Message-ID: <41ACA2C3.4020907@echip.com>
Date: 2004-11-30T16:41:39Z
From: Bob Wheeler
Subject: 2k-factorial design with 10 parameters
In-Reply-To: <Pine.LNX.4.61.0411301215080.13214@gannet.stats>
> On Tue, 30 Nov 2004, Sven wrote:
>
>> I'd like to apply a 2^k factorial design with k=10 parameters.
>> Obviously this results in a quite long term for the model equation due
>> to the high number of combinations of parameters.
>>
>> How can I specify the equation for the linear model (lm) without
>> writing all combinations explicitly down by hand? Does a R command
>> exist for this problematic?
>
Use expand.formula() in the AlgDesign package.
--
Bob Wheeler --- http://www.bobwheeler.com/
ECHIP, Inc. ---
Randomness comes in bunches.