R: Spline knot points

splinek {asreml}

R Documentation

Spline knot points

Description

Return the spline knot points generated via the spl() model function.

Usage

splinek(x, k = 0, core_version = NULL)

Arguments

x

A numeric vector.

k

The number of equally-spaced knot points for a cubic smoothing spline. If zero or omitted, k is set to asreml.options()$knots, in which case the number of knot points used will be: min(unique(x), asreml.options()$knots) (default = 50).

core_version

The version of the algorithmic core to use, not usually required.

Value

A list including the following components:

knotpoints: The knot points generated by asreml.
zknots: The spline design matrix at the knot points.

[Package asreml version 4.2.0.480 Index]