How select best combination parameter?
Please more explaine.

That is a very unspecific question.
Give more details, code, strategy desfription, which kind of parameters are we talking about?

In the help file:
"Evaluates all parameter combinations and selects the most profitable combination that is not a single peak"

What is its formula and mathematical method?

You can’t do « Brute-Force » strategy research with Zorro Trader. Or at least not without a lot of coding.

Trying to brute-force financial markets without their understanding, I’m pretty sure you won’t go very far. Such a software exists, but I’m not sure it’s helping to give you his name. You first need to understand markets.

Not true. Zorro directly supports Brute Force out of the box.
https://zorro-project.com/manual/en/training.htm
https://zorro-project.com/manual/en/opt.htm
https://zorro-project.com/manual/en/objective.htm

That’s not what I would call « Brute Force » (trying to find a strategy from nothing just by letting the computer create a strategy), but parameter optimisation.

But yes, you can try to find the very best parameters for a strategy. Sooner or later, you’ll also discover what overfitting means if you’re doing this a bit too religiously....

??????

Probably referring to this trash software ... https://strategyquant.com/