| lines.variomodel.grf {geoR} | R Documentation |
This functions adds to the graphics device a line with the theoretical
(true) variogram used when generating simulations with
the function grf.
## S3 method for class 'grf': lines.variomodel(x, max.dist = max(dist(x$coords)), length = 100, lwd = 2, ...)
x |
an object from the class grf typically an output of
the function grf. |
max.dist |
maximum distance to compute and plot the true variogram. Defaults to the maximum distance between two data locations. |
length |
number of points used to compute and draw the variogram line. |
lwd |
width of the line. |
... |
further arguments to be passed to the function
curve. |
A line with the true variogram model is added to the current plot on the graphics device. No values are returned.
Paulo J. Ribeiro Jr. paulojus@leg.ufpr.br,
Peter J. Diggle p.diggle@lancaster.ac.uk.
Further information on the package geoR can be found at:
http://www.leg.ufpr.br/geoR.
lines.variomodel,
grf, plot.grf, curve.
sim <- grf(100, cov.pars=c(1, .25)) # simulates data plot(variog(sim, max.dist=1)) # plot empirical variogram