Suffix file in R

Question

Is there a file suffix convention in R?

I saw file.r and file.r

Is the suffix preferred when creating the file?

Answer 1

Both Google and Wickhamite styles prefer .R (I agree with them), but there really is no standardized R style guide (i.e. equivalent to Python PEP8). This has led to several features . Generally speaking, I would say to go with .R .

Answer 2

How from the Google R Style Guide :

 File names should end in .R and, of course, be meaningful. GOOD: predict_ad_revenue.R BAD: foo.R 

So .R is preferred.