Annotation of loncom/interface/lonstatistics.pm, revision 1.27
1.1 albertel 1: # The LearningOnline Network with CAPA
2: # (Publication Handler
3: #
1.27 ! stredwic 4: # $Id: lonstatistics.pm,v 1.26 2002/05/31 16:02:11 minaeibi Exp $
1.1 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # (Navigate problems for statistical reports
29: # YEAR=2001
1.15 minaeibi 30: # 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
1.14 minaeibi 31: # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
1.1 albertel 32: # YEAR=2002
1.18 minaeibi 33: # 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
1.21 minaeibi 34: # 5/12,5/14,5/15,5/19,5/26 Behrouz Minaei
1.14 minaeibi 35: #
1.1 albertel 36: ###
37:
1.3 minaeibi 38: package Apache::lonstatistics;
1.1 albertel 39:
1.15 minaeibi 40: use strict;
1.1 albertel 41: use Apache::Constants qw(:common :http);
42: use Apache::lonnet();
43: use Apache::lonhomework;
1.12 minaeibi 44: use Apache::loncommon;
1.27 ! stredwic 45: use Apache::loncoursedata;
1.1 albertel 46: use HTML::TokeParser;
47: use GDBM_File;
48:
49: # -------------------------------------------------------------- Module Globals
50: my %hash;
51: my %CachData;
52: my %GraphDat;
1.5 minaeibi 53: my %mapsort;
1.1 albertel 54: my $Pos;
55: my $r;
56: my $GData;
1.25 minaeibi 57: my %color;
1.15 minaeibi 58: my %foil_to_concept;
59: my @Concepts;
60: my %ConceptData;
1.18 minaeibi 61: my %Answer = ();
1.15 minaeibi 62:
1.21 minaeibi 63: sub Activity {
1.26 minaeibi 64: my $file="/home/minaeibi/activity.log";
65: my $userid='adamsde1';
1.21 minaeibi 66: $r->print("<br>Using $file");
67: $r->rflush();
68: open(FILEID, "<$file");
69: my $line;
70: my @allaccess;
1.25 minaeibi 71: my $Count=0;
1.21 minaeibi 72: while ($line=<FILEID>) {
73: my ($time,$machine,$what)=split(':',$line);
1.25 minaeibi 74: $what=&Apache::lonnet::unescape($what);
1.21 minaeibi 75: my @accesses=split('&',$what);
76: foreach my $access (@accesses) {
77: my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
78: if ($who ne $userid) { next; }
1.25 minaeibi 79: if (!$resource) { next; }
80: my $res=&Apache::lonnet::unescape($resource);
1.26 minaeibi 81: if (($res =~ /\.(problem|htm|html)/)) {
1.25 minaeibi 82: $Count++;
1.26 minaeibi 83: $r->print("<br>$Count) ".localtime($date).": $who --> $res");
84: # if ($post) {
85: # $Count++;
86: # $r->print("<br><b>$Count) Sent data ".join(':',
87: # &Apache::lonnet::unescape(@posts)).'</b>');
88: # }
1.25 minaeibi 89: $r->rflush();
1.26 minaeibi 90: }
1.25 minaeibi 91: ## push (@allaccess,unescape($access));
1.21 minaeibi 92: #print $machine;
93: }
94: }
1.25 minaeibi 95: # @allaccess=sort(@allaccess);
96: # $Count=0;
97: # foreach my $access (@allaccess) {
98: # my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
99: # $Count++;
100: # $r->print("<br>$Count) $date: $who --> $resource");
101: # $r->rflush();
102: # if ($post) {
103: # $r->print("<br><b>Sent data ".join(':',unescape(@posts)).'</b>');
104: # }
105: # }
1.21 minaeibi 106: }
107:
1.27 ! stredwic 108: #---- Analyze Web Page ---------------------------------------------------
1.21 minaeibi 109:
1.27 ! stredwic 110: sub InitAnalysis {
! 111: my ($uri,$part,$problem,$student,$courseID)=@_;
! 112: my ($username,$userdomain)=split(/\:/,$student);
1.21 minaeibi 113:
1.27 ! stredwic 114: # Render the student's view of the problem. $Answ is the problem
! 115: # Stringafied
! 116: my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze',
! 117: 'grade_username' => $username,
! 118: 'grade_domain' => $userdomain,
! 119: 'grade_courseid' => $courseID,
! 120: 'grade_symb' => $problem));
! 121: # my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze'));
1.15 minaeibi 122:
1.27 ! stredwic 123: # (undef,$Answ)=split(/_HASH_REF__/,$Answ,2);
1.18 minaeibi 124: %Answer=();
1.15 minaeibi 125: %Answer=&Apache::lonnet::str2hash($Answ);
126:
1.27 ! stredwic 127: # foreach (sort(keys(%Answer))) {
! 128: # $r->print($_.' '.$Answer{$_}.'<br>');
! 129: # }
! 130:
1.15 minaeibi 131: my $parts='';
132: foreach my $elm (@{$Answer{"parts"}}) {
133: $parts.="$elm,";
134: }
135: chop($parts);
136: my $conc='';
137: foreach my $elm (@{$Answer{"$parts.concepts"}}) {
138: $conc.="$elm@";
139: }
140: chop($conc);
141:
142: @Concepts=split(/\@/,$conc);
143: foreach my $concept (@{$Answer{"$parts.concepts"}}) {
144: foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) {
145: $foil_to_concept{$foil} = $concept;
1.19 minaeibi 146: #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"};
1.15 minaeibi 147: }
148: }
1.27 ! stredwic 149:
! 150: return;
1.15 minaeibi 151: }
152:
153: sub Interval {
1.27 ! stredwic 154: my ($part,$symb)=@_;
! 155: my $interval=$ConceptData{"Interval"};
! 156: my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb)+1;
! 157: my $open = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb);
! 158: my $add=int(($due-$open)/$interval);
! 159: $ConceptData{'Interval.0'}=$open;
! 160: for (my $i=1;$i<$interval;$i++) {
! 161: $ConceptData{'Interval.'.$i}=$open+$i*$add;
1.15 minaeibi 162: }
1.27 ! stredwic 163: $ConceptData{'Interval.'.$interval}=$due;
! 164: for (my $i=0;$i<$interval;$i++) {
1.15 minaeibi 165: for (my $n=0; $n<=$#Concepts; $n++ ) {
166: my $tmp=$Concepts[$n];
1.27 ! stredwic 167: $ConceptData{$tmp.'.'.$i.'.true'}=0;
! 168: $ConceptData{$tmp.'.'.$i.'.false'}=0;
1.15 minaeibi 169: }
170: }
171: }
172:
1.27 ! stredwic 173: sub ShowOpGraph {
! 174: my ($cache, $students, $courseID)=@_;
! 175: my $uri = $cache->{'AnalyzeURI'};
! 176: my $part = $cache->{'AnalyzePart'};
! 177: my $problem = $cache->{'AnalyzeProblem'};
! 178: my $title = $cache->{'AnalyzeProblem'};
! 179: my $interval = $cache->{'Interval'};
! 180: $ConceptData{"Interval"} = $interval;
1.15 minaeibi 181:
1.19 minaeibi 182: #Initialize the option response true answers
1.27 ! stredwic 183: &InitAnalysis($uri, $part, $problem, $students->[0],$courseID);
! 184:
1.19 minaeibi 185: #compute the intervals
1.27 ! stredwic 186: &Interval($part,$problem);
! 187:
! 188: $title =~ s/\ /"_"/eg;
! 189: $r->print('<br><b>'.$uri.'</b>');
1.15 minaeibi 190: $r->rflush();
191:
1.19 minaeibi 192: #Java script Progress window
1.16 minaeibi 193: &Create_PrgWin();
1.27 ! stredwic 194: &Update_PrgWin("Starting to analyze problem",0,0,'');
! 195: for(my $index=0; $index<(scalar @$students); $index++) {
! 196: &Update_PrgWin(scalar @$students, $index+1, $students->[$index]);
! 197: &OpStatus($problem, $students->[$index], $courseID);
1.15 minaeibi 198: }
199: &Close_PrgWin();
200:
1.19 minaeibi 201: $r->print('<br>');
1.27 ! stredwic 202: for(my $k=0; $k<$interval; $k++ ) {
! 203: &DrawGraph($k,$title);
1.15 minaeibi 204: }
1.27 ! stredwic 205: for(my $k=0; $k<$interval; $k++ ) {
1.20 minaeibi 206: &DrawTable($k);
207: }
1.17 minaeibi 208: #$Apache::lonxml::debug=1;
209: #&Apache::lonhomework::showhash(%ConceptData);
210: #$Apache::lonxml::debug=0;
1.27 ! stredwic 211: my $Answ=&Apache::lonnet::ssi($uri);
1.15 minaeibi 212: $r->print("<br><b>Here you can see the Problem:</b><br>$Answ");
213: }
214:
1.20 minaeibi 215: sub DrawTable {
216: my $k=shift;
1.15 minaeibi 217: my $Max=0;
218: my @data1;
219: my @data2;
1.18 minaeibi 220: my $Correct=0;
221: my $Wrong=0;
1.15 minaeibi 222: for (my $n=0; $n<=$#Concepts; $n++ ) {
223: my $tmp=$Concepts[$n];
224: $data1[$n]=$ConceptData{"$tmp.$k.true"};
1.18 minaeibi 225: $Correct+=$data1[$n];
1.15 minaeibi 226: $data2[$n]=$ConceptData{"$tmp.$k.false"};
1.18 minaeibi 227: $Wrong+=$data2[$n];
1.15 minaeibi 228: my $Sum=$data1[$n]+$data2[$n];
229: if ( $Max<$Sum ) {$Max=$Sum;}
230: }
231: for (my $n=0; $n<=$#Concepts; $n++ ) {
232: if ($data1[$n]+$data2[$n]<$Max) {
233: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
234: }
235: }
1.18 minaeibi 236: my $P_No = $#data1+1;
237: # $r->print('<br><b>From: ['.localtime($ConceptData{'Int.'.($k-1)}).
238: # '] To: ['.localtime($ConceptData{"Int.$k"}).']</b>');
239: my $Str = "\n".'<table border=2>'.
240: "\n".'<tr>'.
241: "\n".'<th> # </th>'.
242: "\n".'<th> Concept </th>'.
243: "\n".'<th> Correct </th>'.
244: "\n".'<th> Wrong </th>'.
245: "\n".'</tr>';
1.15 minaeibi 246:
1.18 minaeibi 247: for (my $n=0; $n<=$#Concepts; $n++ ) {
248: $Str .= "\n"."<tr>".
249: "\n"."<td>".($n+1)."</td>".
1.25 minaeibi 250: "\n".'<td bgcolor='.$color{"yellow"}.'> '.$Concepts[$n]." </td>".
251: "\n".'<td bgcolor='.$color{"green"}.'> '.$data1[$n]." </td>".
