search for: dmnhb

Displaying 1 result from an estimated 1 matches for "dmnhb".

Did you mean: mnhb
2000 Sep 26
2
bounds violations, infinite loops in optim/L-BFGS-B (PR#671)
I'm having some trouble with optim(method="L-BFGS-B"), and I'm not sure I have the ability to track down and fix what seem to be bugs within optim(). I'm bootstrapping an original data set and fitting a model to each bootstrapped data set. For some bootstrapped samples, optim() sets negative parameter values (despite the fact that I have explicitly set non-zero lower