There are absolutely loads of resources out there to get started on R programming, here is a short list of items I hope to use and contribute to in the near future.

The CAMIS project is a collaboration between Pharmaceutical companies and professional bodies comparing analysis methods using different software, primarily SAS and R. The group have also created a White Paper with guidance on the use of R.

GitHub is a tool I am familarizing myself with and this is a great relevant example of GitHub linked to the project above. CAMIS GitHub

Pharmaverse looking at the risk involved when using opensource code and guidence for development of open source code.