252: "\n".'<td bgcolor='.$color{"red"}.'> '.$data2[$n]." </td>".
1.18 minaeibi 253: "\n"."</tr>";
254: }
1.20 minaeibi 255: $Str.='<td></td><td><b>From:['.localtime($ConceptData{'Int.'.$k}).
256: '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1).
257: "]</b></td><td>$Correct</td><td>$Wrong</td>";
258:
259: $Str .= "\n".'</table>';
260:
261: $r->print($Str);
1.19 minaeibi 262: #$Apache::lonxml::debug=1;
263: #&Apache::lonhomework::showhash(%ConceptData);
264: #$Apache::lonxml::debug=0;
1.20 minaeibi 265: }
1.19 minaeibi 266:
1.15 minaeibi 267:
1.20 minaeibi 268: sub DrawGraph {
1.27 ! stredwic 269: my ($currentInterval,$title)=@_;
1.20 minaeibi 270: my $Max=0;
271: my @data1;
272: my @data2;
1.15 minaeibi 273:
1.20 minaeibi 274: # Adjust Data and find the Max
1.27 ! stredwic 275: for(my $n=0; $n<=$#Concepts; $n++ ) {
1.20 minaeibi 276: my $tmp=$Concepts[$n];
1.27 ! stredwic 277: $data1[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.true'};
! 278: $data2[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.false'};
1.20 minaeibi 279: my $Sum=$data1[$n]+$data2[$n];
1.27 ! stredwic 280: if($Max < $Sum) { $Max = $Sum; }
1.20 minaeibi 281: }
1.27 ! stredwic 282: for(my $n=0; $n<=$#Concepts; $n++) {
! 283: if($data1[$n]+$data2[$n]<$Max) {
1.20 minaeibi 284: $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
285: }
286: }
1.27 ! stredwic 287: my $P_No = scalar @data1;
1.18 minaeibi 288:
1.27 ! stredwic 289: if($Max > 1) {
1.18 minaeibi 290: $Max += (10 - $Max % 10);
291: $Max = int($Max);
1.27 ! stredwic 292: } else {
! 293: $Max = 1;
! 294: }
1.18 minaeibi 295:
1.27 ! stredwic 296: my $Titr=($ConceptData{'Interval'}>1) ?
! 297: $title.'_interval_'.($currentInterval+1) : $title;
1.18 minaeibi 298: # $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2;
1.27 ! stredwic 299: $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
! 300: $GData .= (join(',',@data1)).'&'.(join(',',@data2));
1.18 minaeibi 301:
1.19 minaeibi 302: $r->print('<IMG src="/cgi-bin/graph.gif?'.$GData.'" border=1/>');
1.15 minaeibi 303: }
304:
305:
306: sub Decide {
1.19 minaeibi 307: #deciding the true or false answer belongs to each interval
1.15 minaeibi 308: my ($type,$foil,$time)=@_;
309: my $k=0;
310: while ($time>$ConceptData{'Int.'.($k+1)} &&
311: $k<$ConceptData{'Interval'}) {$k++;}
312: $ConceptData{"$foil_to_concept{$foil}.$k.$type"}++;
313: }
314:
315:
1.19 minaeibi 316: #restore the student submissions and finding the result
1.15 minaeibi 317: sub OpStatus {
1.27 ! stredwic 318: my ($problem, $student, $courseID)=@_;
! 319: my ($username,$userdomain)=split(/':'/,$student);
1.15 minaeibi 320: my $code='U';
1.27 ! stredwic 321: my %reshash=&Apache::lonnet::restore($problem, $courseID, $userdomain,
! 322: $username);
1.15 minaeibi 323: my @True = ();
324: my @False = ();
325: my $flag=0;
326: if ($reshash{'version'}) {
1.18 minaeibi 327: my $tries=0;
328: &Apache::lonhomework::showhash(%Answer);
1.15 minaeibi 329: for (my $version=1;$version<=$reshash{'version'};$version++) {
330: my $time=$reshash{"$version:timestamp"};
1.18 minaeibi 331:
332: foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) {
333: if (($key=~/\.(\w+)\.(\w+)\.submission$/)) {
334: my $Id1 = $1; my $Id2 = $2;
335: #check if this is a repeat submission, if so skip it
336: if ($reshash{"$version:resource.$Id1.previous"}) { next; }
337: #if no solved this wasn't a real submission, ignore it
338: if (!defined($reshash{"$version:resource.$Id1.solved"})) {
339: &Apache::lonxml::debug("skipping ");
340: next;
341: }
342: my $Resp = $reshash{"$version:$key"};
1.15 minaeibi 343: my %submission=&Apache::lonnet::str2hash($Resp);
344: foreach (keys %submission) {
1.18 minaeibi 345: my $Ansr = $Answer{"$Id1.$Id2.foil.value.$_"};
1.15 minaeibi 346: if ($submission{$_}) {
347: if ($submission{$_} eq $Ansr) {
348: &Decide("true",$_,$time );
349: }
350: else {&Decide("false",$_,$time );}
351: }
352: }
353: }
354: }
355: }
356: }
357: }
1.11 minaeibi 358:
1.27 ! stredwic 359: #---- END Analyze Web Page ----------------------------------------------
! 360:
! 361: #---- Problem Statistics Web Page ---------------------------------------
1.11 minaeibi 362:
1.7 minaeibi 363: #------- Processing upperlist and lowerlist according to each problem
1.27 ! stredwic 364: sub ProcessDiscriminant {
! 365: my ($List) = @_;
! 366: my @sortedList = sort (@$List);
! 367: my $Count = scalar @sortedList;
! 368: my $Problem;
1.7 minaeibi 369: my @Dis;
370: my $Slvd=0;
371: my $tmp;
1.8 minaeibi 372: my $Sum1=0;
373: my $Sum2=0;
1.27 ! stredwic 374: my $nIndex=0;
! 375: my $nStudent=0;
! 376: my %Proc=undef;
! 377: while ($nIndex<$Count) {
! 378: ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
1.7 minaeibi 379: @Dis=split(/\+/,$tmp);
1.27 ! stredwic 380: my $Temp = $Problem;
1.7 minaeibi 381: do {
1.27 ! stredwic 382: $nIndex++;
! 383: $nStudent++;
1.8 minaeibi 384: $Sum1 += $Dis[0];
385: $Sum2 += $Dis[1];
1.27 ! stredwic 386: ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
1.7 minaeibi 387: @Dis=split(/\+/,$tmp);
1.27 ! stredwic 388: } while ( $Problem eq $Temp && $nIndex < $Count );
! 389: # $Proc{$Temp}=($Sum1/$nStudent).':'.$nStudent;
! 390: $Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent);
! 391: # $r->print("$nIndex) $Temp --> ($nStudent) $Proc{$Temp} <br>");
1.8 minaeibi 392: $Sum1=0;
393: $Sum2=0;
1.27 ! stredwic 394: $nStudent=0;
1.7 minaeibi 395: }
1.27 ! stredwic 396:
1.7 minaeibi 397: return %Proc;
398: }
399:
400:
401: #------- Creating Discimination factor
402: sub Discriminant {
1.27 ! stredwic 403: my ($discriminantFactor)=@_;
! 404: my @discriminantKeys=keys(%$discriminantFactor);
! 405: my $Count = scalar @discriminantKeys;
! 406:
! 407: my $UpCnt = int(0.27*$Count);
1.7 minaeibi 408: my $low=0;
409: my $up=$Count-$UpCnt;
410: my @UpList=();
411: my @LowList=();
1.27 ! stredwic 412:
1.7 minaeibi 413: $Count=0;
1.27 ! stredwic 414: foreach my $key (sort(@discriminantKeys)) {
1.7 minaeibi 415: $Count++;
1.27 ! stredwic 416: if($low < $UpCnt || $Count > $up) {
! 417: $low++;
! 418: my $str=$discriminantFactor->{$key};
! 419: foreach(split(/\:/,$str)){
! 420: if($_) {
! 421: if($low<$UpCnt) { push(@LowList,$_); }
! 422: else { push(@UpList,$_); }
! 423: }
! 424: }
! 425: }
1.7 minaeibi 426: }
1.27 ! stredwic 427: my %DisUp = &ProcessDiscriminant(\@UpList);
! 428: my %DisLow = &ProcessDiscriminant(\@LowList);
! 429:
! 430: return (\%DisUp, \%DisLow);
1.7 minaeibi 431: }
432:
1.1 albertel 433: sub NumericSort {
434: $a <=> $b;
435: }
436:
1.27 ! stredwic 437: sub CreateProblemStatisticsTableHeading {
! 438: my ($displayFormat,$sequenceSource,$sequenceTitle,$headings)=@_;
! 439: if($displayFormat eq 'Display CSV Format') {
! 440: $r->print('<br>"'.$sequenceTitle.'","');
! 441: $r->print($sequenceSource.'"');
1.1 albertel 442: return;
443: }
444:
1.27 ! stredwic 445: $r->print('<br><a href="'.$sequenceSource.
! 446: '" target="_blank">'.$sequenceTitle.'</a>');
1.1 albertel 447:
1.27 ! stredwic 448: my $Result = "\n".'<table border=2><tr><th>P#</th>'."\n";
! 449: for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) {
! 450: $Result .= '<th>'.'<input type="submit" name="';
! 451: $Result .= 'ProblemStatisticsHeading" value="';
! 452: $Result .= $headings->{$nIndex}.'" />'.'</th>'."\n";
1.5 minaeibi 453: }
454: $Result .= "\n".'</tr>'."\n";
1.27 ! stredwic 455: $r->print($Result);
1.5 minaeibi 456: $r->rflush();
457: }
1.1 albertel 458:
1.5 minaeibi 459: sub CloseTable {
1.27 ! stredwic 460: my ($cache)=@_;
! 461: if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
1.18 minaeibi 462: return;
463: }
1.5 minaeibi 464: $r->print("\n".'</table>'."\n");
465: $r->rflush();
466: }
1.19 minaeibi 467:
1.27 ! stredwic 468: # ------ Dump the Student's DB file and handling the data for statistics table
! 469: sub ExtractStudentData {
! 470: my ($cache,$name)=@_;
! 471: my %discriminantFactor;
! 472: my @list=();
! 473:
! 474: my $totalTries = 0;
! 475: my $totalAwarded = 0;
! 476: my $tempProblemOrder=0;
! 477: foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
! 478: if($cache->{'ProblemStatisticsMap'} ne 'All Maps' &&
! 479: $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) {
! 480: next;
1.1 albertel 481: }
1.12 minaeibi 482:
1.27 ! stredwic 483: my $Dis = '';
! 484: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
! 485: my $problem = $cache->{$problemID.':problem'};
! 486: my $LatestVersion = $cache->{$name.':version:'.$problem};
! 487:
! 488: # Output dashes for all the parts of this problem if there
! 489: # is no version information about the current problem.
