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Diff for /loncom/interface/statistics/lonproblemanalysis.pm between versions 1.66 and 1.71

version 1.66, 2004/02/13 18:25:57 version 1.71, 2004/02/19 20:17:01
Line 33  use Apache::lonhtmlcommon(); Line 33  use Apache::lonhtmlcommon();
 use Apache::loncoursedata();  use Apache::loncoursedata();
 use Apache::lonstatistics;  use Apache::lonstatistics;
 use Apache::lonlocal;  use Apache::lonlocal;
 use Apache::lonstathelpers;  use Apache::lonstathelpers();
   use Apache::lonstudentsubmissions();
 use HTML::Entities();  use HTML::Entities();
 use Time::Local();  use Time::Local();
 use Spreadsheet::WriteExcel();  use Spreadsheet::WriteExcel();
Line 146  sub BuildProblemAnalysisPage { Line 147  sub BuildProblemAnalysisPage {
             $r->print('<h3>'.$resource->{'src'}.'</h3>');              $r->print('<h3>'.$resource->{'src'}.'</h3>');
             $r->print(&Apache::lonstathelpers::render_resource($resource));              $r->print(&Apache::lonstathelpers::render_resource($resource));
             $r->rflush();              $r->rflush();
             my %Data = &get_problem_data($resource->{'src'});              my %Data = &Apache::lonstathelpers::get_problem_data
                   ($resource->{'src'});
             my $ProblemData = $Data{$current_problem->{'part'}.              my $ProblemData = $Data{$current_problem->{'part'}.
                                     '.'.                                      '.'.
                                     $current_problem->{'respid'}};                                      $current_problem->{'respid'}};
Line 159  sub BuildProblemAnalysisPage { Line 161  sub BuildProblemAnalysisPage {
                                        $ProblemData,                                         $ProblemData,
                                        \@Students);                                         \@Students);
             } elsif ($current_problem->{'resptype'} eq 'numerical') {              } elsif ($current_problem->{'resptype'} eq 'numerical') {
                 &NumericalResponseAnalysis($r,$current_problem,  #                if (exists($ENV{'form.ExcelOutput'})) {
                                            $ProblemData,\@Students);                      &Apache::lonstudentsubmissions::prepare_excel_output
                           ($r,$current_problem,$ProblemData,\@Students);
   #                } else {
   #                    &NumericalResponseAnalysis($r,$current_problem,
   #                                               $ProblemData,\@Students);
   #                }
             } else {              } else {
                 $r->print('<h2>This analysis is not supported</h2>');                  $r->print('<h2>This analysis is not supported</h2>');
             }              }
Line 176  sub BuildProblemAnalysisPage { Line 183  sub BuildProblemAnalysisPage {
     }      }
 }  }
   
   
 #########################################################  #########################################################
 #########################################################  #########################################################
 ##  ##
Line 185  sub BuildProblemAnalysisPage { Line 193  sub BuildProblemAnalysisPage {
 #########################################################  #########################################################
 sub NumericalResponseAnalysis {  sub NumericalResponseAnalysis {
     my ($r,$problem,$ProblemData,$Students) = @_;      my ($r,$problem,$ProblemData,$Students) = @_;
       $r->print('<h2>This analysis is not yet supported</h2>');
     my ($resource,$respid) = ($problem->{'resource'},      my ($resource,$respid) = ($problem->{'resource'},
                               $problem->{'respid'});                                $problem->{'respid'});
     my $analysis_html;      my $analysis_html;
Line 199  sub NumericalResponseAnalysis { Line 208  sub NumericalResponseAnalysis {
         $r->print($analysis_html);          $r->print($analysis_html);
         return;          return;
     }      }
     my $Answers = &GetStudentAnswers($r,$problem,$Students);      my ($max,$min) = &GetStudentAnswers($r,$problem,$Students);
           $r->print('Maximum = '.$max.' Minimum = '.$min);
     $r->print('<h2>This analysis is not yet supported</h2>');      my $max_students = 0;
       my %Data;
       foreach my $student (@$Students) {
           my $answer = $student->{'answer'};
           $Data{$answer}++;
           if ($max_students < $Data{$answer}) {
               $max_students = $Data{$answer};
           }
       }
       foreach (5,10,20,25,50,75,100,150,200,250,500,1000,1500,2000,2500,5000) {
           if ($max_students < $_) {
               $max_students = $_;
               last;
           }
       }
       my @Labels = sort {$a <=> $b } keys(%Data);
       $r->print('number of labels = '.scalar(@Labels));
       my @PlotData = @Data{@Labels};
       $r->print('number of PlotData = '.scalar(@PlotData));
       my $graph = 
           &Apache::loncommon::DrawXYGraph('Correct Answer Distribution',
                                           'Correct Answer',
                                           'Number of students',
                                           $max_students,
                                           undef,
                                           \@Labels,
                                           [\@PlotData],
                                           (xskip=>10));
       $r->print($graph);
       return;
 }  }
   
