10.3 Question

1. What does the splits column contain

simple_split <- lm_split %>%
  dplyr::select(splits, id)

simple_split
## # # Monte Carlo cross-validation (0.75/0.25) with 1 resamples  
## # A tibble: 1 x 2
##   splits             id              
## * <list>             <chr>           
## 1 <split [2.2K/731]> train/test split