! 490: #if(!$LatestVersion) {
! 491: # foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 492: # $problemID.
! 493: # ':parts'})) {
! 494: # $codes .= "-,";
! 495: # $attempts .= "0,";
! 496: # }
! 497: # next;
! 498: #}
! 499:
! 500: my %partData=undef;
! 501: # Initialize part data, display skips correctly
! 502: # Skip refers to when a student made no submissions on that
! 503: # part/problem.
! 504: foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 505: $problemID.
! 506: ':parts'})) {
! 507: $partData{$part.':tries'}=0;
! 508: $partData{$part.':code'}='-';
! 509: }
1.1 albertel 510:
1.27 ! stredwic 511: # Looping through all the versions of each part, starting with the
! 512: # oldest version. Basically, it gets the most recent
! 513: # set of grade data for each part.
! 514: for(my $Version=1; $Version<=$LatestVersion; $Version++) {
! 515: foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 516: $problemID.
! 517: ':parts'})) {
! 518:
! 519: if(!defined($cache->{$name.":$Version:$problem".
! 520: ":resource.$part.solved"})) {
! 521: # No grade for this submission, so skip
! 522: next;
! 523: }
! 524:
! 525: my $tries=0;
! 526: my $time=0;
! 527: my $awarded=0;
! 528: my $code='U';
! 529:
! 530: $awarded = $cache->{$name.
! 531: "$Version:$problem:resource.".
! 532: "$part.awarded"};
! 533: $partData{$part.':awarded'} = ($awarded) ? $awarded : 0;
! 534: $totalAwarded += $awarded;
! 535:
! 536: $tries = $cache->{$name.":$Version:$problem".
! 537: ":resource.$part.tries"};
! 538: $partData{$part.':tries'} = ($tries) ? $tries : 0;
! 539: $partData{$part.':wrong'} = $partData{$part.':tries'};
! 540: $totalTries += $tries;
! 541:
! 542: my $val = $cache->{$name.":$Version:$problem".
! 543: ":resource.$part.solved"};
! 544: if ($val eq 'correct_by_student') {$code = 'C';}
! 545: elsif ($val eq 'correct_by_override') {$code = 'O';}
! 546: elsif ($val eq 'incorrect_attempted') {$code = 'I';}
! 547: elsif ($val eq 'incorrect_by_override'){$code = 'I';}
! 548: elsif ($val eq 'excused') {$code = 'x';}
! 549: $partData{$part.':code'}=$code;
! 550:
! 551: if($partData{$part.':wrong'} ne 0 &&
! 552: ($code eq 'C' || $code eq 'O')) {
! 553: $partData{$part.':wrong'}--;
! 554: }
! 555: }
! 556: }
1.1 albertel 557:
1.27 ! stredwic 558: # Loop through all the parts for the current problem in the
! 559: # correct order and prepare the output
! 560: foreach (split(/\:/,$cache->{$sequence.':'.$problemID.
! 561: ':parts'})) {
! 562: my $Yes = 0;
! 563: if($partData{$_.':code'} eq 'C' ||
! 564: $partData{$_.':code'} eq 'O') {
! 565: $Yes=1;
! 566: }
! 567: #my $ptr = "$hash{'title_'.$ResId}";
! 568: my $ptr = $tempProblemOrder.'&'.$problemID;
1.1 albertel 569:
1.27 ! stredwic 570: if($_ > 1) {
! 571: $ptr .= "*(part $_)";
! 572: $Dis .= '&';
! 573: }
! 574: my $Fac = ($partData{$_.':Tries'}) ?
! 575: ($partData{$_.':awarded'}/$partData{$_.':tries'}) : 0;
! 576: my $DisF;
! 577: if($Fac > 0 && $Fac < 1) {
! 578: $DisF = sprintf( "%.4f", $Fac );
! 579: } else {
! 580: $DisF = $Fac;
! 581: }
! 582: $Dis .= $tempProblemOrder.'='.$DisF.'+'.$Yes;
! 583: $ptr .= '&'.$partData{$_.'.Tries'}.
! 584: '&'.$partData{$_.'.Wrongs'}.
! 585: '&'.$partData{$_.'.Code'};
! 586: push (@list, $ptr);
! 587: $tempProblemOrder++;
1.5 minaeibi 588: }
1.1 albertel 589: }
1.27 ! stredwic 590: if($totalTries) {
! 591: my $DisFac = ($totalAwarded/$totalTries);
1.1 albertel 592: my $DisFactor = sprintf( "%.4f", $DisFac );
1.27 ! stredwic 593: $discriminantFactor{$DisFactor}=$Dis;
1.1 albertel 594: }
595: }
596:
1.27 ! stredwic 597: return (\%discriminantFactor, \@list);
1.1 albertel 598: }
599:
600: sub MySort {
1.6 minaeibi 601: if ( $Pos > 0 ) {
1.1 albertel 602: if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;}
603: else { $a <=> $b; }
604: }
605: else {
606: if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;}
607: else { $a cmp $b; }
608: }
609: }
610:
1.27 ! stredwic 611: sub BuildStatisticsTable {
! 612: my ($cache,$discriminantFactor,$list,$headings)=@_;
1.1 albertel 613:
1.27 ! stredwic 614: my $p_count = 0;
! 615: my $nIndex = 0;
! 616: my $dummy;
! 617: my $p_val;
! 618: my $ResId;
! 619: my $NoElements = scalar @$list;
1.15 minaeibi 620:
1.27 ! stredwic 621: foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
! 622: if($cache->{'ProblemStatisticsMap'} ne 'All Maps' &&
! 623: $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) {
! 624: next;
! 625: }
1.15 minaeibi 626:
1.27 ! stredwic 627: &CreateProblemStatisticsTableHeading($cache->{'DisplayFormat'},
! 628: $cache->{$sequence.':source'},
! 629: $cache->{$sequence.':title'},
! 630: $headings);
1.5 minaeibi 631: my ($Hid,$pr)=split(/\:/,$mapsort{$_});
632: my @lpr=split(/\&/,$pr);
633: for (my $i=1; $i<=$#lpr; $i++) {
634: my %storestats=();
1.27 ! stredwic 635: my ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]);
1.5 minaeibi 636: my $Temp = $Prob;
637: my $MxTries = 0;
638: my $TotalTries = 0;
639: my $YES = 0;
640: my $Incorrect = 0;
641: my $Override = 0;
642: my $StdNo = 0;
643: my @StdLst;
644: while ( $PrOrd == $lpr[$i] )
645: {
1.27 ! stredwic 646: $nIndex++;
1.5 minaeibi 647: $StdNo++;
648: $StdLst[ $StdNo ] = $Tries;
649: $TotalTries += $Tries;
650: if ( $MxTries < $Tries ) { $MxTries = $Tries; }
651: if ( $Code eq 'C' ){ $YES++; }
652: elsif( $Code eq 'I' ) { $Incorrect++; }
653: elsif( $Code eq 'O' ) { $Override++; }
654: elsif( $Code eq 'U' ) { $StdNo--; }
1.27 ! stredwic 655: ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]);
1.5 minaeibi 656: }
657:
658: $p_count++;
659: my $Dummy;
660: ($ResId,$Dummy)=split(/\*/,$Temp);
1.1 albertel 661:
1.5 minaeibi 662: $Temp = '<a href="'.$hash{'src_'.$ResId}.
663: '" target="_blank">'.$hash{'title_'.$ResId}.$Dummy.'</a>';
1.15 minaeibi 664:
1.5 minaeibi 665: my $res = &Apache::lonnet::declutter($hash{'src_'.$ResId});
666: my $urlres=$res;
1.1 albertel 667:
1.5 minaeibi 668: $ResId=~/(\d+)\.(\d+)/;
669: my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} );
670: $urlres=$Map;
1.1 albertel 671:
1.5 minaeibi 672: $res = '<a href="'.$hash{'src_'.$ResId}.'">'.$res.'</a>';
673: #$Map = '<a href="'.$Map.'">'.$res.'</a>';
1.1 albertel 674:
675: #------------------------ Compute the Average of Tries about one problem
1.5 minaeibi 676: my $Average = ($StdNo) ? $TotalTries/$StdNo : 0;
1.1 albertel 677:
1.5 minaeibi 678: $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___timestamp'}=time;
679: $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___stdno'}=$StdNo;
680: $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___avetries'}=$Average;
1.1 albertel 681:
682: #-------------------------------- Compute percentage of Wrong tries
1.5 minaeibi 683: my $Wrong = ( $StdNo ) ? 100 * ( $Incorrect / $StdNo ) : 0;
1.1 albertel 684:
685: #-------------------------------- Compute Standard Deviation
1.5 minaeibi 686: my $StdDev = 0;
687: if ( $StdNo > 1 ) {
688: for ( my $n = 0; $n < $StdNo; $n++ ) {
689: my $Dif = $StdLst[ $n ]-$Average;
690: $StdDev += $Dif*$Dif;
691: }
692: $StdDev /= ( $StdNo - 1 );
693: $StdDev = sqrt( $StdDev );
694: }
1.1 albertel 695:
696: #-------------------------------- Compute Degree of Difficulty
1.5 minaeibi 697: my $DoDiff = 0;
698: if( $TotalTries > 0 ) {
699: $DoDiff = 1 - ( ( $YES + $Override ) / $TotalTries );
1.1 albertel 700: # $DoDiff = ($TotalTries)/($YES + $Override+ 0.1);
1.5 minaeibi 701: }
1.1 albertel 702:
1.5 minaeibi 703: $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___difficulty'}=$DoDiff;
1.1 albertel 704:
705: #-------------------------------- Compute the Skewness
1.5 minaeibi 706: my $Skewness = 0;
707: my $Sum = 0;
708: if ( $StdNo > 0 && $StdDev > 0 ) {
709: for ( my $n = 0; $n < $StdNo; $n++ ) {
710: my $Dif = $StdLst[ $n ]-$Average;
711: $Skewness += $Dif*$Dif*$Dif;
712: }
713: $Skewness /= $StdNo;
1.15 minaeibi 714: $Skewness /= $StdDev*$StdDev*$StdDev;
1.5 minaeibi 715: }
1.7 minaeibi 716:
717: #--------------------- Compute the Discrimination Factors
1.27 ! stredwic 718: my ($Up1,$Up2)=split(/\:/,':');#jason$DisUp->{$lpr[$i]});
! 719: my ($Lw1,$Lw2)=split(/\:/,':');#jason$DisLow->{$lpr[$i]});
1.8 minaeibi 720: my $Dis1 = $Up1 - $Lw1;
721: my $Dis2 = $Up2 - $Lw2;
722: my $_D1 = sprintf("%.2f", $Dis1);
723: my $_D2 = sprintf("%.2f", $Dis2);
1.7 minaeibi 724:
1.1 albertel 725: #----------------- Some restition in presenting the float numbers
1.5 minaeibi 726: my $Avg = sprintf( "%.2f", $Average );
727: my $Wrng = sprintf( "%.1f", $Wrong );
728: my $SD = sprintf( "%.1f", $StdDev );
729: my $DoD = sprintf( "%.2f", $DoDiff );
730: my $Sk = sprintf( "%.1f", $Skewness );
1.15 minaeibi 731: my $join = $lpr[$i].'&'.$Temp.'&'.$StdNo.'&'.