 sub GetStudentAnswers {  sub GetStudentAnswers {
Line 219  sub GetStudentAnswers { Line 257  sub GetStudentAnswers {
     foreach my $student (@$Students) {      foreach my $student (@$Students) {
         my $sname = $student->{'username'};          my $sname = $student->{'username'};
         my $sdom = $student->{'domain'};          my $sdom = $student->{'domain'};
         my $answer = analyze_problem_as_student($resource,          my $answer = &Apache::lonstathelpers::analyze_problem_as_student
                                                 $sname,$sdom,              ($resource,$sname,$sdom,$partid,$respid);
                                                 $partid,$respid);  
         $r->print('<tr>'.  
                   '<td>'.$sname.'</td>'.  
                   '<td>'.$sdom.'</td>'.  
                   '<td>'.$answer.'</td>'.  
                   '</tr>'."\n");  
         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,          &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                                                  &mt('last student'));                                                   &mt('last student'));
         $Answers{$sname.':'.$sdom}=$answer;          $student->{'answer'} = $answer;
     }      }
     $r->print("</table>\n");      $r->print("</table>\n");
     $r->rflush();      $r->rflush();
     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);  
     # close progress window      # close progress window
     return \%Answers;      &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
       return;
   }
   
   sub build_student_data_worksheet {
       my ($workbook,$format) = @_;
       my $rows_output = 3;
       my $cols_output = 0;
       my $worksheet  = $workbook->addworksheet('Student Data');
       $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});
       my @Headers = ('full name','username','domain','section',
                      "student\nnumber",'identifier');
       $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});
       my @Students = @Apache::lonstatistics::Students;
       my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);
       my %ids;
       foreach my $row (@$studentrows) {
           my ($mysqlid,$student) = @$row;
           $ids{$student}=$mysqlid;
       }
       foreach my $student (@Students) {
           my $name_domain = $student->{'username'}.':'.$student->{'domain'};
           $worksheet->write_row($rows_output++,0,
                             [$student->{'fullname'},
                              $student->{'username'},$student->{'domain'},
                              $student->{'section'},$student->{'id'},
                              $ids{$name_domain}]);
       }
       return $worksheet;
 }  }
   
