matmult_U: Left-Multiply a List of Block-Diagonal Matrices by U

In lgspline: Lagrangian Multiplier Smoothing Splines for Smooth Function Estimation

Left-Multiply a List of Block-Diagonal Matrices by U

Description

Useful for computing UG where G is a list of block-diagonal matrices for each partition, and U is a square P by P dense matrix

Usage

matmult_U(U, G, nc, K)

Arguments

U	Matrix of dimension P by P that projects onto the null space of A transpose
G	List of G matrices for each partition
nc	Numeric numeric of basis expansions of predictors per partition
K	Number of blocks

Value

Matrix of UG

lgspline documentation built on Nov. 18, 2025, 9:06 a.m.