Hey all,
In my research I need to adjust a gamma mixed regression model. I'm
using Zelig package.
z<-zelig(y~a+d1+d2+d3+tag(1|CODE), data=los0, model="gamma.mixed")
But I'm having the following problem:
In mer_finalize(ans) : singular convergence (7)
Can anyone explain me what's happening? What can I do, to do not have
this error?
Thank you very much.
Sara Dias
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