Re: [Rd] Suggestion: Add box constraints to optim() default Nelder-Mead

2025-09-22 Thread Martin Maechler
> Ben Bolker on Wed, 17 Sep 2025 19:00:00 -0400 writes: > For what it's worth: > John Nash (original author of the Pascal implementations of (most of) > the available algorithms in optim() (including the Nelder-Mead)) has > long maintained that these implementations could b

Re: [Rd] Suggestion: Add box constraints to optim() default Nelder-Mead

2025-09-17 Thread Ben Bolker
For what it's worth: John Nash (original author of the Pascal implementations of (most of) the available algorithms in optim() (including the Nelder-Mead)) has long maintained that these implementations could be updated. (Any update that changed solutions, rather than adding new functionalit

[Rd] Suggestion: Add box constraints to optim() default Nelder-Mead

2025-09-17 Thread ivo welch
Title says it all. I know this can be done by transformations by the user, but given that interval is so prominent in the ?doc and given that Nelder-Mead is the default method for optim(), it would be nice if the default method would honor this one, too. [could be done (even by me) within the R c