inla.barrier.pcmatern {INLA} | R Documentation |
Functions for defining Barrier models as an inla rgeneric
model
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)
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 |
prior.sigma |
2 parameters |
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 |
This model is described in the ArXiv preprint arXiv:1608.03787. For examples, see https://haakonbakkagit.github.io/btopic128.html
inla.barrier.pcmatern
This function creates the model component used in inla(...)
inla.barrier.polygon
This function constructs SpatialPolygons for the different subdomains (areas)
inla.barrier.q
: This function computes a specific precision matrix
inla.barrier.fem
This function computes the Finite Element
matrices that are needed to compute the precision matrix Q later
inla.barrier.pcmatern
gives the (rgeneric) model object
for fitting the model in INLA
inla.barrier.polygon
gives the polygon
around the barrier (mainly for plotting)
inla.barrier.q
is an
internal method producing the Q matrix from a result of inla.barrier.fem,
inla.barrier.fem
is an internal method producing the Finite Element
matrices.
Haakon Bakka bakka@r-inla.org
inla.spde2.pcmatern