On Fri, Oct 16, 2009 at 3:56 PM, Michael A. Gilchrist mi...@utk.edu wrote:
Hi Dieter,
Thanks for the reply. I had played with the initial conditions, but
apparently not enough. I finally found some that avoided the singularity
issue. Many thanks.
More generally, I went over the
Michael A. Gilchrist wrote:
-
nlme(Count ~ quad.PBMC.model(aL, aN, T0),
+ data = tissueData,
+ weights = varConstPower(form =~ Count),
+ start = list( fixed = c(rep(1000, 8), -2, -2) ),
+ fixed = list(T0 ~ TypeTissue-1, aL ~ 1, aN ~
Hi Dieter,
Thanks for the reply. I had played with the initial conditions, but
apparently not enough. I finally found some that avoided the singularity
issue. Many thanks.
More generally, I went over the documentation yet again in PB and I still
find it a bit confusing. They talk about
Hello,
Excuse me for posting two questions in one day, but I figured it would be
better to ask my questions in separate emails. I will again give the caveat
that I'm not a statistician by training, but have a fairly decent
understanding of probability and likelihood.
As before, I'm trying
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