https://cran.r-project.org/doc/manuals/r-release/R-intro.html
An Introduction to R
An Introduction to R
an introduction to r
https://cran.r-project.org/doc/manuals/r-patched/R-intro.html
An Introduction to R
An Introduction to R
an introduction to r
https://intro2r.com/
An Introduction to R
A practical introduction to using R for data analysis
an introduction to r
https://www.r-tutor.com/
An R Introduction to Statistics | R Tutorial
An R introduction to statistics that explains basic R concepts and illustrates with statistics textbook homework exercises.
introduction to statisticstutorial