-project.org
[mailto:r-sig-ecology-boun...@r-project.org] On Behalf Of Christian Parker
Sent: 20 August 2011 17:44
To: Elizabeth Green
Cc: r-sig-ecology@r-project.org
Subject: Re: [R-sig-eco] random effects in a linear mixed model
Edgar,
Based on the information provided its difficult
agosto, 2011 15:43:14
Asunto: Re: [R-sig-eco] random effects in a linear mixed model
Edgar
I agree with what Chris says
(1 + BOAT | fYEAR) makes no sense
It is probably
(1|BOAT) + (1|fYEAR) that you want
Providing you have enough boats and years to estimate variance components for
these two
Edgar,
Based on the information provided its difficult to thoroughly answer your
question. But I will assume that you have samples within each year, say
weekly or monthly. Based on this I would say that you can treat the years as
a random effect but I dont think that I would do it the way that
On Aug 19, 2011, at 2:00 AM, r-sig-ecology-requ...@r-project.org wrote:
1. Random effects in a linear mix model (Edgar Torres)
Edgar, the random effects represent the variable that has an effect,
but not an effect that is likely to be biologically interesting, in
this case, your
