使用随机森林时，pdp包中的“部分”功能出错

Question

I am getting an error message when using the partial function from the pdp package on my random forest model. I am trying to plot a partial dependence plot using this package.

library(randomForest)
library(pdp)

# random forest model
set.seed(101)
model_rf <- randomForest(Rec ~ ., data = sample, importance = TRUE)

# from pdp package
p1 <- partial(model_rf, pred.var = "HDI", plot = TRUE)

Then I get this error when running into the last line:

Error: .f must be a function, not aa randomForest.formula/randomForest object

I'm not sure what .f its referring to and I have found the exact same code online where this partial function works using a random forest model.

Answer 1

The same problem bothered me as well. I will post the solution here, so that people can learn from my mistake.

I had the same error when using pdp because I also loaded the dplyr package, which resulted in pdp::partial being blocked due to name conflict. Check the conflicts and detach the package with "conflicting interest", then it should be all good.