jacw: Knot Jacobian of B-spline with weights

In bspline: B-Spline Interpolation and Regression

Knot Jacobian of B-spline with weights

Description

Knot Jacobian of B-spline with weights

Usage

jacw(jac, qws)

Arguments

jac	Numeric array, such as returned by bsc(..., cjac=TRUE)
qws	Numeric matrix, each column is a set of weights forming a B-spline. If qws is a vector, it is coerced to 1-column matrix.

Value

Numeric array of size nx x ncol(qw) x nk, where nx=dim(jac)[1] and nk is the number of knots dim(jac)[3]+n+1 (n being polynomial order).

bspline documentation built on April 4, 2025, 4:54 a.m.