I have been using WEKA 3.2.3 and have noticed the following anomoly.
When using classifier J48 (and possibly others) with a percentage split
option the decision tree that is displayed is not consistent with the
percentage split. Rather, the displayed tree appears to be one which is
generated from the entire input data set (as opposed to just that
percentage allocated for training). Is this an intended effect, or do I
have a misunderstanding of what should be occuring with the system ?