hscat function

Produce h-scatterplot

Produces h-scatterplots, where point pairs having specific separation distances are plotted. This function is a wrapper around xyplot.

hscat(formula, data, breaks, pch = 3, cex = .6, mirror = FALSE, 
        variogram.alpha = 0, as.table = TRUE,...)

Arguments

• formula: specifies the dependent variable
• data: data where the variable in formula is resolved
• breaks: distance class boundaries
• pch: plotting symbol
• cex: plotting symbol size
• mirror: logical; duplicate all points mirrored along x=y? (note that correlations are those of the points plotted)
• variogram.alpha: parameter to be passed as alpha parameter to variogram ; if alpha is specified it will only affect xyplot by being passed through ...
• as.table: logical; if TRUE, panels plot top-to-bottom
• ...: parameters, passed to variogram and xyplot

Returns

an object of class trellis; normally the h scatter plot

Author(s)

Edzer Pebesma

Note

Data pairs are plotted once, so the h-scatterplot are not symmetric.

References

http://www.gstat.org/

Pebesma, E.J., 2004. Multivariable geostatistics in S: the gstat package. Computers and Geosciences, 30: 683-691.

Examples

library(sp)
data(meuse)
coordinates(meuse) = ~x+y
hscat(log(zinc)~1, meuse, c(0, 80, 120, 250, 500, 1000))