Local Getis-Ord G
The local Getis-Ord statistic is a ratio of the weighted average of the values in the neighboring locations to the sum of all values. It is called local g or local g*, when not including the value at the location. In local g/g*, a value larger than the mean (or, a positive value for a standardized z-value) suggests a High-High cluster or hot spot, a value smaller than the mean (or, negative for a z-value) indicates a Low-Low cluster or cold spot. For more information, please read: https://geodacenter.github.io/workbook/6b_local_adv/lab6b.html#getis-ord-statistics
In contrast to the Local Moran and Local Geary statistics, the Getis-Ord approach does not consider spatial outliers.
- 1.localG() and localGStar()
Try it yourself in the playground (jsgeoda + deck.gl):