inla.mesh.fem {INLA}R Documentation

Finite element matrices

Description

[Deprecated] Use fmesher::fm_fem() instead.

Constructs finite element matrices for inla.mesh() and inla.mesh.1d() objects.

Usage

inla.mesh.fem(mesh, order = 2)

Arguments

mesh

An inla.mesh() or inla.mesh.1d() object.

order

The model order.

Value

A list of sparse matrices based on basis functions psi_i:

c0

⁠c0[i,j] = < psi_i, 1 >⁠

c1

⁠c1[i,j] = < psi_i, psi_j >⁠

g1

⁠g1[i,j] = < grad psi_i, grad psi_j >⁠

g2

g2 = g1 * c0^-1 * g1

gk

gk = g1 * (c0^-1 * g1)^(k-1), up to and including k=order

Author(s)

Finn Lindgren finn.lindgren@gmail.com

See Also

inla.mesh.1d.fem()

[Package INLA version 25.06.13 Index]