envplot: Plot Empirical Variogram and its Pointwise Envelope

In variosig: Testing Spatial Dependence Using Empirical Variogram

Description

Plot empirical variogram and its pointwise variogram envelope.

Usage

envplot(envlist, shade = TRUE, shade.color = "lightgrey",
        show.variance = FALSE, xlim = NULL, ylim = NULL,
        main = NULL, xlab = "Distance", ylab = "Semivariance")

Arguments

envlist	output from envelope function.
shade	logical. If TRUE, the envelope is shaded.
shade.color	string. Color of the envelope if it is shaded.
show.variance	logical. Plot horizontal lines showing the sample variance and its confidence interval of residuals ignoring spatial information.
xlim, ylim	x-axis and y-axis range. If NULL, default values are chosen.
main	string. Title of the plot.
xlab, ylab	string. Labels for x- and y-axis.

Value

Nothing is returned, generates a plot.

Author(s)

Craig Wang

See Also

envelope to use Monte Carlo permutations for generating variogram envelope.

Examples

## Not run: 
library(sp)
data(meuse)
coordinates(meuse) = ~x+y
vario0 <- gstat::variogram(log(zinc)~1, meuse)
varioEnv <- envelope(vario0, data = meuse, formula = log(zinc)~1, nsim = 499)
envplot(varioEnv)

## End(Not run)

variosig documentation built on Feb. 10, 2020, 1:06 a.m.