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indica
2006 Sep 01
0
defining error structure in bivariate mixed models
Hi,
Using indicator variables I have been able to fit and run the code for
fitting a bivariate mixed model using unstructured covariance matrix
The code is
lme.fit1<- lme(one.var~-1+indic1+indic2+I(indic1*d.time)+I(indic2*d.time),
random =~ -1+indic1+indic2|m.unit, weights = varIdent(~1|indic1)
,data = new.data)
My variables are
one.var :- the two response variables stacked one after another
indic1 :- Indicator for variable one
indic2 :- indicator for variable two
d.time :- A covariate
m...