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Level II

Partition and Pruning

I'm working with a dataset of about 27,000 rows and am trying to use 9 factors to predict a response using the partition function and a decision tree.  I'm using both k-means and validation.  When I tell JMP to Go, it will split 100-200 times, however the Split History shows me very little improvement after about 20 splits.


For what I'm trying to do, I want to back up to the 20th split, but I don't see a way to do that without either starting fresh and manually splitting 20 times, or starting at the end and manually pruning 180 times.  Is there a way to select the conditions on a specific split number?

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