grdfile: Function creates a grid file to be read by dss.64.c.exe

In maluicr/blockdss: Disease Mapping with Block Direct Sequential Simulation

Function creates a grid file to be read by dss.64.c.exe

Description

Converts grid nodes (spatial grid) into a text file (.out) that is stored in 'input' folder. As input you should provide the spatial grid (SpatialPixelsDataFrame), with id region values at simulation grid nodes, and a list returned by funtion irates().

Usage

grdfile(rateobj, gridimage, NAval = -999)

Arguments

rateobj,	string, name of list, output of function irates()
gridimage,	string, name of block file, a SpatialPixelsDataFrame object
NAval,	numeric, integer with grid value for "No data"

Details

The gridded values should refer to the region id's at simulation locations (nodes). Every regions recorded in disease data file should be assigned to 1 or more grid node.

Value

gridpars	list parameters from block data: number rows and columns, resolution, (x,y), coordinates of the origin, NA value
outgrid	list vector node values, vector id of regions, and number of regions
file	list characters; indicating the day of data collection, filename and root folder where file is stored
ingrid	the SpatialPixelsDataFrame object used

maluicr/blockdss documentation built on Nov. 22, 2023, 11:42 a.m.