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Diff for /loncom/interface/lonstatistics.pm between versions 1.19 and 1.23

version 1.19, 2002/05/16 01:27:05 version 1.23, 2002/05/30 13:09:13
Line 31 Line 31
 # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei  # 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
 # YEAR=2002  # YEAR=2002
 # 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  # 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
 # 5/12, 5/14, 5/15 Behrouz Minaei  # 5/12,5/14,5/15,5/19,5/26 Behrouz Minaei
 #  #
 ###  ###
   
Line 86  my %Header = (0,"Homework Sets Order",1, Line 86  my %Header = (0,"Homework Sets Order",1,
               9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd");                9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd");
 my %Answer = ();  my %Answer = ();
   
   
   sub unescape {
       my $str=shift;
       $str =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
       return $str;
   }
   
   sub Activity {
       my $file="/home/minaeibi/minaei";
       my $userid='billskat';
       $r->print("<br>Using $file");
       $r->rflush();
       open(FILEID, "<$file");
       my $line;
       my @allaccess;
       while ($line=<FILEID>) {
    my ($time,$machine,$what)=split(':',$line);
    #$r->print("time=$time machine=$machine:-> $what\n");
    #$r->rflush();
    $what=&unescape($what);
    my @accesses=split('&',$what);
    foreach my $access (@accesses) {
       my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
       if ($who ne $userid) { next; }
       #if (!$resource) { next; }
       push (@allaccess,unescape($access));
       #print $machine;
    }
       }
       @allaccess=sort(@allaccess);
       my $Count=0;
       foreach my $access (@allaccess) {
    my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
    $Count++;
   # $r->print("$Count ".localtime($date)." $who $resource\n");
    $r->print("<br>$Count) $date: $who --> $resource");
    $r->rflush();
    if ($post) { 
       $r->print("<br><b>Sent data ".join(':',unescape(@posts)).'</b>');
    }
       }
   }
   
   
   
 sub InitAnalysis {  sub InitAnalysis {
     my ($rid, $student)=@_;      my ($rid, $student)=@_;
     my ($uname,$udom)=split(/\:/,$student);      my ($uname,$udom)=split(/\:/,$student);
Line 174  sub ShowOpGraph { Line 219  sub ShowOpGraph {
     for (my $k=0; $k<$Int_No; $k++ ) {      for (my $k=0; $k<$Int_No; $k++ ) {
  &DrawGraph($k,$Src);   &DrawGraph($k,$Src);
     }      }
       for (my $k=0; $k<$Int_No; $k++ ) {
    &DrawTable($k);
       }
 #$Apache::lonxml::debug=1;  #$Apache::lonxml::debug=1;
 #&Apache::lonhomework::showhash(%ConceptData);  #&Apache::lonhomework::showhash(%ConceptData);
 #$Apache::lonxml::debug=0;  #$Apache::lonxml::debug=0;
Line 182  sub ShowOpGraph { Line 230  sub ShowOpGraph {
 }  }
   
   
 sub DrawGraph {  sub DrawTable {
     my ($k,$Src)=@_;      my $k=shift;
     my $Max=0;      my $Max=0;
     my @data1;      my @data1;
     my @data2;      my @data2;
     my $Correct=0;      my $Correct=0;
     my $Wrong=0;      my $Wrong=0;
     # Adjust Data and find the Max   
     for (my $n=0; $n<=$#Concepts; $n++ ) {      for (my $n=0; $n<=$#Concepts; $n++ ) {
  my $tmp=$Concepts[$n];   my $tmp=$Concepts[$n];
  $data1[$n]=$ConceptData{"$tmp.$k.true"};   $data1[$n]=$ConceptData{"$tmp.$k.true"};
Line 223  sub DrawGraph { Line 270  sub DrawGraph {
                 "\n"."<td bgcolor=#FFDDDD> ".$data2[$n]." </td>".                  "\n"."<td bgcolor=#FFDDDD> ".$data2[$n]." </td>".
                 "\n"."</tr>";                  "\n"."</tr>";
     }      }
       $Str.='<td></td><td><b>From:['.localtime($ConceptData{'Int.'.$k}).
             '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1).
             "]</b></td><td>$Correct</td><td>$Wrong</td>";
   
