New answers tagged r
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Question regarding coefficents regarding linear modeling in R
thus my new formula is just XZ + YZ ?
No, the * operator in R expands into all lower-order terms.
terms(~(X * Z) + (Y * Z))
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Does anyone know if I have written this mixed model correctly in lme4?
Perhaps this is what the authors intended:
lmer(Index ~ Genotype + (1 + Genotype | Location) + (1 | Rep:Location))
That is, a "random slope" for Genotype by location.
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