version 1.112, 2005/02/22 04:32:46
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version 1.114, 2005/02/22 22:51:16
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Line 303 sub numerical_plot_percent {
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Line 303 sub numerical_plot_percent {
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# |
# |
my $total = $stats->{'submission_count'}; |
my $total = $stats->{'submission_count'}; |
return '' if ($total == 0); |
return '' if ($total == 0); |
my $min_bin_size = $stats->{'min_abs'}; |
my $max_bins = 50; |
my $low_bin = $stats->{'lowest_ans'}-$stats->{'max_bin_size'}; |
my $lowest_percent = $stats->{'min_percent'}; |
my $high_bin = $stats->{'highest_ans'}+$stats->{'max_bin_size'}; |
my $highest_percent = $stats->{'max_percent'}; |
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my $percent_spread = $highest_percent - $lowest_percent; |
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foreach (qw/20 30 40 50 100 200/) { |
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if ($percent_spread < $_) { |
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$highest_percent =$_/2; |
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last; |
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} |
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} |
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my $bin_size = 1; |
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foreach (qw/0.01 0.05 0.1 0.5 1 2 5 10 20 25 50 100/) { |
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if ($lowest_percent/2 < $_){ |
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$bin_size = $_; |
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last; |
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} |
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} |
my @bins; |
my @bins; |
for (my $num = $low_bin;$num <= $high_bin;$num+=($min_bin_size/2)) { |
for (my $bin = -$highest_percent;$bin<0;$bin+=$bin_size) { |
push(@bins,$num); |
push (@bins,$bin); |
} |
} |
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for (my $bin = 0; $bin<$highest_percent;$bin+=$bin_size) { |
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push (@bins,$bin); |
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} |
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push(@bins,$highest_percent); |
# |
# |
my @correct; |
my @correct; |
my @incorrect; |
my @incorrect; |
Line 317 sub numerical_plot_percent {
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Line 335 sub numerical_plot_percent {
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while (my ($ans,$submissions) = each(%$responses)) { |
while (my ($ans,$submissions) = each(%$responses)) { |
while (my ($submission,$counts) = each(%$submissions)) { |
while (my ($submission,$counts) = each(%$submissions)) { |
my ($correct_count,$incorrect_count) = @$counts; |
my ($correct_count,$incorrect_count) = @$counts; |
my $scaled_value = abs(($submission-$ans)/$ans); |
my $scaled_value = 100*($submission-$ans)/abs($ans); |
my $bin=0; |
if ($scaled_value < $bins[0]) { |
for ($bin=0;$bin<$#bins;$bin++) { # not <= for a reason |
$bins[0]=$scaled_value -1; |
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} |
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my $bin; |
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for ($bin=0;$bin<$#bins;$bin++) { |
last if ($bins[$bin]>$scaled_value); |
last if ($bins[$bin]>$scaled_value); |
} |
} |
$correct[$bin]+=$correct_count; |
$correct[$bin-1]+=$correct_count; |
$incorrect[$bin]+=$incorrect_count; |
$incorrect[$bin-1]+=$incorrect_count; |
$count[$bin]+=$correct_count+$incorrect_count; |
$count[$bin-1]+=$correct_count+$incorrect_count; |
} |
} |
} |
} |
# |
# |
# Skip empty bins |
my @plot_correct = @correct; |
my (@plot_correct,@plot_incorrect,@new_bins,@new_count); |
my @plot_incorrect = @incorrect; |
my $min_skip = 2; |
my $max; |
for (my $i=0;$i<=$#bins;$i++) { |
for (my $i=0;$i<$#bins;$i++) { |
my $sum=0; |
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for (my $j=-$min_skip;$j<=$min_skip && $i+$j<=$#bins;$j++) { |
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$sum += $correct[$i+$j] + $incorrect[$i+$j]; |
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} |
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if ($sum) { |
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push(@new_bins,$bins[$i]); |
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push(@plot_correct,$correct[$i]); |
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push(@plot_incorrect,$incorrect[$i]); |
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push(@new_count,$correct[$i]+$incorrect[$i]); |
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} |
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} |
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@correct = @plot_correct; |
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@incorrect = @plot_incorrect; |
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@count = @new_count; |
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@bins = @new_bins; |
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for (my $i=0;$i<=$#bins;$i++) { |
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$plot_correct[$i] *= 100/$total; |
$plot_correct[$i] *= 100/$total; |
$plot_incorrect[$i] *= 100/$total; |
$plot_incorrect[$i] *= 100/$total; |
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if (! defined($max) || |
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$max < $plot_correct[$i]+$plot_incorrect[$i] ) { |
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$max = $plot_correct[$i]+$plot_incorrect[$i]; |
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} |
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} |
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foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) { |
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if ($max <$_) { $max = $_; last; } |
} |
} |
# |
# |
my $title = &mt('Distribution by Percent'); |
my $title = &mt('Percent Difference'); |
my @labels = (1..scalar(@bins)); |
my @labels = (1..scalar(@bins)-1); |
my $graph = &Apache::loncommon::DrawBarGraph |
my $graph = &Apache::loncommon::DrawBarGraph |
($title,'Percent difference from correct','Number of answers', |
($title,'Percent Difference from Correct','Percent of Answers', |
100,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, |
