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370485
2012 Jul 04
2
About nlminb function
Hello
I want to use the nlminb function but I have the objective function like
characters. I can summarize the problem using the first example in the
nlminb documentation.
x <- rnbinom(100, mu = 10, size = 10)
hdev <- function(par) -sum(dnbinom(x, mu = par[1], size = par[2], log =
TRUE))
nlminb(c(9, 12), objective=hdev)
With the last instructions we obtain appropriate results. If I have