[SciPy-User] A bug in SLSQP?

[Yuxiang Wang]

Dear all,

Oops - sorry. Please disregard my previous email. Even though it
complains (the warning), it still filled the xl and xu with the right
values.

Sorry again for the spamming.

Shawn

On Tue, May 5, 2015 at 1:41 PM, Yuxiang Wang <yw5aj at virginia.edu> wrote:
> Dear all,
>
> In using scipy.optimize.minimize, I encountered a bug when using bounds.
>
> My bounds is set as: bounds = ((0, None), (0, None), (0, 1), (0, None))
>
> Then, it will say invalid value encountered in greater bnderr =
> where(bnds[:, 0] > bnds[:, 1])[0]
>
> I looked into slsqp.py, and in line 330, it checks: if bounds is None
> or len(bounds) == 0: ...
>
> Obviously, bounds is not None, so it did not replace 1e12 or -1e12
> into the bnds.
>
>
> Could anyone please help? Thanks!
>
> My scipy version: 0.15.1; numpy version: 1.9.2. I am using Windows 64
> bit, Python 3.4.
>
> Shawn
>
> --
> Yuxiang "Shawn" Wang
> Gerling Research Lab
> University of Virginia
> yw5aj at virginia.edu
> +1 (434) 284-0836
> https://sites.google.com/a/virginia.edu/yw5aj/



-- 
Yuxiang "Shawn" Wang
Gerling Research Lab
University of Virginia
yw5aj at virginia.edu
+1 (434) 284-0836
https://sites.google.com/a/virginia.edu/yw5aj/