Hi,
I am learning R. I am using nlme function to my dataset. I am getting error
"Coefficient matrix not invertible". I don't know how to fix this problem.
> bcows1.nlme<-nlme(Temp~model(newTime, beta, delta, kappa), data=
bcows.group,
+ fixed=beta+delta+kappa~1,
+ random=beta+delta+kappa~1,
+ start=list(fixed=c(coef(bcows.nls)[1], coef(bcows.nls)[2],
coef(bcows.nls)[3])))
> bcows2.nlme<-update(bcows1.nlme, correlation=corARMA(p=2))
Error in "coef<-.corARMA"(`*tmp*`, value = c(210.907034244201,
197.591708911204 :
Coefficient matrix not invertible
>
Please anyone could tell me how to fix this problem.
Thanks
[[alternative HTML version deleted]]
______________________________________________
R-help@stat.math.ethz.ch 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.
