Figure 15.15
A common method for binning pairs of sample point by direction, such as 1 and 2 in (a), is to use the radial sector (b). geostatistical Analyst in ArcGIS use grid cell instead
The result of the binning process is a set of bin (e.g., grid cells) that sort pairs of sample point by distance and direction. The next step is to compute the average semivariance by: