# What is Generalization errror on training set. How can I see it on weka?

I get output like this ..

=== Stratified cross-validation ===
=== Summary ===

Correctly Classified Instances          85               53.125  %
Incorrectly Classified Instances        75               46.875  %
Kappa statistic                          0.0625
Mean absolute error                      0.4688
Root mean squared error                  0.6847
Relative absolute error                 93.75   %
Root relative squared error            136.9306 %
Coverage of cases (0.95 level)          53.125  %
Mean rel. region size (0.95 level)      50      %
Total Number of Instances              160


What is the generalization error here?

• To make this a statistical question (instead of a software-specific question which fall under the category of "too localized" question), you probably want to broaden the scope of your question and ask how to compute generalization error for a particular dataset and algorithm/classifier. – chl Nov 21 '12 at 21:14
• @chl Thanks for formatting .. I have been trying to search on net but specifically given a confusion matrix or the output of this kind how can I get the error ... I was also confused about the different errors provided by weka ... Sorry if I sounding stupid, just started with this thing .. – Fox-Kid Nov 21 '12 at 23:00