 #########################################################  #########################################################
Line 935  sub OR_excel_sheet { Line 994  sub OR_excel_sheet {
     }      }
     #      #
     $workbook->set_tempdir('/home/httpd/perl/tmp');      $workbook->set_tempdir('/home/httpd/perl/tmp');
     #      my $format = &Apache::loncommon::define_excel_formats($workbook);
     # Define some potentially useful formats  
     my $format;  
     $format->{'header'} = $workbook->add_format(bold      => 1,   
                                                 bottom    => 1,  
                                                 align     => 'center');  
     $format->{'bold'} = $workbook->add_format(bold=>1);  
     $format->{'h1'}   = $workbook->add_format(bold=>1, size=>18);  
     $format->{'h2'}   = $workbook->add_format(bold=>1, size=>16);  
     $format->{'h3'}   = $workbook->add_format(bold=>1, size=>14);  
     $format->{'date'} = $workbook->add_format(num_format=>  
                                               'mmm d yyyy hh:mm AM/PM');  
     #      #
     # Create and populate main worksheets      # Create and populate main worksheets
     my $problem_data_sheet  = $workbook->addworksheet('Problem Data');      my $problem_data_sheet  = $workbook->addworksheet('Problem Data');
     my $student_data_sheet  = $workbook->addworksheet('Student Data');      my $student_data_sheet = &build_student_data_worksheet($workbook,$format);
     my $response_data_sheet = $workbook->addworksheet('Response Data');      my $response_data_sheet = $workbook->addworksheet('Response Data');
     foreach my $sheet ($problem_data_sheet,$student_data_sheet,      foreach my $sheet ($problem_data_sheet,$student_data_sheet,
                        $response_data_sheet) {                         $response_data_sheet) {
Line 964  sub OR_excel_sheet { Line 1012  sub OR_excel_sheet {
     if ($result ne 'okay') {      if ($result ne 'okay') {
         # Do something useful          # Do something useful
     }      }
     $result = &OR_build_student_data_worksheet($student_data_sheet,$format);  
     if ($result ne 'okay') {  
         # Do something useful  
     }  
     $result = &OR_build_response_data_worksheet($response_data_sheet,$format,      $result = &OR_build_response_data_worksheet($response_data_sheet,$format,
                                              $PerformanceData,$Foils,                                               $PerformanceData,$Foils,
                                              $ORdata);                                               $ORdata);
Line 1056  sub OR_build_problem_data_worksheet { Line 1100  sub OR_build_problem_data_worksheet {
     return 'okay';      return 'okay';
 }  }
   
 sub OR_build_student_data_worksheet {  
     my ($worksheet,$format) = @_;  
     my $rows_output = 3;  
     my $cols_output = 0;  
     $worksheet->write($rows_output++,0,'Student Data',$format->{'h3'});  
     my @Headers = ('full name','username','domain','section',  
                    "student\nnumber",'identifier');  
     $worksheet->write_row($rows_output++,0,\@Headers,$format->{'header'});  
     my @Students = @Apache::lonstatistics::Students;  
     my $studentrows = &Apache::loncoursedata::get_student_data(\@Students);  
     my %ids;  
     foreach my $row (@$studentrows) {  
         my ($mysqlid,$student) = @$row;  
         $ids{$student}=$mysqlid;  
     }  
     foreach my $student (@Students) {  
         my $name_domain = $student->{'username'}.':'.$student->{'domain'};  
         $worksheet->write_row($rows_output++,0,  
                           [$student->{'fullname'},  
                            $student->{'username'},$student->{'domain'},  
                            $student->{'section'},$student->{'id'},  
                            $ids{$name_domain}]);  
     }  
     return;  
 }  
   
 sub OR_build_response_data_worksheet {  sub OR_build_response_data_worksheet {
     my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;      my ($worksheet,$format,$PerformanceData,$Foils,$ORdata)=@_;
     my $rows_output = 3;      my $rows_output = 3;
Line 1111  sub OR_build_response_data_worksheet { Line 1129  sub OR_build_response_data_worksheet {
         }          }
         $worksheet->write($rows_output,$cols_output++,$student);          $worksheet->write($rows_output,$cols_output++,$student);
         $worksheet->write($rows_output,$cols_output++,          $worksheet->write($rows_output,$cols_output++,
                           &calc_serial($time),$format->{'date'});               &Apache::lonstathelpers::calc_serial($time),$format->{'date'});
         $worksheet->write($rows_output,$cols_output++,$award);          $worksheet->write($rows_output,$cols_output++,$award);
         $worksheet->write($rows_output,$cols_output++,$tries);          $worksheet->write($rows_output,$cols_output++,$tries);
         foreach my $foilid (@$Foils) {          foreach my $foilid (@$Foils) {
Line 1126  sub OR_build_response_data_worksheet { Line 1144  sub OR_build_response_data_worksheet {
     return;      return;
 }  }
   
