How to get from cubic spline to natural cubic spline?

Asked Jul 16 '22 at 20:54

Active Jul 16 '22 at 21:01

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I am following a video lecture on spline regression where this formula is presented to design a cubic spline regression.

The teacher continues to explain that one would usually prefer the usage of "natural cubic splines" which add constraints that the polynomials are linear in the boundary regions.

My question: How would this formula need to change if I wanted to add these constraints?

edited Jul 16 '22 at 21:01

asked Jul 16 '22 at 20:54

FeeloMeri

Does this answer your question? The definition of natural cubic splines for regression – jbowman Jul 17 '22 at 00:12
I've seen this answer before posting my question, but as I, unfortunately, don't have a math or statistics background I was not able to transfer the answer to my question of how I would need to change the equation such that it accounts for the natural spline constraints. – FeeloMeri Jul 17 '22 at 00:28

How to get from cubic spline to natural cubic spline?

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