CODEWITHSUNDEEP
r
floodking
floodking

Reputation: 277

sampsize error in Random Forests

I want to set different sampsize for randomForest in R. I expect to see 3 different RF return, but the error occured in R "(list) object cannot be coerced to type 'integer'"

and my code is as follows

    sampsize_vect<-vector("list",3)
    sampsize_vect[[1]]<- rep(6670,3)
    sampsize_vect[[2]]<- c(1000)
    sampsize_vect[[3]]<- c(5000,5000)
    for (i in 1:3) {
    RF <- randomForest (x,y,sampsize=sampsize_vect[i],node.size=3,do.trace=FALSE,importance=TRUE,ntree=150,,forest=TRUE)
    print(RF)
    }

Why this happened and how to solve this problem.

Upvotes: 0

Views: 1218

Answers (1)

joran
joran

Reputation: 173537

It doesn't have anything to do with the random forests. You simply used [ when you should have used [[ (or vice versa, I suppose).

Change sampsize = sampsize_vect[i] to sampsize = sampsize_vect[[i]]]. Always remember, with lists [[ selects an element while [ selects a sub-list.

Upvotes: 2

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