Greetings, I am using the nlm function in a minimization exercise but have consistently received the code: "last global step failed to locate a point lower than 'estimate'...." So it seems that this function is only finding a local minimum, not necessarily a global minimum. Does anyone have a suggestion or recommendation for an alternative package or function within R that will perform this minimization task more globally? Thank you, Marion Wittmann [[alternative HTML version deleted]]
Marion Wittmann <mwittmann <at> bren.ucsb.edu> writes:> > I am using the nlm function in a minimization exercise but have > consistently received the code: "last global step failed to locate a point > lower than 'estimate'...."..> So it seems that this function is only finding a local minimum, not > necessarily a global minimum. >... Try ?optim which has a few methods with a somewhat broader scope. Dieter