1.12 minaeibi 732: $TotalTries.'&'.$MxTries.'&'.$Avg.'&'.
733: $YES.'&'.$Override.'&'.$Wrng.'&'.$DoD.'&'.
1.15 minaeibi 734: $SD.'&'.$Sk.'&'.$_D1.'&'.$_D2.'&'.
735: $Prob;
1.5 minaeibi 736: $CachData{($p_count-1)}=$join;
737:
738: $urlres=~/^(\w+)\/(\w+)/;
739: if ($StdNo) {
740: &Apache::lonnet::put('resevaldata',\%storestats,$1,$2);
741: }
1.1 albertel 742: #-------------------------------- Row of statistical table
1.27 ! stredwic 743: &TableRow($cache,$join,$i,($p_count-1));
1.5 minaeibi 744: }
1.27 ! stredwic 745: &CloseTable($cache);
1.1 albertel 746: }
1.15 minaeibi 747: &Close_PrgWin();
1.1 albertel 748: }
749:
1.27 ! stredwic 750: =pod
1.1 albertel 751: sub Cache_Statistics {
1.27 ! stredwic 752: my ($cache)=@_;
1.1 albertel 753: my @list = ();
754: my $Useful;
755: my $UnUseful;
1.20 minaeibi 756: # $r->print('<input type="hidden" name="show" value="excel" />'."\n");
1.1 albertel 757: my %myHeader = reverse( %Header );
758: $Pos = $myHeader{$ENV{'form.sort'}};
1.5 minaeibi 759: if ($Pos > 0) {$Pos++;}
1.27 ! stredwic 760: my $p_count = 0;
1.1 albertel 761: foreach my $key( keys %CachData) {
1.12 minaeibi 762: my @Temp=split(/\&/,$CachData{$key});
1.6 minaeibi 763: if ( $Pos == 0 ) {
1.1 albertel 764: ($UnUseful,$Useful)=split(/\>/,$Temp[$Pos]);
765: }
766: else {
767: $Useful = $Temp[$Pos];
768: }
1.12 minaeibi 769: $list[$p_count]=$Useful.'@'.$CachData{$key};
1.1 albertel 770: $p_count++;
771: }
772:
773: @list = sort MySort (@list);
774:
1.27 ! stredwic 775: my $nIndex=0;
1.5 minaeibi 776:
777: if ( $Pos == 0 ) {
778: foreach (sort keys %mapsort) {
779: my ($Hid,$pr)=split(/\:/,$mapsort{$_});
1.27 ! stredwic 780: &CreateProblemStatisticsTableHeading($cache,1,$Hid);
1.5 minaeibi 781: my @lpr=split(/\&/,$pr);
782: for (my $i=1; $i<=$#lpr; $i++) {
1.27 ! stredwic 783: my($Pre, $Post) = split(/\@/,$list[$nIndex]);
1.12 minaeibi 784: #$r->print('<br>'.$Pre.'---'.$Post);
1.27 ! stredwic 785: &TableRow($cache,$Post,$i,$nIndex);
! 786: $nIndex++;
1.5 minaeibi 787: }
1.27 ! stredwic 788: &CloseTable($cache);
1.5 minaeibi 789: }
790: }
791: else {
1.27 ! stredwic 792: &CreateProblemStatisticsTableHeading($cache,0);
! 793: for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) {
! 794: my($Pre, $Post) = split(/\@/,$list[$nIndex]);
! 795: &TableRow($cache,$Post,$nIndex,$nIndex);
1.5 minaeibi 796: }
1.27 ! stredwic 797: &CloseTable($cache);
1.5 minaeibi 798: }
799: }
1.27 ! stredwic 800: =cut
1.5 minaeibi 801: sub TableRow {
1.27 ! stredwic 802: my ($cache,$Str,$Idx,$RealIdx)=@_;
1.12 minaeibi 803: my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override,
804: $Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$Prob)=split(/\&/,$Str);
1.27 ! stredwic 805: if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
1.18 minaeibi 806: my ($ResId,$Dummy)=split(/\*/,$Prob);
807: my $Ptr = "\n".'<br>'.
808: "\n".'"'.($RealIdx+1).'",'.
809: "\n".'"'.$hash{'title_'.$ResId}.$Dummy.'",'.
810: "\n".'"'.$hash{'src_'.$ResId}.'",'.
811: "\n".'"'.$StdNo.'",'.
812: "\n".'"'.$TotalTries.'",'.
813: "\n".'"'.$MxTries.'",'.
814: "\n".'"'.$Avg.'",'.
815: "\n".'"'.$YES.'",'.
816: "\n".'"'.$Override.'",'.
817: "\n".'"'.$Wrng.'",'.
818: "\n".'"'.$DoD.'",'.
819: "\n".'"'.$SD.'",'.
820: "\n".'"'.$Sk.'",'.
821: "\n".'"'.$_D1.'",'.
822: "\n".'"'.$_D2.'"';
823: $r->print("\n".$Ptr);
1.27 ! stredwic 824: } else {
1.18 minaeibi 825: my $Ptr = "\n".'<tr>'.
1.5 minaeibi 826: "\n".'<td>'.($RealIdx+1).'</td>'.
1.13 minaeibi 827: # "\n".'<td>'.$PrOrd.$Temp.'</td>'.
1.8 minaeibi 828: "\n".'<td>'.$Temp.'</td>'.
1.25 minaeibi 829: "\n".'<td bgcolor='.$color{"yellow"}.'> '.$StdNo.'</td>'.
830: "\n".'<td bgcolor='.$color{"yellow"}.'>'.$TotalTries.'</td>'.
831: "\n".'<td bgcolor='.$color{"yellow"}.'>'.$MxTries.'</td>'.
832: "\n".'<td bgcolor='.$color{"gb"}.'>'.$Avg.'</td>'.
833: "\n".'<td bgcolor='.$color{"gb"}.'> '.$YES.'</td>'.
834: "\n".'<td bgcolor='.$color{"gb"}.'> '.$Override.'</td>'.
835: "\n".'<td bgcolor='.$color{"red"}.'> '.$Wrng.'</td>'.
836: "\n".'<td bgcolor='.$color{"red"}.'> '.$DoD.'</td>'.
837: "\n".'<td bgcolor='.$color{"green"}.'> '.$SD.'</td>'.
838: "\n".'<td bgcolor='.$color{"green"}.'> '.$Sk.'</td>'.
839: "\n".'<td bgcolor='.$color{"purple"}.'> '.$_D1.'</td>'.
840: "\n".'<td bgcolor='.$color{"purple"}.'> '.$_D2.'</td>';
1.18 minaeibi 841: $r->print("\n".$Ptr.'</tr>' );
842: }
1.5 minaeibi 843: $GraphDat{$RealIdx}=$DoD.':'.$Wrng;
1.1 albertel 844: }
845:
1.27 ! stredwic 846: sub StatusOptions {
! 847: my ($cache)=@_;
! 848:
! 849: my $Status = $cache->{'Status'};
! 850: my $OpSel1 = '';
! 851: my $OpSel2 = '';
! 852: my $OpSel3 = '';
! 853:
! 854: if($Status eq 'Any') { $OpSel3 = ' selected'; }
! 855: elsif($Status eq 'Expired' ) { $OpSel2 = ' selected'; }
! 856: else { $OpSel1 = ' selected'; }
! 857:
! 858: my $Ptr = '';
! 859: $Ptr .= '<tr><td align="right"><b>Student Status:</b></td>'."\n";
! 860: $Ptr .= '<td align="left"><select name="Status">';
! 861: $Ptr .= '<option'.$OpSel1.'>Active</option>'."\n";
! 862: $Ptr .= '<option'.$OpSel2.'>Expired</option>'."\n";
! 863: $Ptr .= '<option'.$OpSel3.'>Any</option>'."\n";
! 864: $Ptr .= '</select></td></tr>'."\n";
! 865:
! 866: return $Ptr;
! 867: }
! 868:
! 869: sub AscendOrderOptions {
! 870: my ($cache)=@_;
! 871:
! 872: my $order = $cache->{'Ascend'};
! 873: my $OpSel1 = '';
! 874: my $OpSel2 = '';
! 875:
! 876: if($order eq 'Ascending') {
! 877: $OpSel1 = ' selected';
! 878: } else {
! 879: $OpSel2 = ' selected';
! 880: }
! 881:
! 882: my $Ptr = '';
! 883: $Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n";
! 884: $Ptr .= '<td align="left"><select name="Ascend">'."\n";
! 885: $Ptr .= '<option'.$OpSel1.'>Ascending</option>'."\n".
! 886: '<option'.$OpSel2.'>Descending</option>'."\n";
! 887: $Ptr .= '</select></td></tr>'."\n";
! 888:
! 889: return $Ptr;
! 890: }
! 891:
! 892: sub ProblemStatisticsButtons {
! 893: my ($cache)=@_;
! 894:
! 895: my $Ptr = '<tr><td></td><td align="left">';
! 896: $Ptr .= '<input type=submit name="ProblemStatisticsRecalculate" ';
! 897: $Ptr .= 'value="Recalculate Statistics"/>'."\n";
! 898: $Ptr .= ' ';
! 899: $Ptr .= '<input type="submit" name="DoDiffGraph" ';
! 900: $Ptr .= 'value="DoDiff Graph" />'."\n";
! 901: $Ptr .= ' ';
! 902: $Ptr .= '<input type="submit" name="PercentWrongGraph" ';
! 903: $Ptr .= 'value="%Wrong Graph" />'."\n";
! 904: $Ptr .= ' ';
! 905: $Ptr .= '<input type="submit" name="DisplayCSVFormat" ';
! 906: if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
! 907: $Ptr .= 'value="Display CSV Format" />'."\n";
! 908: } else {
! 909: $Ptr .= 'value="Display Table Format" />'."\n";
! 910: }
! 911: $Ptr .= '</td></tr>';
! 912:
! 913: return $Ptr;
! 914: }
! 915:
! 916: sub ProblemStatisticsLegend {
! 917: my $Ptr = '';
! 918: $Ptr = '<table border="0">';
! 919: $Ptr .= '<tr><td>';
! 920: $Ptr .= '<b>#Stdnts</b>:</td>';
! 921: $Ptr .= '<td>Total Number of Students opened the problem.';
! 922: $Ptr .= '</td></tr><tr><td>';
! 923: $Ptr .= '<b>Tries</b>:</td>';
! 924: $Ptr .= '<td>Total Number of Tries for solving the problem.';
! 925: $Ptr .= '</td></tr><tr><td>';
! 926: $Ptr .= '<b>Mod</b>:</td>';
! 927: $Ptr .= '<td>Maximunm Number of Tries for solving the problem.';
! 928: $Ptr .= '</td></tr><tr><td>';
! 929: $Ptr .= '<b>Mean</b>:</td>';
! 930: $Ptr .= '<td>Average Number of the tries. [ Tries / #Stdnts ]';
! 931: $Ptr .= '</td></tr><tr><td>';
! 932: $Ptr .= '<b>#YES</b>:</td>';
! 933: $Ptr .= '<td>Number of students solved the problem correctly.';
! 934: $Ptr .= '</td></tr><tr><td>';
! 935: $Ptr .= '<b>#yes</b>:</td>';
! 936: $Ptr .= '<td>Number of students solved the problem by override.';
! 937: $Ptr .= '</td></tr><tr><td>';
! 938: $Ptr .= '<b>%Wrng</b>:</td>';
! 939: $Ptr .= '<td>Percentage of students tried to solve the problem ';
! 940: $Ptr .= 'but still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]';
! 941: $Ptr .= '</td></tr><tr><td>';
! 942: # Kashy formula
! 943: # '<b> DoDiff </b>: Degree of Difficulty of the problem.<br>'.
