[AstroPy] Q re. function minimization

Neil Crighton neilcrighton at gmail.com
Tue May 31 10:31:10 EDT 2011

I've used pyminuit: http://code.google.com/p/pyminuit/

Occasionally it's a bit flaky, but it mostly seems to work well and
the documentation is very good.


On 31 May 2011 16:26, Ian Crossfield <ianc at ucla.edu> wrote:
> What functions or wrappers do people use for minimizing a function in
> multidimensional parameter space?  I have some experience with the
> scipy.optimize subfunctions but I've never been entirely happy with
> them; there also appear to be options in sage and a Python MPFIT.  What
> I'd like is a method that lets one minimize a function but also allows
> things like passed keyword arguments (unsupported in scipy.optimize) and
> above all a way to minimize while holding specified parameters fixed --
> so that one can minimize over all parameters, and then repeat with some
> parameters held constant without having to write an entirely new
> function for each peculiar set of parameters.
> Is anything that offers these features this out there?  How do people
> deal with this?
> Thanks,
> --
> Ian Crossfield
> UCLA Astronomy
> KH 3-145J
> http://www.astro.ucla.edu/~ianc/
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