[R] Problem specifying "function" for "mle" operation

[Peter Dalgaard]

"Narcyz Ghinea" <Narcyz.Ghinea at swsahs.nsw.gov.au> writes:

> MY THEORY:
> 
> I think it has something to do with the fact that the function
> argument is a vector in CASE 2. Hope this doesn't mean I have to
> re-write the function in a way that it doesn't require vector
> inputs.....

You do. The innards of mle has

    f <- function(p) {
        l <- as.list(p)
        names(l) <- nm
        l[n] <- fixed
        do.call("minuslogl", l)
    }

which converts the parameters to a list before calling the likelihood.
 
> Any suggestions on how to make CASE 2 work would be appreciated.

Well, either you conform or you patch mle to handle functions with
vector parameters....

-- 
   O__  ---- Peter Dalgaard             Øster Farimagsgade 5, Entr.B
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