Hi, I haven’t tested Powell on these (or have time to now unfortunately), but I did previously add a test bench of optimization problems in https://github.com/scipy/scipy/pull/14579 <https://github.com/scipy/scipy/pull/14579> if it’s useful. Best, Sara
On Mar 6, 2023, at 4:17 AM, Matthew Brett <matthew.brett@lis.ac.uk> wrote:
Hi,
Sorry to keep on at this one, but it is worrying me.
Do we have anyone reading or known to us who can give a fairly definitive answer to:
On Thu, Mar 2, 2023 at 10:01 PM Matthew Brett <matthew.brett@lis.ac.uk> wrote: [snip]
? Is it really true that the modification assists Powell in handling long skinny valleys? If so, does it work less well in other situations? Has anyone compared the algorithms across a good range of problems?
Cheers,
Matthew _______________________________________________ SciPy-Dev mailing list -- scipy-dev@python.org To unsubscribe send an email to scipy-dev-leave@python.org https://mail.python.org/mailman3/lists/scipy-dev.python.org/ Member address: sarafridov@gmail.com