10.6 Exercise

Create a column in simple_split that contains the training set data frame. Name the column train_set.

simple_split %>%
  dplyr::mutate(train_set = purrr::map(splits, training))
## # # Monte Carlo cross-validation (0.75/0.25) with 1 resamples  
## # A tibble: 1 x 3
##   splits             id               train_set            
## * <list>             <chr>            <list>               
## 1 <split [2.2K/731]> train/test split <tibble [2,199 × 81]>