r4ds - SERP Analysis

https://r4ds.hadley.nz/

https://r4ds.had.co.nz/

https://posit.co/resources/videos/r4ds-online-learning-community-improvements-to-self-taught-data-science-the-critical-need-for-diversity-equity-and-inclusion/

https://www.ebay.com/shop/r4-ds%3F_nkw%3Dr4%2Bds

https://github.com/hadley/r4ds

https://www.reddit.com/r/nds/comments/178corp/how_do_i_setup_r4_card_for_nds_in_2023/

https://en.wikipedia.org/wiki/R4_cartridge

https://ppbds.github.io/r4ds.tutorials/

https://cran.r-project.org/package%3Dr4ds.tutorials