categoricals.c: Effects coding.
authorJohn Darrington <john@darrington.wattle.id.au>
Fri, 25 Nov 2011 09:01:42 +0000 (10:01 +0100)
committerJohn Darrington <john@darrington.wattle.id.au>
Fri, 25 Nov 2011 18:25:24 +0000 (19:25 +0100)
Implemented Effects (also called Contrast) coding instead of Dummy Coding
and corrected logic error.


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