Why a code chunk do not work while it works few hours ago.No changes made

Question

The below code worked few hours ago without changing anything it shows error of 'unused arguments'

model_gbm <- finaldata %>%
  nest(-frqGroup) %>% 
  mutate(
    fit = map(data, ~ train(Eng_Class ~ ., data = .x,
                            method = "gbm",
                            trControl = control,
                            verbose = TRUE)))

Tried updating dplyr as well but same error.

Please consult [How to make a great reproducible example](https://stackoverflow.com/questions/5963269/how-to-make-a-great-r-reproducible-example). In particular we need to know what packages are loaded, what `finaldata` looks like and the complete error message. My guess is that you have since loaded another library which has a function with the same name as one of the functions you were using (nest, mutate, map or train) and it conflicts. — neilfws, May 06 '20 at 01:06

score 0 · Accepted Answer · answered May 06 '20 at 01:52

It might be due to the conflicts between the loaded packages. I would recommend you declare your preference with the assignment as

packagename::functionNames

I have added for dplyr, please add for map and train functions too.

model_gbm=finaldata %>%
  dplyr::nest(-frqGroup) %>% 
  dplyr::mutate(
    fit = map(data, ~ train(Eng_Class~.,data=.x,
                            method="gbm",
                            trControl=control,
                            verbose=TRUE)))

Why a code chunk do not work while it works few hours ago.No changes made

1 Answers1