stModel.matrices {INLAspacetime}

Define the spacetime model matrices.

Description

This function computes all the matrices needed to build the precision matrix for spatio-temporal model, as in Lindgren et. al. (2023)

Usage

stModel.matrices(smesh, tmesh, model, constr = FALSE)

Arguments

smesh

a mesh object over the spatial domain.

tmesh

a mesh object over the time domain.

model

a string identifying the model. So far we have the following models: '102', '121', '202' and '220' models.

constr

logical to indicate if the integral of the field over the domain is to be constrained to zero. Default value is FALSE.

Details

See the paper for details.

Value

a list containing needed objects for model definition.

1. 'manifold' to spedify the a string with the model identification

2. a length three vector with the constants c1, c2 and c3

3. the vector d

4. the matrix T

5. the model matrices M_1, ..., M_m