Update Spline Basis Functions

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

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

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

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

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

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

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

# S3 method for class '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)