Multivariate interpolation

Dear all,

I need to perform a numerical integration (2-Dim) over the interpolated function of four (4!) variables.

(\int dx dy Interpolation{F(x,y,z,w)})

The similar procedure exists in ROOT: by using ROOT::Math::Interpolator with “Integ” option. But it is done only for 1-Dim function (a function of only one variable).

My question: Is there in ROOT a multivariate interpolation (over the 4 Dim ) with the “Integ” option (2Dim integration)?

Thank you!



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