fit_split missing model argument when using a workflow

Machine Learning and Modeling
7

Thanks. Credit for the reprex goes to @apreshill (here) and @Max (here).

Looks like it. That the model I defined here with tune() placeholders:

tune_spec <-
    rand_forest(mtry = tune(),
                min_n = tune()) %>% 
    set_engine("ranger") %>% 
    set_mode("classification")

which becomes part of the workflow in this step...

tuneboth_wf <-
  workflow() %>% 
    add_recipe(tune_rec) %>% 
    add_model(tune_spec)