Space Time Getis Ord

Discussion created by ucestw0 on Jul 17, 2013
Latest reply on Aug 11, 2014 by p.glasnermysynergis-esridist

I posses point incident data, where the value for each point represents 1 and only 1 event. The nature of this data means that the usual method of space-time getis ord outlined here fails due to there being 0 variance. Classical ways round this would be to aggregate data or to use grids but this would remove the temporal dynamics of the underlying data. Are there any suggestions of possible ways round this other than breaking down data into time periods and performing a spatial getis ord on each time period?