$Count) ".localtime($date).": $who --> $res"); -# if ($post) { -# $Count++; -# $r->print("
$Count) Sent data ".join(':', -# &Apache::lonnet::unescape(@posts)).''); -# } - $r->rflush(); - } - ## push (@allaccess,unescape($access)); - #print $machine; - } - } -# @allaccess=sort(@allaccess); -# $Count=0; -# foreach my $access (@allaccess) { -# my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access); -# $Count++; -# $r->print("
$Count) $date: $who --> $resource"); -# $r->rflush(); -# if ($post) { -# $r->print("
Sent data ".join(':',unescape(@posts)).''); -# } -# } -} +lonstatistics -#---- Analyze Web Page --------------------------------------------------- +=head1 SYNOPSIS -sub InitAnalysis { - my ($uri,$part,$problem,$student,$courseID)=@_; - my ($username,$userdomain)=split(/\:/,$student); - - # Render the student's view of the problem. $Answ is the problem - # Stringafied - my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze', - 'grade_username' => $username, - 'grade_domain' => $userdomain, - 'grade_courseid' => $courseID, - 'grade_symb' => $problem)); -# my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze')); - -# (undef,$Answ)=split(/_HASH_REF__/,$Answ,2); - %Answer=(); - %Answer=&Apache::lonnet::str2hash($Answ); - -# foreach (sort(keys(%Answer))) { -# $r->print($_.' '.$Answer{$_}.'
'); -# } - - my $parts=''; - foreach my $elm (@{$Answer{"parts"}}) { - $parts.="$elm,"; - } - chop($parts); - my $conc=''; - foreach my $elm (@{$Answer{"$parts.concepts"}}) { - $conc.="$elm@"; - } - chop($conc); - - @Concepts=split(/\@/,$conc); - foreach my $concept (@{$Answer{"$parts.concepts"}}) { - foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) { - $foil_to_concept{$foil} = $concept; - #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"}; - } - } +Main handler for statistics and chart. - return; -} +=over 4 -sub Interval { - my ($part,$symb)=@_; - my $interval=$ConceptData{"Interval"}; - my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb)+1; - my $open = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb); - my $add=int(($due-$open)/$interval); - $ConceptData{'Interval.0'}=$open; - for (my $i=1;$i<$interval;$i++) { - $ConceptData{'Interval.'.$i}=$open+$i*$add; - } - $ConceptData{'Interval.'.$interval}=$due; - for (my $i=0;$i<$interval;$i++) { - for (my $n=0; $n<=$#Concepts; $n++ ) { - my $tmp=$Concepts[$n]; - $ConceptData{$tmp.'.'.$i.'.true'}=0; - $ConceptData{$tmp.'.'.$i.'.false'}=0; - } - } -} +=cut -sub ShowOpGraph { - my ($cache, $students, $courseID)=@_; - my $uri = $cache->{'AnalyzeURI'}; - my $part = $cache->{'AnalyzePart'}; - my $problem = $cache->{'AnalyzeProblem'}; - my $title = $cache->{'AnalyzeProblem'}; - my $interval = $cache->{'Interval'}; - $ConceptData{"Interval"} = $interval; +package Apache::lonstatistics; - #Initialize the option response true answers - &InitAnalysis($uri, $part, $problem, $students->[0],$courseID); +use strict; +use Apache::Constants qw(:common :http); +use vars qw( + @FullClasslist + @Students + @Sections + %StudentData + @StudentDataOrder + @SelectedStudentData + $enrollment_status); - #compute the intervals - &Interval($part,$problem); +use Apache::lonnet; +use Apache::lonhomework; +use Apache::loncommon; +use Apache::loncoursedata; +use Apache::lonhtmlcommon; +use Apache::lonmysql; +use Apache::lonlocal; +use Time::HiRes; +# +# Statistics Packages +use Apache::lonproblemanalysis(); +use Apache::lonsubmissiontimeanalysis(); +use Apache::loncorrectproblemplot(); +use Apache::lonproblemstatistics(); +use Apache::lonstudentassessment(); +use Apache::lonpercentage; +use Apache::lonstudentsubmissions(); +use Apache::lonsurveyreports(); - $title =~ s/\ /"_"/eg; - $r->print('