       $Str .= "\n".'</table>';
   
       $r->print($Str);
 #$Apache::lonxml::debug=1;  #$Apache::lonxml::debug=1;
 #&Apache::lonhomework::showhash(%ConceptData);  #&Apache::lonhomework::showhash(%ConceptData);
 #$Apache::lonxml::debug=0;  #$Apache::lonxml::debug=0;
   }
   
 #    $Str.='<td></td><td><b>From:['.localtime($ConceptData{'Int.$k'}).  
 #          '] To: ['.localtime($ConceptData{'Int.'.($k+1)}).  
 #          "]</b></td><td>$Correct</td><td>$Wrong</td>";#  
   
     $Str .= "\n".'</table>';  sub DrawGraph {
       my ($k,$Src)=@_;
       my $Max=0;
       my @data1;
       my @data2;
   
 #    $r->print($Str);      # Adjust Data and find the Max 
       for (my $n=0; $n<=$#Concepts; $n++ ) {
    my $tmp=$Concepts[$n];
    $data1[$n]=$ConceptData{"$tmp.$k.true"};
    $data2[$n]=$ConceptData{"$tmp.$k.false"};
    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;
   
     if ( $Max > 1 ) {       if ( $Max > 1 ) { 
  $Max += (10 - $Max % 10);   $Max += (10 - $Max % 10);
Line 255  sub AnalyzeProblem { Line 324  sub AnalyzeProblem {
     my $OpSel='';      my $OpSel='';
     my $CurInt = $ENV{'form.interval'};      my $CurInt = $ENV{'form.interval'};
     if ($CurInt eq '') {$CurMap = '1';}      if ($CurInt eq '') {$CurMap = '1';}
     my $Ptr = '<b>Select number of intervals</b>'."\n".      my $Ptr = '<br><b>Select number of intervals</b>'."\n".
              '<select name="interval">'."\n";                                            '<select name="interval">'."\n";                             
     for (my $n=1;$n<=7;$n++) {                for (my $n=1;$n<=7;$n++) {          
  $Ptr .= '<option';   $Ptr .= '<option';
Line 271  sub AnalyzeProblem { Line 340  sub AnalyzeProblem {
               "\n".'<tr>'.                "\n".'<tr>'.
               "\n".'<th> # </th>'.                "\n".'<th> # </th>'.
       "\n".'<th> Problem Title </th>'.        "\n".'<th> Problem Title </th>'.
       "\n".'<th> Resouse </th>'.        "\n".'<th> Resource </th>'.
       "\n".'<th> Address </th>'.        "\n".'<th> Address </th>'.
       "\n".'</tr>';        "\n".'</tr>';
   
Line 454  sub StudentReport { Line 523  sub StudentReport {
       "\n".'<th> Tries </th>'.        "\n".'<th> Tries </th>'.
       "\n".'</tr>';        "\n".'</tr>';
     my ($temp)=keys(%result);      my ($temp)=keys(%result);
     unless ($temp=~/^error\:/) {      unless ($temp=~/^(con_lost|error|no_such_host)/i) {
         foreach my $CurCol (@cols) {          foreach my $CurCol (@cols) {
     if (!$CurCol){      if (!$CurCol){
  my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1});   my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1});
Line 547  sub StudentReport { Line 616  sub StudentReport {
   
