Simon Jackson shows how to run the same model against separate groups of data in R:
Now that we can separate data for each group(s), we can fit a model to each tibble in
datausingmap()from the purrr package (alsotidyverse). We’re going to add the results to our existing tibble usingmutate()from the dplyr package (again,tidyverse). Here’s a generic version of our pipe with adjustable parts in caps:
Read the whole thing. Hat tip, R-Bloggers.