A leading Z-get indicates increased possible of being part of the sizzling hot put components
As described in ArcGIS 10.2, the OHS analysis is a tool that uses the Getis-Ord Gi * statistic [Eq. (4)] to estimate the associated Z-score for each feature. To aggregate the Z-scores, OHS applies the average and the median nearest-neighbor calculations given incremental distances between observations as estimated using the incremental spatial autocorrelation tool.