! 944: # '[ Tries/(#YES+#yes+0.1) ]<br>'.
! 945: #Gerd formula
! 946: $Ptr .= '<b>DoDiff</b>:</td>';
! 947: $Ptr .= '<td>Degree of Difficulty of the problem. ';
! 948: $Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]';
! 949: $Ptr .= '</td></tr><tr><td>';
! 950: $Ptr .= '<b>S.D.</b>:</td>';
! 951: $Ptr .= '<td>Standard Deviation of the tries. ';
! 952: $Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) ';
! 953: $Ptr .= 'where Xi denotes every student\'s tries ]';
! 954: $Ptr .= '</td></tr><tr><td>';
! 955: $Ptr .= '<b>Skew.</b>:</td>';
! 956: $Ptr .= '<td>Skewness of the students tries.';
! 957: $Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]';
! 958: $Ptr .= '</td></tr><tr><td>';
! 959: $Ptr .= '<b>Dis.F.</b>:</td>';
! 960: $Ptr .= '<td>Discrimination Factor: A Standard for evaluating the ';
! 961: $Ptr .= 'problem according to a Criterion<br>';
! 962: $Ptr .= '<b>[Applied Criterion in %27 Upper Students - ';
! 963: $Ptr .= 'Applied the same Criterion in %27 Lower Students]</b><br>';
! 964: $Ptr .= '<b>1st Criterion</b> for Sorting the Students: ';
! 965: $Ptr .= '<b>Sum of Partial Credit Awarded / Total Number of Tries</b><br>';
! 966: $Ptr .= '<b>2nd Criterion</b> for Sorting the Students: ';
! 967: $Ptr .= '<b>Total number of Correct Answers / Total Number of Tries</b>';
! 968: $Ptr .= '</td></tr></table>';
! 969:
! 970: return $Ptr;
! 971: }
! 972:
! 973: #---- END Problem Statistics Web Page ----------------------------------------
! 974:
! 975: #---- Problem Statistics Graph Web Page --------------------------------------
1.1 albertel 976:
977: sub GetGraphData {
1.27 ! stredwic 978: my ($whichGraph, $courseID)=@_;
! 979: my $Col=0;
! 980: my $graphTitle='';
1.1 albertel 981: my $data='';
982: my $count = 0;
983: my $Max = 0;
1.27 ! stredwic 984: my $graphData='Graph data does not exist.';
1.1 albertel 985: my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
1.27 ! stredwic 986: "_$ENV{'user.domain'}_$courseID\_graph.db";
! 987: if(-e $GraphDB) {
! 988: if(tie(%GraphDat,'GDBM_File',"$GraphDB",&GDBM_READER,0640)) {
! 989: if($whichGraph eq 'DiffGraph') {
! 990: $graphTitle = 'Degree-of-Difficulty';
1.1 albertel 991: $Col = 0;
1.27 ! stredwic 992: } else {
! 993: $graphTitle = 'Wrong-Percentage';
1.1 albertel 994: $Col = 1;
995: }
996: foreach (sort NumericSort keys %GraphDat) {
997: my @Temp=split(/\:/,$GraphDat{$_});
998: my $inf = $Temp[$Col];
1.27 ! stredwic 999: if($Max < $inf) {
! 1000: $Max = $inf;
! 1001: }
1.1 albertel 1002: $data .= $inf.',';
1003: $count++;
1004: }
1.27 ! stredwic 1005: if($Max > 1) {
1.15 minaeibi 1006: $Max += (10 - $Max % 10);
1007: $Max = int($Max);
1.27 ! stredwic 1008: } else {
! 1009: $Max = 1;
! 1010: }
1.1 albertel 1011: untie(%GraphDat);
1.27 ! stredwic 1012: my $Course = $ENV{'course.'.$courseID.'.description'};
1.1 albertel 1013: $Course =~ s/\ /"_"/eg;
1.27 ! stredwic 1014: $graphData = $Course.'&'.'Problems'.'&'.$graphTitle.'&'.$Max.'&';
! 1015: $graphData .= $count.'&'.$data;
! 1016: } else {
! 1017: $graphData = "Unable to tie hash to db file";
! 1018: }
! 1019: }
! 1020:
! 1021: return $graphData;
! 1022: }
! 1023:
! 1024: #---- END Problem Statistics Graph Web Page ----------------------------------
! 1025:
! 1026: #---- Problem Analysis Web Page ----------------------------------------------
! 1027:
! 1028: sub IntervalOptions {
! 1029: my ($cache)=@_;
! 1030:
! 1031: my $interval = 1;
! 1032: for(my $n=1; $n<=7; $n++) {
! 1033: if($cache->{'Interval'} == $n) {
! 1034: $interval = $n;
! 1035: }
! 1036: }
! 1037:
! 1038: my $Ptr = '<br><b>Select number of intervals</b>'."\n".
! 1039: '<select name="Interval">'."\n";
! 1040: for(my $n=1; $n<=7;$ n++) {
! 1041: $Ptr .= '<option';
! 1042: if($interval == $n) {
! 1043: $Ptr .= ' selected';
! 1044: }
! 1045: $Ptr .= '>'.$n."</option>"."\n";
! 1046: }
! 1047: $Ptr .= '</select>'."\n";
! 1048:
! 1049: return $Ptr;
! 1050: }
! 1051:
! 1052: sub OptionResponseTable {
! 1053: my ($cache)=@_;
! 1054: my $Str = '';
! 1055: $Str .= '<br><b> Option Response Problems in this course:</b>'."\n";
! 1056: $Str .= '<br><br>'."\n";
! 1057: $Str .= "<table border=2><tr><th> \# </th><th> Problem Title </th>";
! 1058: $Str .= '<th> Resource </th><th> Analysis </th></tr>'."\n";
! 1059:
! 1060: my $number=1;
! 1061: foreach (split(':::',$cache->{'OptionResponses'})) {
! 1062: my ($uri,$title,$part,$problem)=split('::',$_);
! 1063: my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
! 1064: $Str .= '<tr>';
! 1065: $Str .= '<td> '.$number.' </td>';
! 1066: $Str .= '<td bgcolor="'.$color{"green"}.'"> '.$Temp.' </td>';
! 1067: $Str .= '<td bgcolor="'.$color{"yellow"}.'"> '.$uri.' </td>';
! 1068: $Str .= '<td><input type="submit" name="Analyze:::'.$uri.':::';
! 1069: $Str .= $title.':::'.$part.':::'.$problem.'" value="';
! 1070: $Str .= 'Analyze" /></td></tr>'."\n";
! 1071: $number++;
! 1072: }
! 1073: $Str .= '</table>'."\n";
! 1074:
! 1075: return $Str;
! 1076: }
! 1077:
! 1078: #---- END Problem Analysis Web Page ------------------------------------------
! 1079:
! 1080: #---- Student Assessment Web Page --------------------------------------------
! 1081:
! 1082: sub MapOptions {
! 1083: my ($cache, $page)=@_;
! 1084: my $Ptr = '<tr>';
! 1085: $Ptr .= '<td align="right"><b>Select Map</b></td>'."\n";
! 1086: $Ptr .= '<td align="left"><select name="Maps">'."\n";
! 1087:
! 1088: my $selected = 0;
! 1089: foreach my $sequence (split(':',$cache->{'orderedSequences'})) {
! 1090: $Ptr .= '<option';
! 1091: if($cache->{$page.'Map'} eq $cache->{$sequence.':title'}) {
! 1092: $Ptr .= ' selected';
! 1093: $selected = 1;
! 1094: }
! 1095: $Ptr .= '>'.$cache->{$sequence.':title'}.'</option>'."\n";
! 1096: }
! 1097: $Ptr .= '<option';
! 1098: if(!$selected) {
! 1099: $Ptr .= ' selected';
! 1100: }
! 1101: $Ptr .= '>All Maps</option>'."\n";
! 1102:
! 1103: $Ptr .= '</select></td></tr>'."\n";
! 1104:
! 1105: return $Ptr;
! 1106: }
! 1107:
! 1108: sub StudentOptions {
! 1109: my ($students, $selectedName)=@_;
! 1110:
! 1111: my $Ptr ='<tr>';
! 1112: $Ptr .= '<td align="right"><b>Select Student</b></td>'."\n";
! 1113: $Ptr .= '<td align="left"><select name="Students">'."\n";
! 1114:
! 1115: my $selected=0;
! 1116: foreach (@$students) {
! 1117: my ($name) = split(':',$_);
! 1118: $Ptr .= '<option';
! 1119: if($selectedName eq $name) {
! 1120: $Ptr .= ' selected';
! 1121: $selected = 1;
! 1122: }
! 1123: $Ptr .= '>'.$name.'</option>'."\n";
! 1124: }
! 1125:
! 1126: $Ptr .= '<option';
! 1127: if(!$selected) {
! 1128: $Ptr .= ' selected';
! 1129: }
! 1130: $Ptr .= '>No Student Selected</option>'."\n";
! 1131:
! 1132: $Ptr .= '</select></td></tr>'."\n";
! 1133:
! 1134: return $Ptr;
! 1135: }
! 1136:
! 1137: # ------ Create different Student Report
! 1138: sub StudentReport {
! 1139: my ($cache, $name)=@_;
! 1140:
! 1141: my $Str = '';
! 1142: if($cache->{$name.':error'} =~ /course/) {
! 1143: my ($username)=split(':',$name);
! 1144: $Str .= '<b><font color="blue">No course data for student </font>';
! 1145: $Str .= '<font color="red">'.$username.'.</font></b><br>';
! 1146: return $Str;
! 1147: }
! 1148:
! 1149: $Str .= "<table border=2><tr><th> \# </th><th> Set Title </th>";
! 1150: $Str .= '<th> Results </th><th> Tries </th></tr>'."\n";
! 1151:
! 1152: my $codes;
! 1153: my $attempts;
! 1154: foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
! 1155: if($cache->{'StudentAssessmentMap'} ne 'All Maps' &&
! 1156: $cache->{'StudentAssessmentMap'} ne $cache->{$sequence.':title'}) {
! 1157: next;
! 1158: }
! 1159:
! 1160: $Str .= '<tr><td>'.$sequence.'</td>';
! 1161: $Str .= '<td>'.$cache->{$sequence.':title'}.'</td>';
! 1162:
! 1163: $codes = '';
! 1164: $attempts = '';
! 1165: foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
! 1166: my $problem = $cache->{$problemID.':problem'};
! 1167: my $LatestVersion = $cache->{$name.':version:'.$problem};
! 1168:
! 1169: # Output dashes for all the parts of this problem if there
! 1170: # is no version information about the current problem.
