Autocorrelation - Semivariance

The Autocorrelation - Semivariance operation calculates the autocorrelation and semivariance of a raster map. The autocorrelation of a raster map is generated by calculating the correlation between pixel values of a raster map and pixel values of the same raster map for different shifts (lags) in horizontal and vertical directions. The semivariance, a measure for the spatial variability of a raster map, is calculated for the same shifts.