[R] 2^2 factorial design question

Edna Bell edna.bell01 at gmail.com
Fri Nov 7 01:53:56 CET 2008

Dear R Gurus:

How do you put together a 2^2 (or even 2^k) factorial problem, please?

Since you have 2 levels for A and B, do you put in "A+" and "A-" as
factors, please?

Edna Bell

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