Check for consistent use of the word "code"

[zkamvar]

I've noticed that we have a couple of different ways to refer to R code (code, coding, codes) and I want to make sure we have consistent usage when we talk about these things. My interpretation is:

• code refers to any sort of programming script: "The R code for calculating the mean of x without missing data is mean(x, na.rm = TRUE). This is a mass noun and should never be plural.
• coding/codes refers to how variables are represented: "It's common to have simplified coding to represent common variables such as 1 for Male and 2 for Female"