A sample (empirical) variogram computed using the
function variog
is added to the current plot.
# S3 method for variogram
lines(x, max.dist, type = "o", scaled = FALSE,
pts.range.cex, …)
an object of the class "variogram"
, typically an
output from the function variog
.
maximum distance for the x-axis. By default takes the maximum distance for which the sample variogram was computed.
type of line for the empirical variogram. The default is
"o"
(dots and lines). See documentation for
lines
for further details.
logical. If TRUE
the variogram values are divided by the
sample variance. This allows comparison between variograms of
different variables.
optional. A two elements vector with maximum and
minimum values for the caracter expansion factor cex
. If
provided the point sizes in binned variogram are proportional to the
number of pairs of points used to compute each bin.
other arguments to be passed to the function
lines
.
A line with the empirical variogram is added to the plot in the current graphics device. No values are returned.
Further information on the package geoR can be found at: http://www.leg.ufpr.br/geoR.
variog
, lines.variogram
,
lines.variomodel
, variog.model.env
,
variog.mc.env
, plot.grf
, lines
.