[R] Fitting a linear model with lmer in the lme4 package

[syrvn]

Hello,


I need to fit a "Nested Random Effects ANOVA model" with the lmer function
in the lme4 package.

I read through the documentation 

http://lme4.r-forge.r-project.org/book/Ch2.pdf

and the data structure of the "Pastes" data set looks almost

exactly like mine. The only difference is that I have another factor which
distinguishes controls

from diseased patients.

For the "Pastes" data set they fittet their "Nested Random Effects model" as
follows:
		
lmer(strength ~ 1 + (1|sample) + (1|batch), Pastes, REML=FALSE)

My data strucute looks like as follows:
		
http://www.pic-upload.de/view-12130948/data.png.html

I am not sure of how to fit my model now. Would it be as simple as only
adding the third factor?
		
lmer(Protein_1 ~ 1 + (1|Group) + (1|Sub_Disease) + (1|Disease)) ?
		
		
Cheers,

Syrvn

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