Convenience function that takes a forward range X and a forward range Y,
* creates an array of PowMap structs for integer powers 0 through N,
* and calls linearRegress.
*
* Returns: A PolyFitRes containing the array of PowMap structs created and
* a RegressRes. The PolyFitRes is alias this'd to the RegressRes.
Convenience function that takes a forward range X and a forward range Y, * creates an array of PowMap structs for integer powers 0 through N, * and calls linearRegress. * * Returns: A PolyFitRes containing the array of PowMap structs created and * a RegressRes. The PolyFitRes is alias this'd to the RegressRes.