   
 ##  
 ## The following is copied from datecalc1.pl, part of the   
 ## Spreadsheet::WriteExcel CPAN module.  
 ##  
 ##  
 ######################################################################  
 #  
 # Demonstration of writing date/time cells to Excel spreadsheets,  
 # using UNIX/Perl time as source of date/time.  
 #  
 # Copyright 2000, Andrew Benham, adsb@bigfoot.com  
 #  
 ######################################################################  
 #  
 # UNIX/Perl time is the time since the Epoch (00:00:00 GMT, 1 Jan 1970)  
 # measured in seconds.  
 #  
 # An Excel file can use exactly one of two different date/time systems.  
 # In these systems, a floating point number represents the number of days  
 # (and fractional parts of the day) since a start point. The floating point  
 # number is referred to as a 'serial'.  
 # The two systems ('1900' and '1904') use different starting points:  
 #  '1900'; '1.00' is 1 Jan 1900 BUT 1900 is erroneously regarded as  
 #          a leap year - see:  
 #            http://support.microsoft.com/support/kb/articles/Q181/3/70.asp  
 #          for the excuse^H^H^H^H^H^Hreason.  
 #  '1904'; '1.00' is 2 Jan 1904.  
 #  
 # The '1904' system is the default for Apple Macs. Windows versions of  
 # Excel have the option to use the '1904' system.  
 #  
 # Note that Visual Basic's "DateSerial" function does NOT erroneously  
 # regard 1900 as a leap year, and thus its serials do not agree with  
 # the 1900 serials of Excel for dates before 1 Mar 1900.  
 #  
 # Note that StarOffice (at least at version 5.2) does NOT erroneously  
 # regard 1900 as a leap year, and thus its serials do not agree with  
 # the 1900 serials of Excel for dates before 1 Mar 1900.  
 #  
 ######################################################################  
 #  
 # Calculation description  
 # =======================  
 #  
 # 1900 system  
 # -----------  
 # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 70 years after 1 Jan 1900.  
 # Of those 70 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)  
 # were leap years with an extra day.  
 # Thus there were 17 + 70*365 days = 25567 days between 1 Jan 1900 and  
 # 1 Jan 1970.  
 # In the 1900 system, '1' is 1 Jan 1900, but as 1900 was not a leap year  
 # 1 Jan 1900 should really be '2', so 1 Jan 1970 is '25569'.  
 #  
 # 1904 system  
 # -----------  
 # Unix time is '0' at 00:00:00 GMT 1 Jan 1970, i.e. 66 years after 1 Jan 1904.  
 # Of those 66 years, 17 (1904,08,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68)  
 # were leap years with an extra day.  
 # Thus there were 17 + 66*365 days = 24107 days between 1 Jan 1904 and  
 # 1 Jan 1970.  
 # In the 1904 system, 2 Jan 1904 being '1', 1 Jan 1970 is '24107'.  
 #  
 ######################################################################  
 #  
 # Copyright (c) 2000, Andrew Benham.  
 # This program is free software. It may be used, redistributed and/or  
 # modified under the same terms as Perl itself.  
 #  
 # Andrew Benham, adsb@bigfoot.com  
 # London, United Kingdom  
 # 11 Nov 2000  
 #  
 ######################################################################  
   
 # Use 1900 date system on all platforms other than Apple Mac (for which  
 # use 1904 date system).  
 my $DATE_SYSTEM = ($^O eq 'MacOS') ? 1 : 0;  
   
 #-----------------------------------------------------------  
 # calc_serial()  
 #  
 # Called with (up to) 2 parameters.  
 #   1.  Unix timestamp.  If omitted, uses current time.  
 #   2.  GMT flag. Set to '1' to return serial in GMT.  
 #       If omitted, returns serial in appropriate timezone.  
 #  
 # Returns date/time serial according to $DATE_SYSTEM selected  
 #-----------------------------------------------------------  
 sub calc_serial {  
         my $time = (defined $_[0]) ? $_[0] : time();  
         my $gmtflag = (defined $_[1]) ? $_[1] : 0;  
   
