358:         return $row->[&Apache::loncoursedata::RT_awarded()];
1.1       matthew   359:     }
                    360:     return undef;
                    361: }
                    362: 
                    363: sub get_time_from_row {
                    364:     my ($row) = @_;
                    365:     if (ref($row) eq 'ARRAY') {
1.3       matthew   366:         return $row->[&Apache::loncoursedata::RT_timestamp()];
1.1       matthew   367:     } 
                    368:     return undef;
                    369: }
                    370: 
                    371: sub get_tries_from_row {
                    372:     my ($row) = @_;
                    373:     if (ref($row) eq 'ARRAY') {
1.3       matthew   374:         return $row->[&Apache::loncoursedata::RT_tries()];
1.1       matthew   375:     }
                    376:     return undef;
                    377: }
                    378: 
                    379: sub Process_Row {
                    380:     my ($row) = @_;
                    381:     my %RowData;
                    382:     my ($student_id,$award,$tries,$time) = @$row;
                    383:     return %RowData;
                    384: }
                    385: 
                    386: #########################################################
                    387: #########################################################
                    388: ##
                    389: ##   Generic Interface Routines
                    390: ##
                    391: #########################################################
                    392: #########################################################
                    393: sub CreateInterface {
                    394:     ##
                    395:     ## Environment variable initialization
1.23      albertel  396:     if (! exists$env{'form.AnalyzeOver'}) {
                    397:         $env{'form.AnalyzeOver'} = 'Tries';
1.1       matthew   398:     }
                    399:     ##
                    400:     ## Build the menu
                    401:     my $Str = '';
1.15      matthew   402:     $Str .= '<p>';
1.30      bisitz    403:     $Str .= &Apache::loncommon::start_data_table();
                    404:     $Str .= &Apache::loncommon::start_data_table_header_row();
                    405:     $Str .= '<th>'.&mt('Sections').'</th>';
                    406:     $Str .= '<th>'.&mt('Groups').'</th>';
                    407:     $Str .= '<th>'.&mt('Access Status').'</th>';
                    408:     $Str .= &Apache::loncommon::end_data_table_header_row();
1.1       matthew   409:     ##
                    410:     ## 
1.30      bisitz    411:     $Str .= &Apache::loncommon::start_data_table_row();
                    412:     $Str .= '<td align="center">'."\n";
1.16      matthew   413:     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',4);
1.1       matthew   414:     $Str .= '</td>';
                    415:     #
1.26      raeburn   416:     $Str .= '<td align="center">'."\n";
                    417:     $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',4);
                    418:     $Str .= '</td>';
                    419:     #
1.1       matthew   420:     $Str .= '<td align="center">';
1.16      matthew   421:     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,4);
1.1       matthew   422:     $Str .= '</td>';
1.16      matthew   423:     #
1.30      bisitz    424:     $Str .= &Apache::loncommon::end_data_table_row();
                    425:     $Str .= &Apache::loncommon::end_data_table();
1.1       matthew   426:     #
1.29      bisitz    427:     $Str .= '</p>';
1.1       matthew   428:     ##
                    429:     return $Str;
                    430: }
                    431: 
                    432: 1;
                    433: 
                    434: __END__

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