Displaying 1 result from an estimated 1 matches for "interesest".
Did you mean:
intereses
2007 Aug 30
0
rpart's loss matrix in ipred
Dear R users,
I have been using the rpart procedure to predict the occurrence of
depression in a large data file. Since the prevalence is very low (5%),
I have been using classification trees with a loss matrix that penalized
false negatives more than false positives. I have become interesested in
bagging these (successful!) classification trees, and have been using
the ipred package for this. However, the ipred algorithm does not seem
to do anything with the loss matrix I specify in
control=rpart.control(method="class",cp=0,xval=0,parms=list(loss=matrix(c(0,1,10,0)))
Am...