Hi,

My name is Orna Intrator and I am an applied health services researcher at
Brown University.

I am trying to run lmer on a 2-level model with fixed effects at the first
level with a large number of factor levels-- to be treated as fixed (not
random) effects. I am running into trouble with R telling me that it cannot
allocate a vector of size 2.2MB. How can I find out the maximum number
of factor levels (fixed effects) that I can include? I don't want to have
them as random effects because of endogeneity.

Thank you.

Orna.

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