What is R?
“R is a language and environment for statistical computing and graphics. R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, …) and graphical techniques, and is highly extensible. The S language is often the vehicle of choice for research in statistical methodology, and R provides an Open Source route to participation in that activity.”
More about R: introduction, software downloads and help guides.
If you are aware of other software, such as JASP please add the details in the comments section and we can build this page with more resources. Note: No disclaimer or conflict of interest for this product, its not an advertisement, just a potentially exciting and helpful software program.