         # Divide timestamp by number of seconds in a day.  
         # This gives a date serial with '0' on 1 Jan 1970.  
         my $serial = $time / 86400;  
   
         # Adjust the date serial by the offset appropriate to the  
         # currently selected system (1900/1904).  
         if ($DATE_SYSTEM == 0) {        # use 1900 system  
                 $serial += 25569;  
         } else {                        # use 1904 system  
                 $serial += 24107;  
         }  
   
         unless ($gmtflag) {  
                 # Now have a 'raw' serial with the right offset. But this  
                 # gives a serial in GMT, which is false unless the timezone  
                 # is GMT. We need to adjust the serial by the appropriate  
                 # timezone offset.  
                 # Calculate the appropriate timezone offset by seeing what  
                 # the differences between localtime and gmtime for the given  
                 # time are.  
   
                 my @gmtime = gmtime($time);  
                 my @ltime  = localtime($time);  
   
                 # For the first 7 elements of the two arrays, adjust the  
                 # date serial where the elements differ.  
                 for (0 .. 6) {  
                         my $diff = $ltime[$_] - $gmtime[$_];  
                         if ($diff) {  
                                 $serial += _adjustment($diff,$_);  
                         }  
                 }  
         }  
   
         # Perpetuate the error that 1900 was a leap year by decrementing  
         # the serial if we're using the 1900 system and the date is prior to  
         # 1 Mar 1900. This has the effect of making serial value '60'  
         # 29 Feb 1900.  
   
         # This fix only has any effect if UNIX/Perl time on the platform  
         # can represent 1900. Many can't.  
   
         unless ($DATE_SYSTEM) {  
                 $serial-- if ($serial < 61);    # '61' is 1 Mar 1900  
         }  
         return $serial;  
 }  
   
 sub _adjustment {  
         # Based on the difference in the localtime/gmtime array elements  
         # number, return the adjustment required to the serial.  
   
         # We only look at some elements of the localtime/gmtime arrays:  
         #    seconds    unlikely to be different as all known timezones  
         #               have an offset of integral multiples of 15 minutes,  
         #               but it's easy to do.  
         #    minutes    will be different for timezone offsets which are  
         #               not an exact number of hours.  
         #    hours      very likely to be different.  
         #    weekday    will differ when localtime/gmtime difference  
         #               straddles midnight.  
         #  
         # Assume that difference between localtime and gmtime is less than  
         # 5 days, then don't have to do maths for day of month, month number,  
         # year number, etc...  
   
         my ($delta,$element) = @_;  
         my $adjust = 0;  
   
         if ($element == 0) {            # Seconds  
                 $adjust = $delta/86400;         # 60 * 60 * 24  
         } elsif ($element == 1) {       # Minutes  
                 $adjust = $delta/1440;          # 60 * 24  
         } elsif ($element == 2) {       # Hours  
                 $adjust = $delta/24;            # 24  
         } elsif ($element == 6) {       # Day of week number  
                 # Catch difference straddling Sat/Sun in either direction  
                 $delta += 7 if ($delta < -4);  
                 $delta -= 7 if ($delta > 4);  
   
                 $adjust = $delta;  
         }  
         return $adjust;  
 }  
   
 sub build_foil_index {  sub build_foil_index {
     my ($ORdata) = @_;      my ($ORdata) = @_;
     return if (! exists($ORdata->{'_Foils'}));      return if (! exists($ORdata->{'_Foils'}));
Line 1333  sub build_foil_index { Line 1172  sub build_foil_index {
         my $a1 = lc($a);           my $a1 = lc($a); 
         my $b1 = lc($b);          my $b1 = lc($b);
         if (exists($Numbers{$a1})) {          if (exists($Numbers{$a1})) {
             $a = $Numbers{$a1};              $a1 = $Numbers{$a1};
         }          }
         if (exists($Numbers{$b1})) {          if (exists($Numbers{$b1})) {
             $b = $Numbers{$b1};              $b1 = $Numbers{$b1};
         }          }
         if (($a =~/^\d+$/) && ($b =~/^\d+$/)) {          if (($a1 =~/^\d+$/) && ($b1 =~/^\d+$/)) {
             return $a <=> $b;              return $a1 <=> $b1;
         } else {          } else {
             return $a cmp $b;              return $a1 cmp $b1;
         }          }
     };      };
     my @Concepts;      my @Concepts;
Line 1617  sub Process_OR_Row { Line 1456  sub Process_OR_Row {
     return %RowData;      return %RowData;
 }  }
   
