Hi everyone! I have a quick question. I'm using this code to check for if there is a correlation between edad*musc, edad*sexo, musc*sexo and edad*musc*sexo. My question is, in the random statement, is it correct to write toro(edad) like I'm doing? My only random would be toro, which is my independent variable, but edad, as well as musc and sexo are all dependent variables.
proc glimmix data=cruza;
class edad musc sexo toro;
model tern_co = edad | musc| sexo;
random toro(edad);
lsmeans edad | musc | sexo / pdiff lines;
proc glimmix data=cruza;
class edad musc sexo toro;
model Tern_cr = edad | musc| sexo;
random Toro(Edad);
lsmeans edad | musc| sexo / pdiff lines;
run;
Thanks.
One concern is that you may be running low on degrees of freedom for error, and possibly eliminating the three-way interaction might help. Generally, I don't put three-way interactions into a model without having some subject matter reason for thinking it belongs. Other than that, it seems like the right model.
Impossible to answer
We don't know what the variables edad musc sexo and toro represent.
We don't know the design of your study either, which would also inform us about what the proper model and random statements are.
That's a fairly complex model for only 30 observations...
One concern is that you may be running low on degrees of freedom for error, and possibly eliminating the three-way interaction might help. Generally, I don't put three-way interactions into a model without having some subject matter reason for thinking it belongs. Other than that, it seems like the right model.
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