r random forest error - type of predictors in new data do not match

Question

I am trying to use quantile regression forest function in R (quantregForest) which is built on Random Forest package. I am getting a type mismatch error that I can\'t quite

Answer 1

I had the same problem. You can try to use small trick to equalize classes of training and test set. Bind the first row of training set to the test set and than delete it. For your example it should look like this:

    xtest <- rbind(xtrain[1, ] , xtest)
    xtest <- xtest[-1,]