finesse.utilities.polyfit.polyfit2d_index¶
- finesse.utilities.polyfit.polyfit2d_index(kx, a, b)[source]¶
 Returns index of polynomial from the result of
polyfit2d()for \(x^{a} y^{b}\).- Parameters
 - kxint
 X polynomial order computed
- a, bint
 x and y polynomial order