Outer Product of Second Derivatives of Spline Bases

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Description

Provides the functional outer product of second derivatives of a set of basis functions in a SplineBasis object. It a convenient form for forming a penalty on curve smoothness when fitting a spline curve.

Usage

1

Arguments

basis

A SplineBasis object

Value

A square matrix of order nrow(basis).

Author(s)

Andrew Redd <aredd at stat.tamu.edu>

See Also

SplineBasis,fitLS