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density
2003 Oct 15
2
Example of cell means model
...l with crossed terms
> deviance(fm1)
[1] 38.04
> deviance(fm2 <- lm(Yield ~ Variety * Density, xmp11.07))
[1] 38.04
but the coefficients are quite different because they represent a
different parameterization.
> coef(fm2)
(Intercept) Variety2 Variety3 Density2
9.20000000 -0.26666667 7.10000000 3.23333333
Density3 Density4 Variety2:Density2 Variety3:Density2
3.70000000 1.60000000 0.46666667 -1.43333333
Variety2:Density3 Variety3:Density3 Variety2:Density4 Variety3:Density4...