“…The former contains histogram, scatterplot and multiplot, which are graphical tools for single variable, bivariate and multivariable analysis respectively. The latter incorporates some popular spatial autocorrelation measures, which are Moran's I (Moran, 1950), Geary's c (Geary, 1954), LISA (Local indicators of spatial association, Anselin & Getis, 1992;Anselin, 1995;Bao, Henry, Barkley & Brooks, 1995;Bao, Anselin, Martin & Diana, 1998) and Gi (Getis & Ord, 1993). According to the scope or scale of analysis, the first two are global measures and the rest are local measures.…”