 sub CreateTable {  sub CreateTable {
     my ($Hd, $Hid)=@_;      my ($Hd, $Hid)=@_;
     if ($ENV{'form.showcsv'}) {      if ($ENV{'form.showcsv'}) { 
  if ( $Hd == 1 ) {   if ( $Hd == 1 ) {
     $r->print('<br>"'.$hash{'title_'.$Hid}.'","'.$hash{'src_'.$Hid}.'"');      $r->print('<br>"'.$hash{'title_'.$Hid}.'","'.$hash{'src_'.$Hid}.'"');
  }   }
Line 615  sub PreStatTable { Line 684  sub PreStatTable {
     $Ptr .= '<pre>'.      $Ptr .= '<pre>'.
     '<b>  #Stdnts</b>: Total Number of Students opened the problem.<br>'.       '<b>  #Stdnts</b>: Total Number of Students opened the problem.<br>'. 
     '<b>  Tries  </b>: Total Number of Tries for solving the problem.<br>'.       '<b>  Tries  </b>: Total Number of Tries for solving the problem.<br>'. 
     '<b>  Max   </b> : Maximunm Number of Tries for solving the problem.<br>'.       '<b>  Mod    </b>: Maximunm Number of Tries for solving the problem.<br>'. 
     '<b>  Avg.   </b>: Average Number of the tries. [ Tries / #Stdnts ]<br>'.      '<b>  Mean   </b>: Average Number of the tries. [ Tries / #Stdnts ]<br>'.
     '<b>  #YES   </b>: Number of students solved the problem correctly.<br>'.       '<b>  #YES   </b>: Number of students solved the problem correctly.<br>'. 
     '<b>  #yes   </b>: Number of students solved the problem by override.<br>'.      '<b>  #yes   </b>: Number of students solved the problem by override.<br>'.
     '<b>  %Wrng  </b>: Percentage of students tried to solve the problem but'.      '<b>  %Wrng  </b>: Percentage of students tried to solve the problem but'.
Line 624  sub PreStatTable { Line 693  sub PreStatTable {
 #    '  DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]<br>'. Kashy formula  #    '  DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]<br>'. Kashy formula
     '<b>  DoDiff </b>: Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]<br>'. #Gerd formula      '<b>  DoDiff </b>: Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]<br>'. #Gerd formula
     '<b>  S.D.  </b> : Standard Deviation of the tries.'.      '<b>  S.D.  </b> : Standard Deviation of the tries.'.
     '[ sqrt(sum((Xi - Avg.)^2)) / (#Stdnts-1)'.      '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'.
     ' where Xi denotes every student\'s tries ]<br>'.      ' where Xi denotes every student\'s tries ]<br>'.
     '<b>  Skew.  </b>: Skewness of the students tries.'.      '<b>  Skew.  </b>: Skewness of the students tries.'.
  ' [ (sqrt( sum((Xi - Avg.)^3) / #Stdnts)) / (S.D.^3) ]<br>'.   ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ]<br>'.
     '<b>  Dis.F. </b>: Discrimination Factor: A Standard for '.      '<b>  Dis.F. </b>: Discrimination Factor: A Standard for '.
  'evaluating the problem according to a Criterion<br>'.   'evaluating the problem according to a Criterion<br>'.
  '<b>           [Applied Criterion in %27 Upper Students - '.   '<b>           [Applied Criterion in %27 Upper Students - '.
Line 680  sub usection { Line 749  sub usection {
     my ($udom,$unam,$courseid,$ActiveFlag)=@_;      my ($udom,$unam,$courseid,$ActiveFlag)=@_;
     $courseid=~s/\_/\//g;      $courseid=~s/\_/\//g;
     $courseid=~s/^(\w)/\/$1/;      $courseid=~s/^(\w)/\/$1/;
     foreach (split(/\&/,&Apache::lonnet::reply('dump:'.  
              $udom.':'.$unam.':roles',      my %result=&Apache::lonnet::dump('roles',$udom,$unam);
              &Apache::lonnet::homeserver($unam,$udom)))){      my ($checkForResult)=keys(%result);
         my ($key,$value)=split(/\=/,$_);      if ($checkForResult=~/^(con_lost|error|no_such_host)/i) {
         $key=&Apache::lonnet::unescape($key);   return -1;
       }
       foreach my $key (keys (%result)) {
    my $value=$result{$key};
         if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {          if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {
             my $section=$1;              my $section=$1;
             if ($key eq $courseid.'_st') { $section=''; }              if ($key eq $courseid.'_st') { $section=''; }
     my ($dummy,$end,$start)=split(/\_/,&Apache::lonnet::unescape($value));      my ($dummy,$end,$start)=split(/\_/,$value);
     if ( $ActiveFlag ne 'Any' ) {      if ( $ActiveFlag ne 'Any' ) {
  my $now=time;   my $now=time;
  my $notactive=0;   my $notactive=0;
Line 735  sub ExtractStudentData { Line 807  sub ExtractStudentData {
     my $SecLimit;      my $SecLimit;
     my $MapLimit;      my $MapLimit;
     my ($temp)=keys(%result);      my ($temp)=keys(%result);
     unless ($temp=~/^error\:/) {      unless ($temp=~/^(con_lost|error|no_such_host)/i) {
         foreach my $CurCol(@cols) {          foreach my $CurCol(@cols) {
     ($PrOrd,$ResId)=split(/\:/,$CurCol);      ($PrOrd,$ResId)=split(/\:/,$CurCol);
     if ( !$CurCol ) { next; }      if ( !$CurCol ) { next; }
Line 858  sub ExtractStudentData { Line 930  sub ExtractStudentData {
 }  }
   
