[R] Creating new columns inside a loop

From: David L. Van Brunt, Ph.D. <dlvanbrunt_at_gmail.com>
Date: Thu 11 Aug 2005 - 05:50:08 EST

Ok, I know R isn't an optimal environment for looping (or so I've heard) but I have a need to loop through columns of data and create new columns of data based on calculations within rows...

I'm sure there's a help file, but I'm not sure what search terms to use to find it! The problem is that these new columns need to have names that I can later access... Like NewVar1, NewVar2, etc....

In php I'd call this "indirection" but I'm not sure what to call it in R so that I can find instructions on how to create, name, and address the values stored this way...

any gentle nudges in the right direction would be greatly appreciated!

David L. Van Brunt, Ph.D.

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Received on Thu Aug 11 05:54:16 2005

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