Calculate a lattice projection to/from an inla.mesh for rSPDE objects

Calculate a lattice projection to/from an inla.mesh for rSPDE objects

Usage

rspde.mesh.project(...)

rspde.mesh.projector(
  mesh,
  nu = NULL,
  rspde.order = 2,
  loc = NULL,
  lattice = NULL,
  xlim = NULL,
  ylim = NULL,
  dims = c(100, 100),
  projection = NULL,
  ...
)

# S3 method for inla.mesh
rspde.mesh.project(
  mesh,
  loc = NULL,
  field = NULL,
  rspde.order = 2,
  nu = NULL,
  ...
)

# S3 method for rspde.mesh.projector
rspde.mesh.project(projector, field, ...)

# S3 method for inla.mesh.1d
rspde.mesh.project(mesh, loc, field = NULL, rspde.order = 2, nu = NULL, ...)

Arguments

...

Additional parameters.

mesh

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

nu

The smoothness parameter. If NULL, it will be assumed that nu was estimated.

rspde.order

The order of the rational approximation.

loc

Projection locations. Can be a matrix or a SpatialPoints or a SpatialPointsDataFrame object.

lattice

An inla.mesh.lattice object.

xlim

X-axis limits for a lattice. For R2 meshes, defaults to covering the domain.

ylim

Y-axis limits for a lattice. For R2 meshes, defaults to covering the domain.

dims

Lattice dimensions.

projection

One of c("default", "longlat", "longsinlat", "mollweide").

field

Basis function weights, one per mesh basis function, describing the function to be evaluated at the projection locations.

projector

A rspde.mesh.projector object.

Value

A list with projection information for rspde.mesh.project. For rspde.mesh.projector(mesh, ...), a rspde.mesh.projector object. For rspde.mesh.project(projector, field, ...), a field projected from the mesh onto the locations given by the projector object.

Details

This function is built upon the inla.mesh.project and inla.mesh.projector functions from INLA.