Create SPDE Matern Components — create_spde_matern • synthos

Constructs the SPDE Matern model components (spde object, precision matrix, and projection matrix) for a given spatial grid and INLA mesh.

Usage

create_spde_matern(spatial_grid, mesh, config)

Arguments

spatial_grid: An sf object containing the spatial grid.
mesh: An INLA mesh object.
config: A list with SPDE parameters, including alpha, variance, and kappa.

Value

A list containing:

spde: The INLA SPDE Matern model.
Q: The precision matrix derived from SPDE parameters.
A: The projection matrix mapping mesh nodes to grid points.

Author

Murray