R - Spline

Card Puncher Data Processing


Fitting splines in R is easy: bs(x, …) for any degree splines (one: linear spline, three: cubic spline and ns(x, …) for natural cubic splines, in package package=splines.

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Natural Cubic Spline
Statistics - Natural (Cubic) Spline

A natural cubic spline is a cubic spline where two extra constraints have been added at the boundaries (on each end). The goal of this constraints is to avoid as for global cubic polynomial that the tail...

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