[SciPy-User] fmin_slsqp exit mode 8

[Gilles Rochefort]

Could you provide an example that produce such a mode ?

Regards,
Gilles.

> in statsmodels we  have a case where fmin_slsqp ends with mode=8
> "POSITIVE DIRECTIONAL DERIVATIVE FOR LINESEARCH"
>
> Does anyone know what it means and whether it's possible to get around it?
>
> the fortran source file doesn't have an explanation.
>
> Thanks,
>
> Josef
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