gen_loca: Generate locations over a spatial domain

In jelsema/RRSM: Methods for reduced rank spatial models

Description

Generates a pattern of locations over a multiple of the unit square. Various point patterns are permitted.

Usage

gen_loca(method = "grid", ns = NULL, unit = 100, sphere = FALSE,
  x.num = NULL, y.num = x.num, alpha = 1, beta = 2.5, rad = 0.2, ...)

Arguments

method	the pattern of points to generate, allowed values are grid, uniform, radiual, and spots.
ns	the number of locations to generate.
unit	the dimension of the domain, will be unit x unit
sphere	logical, if TRUE, then the locations are projected onto a sphere.
x.num	for method="grid", the number of locations in the x-direction.
y.num	for method="grid", the number of locations in the y-direction.
alpha	for method="radial", the first parameter of the beta distribution.
beta	for method="radial", the second parameter of the beta distribution.
rad	for method="spots", the approximate (relative) radius of each spot (not on same scale as unit).
...	space for additional arguments

Value

A matrix of locations.

Examples

set1 <- gen_loca( method="grid", x.num=4, y.num=5 )
set2 <- gen_loca( method="radial", ns=5000, alpha=1, beta=2.5 )

jelsema/RRSM documentation built on May 19, 2019, 4:02 a.m.