Update Spline Basis Functions — update • splines2

Update the knot placement, polynomial degree, and any other options available when constructing the given spline object.

Usage

# S3 method for BSpline
update(object, ...)

# S3 method for MSpline
update(object, ...)

# S3 method for ISpline
update(object, ...)

# S3 method for CSpline
update(object, ...)

# S3 method for BernsteinPoly
update(object, ...)

# S3 method for NaturalSpline
update(object, ...)

# S3 method for NaturalSplineK
update(object, ...)

Arguments

object: Spline objects produced by the splines2 package.
...: Other arguments passed to the corresponing constructor function.

Value

An updated object of the same class as the input object with the specified updates.

Examples

library(splines2)

x <- seq.int(0, 1, 0.01)
knots <- c(0.3, 0.5, 0.6)

## quadratic B-splines
bsMat2 <- bSpline(x, knots = knots, degree = 2, intercept = TRUE)

## cubic B-splines
bsMat3 <- update(bsMat2, degree = 3)