https://www.programmingr.com/
R Programming Language | ProgrammingR
ProgrammingR is your one-stop source for learning the R programming language, finding R jobs, hiring R programmers or R consultants, and getting R related help.
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https://data2knowledge.atlassian.net/wiki/spaces/DSDEV/pages/715685895/What+is+R+programming+language
What is R programming language? - DataSHIELD - Confluence
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https://r-charts.com/
R CHARTS | A collection of charts and graphs made with the R programming language
Over 1400 graphs with reproducible code divided in 8 big categories and over 50 chart types, in addition of tools to choose and create colors and color palettes
r charts