Hi Thomas,

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Best regards,
John


--- In anyscript@yahoogroups.com, "knox40" <knox40@...> wrote:
>
> Hi,
>
> AnyBody uses three different muscle models:
>
> AnyMuscleModel
> AnyMuscleModel3ELin
> AnyMuscleModel3E
>
> I think i have understood the difference between these three models and I'm
using mainly the AnyMuscleModel and the AnyMuscleModel3E, as the results are
mainly in a good range.
>
> But I have a question regarding the optimization algorithm. Am I right with
the assumption that I can choose for each of theses models one of the following
algortihm in AnyBody?
>
> - Polynomial criteria
> - Soft saturation criteria
> - The min/max criterion
>
> As I know from the work of Forster, 2003, the results can be quite different
between linear or a quadratic solver solution.
>
> Is my assumption right, that the min/max criterion is the simplex solver? If
then, what is the addition for example MinMaxNRsimplex for?
>
> If I want to apply a quadratic algorithm I have to change the Penalty form LP
to QP, but what influence has then the simplex solver?
>
> As I see mainly the MinMaxNRSimplex solver in the models of the repository, it
is advisable to use a quadratic solver? Is it beacuse the simplex solver is more
efficient and robust?
>
> I hope you can make this more clear to me.
>
> Best regards,
>
> THomas
>