[SciPy-user] fmincon equivalent in scipy.

Nils Wagner nwagner@iam.uni-stuttgart...
Mon Dec 22 07:42:19 CST 2008


On Mon, 22 Dec 2008 15:00:28 +0300
  "Husain, Kamran B" <kamran.husain@aramco.com> wrote:
> Does Scipy have an equivalent function to matlab's 
>fmincon function?
> 
> I have some constraints in the form of Aeq and Beq, 
>along with a function f(x) to minimize on boundaries 
>[(xlower,ylower), .. ]
> The idea is to redo the work done in matlab as a python 
>executable.
> 
> I have tried fmin_cobyla, which soon became unmanageable 
>as the size of X grew and it found a minimum other that 
>found by matlab.
> Then I tried fmin_l_bfgs_b, which although it gave 
>closer results to matlab, did not give acceptable results 
>either.
> 
> Could someone please tell me if there is a better way to 
>do this in Scipy?
> 
> Kamran
> 
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Have you tried openopt ?

Nils


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