Janmaat, John wrote:
>
> Hello All,
>
> This is my third time attempting to post this message. I don't see it
> in the archive, so I'm guessing it is not getting through. If I am
> wrong, my apologies.
>
> I am trying to do a GLS regression, (X'V^-1X)^-1X'V^-1y, using the gls()
> function from the nlme package. I have the covariance matrix V. I have
> been searching for a way to specify the correlation structure using V,
> and have had little luck. I have found a few other messages from people
> who have had the same problem. Is there a way to do this? If it
> requires building my own corStruct, where can I look for information to
> do this?
>
> Thanks,
>
> John.
>
> --
>
Don't know if it came through or not before, and not sure of the
answer, but just to give you _an_ answer -- if the answer isn't
in Pinheiro and Bates (2000), then you'll probably have to dig
through the code (which is scary).
Ben Bolker
--
View this message in context:
http://www.nabble.com/GLS-with-nlme-tf4737987.html#a13558299
Sent from the R help mailing list archive at Nabble.com.
______________________________________________
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.
