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List: r-help
Subject: Re: [R] variance estimates in lme biased?
From: "Pascal A. Niklaus" <Pascal.Niklaus () unibas ! ch>
Date: 2003-12-17 10:18:20
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Running lme on your data set results exactly in what you expect - or do
you expect something different?
Pascal
> L1<-factor(F1f)
> L2<-factor(F2f)
> L3<-factor(F3f)
> lme(value ~ 1,random = ~ 1 | L1/L2/L3)
Linear mixed-effects model fit by REML
Data: NULL
Log-restricted-likelihood: 438.9476
Fixed: value ~ 1
(Intercept)
0.2955631
Random effects:
Formula: ~1 | L1
(Intercept)
StdDev: 0.02472988 <== level F1 which is 0
Formula: ~1 | L2 %in% L1
(Intercept)
StdDev: 1.140782 <== level F2 which is 1
Formula: ~1 | L3 %in% L2 %in% L1
(Intercept) Residual
StdDev: 0.0005512791 0.1020479 <== F3 which is 0 , and F4 which is 0.1
Number of Observations: 625
Number of Groups:
L1 L2 %in% L1 L3 %in% L2 %in% L1
5 25 125
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