@sid100158 wrote:
I am currently studying the methods which are used to fit nonlinear models while studying them I found one great method is splined . I found two types of splines one is cubic splines and is natural cubic splines .
cubic splines- A cubic spline is a spline constructed of piecewise third-order polynomials which pass through a set of control points. The second derivative of each polynomial is commonly set to zero at the endpoints since this provides a boundary condition that completes the system of equations.
natural cubic splines - A natural cubic spline extrapolates linearly beyond the boundary knots.
I want to know which one of them is the better one and why
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