Useful links
Here we provide some additional links
Some tutorials to learn or practice R
https://support.posit.co/hc/en-us/articles/200552336-Getting-Help-with-R
R for Data Science Book
Book (2nd edition) by Hadley Wickham (a very active R developer), Mine Çetinkaya-Rundel and Garrett Grolemund. The book makes heavy use of the tidyverse, which is a collection of R packages designed for data science. All packages share an underlying design philosophy, grammar, and data structures. ggplot2 is part of the tidyverse packages.
ggplot2 tutorial
https://ggplot2.tidyverse.org/
R-charts
A site that has been created to be a reference for learning how to create charts in R as well as a place to look for inspiration. Code examples to create plots with base R, ggplot2. Color charts with R color name vs HEX equivalent.
R Markdown
A useful resource is RStudio’s R Markdown tutorial.
For tweaking your reports, such as chosing different output formats, or hiding or showing the code within the report, we recommend that you consult the R markdown documentation provided in this Definite guide eBook.
Cheatsheets
Several cheatsheets available for different packages, eg R Markdown, ggplot2, RStudio,…