expand.knots {orthogonalsplinebasis} | R Documentation |
Expands knots for appropriate number of knots in B-splines
Description
This function is for convenience 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 endpoint 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
See Also
SplineBasis
, ~~~
Examples
(knots<-expand.knots(1:10))
plot(OBasis(knots))
[Package orthogonalsplinebasis version 0.1.7 Index]