ngme Matern SPDE model specification — matern • ngme2

ngme Matern SPDE model specification

matern(mesh, alpha = 2, kappa = NULL, theta_K = NULL, B_theta_K = NULL, ...)

Arguments

mesh: an fmesher::fm_mesh_2d object, mesh for build the SPDE model
alpha: 2 or 4, SPDE smoothness parameter
kappa: the range parameter, for the stationary model, it is the range parameter
theta_K: kappa = exp(B_theta_K * theta_K), for the non-stationary model, it is the range parameter
B_theta_K: bases for theta_K, ignore if use the stationary model
...: ignore

Value

ngme_operator object