[bradclark1]

Originally Posted by Skybird

For statistical experts in the audience, the calculation in that analysis bases on the principle of so-called cluster-analysis. This is a method that is often used in psychological projects as well as in estimations concerning the number of deaths after natural desasters. Cluster-Analysis shares some theoretical intention with factor analysis and regroups variables in multi-variable designs by fuctions that in principle are intercorrelations. Cluster analysis for the most delivers reliable results with medium or low chances for huge errors.

My head hurts.