'.$uri.''); - $r->rflush(); - - #Java script Progress window - &Create_PrgWin(); - &Update_PrgWin("Starting to analyze problem",0,0,''); - for(my $index=0; $index<(scalar @$students); $index++) { - &Update_PrgWin(scalar @$students, $index+1, $students->[$index]); - &OpStatus($problem, $students->[$index], $courseID); - } - &Close_PrgWin(); - - $r->print('
'); - for(my $k=0; $k<$interval; $k++ ) { - &DrawGraph($k,$title); - } - for(my $k=0; $k<$interval; $k++ ) { - &DrawTable($k); - } -#$Apache::lonxml::debug=1; -#&Apache::lonhomework::showhash(%ConceptData); -#$Apache::lonxml::debug=0; - my $Answ=&Apache::lonnet::ssi($uri); - $r->print("
Here you can see the Problem:
$Answ"); -} +####################################################### +####################################################### -sub DrawTable { - my $k=shift; - my $Max=0; - my @data1; - my @data2; - my $Correct=0; - my $Wrong=0; - for (my $n=0; $n<=$#Concepts; $n++ ) { - my $tmp=$Concepts[$n]; - $data1[$n]=$ConceptData{"$tmp.$k.true"}; - $Correct+=$data1[$n]; - $data2[$n]=$ConceptData{"$tmp.$k.false"}; - $Wrong+=$data2[$n]; - my $Sum=$data1[$n]+$data2[$n]; - if ( $Max<$Sum ) {$Max=$Sum;} - } - for (my $n=0; $n<=$#Concepts; $n++ ) { - if ($data1[$n]+$data2[$n]<$Max) { - $data2[$n]+=$Max-($data1[$n]+$data2[$n]); - } - } - my $P_No = $#data1+1; -# $r->print('
From: ['.localtime($ConceptData{'Int.'.($k-1)}). -# '] To: ['.localtime($ConceptData{"Int.$k"}).']'); - my $Str = "\n".'
| # | '. - "\n".'Concept | '. - "\n".'Correct | '. - "\n".'Wrong | '. - "\n".'
|---|---|---|---|
| ".($n+1)." | ". - "\n".''.$Concepts[$n]." | ". - "\n".''.$data1[$n]." | ". - "\n".''.$data2[$n]." | ". - "\n"."From:['.localtime($ConceptData{'Int.'.$k}). - '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1). - "] | $Correct | $Wrong | "; +=pod - $Str .= "\n".'
');
-}
+=item $curr_student The student currently being examined
+=item $prev_student The student previous in the classlist
-sub Decide {
- #deciding the true or false answer belongs to each interval
- my ($type,$foil,$time)=@_;
- my $k=0;
- while ($time>$ConceptData{'Int.'.($k+1)} &&
- $k<$ConceptData{'Interval'}) {$k++;}
- $ConceptData{"$foil_to_concept{$foil}.$k.$type"}++;
-}
+=item $next_student The student next in the classlist
+=over
-#restore the student submissions and finding the result
-sub OpStatus {
- my ($problem, $student, $courseID)=@_;
- my ($username,$userdomain)=split(/':'/,$student);
- my $code='U';
- my %reshash=&Apache::lonnet::restore($problem, $courseID, $userdomain,
- $username);
- my @True = ();
- my @False = ();
- my $flag=0;
- if ($reshash{'version'}) {
- my $tries=0;
- &Apache::lonhomework::showhash(%Answer);
- for (my $version=1;$version<=$reshash{'version'};$version++) {
- my $time=$reshash{"$version:timestamp"};
-
- foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) {
- if (($key=~/\.(\w+)\.(\w+)\.submission$/)) {
- my $Id1 = $1; my $Id2 = $2;
- #check if this is a repeat submission, if so skip it
- if ($reshash{"$version:resource.$Id1.previous"}) { next; }
- #if no solved this wasn't a real submission, ignore it
- if (!defined($reshash{"$version:resource.$Id1.solved"})) {
- &Apache::lonxml::debug("skipping ");
- next;
- }
- my $Resp = $reshash{"$version:$key"};
- my %submission=&Apache::lonnet::str2hash($Resp);
- foreach (keys %submission) {
