fm_row_kron: Row-wise Kronecker products

In fmesher: Triangle Meshes and Related Geometry Tools

Row-wise Kronecker products

Description

Takes two Matrices and computes the row-wise Kronecker product. Optionally applies row-wise weights and/or applies an additional 0/1 row-wise Kronecker matrix product.

Usage

fm_row_kron(M1, M2, repl = NULL, n.repl = NULL, weights = NULL)

Arguments

M1	A matrix that can be transformed into a sparse Matrix.
M2	A matrix that can be transformed into a sparse Matrix.
repl	An optional index vector. For each entry, specifies which replicate the row belongs to, in the sense used in INLA::inla.spde.make.A
n.repl	The maximum replicate index, in the sense used in INLA::inla.spde.make.A().
weights	Optional scaling weights to be applied row-wise to the resulting matrix.

Value

A Matrix::sparseMatrix object.

Author(s)

Finn Lindgren [e-mail]

Examples

fm_row_kron(rbind(c(1, 1, 0), c(0, 1, 1)), rbind(c(1, 2), c(3, 4)))

fmesher documentation built on July 1, 2024, 5:07 p.m.