hot spot analysis - variables with positive and negative values

Discussion created by josef.bernard on Feb 13, 2011
Latest reply on Feb 28, 2011 by lrosenshein-esristaff
I would like to use the hot spot analysis Getis Ord Gi for detecting spatial clusters of rural development potentials.
I use factor scores resulting from factor analysis as development indicators, hence their values are both positive and negative. Are results of the hot spot analysis valid even for variables with negative values? Getis Ord general G works only with positive values. The hot spot analysis gives me interesting results with my variables, but is it statistically OK?

Thank you for your answer.

Josef Bernard