my R wrangling journey
On Data Cleaning and Tidying
https://suzan.rbind.io/2018/01/dplyr-tutorial-1/
https://rladiessydney.org/courses/ryouwithme/02-cleanitup-2/
https://adv-r.hadley.nz/index.html
https://ggplot2.tidyverse.org/articles/ggplot2.html \