Thank you for your very interesting responses. Today I found following ArcGIS 9.3's GWR info in ESRI site.
http://webhelp.esri.com/arcgisdesktop/9.3/index.cfm?TopicName=Geographically_Weighted_Regression_%28Spatial_Statistics%29 Regards. _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo