minor optimization in C45ClassifierTree there's really way more room for improvement there
minor optimization in C45ClassifierTree
there's really way more room for improvement there

geektoni/shogun,geektoni/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,geektoni/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,shogun-toolbox/shogun,geektoni/shogun,geektoni/shogun,geektoni/shogun,shogun-toolbox/shogun