Expressions!

October 5, 2009
By

(This article was first published on R Tips's blog, and kindly contributed to R-bloggers)

I never really saw a use for these until I started testing code en mass. I found myself doing lots and lots of copy and paste. I heard it from Steve McConnell in his Code Complete book where he said if you are copying and pasting you are programming it wrong. Well in R, expressions help you avoid copying and pasting code.

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