[R] rpart node size

Kaiser Fung kfung95 at yahoo.com
Sat Nov 8 09:46:13 CET 2003

After getting an error, I figured out that there is a
minimum node size for doing classification trees with
rpart.  Surely nodes with too few observations are not
reliable.  However, I have not found any references to
how one might set the min node size.  Knowing this
number will allow me to calculate how much data I need
for the tree to get reliable results (it's expensive
to run experiments).  Any thoughts?


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