[Scilab-users] question non datafit

[Federico Miyara]

Dear All,

I'm trying to understand the function datafit.

The documentation says:

    datafit is used for fitting data to a model. For a given function
    G(p,z), this function finds the best vector of parameters p for
    approximating G(p,z_i)=0 for a set of measurement vectors z_i.
    Vector p is found by minimizing
    G(p,z_1)'WG(p,z_1)+G(p,z_2)'WG(p,z_2)+...+G(p,z_n)'WG(p,z_n)


I don't quite understand what is G(p,z_1)'WG(p,z_1). Are some product 
signs * missing? Shouldn't it be G(p,z_1)'*W*G(p,z_1)? Are these signs 
implied as in regular algebra notation?

Thanks,

Federioo Miyara

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