I've been tuning up my resume since starting my current job about a year ago, and I have a question: What kinds of words or ranking system do you use to signal your comfort level with different languages or tools used for data analysis?
For example, I feel comfortable working in R for data analysis, and I use it regularly at work. But I have also used C for modeling, and would like to mention that as well even though there's a huge difference between my comfort and familiarity in C vs R. And then there are tools like LaTex that I can use (and have used in the past) but haven't really kept up with.
I'm looking for something like the "survival" -> "native" scale that language speakers can use to signal their speaking or reading skills. What kinds of phrases or scales do you use in the Skills section of your resume? Is something like this even necessary?
Edit: a typo