   
 sub analyze_problem_as_student {  
     my ($resource,$sname,$sdom,$partid,$respid) = @_;  
     my $url = $resource->{'src'};  
     my $symb = $resource->{'symb'};  
     my $courseid = $ENV{'request.course.id'};  
     my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze',  
                                         'grade_domain' => $sdom,  
                                         'grade_username' => $sname,  
                                         'grade_symb' => $symb,  
                                         'grade_courseid' => $courseid));  
     (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);  
     my %Answer=&Apache::lonnet::str2hash($Answ);  
     my $key = $partid.'.'.$respid.'.answer';  
     my $student_answer = $Answer{$key}->[0];  
     if (! defined($student_answer)) {  
         $student_answer = $Answer{$key}->[1];  
     }  
     return ($student_answer);  
 }  
   
 ##  
 ## get problem data and put it into a useful data structure.  
 ## note: we must force each foil and option to not begin or end with  
 ##       spaces as they are stored without such data.  
 ##  
 sub get_problem_data {  
     my ($url) = @_;  
     my $Answ=&Apache::lonnet::ssi($url,('grade_target' => 'analyze'));  
     (my $garbage,$Answ)=split(/_HASH_REF__/,$Answ,2);  
     my %Answer;  
     %Answer=&Apache::lonnet::str2hash($Answ);  
     my %Partdata;  
     foreach my $part (@{$Answer{'parts'}}) {  
         while (my($key,$value) = each(%Answer)) {  
             #  
             # Logging code:  
             if (0) {  
                 &Apache::lonnet::logthis($part.' got key "'.$key.'"');  
                 if (ref($value) eq 'ARRAY') {  
                     &Apache::lonnet::logthis('    '.join(',',@$value));  
                 } else {  
                     &Apache::lonnet::logthis('    '.$value);  
                 }  
             }  
             # End of logging code  
             next if ($key !~ /^$part/);  
             $key =~ s/^$part\.//;  
             if (ref($value) eq 'ARRAY') {  
                 if ($key eq 'options') {  
                     $Partdata{$part}->{'_Options'}=$value;  
                 } elsif ($key eq 'concepts') {  
                     $Partdata{$part}->{'_Concepts'}=$value;  
                 } elsif ($key =~ /^concept\.(.*)$/) {  
                     my $concept = $1;  
                     foreach my $foil (@$value) {  
                         $Partdata{$part}->{'_Foils'}->{$foil}->{'_Concept'}=  
                                                                       $concept;  
                     }  
                 } elsif ($key =~ /^(incorrect|answer|ans_low|ans_high)$/) {  
                     $Partdata{$part}->{$key}=$value;  
                 }  
             } else {  
                 if ($key=~ /^foil\.text\.(.*)$/) {  
                     my $foil = $1;  
                     $Partdata{$part}->{'_Foils'}->{$foil}->{'name'}=$foil;  
                     $value =~ s/(\s*$|^\s*)//g;  
                     $Partdata{$part}->{'_Foils'}->{$foil}->{'text'}=$value;  
                 } elsif ($key =~ /^foil\.value\.(.*)$/) {  
                     my $foil = $1;  
                     $Partdata{$part}->{'_Foils'}->{$foil}->{'value'}=$value;  
                 }  
             }  
         }  
     }  
     return %Partdata;  
 }  
   
 1;  1;
   
 __END__  __END__
Removed from v.1.66  
changed lines
  Added in v.1.71

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