thanks for help

I have the following expression
log(Y) ~ log(a) + log(b)+log(c)+log(d)+log(e)..........+log(z)

I wish to apply the Randomforest method (in regression) with this expression

RF.model <- randomForest(log(Y)~ ., data=RF.train,
ntree=100,importance=TRUE, na.action=na.omit)
but I have problem to set-up the right part of my equation (log(a) +
log(b)+log(c)+log(d)+log(e)..........+log(z)) in RF formula "~ .". Sorry for
the question and thanks

gianni

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