buildH: Spatial dependence matrix of the factor loadings

View source: R/buildH.R

buildHR Documentation

Spatial dependence matrix of the factor loadings

Description

It computes the spatial covariance and precision matrix of the neighboring subregions using Intrinsice Autoregressive Conditional (ICAR) process.

Usage

buildH(areapoly, permutation = NA)

Arguments

areapoly

The polygon of the areas. We can obtain this through readOGR function from sp matrix.

permutation

Permutation order of the subregions

Details

The off-digonal values are -1 when two subregions are neighbors. Otherwise, we assign 0. The diagonal values are the sum of the values of its own row.

Value

A list of two matrices: Precision matrix H and the covariance matrix obtained through Moore-Penrose inverse of H.


DIFM documentation built on May 29, 2024, 3:37 a.m.