Standard and Non-Standard Evaluation in R

John Mount explains Standard Evaluation versus Non-Standard Evaluation in R:

In standard (or value oriented evaluation) code you type in is taken to be variable names, functions, names, operators, and even numeric literal values. String values or literals need extra marks, such as quotes.

John walks us through several examples along the way. At the end, John is a major proponent of Standard Evaluation over Non-Standard Evaluation.

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