- my $Ansr = $Answer{"$Id1.$Id2.foil.value.$_"};
- if ($submission{$_}) {
- if ($submission{$_} eq $Ansr) {
- &Decide("true",$_,$time );
- }
- else {&Decide("false",$_,$time );}
- }
- }
- }
- }
- }
- }
-}
+=cut
-#---- END Analyze Web Page ----------------------------------------------
+#######################################################
+#######################################################
+#
+# Classlist variables
+#
+my $curr_student;
+my $prev_student;
+my $next_student;
-#---- Problem Statistics Web Page ---------------------------------------
+#######################################################
+#######################################################
-#------- Processing upperlist and lowerlist according to each problem
-sub ProcessDiscriminant {
- my ($List) = @_;
- my @sortedList = sort (@$List);
- my $Count = scalar @sortedList;
- my $Problem;
- my @Dis;
- my $Slvd=0;
- my $tmp;
- my $Sum1=0;
- my $Sum2=0;
- my $nIndex=0;
- my $nStudent=0;
- my %Proc=undef;
- while ($nIndex<$Count) {
- ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
- @Dis=split(/\+/,$tmp);
- my $Temp = $Problem;
- do {
- $nIndex++;
- $nStudent++;
- $Sum1 += $Dis[0];
- $Sum2 += $Dis[1];
- ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
- @Dis=split(/\+/,$tmp);
- } while ( $Problem eq $Temp && $nIndex < $Count );
-# $Proc{$Temp}=($Sum1/$nStudent).':'.$nStudent;
- $Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent);
-# $r->print("$nIndex) $Temp --> ($nStudent) $Proc{$Temp} "); - $Sum1=0; - $Sum2=0; - $nStudent=0; - } +=pod - return %Proc; -} +=item &clear_classlist_variables() +undef the following package variables: -#------- Creating Discimination factor -sub Discriminant { - my ($discriminantFactor)=@_; - my @discriminantKeys=keys(%$discriminantFactor); - my $Count = scalar @discriminantKeys; - - my $UpCnt = int(0.27*$Count); - my $low=0; - my $up=$Count-$UpCnt; - my @UpList=(); - my @LowList=(); - - $Count=0; - foreach my $key (sort(@discriminantKeys)) { - $Count++; - if($low < $UpCnt || $Count > $up) { - $low++; - my $str=$discriminantFactor->{$key}; - foreach(split(/\:/,$str)){ - if($_) { - if($low<$UpCnt) { push(@LowList,$_); } - else { push(@UpList,$_); } - } - } - } - } - my %DisUp = &ProcessDiscriminant(\@UpList); - my %DisLow = &ProcessDiscriminant(\@LowList); +=over - return (\%DisUp, \%DisLow); -} +=item @FullClasslist -sub NumericSort { - $a <=> $b; -} +=item @Students -sub CreateProblemStatisticsTableHeading { - my ($displayFormat,$sequenceSource,$sequenceTitle,$headings)=@_; - if($displayFormat eq 'Display CSV Format') { - $r->print('
"'.$sequenceTitle.'","'); - $r->print($sequenceSource.'"'); - return; - } - - $r->print('
'.$sequenceTitle.''); - - my $Result = "\n".'
| P# | '."\n"; - for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) { - $Result .= ''.''.' | '."\n"; - } - $Result .= "\n".'
|---|
'.$Pre.'---'.$Post); - &TableRow($cache,$Post,$i,$nIndex); - $nIndex++; - } - &CloseTable($cache); - } - } - else { - &CreateProblemStatisticsTableHeading($cache,0); - for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) { - my($Pre, $Post) = split(/\@/,$list[$nIndex]); - &TableRow($cache,$Post,$nIndex,$nIndex); - } - &CloseTable($cache); - } -} -=cut -sub TableRow { - my ($cache,$Str,$Idx,$RealIdx)=@_; - my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override, - $Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$Prob)=split(/\&/,$Str); - if($cache->{'DisplayFormat'} eq 'Display CSV Format') { - my ($ResId,$Dummy)=split(/\*/,$Prob); - my $Ptr = "\n".'
