spatialEco (version 0.1-5)

rasterCorrelation: Raster correlation

Description

Performs a simple moving window correlation between two rasters

Usage

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", "covariance"

file.name

Name of output raster (optional)

...

Additional arguments passed to writeRaster

Value

raster class object or raster written to disk

Examples

 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)