importGATweights: Create Population Base for Weighting

In ajstamm/gatpkg: Geographic Aggregation Tool (GAT)

Create Population Base for Weighting

Description

This function reads in the layer to be aggregated (large area) and the file details for the shapefile containing small areas, including the file name, file location, and variable containing population values.

It subsets the small area layer based on boundaries of the large are layer, then calculates the proportion of each small area that falls in each large area based on the area proportion of the small area that falls in each large area. This creates a base layer from which to create population weighted centroids.

Usage

importGATweights(area, filein, pathin, popvar = "Pop_tot")

Arguments

area	The spatial polygons data frame you want to aggregate.
filein	The filename of the population shapefile.
pathin	The path of the population shapefile.
popvar	The population variable to use in the population shapefile.

Examples

if (interactive()) {
pathin <- paste0(find.package("gatpkg"), "/extdata")
mywtshp <- importGATweights(area = hftown, filein = "hfblockgrp",
                            pathin = pathin, popvar = "Pop")
}

ajstamm/gatpkg documentation built on Nov. 23, 2023, 9:44 a.m.