! 1171: if(!$LatestVersion) {
! 1172: foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 1173: $problemID.
! 1174: ':parts'})) {
! 1175: $codes .= "-,";
! 1176: $attempts .= "0,";
! 1177: }
! 1178: next;
! 1179: }
! 1180:
! 1181: my %partData=undef;
! 1182: # Initialize part data, display skips correctly
! 1183: # Skip refers to when a student made no submissions on that
! 1184: # part/problem.
! 1185: foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 1186: $problemID.
! 1187: ':parts'})) {
! 1188: $partData{$part.':tries'}=0;
! 1189: $partData{$part.':code'}='-';
! 1190: }
! 1191:
! 1192: # Looping through all the versions of each part, starting with the
! 1193: # oldest version. Basically, it gets the most recent
! 1194: # set of grade data for each part.
! 1195: for(my $Version=1; $Version<=$LatestVersion; $Version++) {
! 1196: foreach my $part (split(/\:/,$cache->{$sequence.':'.
! 1197: $problemID.
! 1198: ':parts'})) {
! 1199:
! 1200: if(!defined($cache->{$name.":$Version:$problem".
! 1201: ":resource.$part.solved"})) {
! 1202: # No grade for this submission, so skip
! 1203: next;
! 1204: }
! 1205:
! 1206: my $tries=0;
! 1207: my $code='U';
! 1208:
! 1209: $tries = $cache->{$name.":$Version:$problem".
! 1210: ":resource.$part.tries"};
! 1211: $partData{$part.':tries'}=($tries) ? $tries : 0;
! 1212:
! 1213: my $val = $cache->{$name.":$Version:$problem".
! 1214: ":resource.$part.solved"};
! 1215: if ($val eq 'correct_by_student') {$code = 'Y';}
! 1216: elsif ($val eq 'correct_by_override') {$code = 'y';}
! 1217: elsif ($val eq 'incorrect_attempted') {$code = 'N';}
! 1218: elsif ($val eq 'incorrect_by_override'){$code = 'N';}
! 1219: elsif ($val eq 'excused') {$code = 'x';}
! 1220: $partData{$part.':code'}=$code;
! 1221: }
! 1222: }
! 1223:
! 1224: # Loop through all the parts for the current problem in the
! 1225: # correct order and prepare the output
! 1226: foreach (split(/\:/,$cache->{$sequence.':'.$problemID.
! 1227: ':parts'})) {
! 1228: $codes .= $partData{$_.':code'}.',';
! 1229: $attempts .= $partData{$_.':tries'}.',';
! 1230: }
! 1231: }
! 1232: $codes =~ s/,$//;
! 1233: $attempts =~ s/,$//;
! 1234: $Str .= '<td>'.$codes.'</td>';
! 1235: $Str .= '<td>'.$attempts.'</td>';
! 1236: $Str .= '</tr>'."\n";
! 1237: }
! 1238:
! 1239: $Str .= '</table>'."\n";
! 1240:
! 1241: return $Str;
! 1242: }
! 1243:
! 1244: #---- END Student Assessment Web Page ----------------------------------------
! 1245:
! 1246: #---- Menu Web Page ----------------------------------------------------------
! 1247:
! 1248: sub Title {
! 1249: my ($downloadTime)=@_;
! 1250:
! 1251: my $Ptr = '';
! 1252:
! 1253: $Ptr .= '<html><head><title>LON-CAPA Statistics</title></head>'."\n";
! 1254: $Ptr .= '<body bgcolor="#FFFFFF">'."\n";
! 1255: $Ptr .= '<script>window.focus(); window.width=500;window.height=500;';
! 1256: $Ptr .= '</script>'."\n";
! 1257: $Ptr .= '<img align=right src=/adm/lonIcons/lonlogos.gif>'."\n";
! 1258: $Ptr .= '<h1> Course : "';
! 1259: $Ptr .= $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
! 1260: $Ptr .= '"</h1>'."\n";
! 1261: $Ptr .= '<h3>'.$downloadTime.'</h3>';
! 1262:
! 1263: return $Ptr;
! 1264: }
! 1265:
! 1266: sub CreateMenuForm {
! 1267: my ($cache)=@_;
! 1268: my $Ptr = '<table border="0">';
! 1269: $Ptr .= '<tr><td><input type="submit" name="ProblemStatistics" ';
! 1270: $Ptr .= 'value="Problem Stats"/>';
! 1271: $Ptr .= '</td></tr>'."\n";
! 1272:
! 1273: if(defined($cache->{'OptionResponses'})) {
! 1274: $Ptr .= '<tr><td><input type="submit" name="ProblemAnalysis" ';
! 1275: $Ptr .= 'value="Problem Analysis"/>';
! 1276: $Ptr .= '</td></tr>'."\n";
! 1277: }
! 1278:
! 1279: $Ptr .= '<tr><td><input type="submit" name="StudentAssessment" ';
! 1280: $Ptr .= 'value="Student Assessment"/>';
! 1281: $Ptr .= '</td></tr>'."\n";
! 1282: #$Ptr .= '<input type="submit" name="ActivityLog" value="Activity Log"/>';
! 1283:
! 1284: $Ptr .= '</table>'."\n";
! 1285:
! 1286: return $Ptr;
! 1287: }
! 1288:
! 1289: #---- END Menu Web Page ------------------------------------------------------
! 1290:
! 1291: #---- HELPER FUNCTIONS -------------------------------------------------------
! 1292:
! 1293: sub CheckFormElement {
! 1294: my ($cache, $ENVName, $cacheName, $default)=@_;
! 1295:
! 1296: if(defined($ENV{'form.'.$ENVName})) {
! 1297: $cache->{$cacheName} = $ENV{'form.'.$ENVName};
! 1298: } elsif(!defined($cache->{$cacheName})) {
! 1299: $cache->{$cacheName} = $default;
! 1300: }
! 1301:
! 1302: return;
! 1303: }
! 1304:
! 1305: sub ProcessFormData{
! 1306: my ($cacheDB, $isCached)=@_;
! 1307: my %cache;
! 1308:
! 1309: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
! 1310: # Select page to display
! 1311: if(defined($ENV{'form.ProblemStatistics'}) ||
! 1312: defined($ENV{'form.ProblemStatisticsRecalculate'}) ||
! 1313: defined($ENV{'form.DisplayCSVFormat'})) {
! 1314: $cache{'GoToPage'} = 'ProblemStatistics';
! 1315: &CheckFormElement(\%cache, 'DisplayCSVFormat',
! 1316: 'DisplayFormat', 'Display Table Format');
! 1317: &CheckFormElement(\%cache, 'Ascend','ProblemStatisticsAscend',
! 1318: 'Ascending');
! 1319: &CheckFormElement(\%cache, 'Maps', 'ProblemStatisticsMap',
! 1320: 'All Maps');
! 1321: } elsif(defined($ENV{'form.ProblemAnalysis'})) {
! 1322: $cache{'GoToPage'} = 'ProblemAnalysis';
! 1323: &CheckFormElement(\%cache, 'Interval', 'Interval', '1');
! 1324: } elsif(defined($ENV{'form.StudentAssessment'}) ||
! 1325: defined($ENV{'form.CreateStudentAssessment'}) ||
! 1326: defined($ENV{'form.NextStudent'}) ||
! 1327: defined($ENV{'form.PreviousStudent'})) {
! 1328: $cache{'GoToPage'} = 'StudentAssessment';
! 1329: if(defined($ENV{'form.NextStudent'})) {
! 1330: $cache{'StudentAssessmentMove'} = 'next';
! 1331: } elsif(defined($ENV{'form.PreviousStudent'})) {
! 1332: $cache{'StudentAssessmentMove'} = 'previous';
! 1333: } else {
! 1334: $cache{'StudentAssessmentMove'} = 'selected';
! 1335: }
! 1336: &CheckFormElement(\%cache, 'Maps', 'StudentAssessmentMap',
! 1337: 'All Maps');
! 1338:
! 1339: &CheckFormElement(\%cache, 'Students', 'StudentAssessmentStudent',
! 1340: 'No Student Selected');
! 1341: } elsif(defined($ENV{'form.DoDiffGraph'})) {
! 1342: $cache{'GoToPage'} = 'DoDiffGraph';
! 1343: } elsif(defined($ENV{'form.PercentWrongGraph'})) {
! 1344: $cache{'GoToPage'} = 'PercentWrongGraph';
! 1345: } elsif(defined($ENV{'form.ActivityLog'})) {
! 1346: $cache{'GoToPage'} = 'ActivityLog';
! 1347: } else {
! 1348: $cache{'GoToPage'} = 'Menu';
! 1349: }
! 1350:
! 1351: &CheckFormElement(\%cache, 'Status', 'Status', 'Active');
! 1352:
! 1353: foreach (keys(%ENV)) {
! 1354: if(/form\.Analyze:::/) {
! 1355: $cache{'GoToPage'} = 'Analyze';
! 1356: my ($uri, $title, $part, $problem);
! 1357: (undef, $uri, $title, $part, $problem)=split(':::', $_);
! 1358: $cache{'AnalyzeURI'} = $uri;
! 1359: $cache{'AnalyzeTitle'} = $title;
! 1360: $cache{'AnalyzePart'} = $part;
! 1361: $cache{'AnalyzeProblem'} = $problem;
! 1362:
! 1363: &CheckFormElement(\%cache, 'Interval', 'Interval', '1');
! 1364: }
! 1365: }
! 1366: }
! 1367:
! 1368: return;
! 1369: }
! 1370:
! 1371: =pod
! 1372:
! 1373: =item &SortStudents()
! 1374:
! 1375: Determines which students to display and in which order. Which are
! 1376: displayed are determined by their status(active/expired). The order
! 1377: is determined by the sort button pressed (default to username). The
! 1378: type of sorting is username, lastname, or section.