'. - "\n".'"'.($RealIdx+1).'",'. - "\n".'"'.$hash{'title_'.$ResId}.$Dummy.'",'. - "\n".'"'.$hash{'src_'.$ResId}.'",'. - "\n".'"'.$StdNo.'",'. - "\n".'"'.$TotalTries.'",'. - "\n".'"'.$MxTries.'",'. - "\n".'"'.$Avg.'",'. - "\n".'"'.$YES.'",'. - "\n".'"'.$Override.'",'. - "\n".'"'.$Wrng.'",'. - "\n".'"'.$DoD.'",'. - "\n".'"'.$SD.'",'. - "\n".'"'.$Sk.'",'. - "\n".'"'.$_D1.'",'. - "\n".'"'.$_D2.'"'; - $r->print("\n".$Ptr); - } else { - my $Ptr = "\n".'
| '; - $Ptr .= '#Stdnts: | '; - $Ptr .= 'Total Number of Students opened the problem.'; - $Ptr .= ' |
| '; - $Ptr .= 'Tries: | '; - $Ptr .= 'Total Number of Tries for solving the problem.'; - $Ptr .= ' |
| '; - $Ptr .= 'Mod: | '; - $Ptr .= 'Maximunm Number of Tries for solving the problem.'; - $Ptr .= ' |
| '; - $Ptr .= 'Mean: | '; - $Ptr .= 'Average Number of the tries. [ Tries / #Stdnts ]'; - $Ptr .= ' |
| '; - $Ptr .= '#YES: | '; - $Ptr .= 'Number of students solved the problem correctly.'; - $Ptr .= ' |
| '; - $Ptr .= '#yes: | '; - $Ptr .= 'Number of students solved the problem by override.'; - $Ptr .= ' |
| '; - $Ptr .= '%Wrng: | '; - $Ptr .= 'Percentage of students tried to solve the problem '; - $Ptr .= 'but still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]'; - $Ptr .= ' |
| ';
-# Kashy formula
-# ' DoDiff : Degree of Difficulty of the problem. '. -# '[ Tries/(#YES+#yes+0.1) ] '. - #Gerd formula - $Ptr .= 'DoDiff: | ';
- $Ptr .= 'Degree of Difficulty of the problem. '; - $Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]'; - $Ptr .= ' |
| '; - $Ptr .= 'S.D.: | '; - $Ptr .= 'Standard Deviation of the tries. '; - $Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) '; - $Ptr .= 'where Xi denotes every student\'s tries ]'; - $Ptr .= ' |
| '; - $Ptr .= 'Skew.: | '; - $Ptr .= 'Skewness of the students tries.'; - $Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]'; - $Ptr .= ' |
| '; - $Ptr .= 'Dis.F.: | '; - $Ptr .= 'Discrimination Factor: A Standard for evaluating the ';
- $Ptr .= 'problem according to a Criterion '; - $Ptr .= '[Applied Criterion in %27 Upper Students - '; - $Ptr .= 'Applied the same Criterion in %27 Lower Students] '; - $Ptr .= '1st Criterion for Sorting the Students: '; - $Ptr .= 'Sum of Partial Credit Awarded / Total Number of Tries '; - $Ptr .= '2nd Criterion for Sorting the Students: '; - $Ptr .= 'Total number of Correct Answers / Total Number of Tries'; - $Ptr .= ' |
Select number of intervals'."\n". - ''."\n"; - - return $Ptr; + # + return; } -sub OptionResponseTable { - my ($cache)=@_; - my $Str = ''; - $Str .= '
Option Response Problems in this course:'."\n"; - $Str .= '
'."\n"; - $Str .= "
| \# | Problem Title | "; - $Str .= 'Resource | Analysis |
|---|---|---|---|
| '.$number.' | '; - $Str .= ''.$Temp.' | '; - $Str .= ''.$uri.' | '; - $Str .= '