I have written a great many pages on particular aspects of statistical methods. Some of these, but not all, are given on the left side of this page.
A large number of these pages contains code written in R. It is sometimes difficult to know where to file them in this list. Some are very specific to R and some are more general and just show the code to produce the examples that I am writing about.
R is a programming or coding language that has become very popular in statistical analysis. Its use goes way beyond standard statistical procedures, but it will do just about anything that you wish done. I give references to good sources, and more are being produced all the time. I have found that if I have a problem with R I am almost better off asking Google than I am using the help files unless my question is very specific, and even there, Google often wins.
If there is a topic you would like some help on, let me know. I don't promise that I can answer every question, or produce a page for every example, but you can ask and I'll see what I can do.