! 1379:
! 1380: =over 4
! 1381:
! 1382: Input: $students, $CacheData
! 1383:
! 1384: $students: A array pointer to a list of students (username:domain)
! 1385:
! 1386: $CacheData: A pointer to the hash tied to the cached data
! 1387:
! 1388: Output: \@order
! 1389:
! 1390: @order: An ordered list of students (username:domain)
! 1391:
! 1392: =back
! 1393:
! 1394: =cut
! 1395:
! 1396: sub SortStudents {
! 1397: my ($students,$cache)=@_;
! 1398:
! 1399: my @sorted1Students=();
! 1400: foreach (@$students) {
! 1401: push(@sorted1Students, $_);
! 1402: }
! 1403: # my ($end,$start)=split(/\:/,$cache->{$_.':date'});
! 1404: # my $active=1;
! 1405: # my $now=time;
! 1406: # my $Status=$cache->{'form.Status'};
! 1407: # $Status = ($Status) ? $Status : 'Active';
! 1408: # if((($end) && $now > $end) && (($Status eq 'Active'))) {
! 1409: # $active=0;
! 1410: # }
! 1411: # if(($Status eq 'Expired') && ($end == 0 || $now < $end)) {
! 1412: # $active=0;
! 1413: # }
! 1414: # if($active) {
! 1415: # push(@sorted1Students, $_);
! 1416: # }
! 1417: # }
! 1418:
! 1419: my $Pos = $cache->{'form.ChartSort'};
! 1420: my %sortData;
! 1421: if($Pos eq 'Last Name') {
! 1422: for(my $index=0; $index<scalar @sorted1Students; $index++) {
! 1423: $sortData{$cache->{$sorted1Students[$index].':fullname'}}=
! 1424: $sorted1Students[$index];
! 1425: }
! 1426: } elsif($Pos eq 'Section') {
! 1427: for(my $index=0; $index<scalar @sorted1Students; $index++) {
! 1428: $sortData{$cache->{$sorted1Students[$index].':section'}.
! 1429: $sorted1Students[$index]}=$sorted1Students[$index];
1.1 albertel 1430: }
1.27 ! stredwic 1431: } else {
! 1432: # Sort by user name
! 1433: for(my $index=0; $index<scalar @sorted1Students; $index++) {
! 1434: $sortData{$sorted1Students[$index]}=$sorted1Students[$index];
1.1 albertel 1435: }
1436: }
1.27 ! stredwic 1437:
! 1438: my @order = ();
! 1439: foreach my $key (sort(keys(%sortData))) {
! 1440: push (@order,$sortData{$key});
! 1441: }
! 1442:
! 1443: return \@order;
! 1444: }
! 1445:
! 1446: sub PrepareData {
! 1447: my ($c, $cacheDB)=@_;
! 1448:
! 1449: # Test for access to the cache data
! 1450: my $isCached=0;
! 1451: my $courseID=$ENV{'request.course.id'};
! 1452: my $isRecalculate=0;
! 1453: if(defined($ENV{'form.ProblemStatisticsRecalculate'}) ||
! 1454: defined($ENV{'form.ChartRecalculate'})) {
! 1455: $isRecalculate=1;
! 1456: }
! 1457:
! 1458: $isRecalculate=1;
! 1459:
! 1460: $isCached=&Apache::loncoursedata::TestCacheData($cacheDB, $isRecalculate);
! 1461: if($isCached < 0) {
! 1462: return "Unable to tie hash to db file.";
! 1463: }
! 1464: &ProcessFormData($cacheDB, $isCached);
! 1465:
! 1466: # Download class list information if not using cached data
! 1467: my %cache;
! 1468: my @students=();
! 1469: if(!$isCached) {
! 1470: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
! 1471: return "Unable to tie hash to db file.";
! 1472: }
! 1473:
! 1474: my $processTopResourceMapReturn=
! 1475: &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c);
! 1476: if($processTopResourceMapReturn ne 'OK') {
! 1477: untie(%cache);
! 1478: return $processTopResourceMapReturn;
! 1479: }
! 1480:
! 1481: if($c->aborted()) {
! 1482: untie(%cache);
! 1483: return 'aborted';
! 1484: }
! 1485:
! 1486: my $classlist=&Apache::loncoursedata::DownloadStudentNamePIDSection(
! 1487: $courseID,
! 1488: $c);
! 1489: my ($checkForError)=keys(%$classlist);
! 1490: if($checkForError =~ /^(con_lost|error|no_such_host)/i ||
! 1491: defined($classlist->{'error'})) {
! 1492: untie(%cache);
! 1493: return "Error getting student data.";
! 1494: }
! 1495:
! 1496: if($c->aborted()) {
! 1497: untie(%cache);
! 1498: return 'aborted';
! 1499: }
! 1500:
! 1501: # Active is a temporary solution, remember to change
! 1502: @students=&Apache::loncoursedata::ProcessClassList(\%cache,
! 1503: $classlist,
! 1504: $courseID,
! 1505: 'Active', $c);
! 1506:
! 1507: if($c->aborted()) {
! 1508: untie(%cache);
! 1509: return 'aborted';
! 1510: }
! 1511:
! 1512: untie(%cache);
! 1513: } else {
! 1514: if(!$c->aborted() && tie(%cache,'GDBM_File',$cacheDB,
! 1515: &GDBM_READER,0640)) {
! 1516: @students=split(/:::/,$cache{'NamesOfStudents'});
! 1517: } else {
! 1518: return 'aborted';
! 1519: }
! 1520: }
! 1521:
! 1522: return ('OK', $isCached, \@students);
! 1523: }
! 1524:
! 1525: # Create progress
! 1526: sub Create_PrgWin {
! 1527: $r->print(<<ENDPOP);
! 1528: <script>
! 1529: popwin=open('','popwin','width=400,height=100');
! 1530: popwin.document.writeln('<html><body bgcolor="#88DDFF">'+
! 1531: '<title>LON-CAPA Statistics</title>'+
! 1532: '<h4>Computation Progress</h4>'+
! 1533: '<form name=popremain>'+
! 1534: '<input type=text size=35 name=remaining value=Starting></form>'+
! 1535: '</body></html>');
! 1536: popwin.document.close();
! 1537: </script>
! 1538: ENDPOP
! 1539:
! 1540: $r->rflush();
1.1 albertel 1541: }
1542:
1.27 ! stredwic 1543: # update progress
! 1544: sub Update_PrgWin {
! 1545: my ($totalStudents,$index,$name)=@_;
! 1546: $r->print('<script>popwin.document.popremain.remaining.value="'.
! 1547: 'Computing '.$index.'/'.$totalStudents.': '.
! 1548: $name.'";</script>');
! 1549: $r->rflush();
! 1550: }
1.1 albertel 1551:
1.27 ! stredwic 1552: # close Progress Line
! 1553: sub Close_PrgWin {
! 1554: $r->print('<script>popwin.close()</script>');
! 1555: $r->rflush();
1.25 minaeibi 1556: }
1557:
1558: # For loading the colored table for display or un-colored for print
1559: sub setbgcolor {
1560: my $PrintTable=shift;
1561: undef %color;
1562: if ($PrintTable){
1563: $color{"gb"}="#FFFFFF";
1564: $color{"red"}="#FFFFFF";
1565: $color{"yellow"}="#FFFFFF";
1566: $color{"green"}="#FFFFFF";
1567: $color{"purple"}="#FFFFFF";
1568: } else {
1569: $color{"gb"}="#DDFFFF";
1570: $color{"red"}="#FFDDDD";
1571: $color{"yellow"}="#EEFFCC";
1572: $color{"green"}="#DDFFDD";
1573: $color{"purple"}="#FFDDFF";
1574: }
1.27 ! stredwic 1575:
! 1576: return;
1.1 albertel 1577: }
1578:
1.27 ! stredwic 1579: sub initial {
! 1580: undef %hash;
! 1581: undef %CachData;
! 1582: undef %GraphDat;
! 1583: undef %ConceptData;
! 1584: undef $Pos;
! 1585: undef $GData;
! 1586: }
1.19 minaeibi 1587:
1.27 ! stredwic 1588: #---- END HELPER FUNCTIONS ---------------------------------------------------
1.1 albertel 1589:
1.27 ! stredwic 1590: sub BuildProblemStatisticsPage {
! 1591: my ($cacheDB, $students)=@_;
1.1 albertel 1592:
1.27 ! stredwic 1593: my %cache;
! 1594: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1595: $r->print('<html><body>Unable to tie database.</body></html>');
! 1596: return;
! 1597: }
! 1598:
! 1599: my $Ptr = '';
! 1600: $Ptr .= '<form name="ProblemStatisticsPage" method="post" ';
! 1601: $Ptr .= 'action="/adm/statistics">'."\n";
! 1602: $Ptr .= '<table border="0"><tbody>';
! 1603: $Ptr .= '<tr><td></td><td align="left"><input type="submit" name="Menu" ';
! 1604: $Ptr .= 'value="Return to Menu" /></td></tr>'."\n";
! 1605: $r->print($Ptr);
1.22 stredwic 1606:
1.27 ! stredwic 1607: $r->print(&MapOptions(\%cache, 'ProblemStatistics'));
! 1608: $r->print(&StatusOptions());
! 1609: $r->print(&AscendOrderOptions());
! 1610: $r->print(&ProblemStatisticsButtons(\%cache));
! 1611: $r->print('</table>');
! 1612:
! 1613: $r->print(&ProblemStatisticsLegend());
! 1614:
! 1615: # my $discriminantFactor;
! 1616: # my $list;
! 1617: # foreach (@$students) {
! 1618: # ($discriminantFactor, $list) = &ExtractStudentData($_);
1.5 minaeibi 1619: # }
1.15 minaeibi 1620:
1.27 ! stredwic 1621: # my ($upper, $lower) = &Discriminant($discriminantFactor);
! 1622: # my %Header = (0,"Homework Sets Order",1,"#Stdnts",2,"Tries",3,"Mod",
! 1623: # 4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"DoDiff",
! 1624: # 9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd");
! 1625: # &BuildStatisticsTable(\%cache, $discriminantFactor, $list, \%Header);
! 1626:
! 1627: $r->print('</form>');
! 1628:
! 1629: untie(%cache);
! 1630:
! 1631: return;
! 1632: }
! 1633:
! 1634: sub BuildDiffGraph {
! 1635: my ($courseID)=@_;
! 1636:
! 1637: my $graphData = &GetGraphData('DiffGraph', $courseID);
! 1638: $r->print('<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />');
1.1 albertel 1639:
1.27 ! stredwic 1640: return;
1.15 minaeibi 1641: }
1642:
1.27 ! stredwic 1643: sub BuildWrongGraph {
! 1644: my ($courseID)=@_;
1.15 minaeibi 1645:
1.27 ! stredwic 1646: my $graphData = &GetGraphData('WrongGraph', $courseID);
! 1647: $r->print('<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />');
! 1648:
! 1649: return;
1.15 minaeibi 1650: }
1651:
