How do I become an expert in R?

To master R programming, you need to master: General R programming concepts Environments and scoping Non-standard evaluation (quote, substitute, eval) Functionals, specifically lapply family of functions Closures and associated use cases Higher order functions like Map and Reduce R's object oriented systems (S3, S4) Processing strings and regex Date and timestamp manipulation Understanding the merits … Continue reading How do I become an expert in R?