/tags/purrr/ Recent content in Purrr on E. Visel Hugo -- gohugo.io en-us Sun, 20 Jan 2019 00:00:00 +0000 /blog/recursion/ Sun, 20 Jan 2019 00:00:00 +0000 /blog/recursion/ at_depth I love purrr.1 Aside from its anonymous function notation, one of the functions that made me love the package was at_depth, which iterates across a list at a specified level of nesting. It has since been deprecated in favor of modify_depth, which is more powerful, but is significantly more finicky. The additional power is because the .depth parameter can now be passed a negative integer to index up from the bottom of the list. /blog/anonymous-functions/ Sun, 25 Mar 2018 00:00:00 +0000 /blog/anonymous-functions/ I am a very heavy purrr user. The killer feature is clearly map_df (fairly recently rebranded as map_dfr and map_dfc for row and column binding, respectively) to iterate over a list à la lapply and simplify the result to a data frame. Thanks to the power of dplyr::bind_rows, it fixes all the drawbacks of sapply’s simplify2array behavior: It returns a data frame, not a matrix or array, so multiple types can be kept.