splines (version 3.4.0)

predict.bs: Evaluate a Spline Basis

Description

Evaluate a predefined spline basis at given values.

Usage

# S3 method for bs
predict(object, newx, …)

# S3 method for ns predict(object, newx, …)

Arguments

object
the result of a call to bs or ns having attributes describing knots, degree, etc.
newx
the x values at which evaluations are required.
Optional additional arguments. At present no additional arguments are used.

Value

An object just like object, except evaluated at the new values of x. These are methods for the generic function predict for objects inheriting from classes "bs" or "ns". See predict for the general behavior of this function.

See Also

bs, ns, poly.

Examples

require(stats)
basis <- ns(women$height, df = 5)
newX <- seq(58, 72, length.out = 51)
# evaluate the basis at the new data
predict(basis, newX)