spatsurv (version 0.9-11)

getgrd: getgrd function

Description

A function to create a regular grid over an observation window in order to model the spatial randome effects as a Gaussian Markov random field.

Usage

getgrd(shape, cellwidth)

Arguments

shape

an object of class SpatialPolygons or SpatialPolygonsDataFrame

cellwidth

a scalar, the width of the grid cells

Value

• a SpatialPolygons object: the grid on which prediction of the spatial effects will occur

References

1. Benjamin M. Taylor. Auxiliary Variable Markov Chain Monte Carlo for Spatial Survival and Geostatistical Models. Benjamin M. Taylor. Submitted.http://arxiv.org/abs/1501.01665
2. Finn Lindgren, Havard Rue, Johan Lindstrom. An explicit link between Gaussian fields and Gaussian Markov random fields: the stochastic partial differential equation approach. Journal of the Royal Statistical Society: Series B 73(4)