   
   
 # ------------------------------------------------------------ Build page table  # ------------------------------------------------------------ Build page table
 sub tracetable {  sub tracetable {
     my ($rid,$beenhere)=@_;      my ($rid,$beenhere)=@_;
Line 1144  sub Cache_Statistics { Line 1217  sub Cache_Statistics {
     my @list = ();      my @list = ();
     my $Useful;      my $Useful;
     my $UnUseful;      my $UnUseful;
   #    $r->print('<input type="hidden" name="show" value="excel" />'."\n"); 
     my %myHeader = reverse( %Header );      my %myHeader = reverse( %Header );
     #&Apache::lonnet::delenv('form_');  
     #&Apache::lonnet::delenv('test');   
     $Pos = $myHeader{$ENV{'form.sort'}};      $Pos = $myHeader{$ENV{'form.sort'}};
     if ($Pos > 0) {$Pos++;}      if ($Pos > 0) {$Pos++;}
     $p_count = 0;      $p_count = 0;
Line 1332  sub ClassList { Line 1404  sub ClassList {
     &GetStatus();      &GetStatus();
   
     $cid=$ENV{'request.course.id'};      $cid=$ENV{'request.course.id'};
     my $chome=$ENV{'course.'.$cid.'.home'};  
     my ($cdom,$cnum)=split(/\_/,$cid);      my ($cdom,$cnum)=split(/\_/,$cid);
 # ----------------------- Get first and last resource, see if there is anything  # ----------------------- Get first and last resource, see if there is anything
     $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};      $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
Line 1347  sub ClassList { Line 1418  sub ClassList {
 # my ($temp)=keys(%students);  # my ($temp)=keys(%students);
 # unless ($temp=~/^error\:/) {  # unless ($temp=~/^error\:/) {
 #    foreach my $KeyPoint(sort keys(%students)) {  #    foreach my $KeyPoint(sort keys(%students)) {
  my $classlst=&Apache::lonnet::reply('dump:'.$cdom.':'.$cnum.':classlist',$chome);  
   
  my $StudNo = 0;   my $StudNo = 0;
  my $now=time;   my $now=time;
  unless ($classlst=~/^error\:/) {  
     foreach my $KeyPoint(sort split(/\&/,$classlst)) {   my %classlist=&Apache::lonnet::dump('classlist',$cdom,$cnum);
  my ($name,$value)=split(/\=/,$KeyPoint);  
  my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));   my ($checkForError)=keys(%result);
    if($checkForError=~/^(con_lost|error|no_such_host)/i) {
       $r->print('<h1>Could not access course data</h1>');
    } else {
       foreach my $name (keys (%classlist)) {
    my $value=$classlist{$name};
    my ($end,$start)=split(/\:/,$value);
  my $active=1;   my $active=1;
  my $Status=$ENV{'form.status'};   my $Status=$ENV{'form.status'};
  $Status = ($Status) ? $Status : 'Active';   $Status = ($Status) ? $Status : 'Active';
  if ( ( ($end) && $now > $end ) &&    if ( ( ($end) && $now > $end ) && 
                      ( ($Status eq 'Active') ) ) { $active=0; }       ( ($Status eq 'Active') ) ) { $active=0; }
   
  if ( ($Status eq 'Expired') &&    if ( ($Status eq 'Expired') && 
                      ($end == 0 || $now < $end) ) { $active=0; }       ($end == 0 || $now < $end) ) { $active=0; }
   
  if ($active) {   if ($active) {
     my $thisindex=$#students+1;      my $thisindex=$#students+1;
     $name=&Apache::lonnet::unescape($name);  
     $students[$thisindex]=$name;      $students[$thisindex]=$name;
     my ($sname,$sdom)=split(/\:/,$name);      my ($sname,$sdom)=split(/\:/,$name);
     my $ssec=&usection($sdom,$sname,$cid,$Status);      my $ssec=&usection($sdom,$sname,$cid,$Status);
Line 1378  sub ClassList { Line 1453  sub ClassList {
  $StuBox{$sname}=$sdom;   $StuBox{$sname}=$sdom;
     }      }
     $StudNo++;      $StudNo++;
         }   }
     }      }
  }   }
  else {  
     $r->print('<h1>Could not access course data</h1>');  
  }   
         $r->print("Total number of students : ".($#students+1));          $r->print("Total number of students : ".($#students+1));
         $r->rflush();          $r->rflush();
 # --------------- Find all assessments and put them into some linear-like order  # --------------- Find all assessments and put them into some linear-like order
Line 1408  sub ClassList { Line 1481  sub ClassList {
 }  }
   
   
 sub ClassListnew {  
   
     &GetStatus();  
   
     $cid=$ENV{'request.course.id'};  
     my $chome=$ENV{'course.'.$cid.'.home'};  
     my ($cdom,$cnum)=split(/\_/,$cid);  
 # ----------------------- Get first and last resource, see if there is anything  
     $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};  
     $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};  
     if (($firstres) && ($lastres)) {  
   
  my %students = &Apache::lonnet::dump('classlist',$cdom,$cnum);  
  my $StudNo = 0;  
  my $now=time;  
  my ($temp)=keys(%students);  
  unless ($temp=~/^error\:/) {  
     foreach (sort keys(%students)) {  
  my ($name,$value)=split(/\=/,$_);  
  my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));  
  $name=&Apache::lonnet::unescape($name);  
  my ($sname,$sdom)=split(/\:/,$name);  
  my $active=1;  
  my $Status=$ENV{'form.status'};  
  $Status = ($Status) ? $Status : 'Active';  
  if ( ( ($end) && $now > $end ) &&   
                      ( ($Status eq 'Active') ) ) { $active=0; }  
  if ( ($Status eq 'Expired') &&   
                      ($end == 0 || $now < $end) ) { $active=0; }  
  if ($active) {  
     my $thisindex=$#students+1;  
     $name=&Apache::lonnet::unescape($name);  
     $students[$thisindex]=$name;  
     my ($sname,$sdom)=split(/\:/,$name);  
     #my %reply=&Apache::lonnet::idrget($sdom,$sname);  
     #my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname.  
     #         ':environment:lastname&generation&firstname&middlename',  
     #         &Apache::lonnet::homeserver($sname,$sdom));  
     my $ssec=&usection($sdom,$sname,$cid,$Status);  
 #    if ($ssec==-1 ) {next;}  
     if ($ssec==-1 || $ssec eq 'adm' ) {next;}  
     $ssec=($ssec) ? $ssec : '(none)';  
     #$ssec=(int($ssec)) ? int($ssec) : $ssec;  
     $section{$ssec}=$ssec;  
     if ($CurSec eq 'All Sections' || $ssec eq $CurSec) {  
  $students[$StudNo]=$name;  
  $StuBox{$sname}=$sdom;  
     }  
     $StudNo++;  
         }  
     }  
  }  
  else {  
     $r->print('<h1>Could not access course data</h1>');  
  }   
         $r->print("Total number of students : ".($#students+1));  
         $r->rflush();  
 # --------------- Find all assessments and put them into some linear-like order  
  &tracetable($firstres,'&'.$lastres.'&');  
     }  
   
