R functions are incredibly handy ways to have R carry out repetitive tasks for you without having to copy and paste lines in your code over and over again. Since I don't daily write new R functions, I sometimes forget what the syntax is to create these custom functions. Here's an example function I made to tell if a number is even or odd:
To run a custom R function simply use the function name with all the needed input variable in parenthesis (ex: even_num(413)).
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