A short list of online resources for self directed learning of the R Language and Environment for Statistical Computing and Graphics

leaRn.md

Online Courses

• Coursera (free option available)
• Lynda (subscription required)
• Further courses indexed on the RStudio Site

Books:

• R for Data Science by Hadley Wickham & Garrett Grolemund (an actual book that you can also read for free online)

Reference Cards/Cheat Sheets

• From RStudio
• Contributed documents on the CRAN site (scroll down to 'Short Documents and Reference Cards' section)
• An 8 page introduction to R and two very useful packages targeted at complete beginners here

R User Groups/Meetups

• Free and friendly meetings organised around the world to foster R skills exchange and community building. If a Meetup has R Consortium sponsorship they have agreed to be open, considerate and respectful.

Documentation on the Comprehensive R Archive Network (CRAN) Website

• Official documentation
• Contributed documentation
• Packages may include a vignette (which presents an example analyses using the package) on the CRAN page for that package e.g. for the package gstat

Where to get help:

• Try searching for your question on Stackoverflow
• Literally copy your error message from R and use it as a Google search query

Other:

There are lots of R courses and books you can pay for however I strongly encourage you to try the free options first.