inla.barrier.pcmatern {INLA}R Documentation

Functions for defining the Barrier models

Description

Functions for defining Barrier models as an inla rgeneric model

Usage

inla.barrier.pcmatern(
  mesh,
  barrier.triangles,
  prior.range,
  prior.sigma,
  range.fraction = 0.2
)

inla.barrier.polygon(mesh, barrier.triangles, Omega = NULL)

inla.barrier.q(fem, ranges, sigma = 1, envir = NULL)

inla.barrier.fem(mesh, barrier.triangles, Omega = NULL)

Arguments

mesh

The mesh to build the model on, from inla.mesh.2d

barrier.triangles

The numerical ids of the triangles that make up the barrier area

prior.range

2 parameters (range0,Prange) for the prior spatial range. If Prange is NA, then range0 is used as a fixed range value (not tested).

prior.sigma

2 parameters (sig0,Psig) for the prior marginal standard deviation sigma. If Psig is NA, then sig0 is used as a fixed sigma value (not tested).

range.fraction

The length of the spatial range inside the barrier area, as a fraction of the range parameter.

Omega

Advanced option for creating a set of permeable barriers (not documented)

fem

represents the Barrier model or the Different Terrains (DT) model, by containing all the needed matrices to solve the SPDE

ranges, sigma

the hyperparameters that determine Q

envir

the environment used for caching (with optimize=TRUE), if any

Details

This model is described in the ArXiv preprint arXiv:1608.03787. For examples, see https://haakonbakkagit.github.io/btopic128.html

Value

Author(s)

Haakon Bakka bakka@r-inla.org

See Also

inla.spde2.pcmatern


[Package INLA version 21.11.22 Index]