update.CBrSPDEobj2d: Update parameters of CBrSPDEobj2d objects

In rSPDE: Rational Approximations of Fractional Stochastic Partial Differential Equations

Update parameters of CBrSPDEobj2d objects

Description

Function to change the parameters of a CBrSPDEobj object

Usage

## S3 method for class 'CBrSPDEobj2d'
update(
  object,
  hx = NULL,
  hy = NULL,
  hxy = NULL,
  sigma = NULL,
  nu = NULL,
  m = NULL,
  ...
)

Arguments

object	The covariance-based rational SPDE approximation, computed using matern2d.operators()
hx	If non-null, update the hx parameter.
hy	If non-null, update the hy parameter.
hxy	If non-null, update the hxy parameter.
sigma	If non-null, update the standard deviation of the covariance function.
nu	If non-null, update the shape parameter of the covariance function. Will be used if parameterization is 'matern'.
m	If non-null, update the order of the rational approximation, which needs to be a positive integer.
...	Currently not used.

Value

It returns an object of class "CBrSPDEobj2d.

See Also

simulate.CBrSPDEobj2d(), matern2d.operators()

Examples

library(fmesher)
n_loc <- 2000
loc_2d_mesh <- matrix(runif(n_loc * 2), n_loc, 2)
mesh_2d <- fm_mesh_2d(loc = loc_2d_mesh, cutoff = 0.03, max.edge = c(0.1, 0.5))
op <- matern2d.operators(mesh = mesh_2d)
op <- update(op, nu = 0.5)

rSPDE documentation built on Jan. 26, 2026, 9:06 a.m.