Raster correlation

Performs a simple moving window correlation between two rasters

rasterCorrelation(x, y, s = 3, type = "pearson", file.name = NULL, ...)

Arguments

x	raster class object for x
y	raster class object for y
s	Scale of window. Can be a single value, two values for uneven window or a custom matrix. Must be odd number (eg., s=3, for 3x3 window or s=c(3,5) for 3 x 5 window)
type	Type of output, options are: "pearson", "spearman",
file.name	Name of output raster (optional)
...	Additional arguments passed to writeRaster

Value

raster class object or raster written to disk

Note

Depends: raster

Author

Jeffrey S. Evans <jeffrey_evans@tnc.org>

Examples

# \donttest{
 library(raster)                                                                    
 b <- brick(system.file("external/rlogo.grd", package="raster"))
 x <- b[[1]]
 y <- b[[3]]
 r.cor <- rasterCorrelation(x, y, s = 5, type = "spearman")
 plot(r.cor)
# }