An experienced data analyst will typically have a breadth of knowledge in many different programming languages, but may not be familiar with R. R is a powerful tool for data analysis and can be used for a variety of different tasks.
To learn R, there are a few different approaches that can be taken.
One approach is to find a tutorial or article online and follow along. Another approach is to attend a workshop or class on R.
There are also many resources available for self-study, such as books, online courses, and video tutorials. When choosing which resources to use, it is important to find ones that are written for beginners and that provide enough detail to help you understand the concepts but not so much detail that you get bogged down.