On Tue, Jun 4, 2013 at 9:01 AM, Callie Baird <calliebaird@gmail.com> wrote:

> I am trying to fit multilevel models, allowing negative variance estimates.
>  Is there a way to allow negative variance estimates as in nobound in SAS?
>

No, and I, for one, am not likely to add it.  See

install.packages("fortunes")
library(fortunes)
fortune("impossibility")

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