Hello, I was just thinking about the same question. The output in CART shows an overal sensitivity and specificity of the tree built, plus cross-validation result of overall sens and spec. I find this very useful for interpretation of the value of a tree. I didn't find this in the R output? Greetings, Ward Schrooten Message: 5 Date: Fri, 22 Apr 2005 13:04:44 +0200 From: Uwe Ligges <ligges at statistik.uni-dortmund.de> Subject: Re: [R] How to know if a classification tree is predicitve or not? To: Laure Maton <maton at toulouse.inra.fr> Cc: r-help at stat.math.ethz.ch Message-ID: <4268DA4C.4070701 at statistik.uni-dortmund.de> Content-Type: text/plain; charset=us-ascii; format=flowed
Laure Maton wrote:
Hello, I would like to know how to know if a classification
tree is predictive
or not ? Is it sufficient to analyse results of cross
validation? Depends on your interpretation of "predictive", maybe you want to look at stuff like sensitivity and specificity as well. Uwe Ligges
Thanks for your help Laure Maton
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