On Wednesday 20 August 2003 15:44, Shengqiao Li wrote: > Hi, R guys: > > I'm using L-BFGS-B method of optim for minimization problem. My function > called besselI function which need non-negative parameter and the besselI > will overflow if the parameter is too large. So I set the constraint box > which is reasonable for my problem. But the point outside the box was > test, and I got error. My program and the error follows. This program > depends on CircStats package. > > > Anyone has any idea about this? >
No idea... I can only say that a similar behaviour of optim with method="L-BFGS-B" (i.e. evaluation of the function outside the lower/upper limits) has occurred to me too. It is a rare but possible behaviour. Last June, I have sent a full description of the problem to [EMAIL PROTECTED] Regards, Adelchi Azzalini -- Adelchi Azzalini <[EMAIL PROTECTED]> Dipart.Scienze Statistiche, Università di Padova, Italia http://azzalini.stat.unipd.it/ (please, no ms-word/ms-excel/alike attachments) ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
