how to estimate a nonparametric curve what nonparametric curve estimation approach has the advantage of kernel and orthogonal basis? why are orthogonal base and kernel used in estimation what is the difference between a kernel and orthogonal what is a kernel in nonparametric curve estimator different nonparametric curve methods what is nonparametric curve estimation what is orthogonal basis and kernel nonparametric curve estimation method why is orthogonal base used for nonparametric curve estimation nonparametric curve estimation what is the difference between kernel and orthogonal approach how is a nonparametric curve calculated what is the advantage of orthogonal basis which nonparametric curve is the best what is the difference between kernel and orthogonal basis how to calculate nonparametric curve estimation what is the difference between a kernel and an orthogonal why kernel approach of nonparametric curve why is kernel used for nonparametric curves