[S] confusion about prune.tree

Andrea Brown (abrown@credit.erin.utoronto.ca)
Tue, 21 Jul 1998 18:07:02 -0400


Hello.

I am calculating some regression trees but when I use prune.tree() and
best=argument I find that I don't always get back a tree the size I
indicated. Instead the tree is grown to a larger size and then the
deviances are calculated. Is this an error in the code, or does this
have something to do with a minimum default value related to the
cost-complexity paramter. I am aware that prune.tree has some bugs but
these don't seem to be related to this problem.

Thank you.

Andrea Brown
U. of Toronto at Mississagua
ph: 905-828-5452
email: abrown@credit.erin.utoronto.ca
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