search for: cov2class

I have a fairly large model: > length(Y) [1] 3051 > dim(covariates) [1] 3051 211 All of these 211 covariates need to be nested hierarchically within a grouping "class", of which there are 8. I have an accessory vector, " cov2class" that specifies the mapping between covariates and the 8 classes. Now, I understand I can break all this information up into individual vectors (cov1, cov2, ..., cov211, class1, class2, ..., class8), and do something like this: model <- lmer(Y ~ 1 + cov1 + cov2 + ... + cov211 +...