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symmetrization
2006 Nov 20
0
rpart
...ldn't I get simply three times the improve of the case above because?
Or is there again any normalisation?
If I use matrix(c(0,1,5,0),nrow=2) as loss matrix, I get different values. Shouldn't I get simply the same improve as in the case "matrix(c(0,3,3,0),nrow=2)" because of the symmetrizaton of the loss matrix in case of two classes and the use of the Gini criterion?
Thank you very much for your help!
Henri
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