From djsamperi at gmail.com  Thu Mar 24 16:53:27 2011
From: djsamperi at gmail.com (Dominick Samperi)
Date: Thu, 24 Mar 2011 11:53:27 -0400
Subject: [Rd] Orthogonal polynomial ANOVA or polynomial regression?
Message-ID: <AANLkTik09f7cr7hz+fLTe6BRXOig+kWpFzoM8aXVt0bV@mail.gmail.com>

Hi,

I have not been able to find R tools that permit an orthogonal polynomial
ANOVA analysis: single degree of freedom F-test comparisons including
L, Q, C, etc. terms. Do such tools exist?

I guess you can accomplish something similar by doing straightforward
polynomial regression and removing powers manually, combined with
ANOVA model comparisons.

Thanks,
Dominick



[Rd] Orthogonal polynomial ANOVA or polynomial regression?
Dominick Samperi