Message-ID: <1305123449558-3514828.post@n4.nabble.com>
Date: 2011-05-11T14:17:29Z
From: Rovinpiper
Subject: ANOVA 1 too few degrees of freedom
In-Reply-To: <BANLkTimTeDR2xLSPdhREfLQNBzOF5=jrSQ@mail.gmail.com>
Please read the first two paragraphs of Details from ?formula
Ok, I just did.
So, If I understand this properly, the term Plot*Day would include both the
main effects of a and b and their second order interactions. So it could be
written Plot + Day + Plot:Day.
The term Plot:Day includes only the second order interactions of Plot and
Day.
So would that make this model redundant:
Rs ~ Plot + Day + Plot:Day
Since it includes the main effects of Plot and Day twice?
Thanks.
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