getHaltonFrame: Obtain a Halton Frame over a shapefile.

In spbal: Spatially Balanced Sampling Algorithms

Obtain a Halton Frame over a shapefile.

Description

An internal only function.

Usage

getHaltonFrame(shapefile, J, i, bases, seeds, crs)

Arguments

shapefile	A MULTIPOINT or POINT object that we want to generate a halton frame for.
J	The number of grid cells. A list of 2 values.
i	An integer to add to the J parameter elements to expand the Halton Frame in both directions if the required number of sample points cannot be found in the region of interest in the current Halton frame.
bases	Co-prime base for the Halton Sequence.
seeds	A list of 2 seeds, u1 and u2.
crs	Coordinate reference system for the shapefile.

Details

This function was written by Phil Davies.

Value

A list containing the following variables: hf_, sample, pts.shp, bb.new, seeds

spbal documentation built on April 4, 2025, 2:05 a.m.