 # ------------------------------------------------------------- End render page   
     else {  
  $r->print('<h3>Undefined course sequence</h3>');  
     }  
 }  
   
   
 sub Title {  sub Title {
     $r->print('<html><head><title>LON-CAPA Statistics</title></head>');      $r->print('<html><head><title>LON-CAPA Statistics</title></head>');
     $r->print('<body bgcolor="#FFFFFF">'.      $r->print('<body bgcolor="#FFFFFF">'.
Line 1493  sub Title { Line 1498  sub Title {
 sub CreateForm {  sub CreateForm {
     $r->print("\n".'<form name=stat method=post action="/adm/statistics" >');      $r->print("\n".'<form name=stat method=post action="/adm/statistics" >');
     my $content = $ENV{'form.sort'};      my $content = $ENV{'form.sort'};
     if (!($ENV{'form.showcsv'}) && #|| !($ENV{'csv'})) &&       if (!($ENV{'form.showcsv'}) && 
          ($content eq '' || $content eq 'Return to Menu')) {          ($content eq '' || $content eq 'Return to Menu')) {
  my $Ptr = '<h3>';   my $Ptr = '<h3>';
  $Ptr .= '<input type=submit name=sort value="Problem Stats"/>';   $Ptr .= '<input type=submit name=sort value="Problem Stats"/>';
  $Ptr .= '<br><br>';   $Ptr .= '<br><br>';
Line 1502  sub CreateForm { Line 1507  sub CreateForm {
  $Ptr .= '<br><br>';   $Ptr .= '<br><br>';
  $Ptr .= '<input type=submit name=sort value="Student Assessment"/>';   $Ptr .= '<input type=submit name=sort value="Student Assessment"/>';
  $Ptr .= '</h3>';   $Ptr .= '</h3>';
    #$Ptr .= '<input type=submit name=sort value="Activity Log"/>';
    #$Ptr .= '</h3>';
  $r->print( $Ptr );   $r->print( $Ptr );
     }      }
     else {      else {
Line 1530  sub Menu { Line 1537  sub Menu {
 #    $Apache::lonxml::debug=0;  #    $Apache::lonxml::debug=0;
     &Title();      &Title();
     my $InpStr = $ENV{'form.sort'};      my $InpStr = $ENV{'form.sort'};
     if ($InpStr=~/^Analyze\_/) {      if ($InpStr eq 'Activity Log') {
    &Activity();
       }    
       elsif ($InpStr=~/^Analyze\_/) {
  &ClassList();   &ClassList();
  &ShowOpGraph($InpStr,$ENV{'form.interval'});   &ShowOpGraph($InpStr,$ENV{'form.interval'});
     }      }
Line 1547  sub Menu { Line 1557  sub Menu {
     $r->rflush();      $r->rflush();
 }  }
   
   
 sub StudentOptions {  sub StudentOptions {
     my $OpSel5='';      my $OpSel5='';
     $CurStu = $ENV{'form.student'};      $CurStu = $ENV{'form.student'};
Removed from v.1.19  
changed lines
  Added in v.1.23

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