$max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, |
{xskip=>1}); |
{xskip=>1}); |
# |
# |
my $table = $graph.$/. |
my $table = $graph.$/. |
Line 369 sub numerical_plot_differences {
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Line 381 sub numerical_plot_differences {
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# |
# |
my $total = $stats->{'submission_count'}; |
my $total = $stats->{'submission_count'}; |
return '' if ($total == 0); |
return '' if ($total == 0); |
# |
my $max_bins = 21; |
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my $min_bin_size = $stats->{'min_abs'}; |
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my $low_bin = $stats->{'lowest_ans'}-$stats->{'max_bin_size'}; |
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my $high_bin = $stats->{'highest_ans'}+$stats->{'max_bin_size'}; |
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if ($high_bin > 0 && $low_bin > -$high_bin) { |
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$low_bin = -$high_bin; |
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} elsif ($low_bin < 0 && $high_bin < -$low_bin) { |
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$high_bin = -$low_bin; |
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} |
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if (($high_bin -$low_bin)/$min_bin_size * 2 > $max_bins) { |
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$min_bin_size = abs($high_bin - $low_bin) / $max_bins * 2; |
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} |
my @bins; |
my @bins; |
my @labels; |
for (my $num = $low_bin;$num <= $high_bin;$num+=($min_bin_size/2)) { |
# Hmmmm, should switch to absolute difference |
push(@bins,$num); |
for (my $i=1;$i<=20;$i++) { |
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push(@bins,$i/2); |
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push(@labels,$i); |
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} |
} |
# |
# |
my @correct; |
my @correct; |
my @incorrect; |
my @incorrect; |
my @count; |
my @count; |
while (my ($ans,$submissions) = each(%$responses)) { |
while (my ($ans,$submissions) = each(%$responses)) { |
next if ($ans =~ /^_/); |
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while (my ($submission,$counts) = each(%$submissions)) { |
while (my ($submission,$counts) = each(%$submissions)) { |
my ($correct_count,$incorrect_count) = @$counts; |
my ($correct_count,$incorrect_count) = @$counts; |
my $value = abs($submission-$ans); |
my $scaled_value = $submission-$ans; |
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if ($scaled_value < $bins[0]) { |
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$bins[0]=$scaled_value-1; |
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} |
my $bin=0; |
my $bin=0; |
for ($bin=0;$bin<$#bins;$bin++) { # not <= for a reason |
for ($bin=0;$bin<$#bins;$bin++) { |
last if ($bins[$bin]>$value); |
last if ($bins[$bin]>$scaled_value); |
} |
} |
$correct[$bin]+=$correct_count; |
$correct[$bin-1]+=$correct_count; |
$incorrect[$bin]+=$incorrect_count; |
$incorrect[$bin-1]+=$incorrect_count; |
$count[$bin]+=$correct_count+$incorrect_count; |
$count[$bin-1]+=$correct_count+$incorrect_count; |
} |
} |
} |
} |
# |
my @plot_correct = @correct; |
my @plot_correct; |
my @plot_incorrect = @incorrect; |
my @plot_incorrect; |
my $max; |
for (my $i=0;$i<=$#bins;$i++) { |
for (my $i=0;$i<=$#bins;$i++) { |
$plot_correct[$i] = $correct[$i]*100/$total; |
$plot_correct[$i] *= 100/$total; |
$plot_incorrect[$i] = $incorrect[$i]*100/$total; |
$plot_incorrect[$i] *= 100/$total; |
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if (! defined($max) || |
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$max < $plot_correct[$i]+$plot_incorrect[$i] ) { |
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$max = $plot_correct[$i]+$plot_incorrect[$i]; |
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} |
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} |
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foreach (qw/1 5 10 15 20 25 30 40 50 75 100/) { |
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if ($max <$_) { $max = $_; last; } |
} |
} |
my $title = &mt('Distribution by Magnitude'); |
# |
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my $title = &mt('Difference between submission and correct'); |
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my @labels = (1..scalar(@bins)-1); |
my $graph = &Apache::loncommon::DrawBarGraph |
my $graph = &Apache::loncommon::DrawBarGraph |
($title,'magnitude difference from correct','Number of answers', |
($title,'Difference from Correct','Percent of Answers', |
100,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, |
$max,['#33FF00','#FF3300'],\@labels,\@plot_correct,\@plot_incorrect, |
{xskip=>1}); |
{xskip=>1}); |
# |
# |
my $table = $graph.$/. |
my $table = $graph.$/. |
Line 482 sub numerical_classify_responses {
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Line 513 sub numerical_classify_responses {
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&capa::caparesponse_get_real_response($myunit, |
&capa::caparesponse_get_real_response($myunit, |
$mysub, |
$mysub, |
\$scaled); |
\$scaled); |
&Apache::lonnet::logthis('scaled = '.$scaled.' result ='.$result); |
# &Apache::lonnet::logthis('scaled = '.$scaled.' result ='.$result); |
next if (! defined($scaled)); |
next if (! defined($scaled)); |
# next if ($result ne '6'); |
# next if ($result ne '6'); |
my $submission = $scaled; |
my $submission = $scaled; |
Line 528 sub numerical_bin_table {
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Line 559 sub numerical_bin_table {
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'<th>'.&mt('Correct').'</th>'. |
'<th>'.&mt('Correct').'</th>'. |
'<th>'.&mt('Count').'</th>'. |
'<th>'.&mt('Count').'</th>'. |
'</tr>'.$/; |
'</tr>'.$/; |
for (my $i=0;$i<scalar(@{$bins});$i++) { |
for (my $i=0;$i<scalar(@{$bins}-1);$i++) { |
my $lownum; |
my $lownum = $bins->[$i]; |
if ($i == 0) { |
if ($i == 0) { $lownum = '-∞'; } |
$lownum = 0; |
my $highnum = $bins->[$i+1]; |
} else { |
if ($i == scalar(@{$bins})-2) { $highnum = '∞'; } |
$lownum = $bins->[$i-1]; |
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} |
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my $highnum = $bins->[$i]; |
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$table .= |
$table .= |
'<tr>'. |
'<tr>'. |
'<td>'.$labels->[$i].'</td>'. |
'<td>'.$labels->[$i].'</td>'. |