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0hn0
2011 Oct 17
0
Analyze each factor separtely
...ying to apply a model to each level of a factor
For example, i have three levels of a variable I call 'Code'...I want to
model the data under each level of code differently...I've attached a sample
data set... http://r.789695.n4.nabble.com/file/n3913431/data.txt data.txt
I.E for code 0HY0 I want to model y~ 1|strain + 1|code *both code and
strain are random effects...
for code 0HY1 run a separate model with different y's.... y~ 1|strain +
1|code
tapply does not work (or rather i cannot get it to work)
In SAS i would simply use
PROC MIXED data=data;
by code;
model y=;
random...