1.27 ! stredwic 1652: sub BuildAnalyzePage {
! 1653: my ($cacheDB, $students, $courseID)=@_;
1.19 minaeibi 1654:
1.27 ! stredwic 1655: my %cache;
! 1656: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1657: $r->print('<html><body>Unable to tie database.</body></html>');
! 1658: return;
1.15 minaeibi 1659: }
1.1 albertel 1660:
1.27 ! stredwic 1661: &ShowOpGraph(\%cache, $students, $courseID);
1.1 albertel 1662:
1.27 ! stredwic 1663: untie(%cache);
1.26 minaeibi 1664:
1.27 ! stredwic 1665: return;
1.1 albertel 1666: }
1.21 minaeibi 1667:
1.27 ! stredwic 1668: sub BuildProblemAnalysisPage {
! 1669: my ($cacheDB)=@_;
1.1 albertel 1670:
1.27 ! stredwic 1671: my %cache;
! 1672: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1673: $r->print('<html><body>Unable to tie database.</body></html>');
! 1674: return;
1.1 albertel 1675: }
1.27 ! stredwic 1676:
! 1677: $r->print('<form name="ProblemAnalysisPage" method="post" ');
! 1678: $r->print('action="/adm/statistics">'."\n");
! 1679: $r->print('<tr><td></td><td align="left"><input type="submit" ');
! 1680: $r->print('name="Menu" value="Return to Menu" /></td></tr>'."\n");
! 1681: $r->print(&IntervalOptions());
! 1682: $r->print(&OptionResponseTable(\%cache));
! 1683: $r->print('</form>'."\n");
! 1684:
! 1685: untie(%cache);
! 1686:
! 1687: return;
1.1 albertel 1688: }
1689:
1.27 ! stredwic 1690: sub BuildStudentAssessmentPage {
! 1691: my ($cacheDB, $students, $courseID)=@_;
1.15 minaeibi 1692:
1.27 ! stredwic 1693: my %cache;
1.1 albertel 1694:
1.27 ! stredwic 1695: my $Ptr = '';
! 1696: $Ptr .= '<form name="StudentAssessmentPage" method="post" ';
! 1697: $Ptr .= 'action="/adm/statistics">'."\n";
! 1698: $Ptr .= '<table border="0"><tbody>';
! 1699: $Ptr .= '<tr><td></td><td align="left"><input type="submit" name="Menu" ';
! 1700: $Ptr .= 'value="Return to Menu" /></td></tr>'."\n";
! 1701: $r->print($Ptr);
1.5 minaeibi 1702:
1.27 ! stredwic 1703: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1704: $r->print('<html><body>Unable to tie database.</body></html>');
! 1705: return;
1.5 minaeibi 1706: }
1707:
1.27 ! stredwic 1708: my $selectedName = $cache{'StudentAssessmentStudent'};
! 1709: for(my $index=0; $index<(scalar @$students); $index++) {
! 1710: my ($username) = split(':', $students->[$index]);
! 1711: if($username eq $selectedName) {
! 1712: if($cache{'StudentAssessmentMove'} eq 'next') {
! 1713: if($index == ((scalar @$students) - 1)) {
! 1714: ($selectedName) = split(':',$students->[0]);
! 1715: } else {
! 1716: ($selectedName) = split(':',$students->[$index+1]);
! 1717: }
! 1718: } elsif($cache{'StudentAssessmentMove'} eq 'previous') {
! 1719: if($index == 0) {
! 1720: ($selectedName) = split(':',
! 1721: $students->[(scalar @$students)-1]);
! 1722: } else {
! 1723: ($selectedName)=split(':',$students->[$index-1]);
! 1724: }
! 1725: }
! 1726: last;
! 1727: }
1.1 albertel 1728: }
1.27 ! stredwic 1729:
! 1730: $r->print(&MapOptions(\%cache, 'StudentAssessment'));
! 1731: $r->print(&StudentOptions($students, $selectedName));
! 1732:
! 1733: $Ptr = '<tr><td></td><td align="left">';
! 1734: $Ptr .= '<input type="submit" name="CreateStudentAssessment" ';
! 1735: $Ptr .= 'value="Create Student Report" />';
! 1736: $Ptr .= '   ';
! 1737: $Ptr .= '<input type="submit" name="PreviousStudent" ';
! 1738: $Ptr .= 'value="Previous Student" />';
! 1739: $Ptr .= '   ';
! 1740: $Ptr .= '<input type="submit" name="NextStudent" ';
! 1741: $Ptr .= 'value="Next Student" />';
! 1742: $Ptr .= '   ';
! 1743: $Ptr .= '</td></tr></tbody></table></form>'."\n";
! 1744: $r->print($Ptr);
! 1745:
! 1746: untie(%cache);
! 1747:
! 1748: if($selectedName eq 'No Student Selected') {
! 1749: $r->print('<h3><font color=blue>WARNING: ');
! 1750: $r->print('Please select a student</font></h3>');
! 1751: return;
1.1 albertel 1752: }
1753:
1.27 ! stredwic 1754: my $name = '';
! 1755: foreach (@$students) {
! 1756: my ($currentName) = split(':',$_);
! 1757: if($currentName eq $selectedName) {
! 1758: $name = $_;
! 1759: last;
! 1760: }
! 1761: }
! 1762: if($name eq '') {
! 1763: $r->print('<h3><font color=blue>ERROR: Unknown student selected.');
! 1764: $r->print('</font></h3>');
! 1765: return;
! 1766: }
1.1 albertel 1767:
1.27 ! stredwic 1768: my $courseData =
! 1769: &Apache::loncoursedata::DownloadStudentCourseInformation($name,
! 1770: $courseID);
! 1771: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
! 1772: &Apache::loncoursedata::ProcessStudentData(\%cache,
! 1773: $courseData, $name);
! 1774: untie(%cache);
1.1 albertel 1775: }
1776:
1.27 ! stredwic 1777: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1778: $Ptr .= 'Could not tie database.';
! 1779: return $Ptr;
1.1 albertel 1780: }
1.27 ! stredwic 1781: $r->print(&StudentReport(\%cache, $name));
! 1782: untie(%cache);
1.1 albertel 1783:
1.27 ! stredwic 1784: return;
1.1 albertel 1785: }
1786:
1.27 ! stredwic 1787: sub BuildMenu {
! 1788: my ($cacheDB)=@_;
! 1789:
! 1790: my %cache;
! 1791: unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1792: $r->print('<html><body>Unable to tie database.</body></html>');
! 1793: return;
! 1794: }
! 1795:
! 1796: $r->print('<form name="Menu" method="post" action="/adm/statistics" >');
! 1797: $r->print(&CreateMenuForm(\%cache));
! 1798: $r->print('</form>'."\n");
! 1799:
! 1800: untie(%cache);
! 1801:
! 1802: return;
! 1803: }
1.1 albertel 1804:
1805: # ================================================================ Main Handler
1806:
1807: sub handler {
1808: $r=shift;
1.27 ! stredwic 1809: &initial();
1.1 albertel 1810:
1.27 ! stredwic 1811: unless(&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
! 1812: $ENV{'user.error.msg'}=
! 1813: $r->uri.":vgr:0:0:Cannot view grades for complete course";
! 1814: return HTTP_NOT_ACCEPTABLE;
! 1815: }
! 1816:
! 1817: # Set document type for header only
! 1818: if($r->header_only) {
! 1819: if ($ENV{'browser.mathml'}) {
! 1820: $r->content_type('text/xml');
! 1821: } else {
! 1822: $r->content_type('text/html');
! 1823: }
! 1824: &Apache::loncommon::no_cache($r);
! 1825: $r->send_http_header;
! 1826: return OK;
! 1827: }
! 1828:
! 1829: unless($ENV{'request.course.fn'}) {
1.1 albertel 1830: my $requrl=$r->uri;
1.27 ! stredwic 1831: $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
! 1832: return HTTP_NOT_ACCEPTABLE;
! 1833: }
1.1 albertel 1834:
1.27 ! stredwic 1835: $r->content_type('text/html');
! 1836: $r->send_http_header;
1.1 albertel 1837:
1.27 ! stredwic 1838: my %cache;
! 1839: my $courseID=$ENV{'request.course.id'};
! 1840: my $cacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
! 1841: "_$ENV{'user.domain'}_$courseID\_statistics.db";
! 1842: my $c = $r->connection;
! 1843:
! 1844: my ($returnValue, $isCached, $students) = &PrepareData($c, $cacheDB);
! 1845: if($returnValue ne 'OK') {
! 1846: $r->print('<html><body>'.$returnValue."\n".'</body></html>');
! 1847: return OK;
! 1848: }
! 1849:
! 1850: my $downloadTime=0;
! 1851: my $GoToPage;
! 1852: if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
! 1853: $students = &SortStudents($students, \%cache);
! 1854: if(defined($cache{'time'})) {
! 1855: $downloadTime=$cache{'time'};
! 1856: } else {
! 1857: $downloadTime=localtime();
! 1858: }
! 1859: if(!defined($cache{'GoToPage'})) {
! 1860: $GoToPage = 'Menu';
! 1861: } else {
! 1862: $GoToPage = $cache{'GoToPage'};
! 1863: }
! 1864: untie(%cache);
! 1865: } else {
! 1866: $r->print('<html><body>Unable to tie database.</body></html>');
! 1867: return OK;
1.1 albertel 1868: }
1869:
1.27 ! stredwic 1870: &setbgcolor(0);
! 1871: $r->print(&Title());
! 1872:
! 1873: if($GoToPage eq 'ActivityLog') {
! 1874: &Activity();
! 1875: } elsif($GoToPage eq 'ProblemStatistics') {
! 1876: &BuildProblemStatisticsPage($cacheDB, $students);
! 1877: } elsif($GoToPage eq 'ProblemAnalysis') {
! 1878: &BuildProblemAnalysisPage($cacheDB);
! 1879: } elsif($GoToPage eq 'StudentAssessment') {
! 1880: &BuildStudentAssessmentPage($cacheDB, $students, $courseID);
! 1881: } elsif($GoToPage eq 'Analyze') {
! 1882: &BuildAnalyzePage($cacheDB, $students, $courseID);
! 1883: } elsif($GoToPage eq 'DoDiffGraph') {
! 1884: &BuildDiffGraph($courseID);
! 1885: } elsif($GoToPage eq 'PercentWrongGraph') {
! 1886: &BuildWrongGraph($courseID);
! 1887: } else {
! 1888: &BuildMenu($cacheDB);
1.1 albertel 1889: }
1.27 ! stredwic 1890:
! 1891: $r->print("\n".'</body>'."\n".'</html>');
! 1892: $r->rflush();
! 1893:
! 1894: return OK;
1.1 albertel 1895: }
1896: 1;
1897: __END__
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