acfft: Spatial autocorrelation diagnostics

In levisc8/spind: Spatial Methods and Indices

Spatial autocorrelation diagnostics

Description

A function for calculating spatial autocorrelation using Moran's I.

Usage

acfft(coord, f, lim1 = 1, lim2 = 2, dmax = 10)

Arguments

coord	A matrix of two columns with corresponding cartesian coordinates. Currently only supports integer coordinates.
f	A vector which is the same length as x and y
lim1	Lower bound for first bin. Default is 1
lim2	Upper bound for first bin. Default is 2
dmax	Number of distance bins to examine. Bins are formed by annuli of gradually increasing radii. Default is 10.

Value

A vector of Moran's I values for each distance bin.

Author(s)

Gudrun Carl

Examples

data(musdata)
coords <- musdata[ ,4:5]
mglm <- glm(musculus ~ pollution + exposure, "poisson", musdata)

ac <- acfft(coords, resid(mglm, type = "pearson"), lim1 = 0, lim2 = 1)
ac

levisc8/spind documentation built on April 3, 2024, 4:52 a.m.