geom_variogram: Helper geom for variogram objects

In famuvie/ArchaeologicalFloors: Companion to the Paper "Archaeological Floors"

Description

Adds a ggplot2 layer with a line plot of a variogram model.

Usage

geom_variogram(x, max.dist, scaled = FALSE, ...)

Arguments

x	a variomodel object
max.dist	miximum distance (x-axis) to compute and draw the variogram
scaled	logical. If TRUE the total sill in the plot equals 1
...	not used. This function is an adaptation to ggplot2 of the original function lines.variomodel in geoR.

Examples

## Computing and plotting empirical variogram
library(geoRcb)
library(ggplot2)
vg <- variog(s100, max.dist = 1)
ggplot(vg)

## Estimating parameters by wheighted least squares
vgmdl <- variofit(vg, ini = c(1, .3), fix.nugget = TRUE)

## Adding fitted model to the empirical variogram
ggplot(vg) + geom_variogram(vgmdl)

famuvie/ArchaeologicalFloors documentation built on May 16, 2019, 10:02 a.m.