orthogonalsplinebasis: expand.knots – R documentation

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expand.knots

Expands knots for appropriate number of knots in bsplines

Description

This function is for conveinience of specifying knots for B-splines. Since the user usually only want to specify the interval that they are interested in the end knots are usually duplicated. This function interprets the first and last knots as the end points and duplicates them.

Usage

expand.knots(interior, order = 4)

Arguments

`interior`	The knots including all interior and endpoitn knots
`order`	the order of the splines that the knots are to be used with. Defaults to 4, being cubic splines

Value

A vector of knots with the order specified as an attribute

Author(s)

Andrew Redd

Examples

(knots<-expand.knots(1:10))
plot(OBasis(knots))

orthogonalsplinebasis

Orthogonal B-Spline Basis Functions

v0.1.6

GPL (>= 2)

Authors

Andrew Redd

Initial release

2015-03-30