spatialEco (version 2.0-2)

correlogram: Correlogram

Description

Calculates and plots a correlogram

Usage

correlogram(x, v, dist = 5000, ns = 99, ...)

Value

Plot of correlogram and a list object containing:

• autocorrelation is a data.frame object with the following components

• autocorrelation - Autocorrelation value for each distance lag

• dist - Value of distance lag

• lci - Lower confidence interval (p=0.025)

• uci - Upper confidence interval (p=0.975)

• CorrPlot recordedplot object to recall plot

Arguments

x

A sf POINT object

v

Test variable in x

dist

Distance of correlation lags, if latlong=TRUE units are great circle in kilometers

ns

Number of simulations to derive simulation envelope

...

Arguments passed to cor ('pearson', 'kendall' or 'spearman')

Author

Jeffrey S. Evans

Examples

library(sf)
if(require(sp, quietly = TRUE)) {
  data(meuse, package = "sp")
  meuse <- st_as_sf(meuse, coords = c("x", "y"), crs = 28992, 
                    agr = "constant")
}

zinc.cg <- correlogram(x = meuse, v = meuse$zinc, dist = 250, ns = 9)