topic Re: Kriging Help in ArcGIS GeoStatistical Analyst Questions https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-help/m-p/603486#M1334 <HTML><HEAD></HEAD><BODY><SPAN>Did you use any ESDA tools to check the kriging assumptions?&nbsp; If the predictions are vastly different than the input points, it may be that your data is violating the assumptions for kriging, or it might be that your fitted semivariogram model isn't well specified.</SPAN><BR /><BR /><SPAN>By default in ArcGIS 10, the filled contours map is a surface for the predictions, and the map will display predictions at the input points, not the value of the input points themselves.&nbsp; If you want Ordinary Kriging to give exact predictions at the input point locations, you can set Measurement Error to 0.&nbsp; However, this will cause a jump in the surface at the input point locations.</SPAN></BODY></HTML> Wed, 01 Dec 2010 19:30:08 GMT EricKrause 2010-12-01T19:30:08Z Kriging Help https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-help/m-p/603485#M1333 <HTML><HEAD></HEAD><BODY><SPAN>I have two Ordinary Kriging maps one with 95 points and the other with the same data except with 90 points. I had deleted 5 of the points because they were repeats but when I ran the Kriging model I get wrong predictions. For example I have a point that has an extremely high value but when I run the model with filled contours it doesn't show it has an extremely high value. Does anybody know what I can do to fix it?</SPAN><BR /><BR /><SPAN>Thanks,</SPAN><BR /><SPAN>Justin</SPAN></BODY></HTML> Wed, 01 Dec 2010 17:21:30 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-help/m-p/603485#M1333 JustinMarsh 2010-12-01T17:21:30Z Re: Kriging Help https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-help/m-p/603486#M1334 <HTML><HEAD></HEAD><BODY><SPAN>Did you use any ESDA tools to check the kriging assumptions?&nbsp; If the predictions are vastly different than the input points, it may be that your data is violating the assumptions for kriging, or it might be that your fitted semivariogram model isn't well specified.</SPAN><BR /><BR /><SPAN>By default in ArcGIS 10, the filled contours map is a surface for the predictions, and the map will display predictions at the input points, not the value of the input points themselves.&nbsp; If you want Ordinary Kriging to give exact predictions at the input point locations, you can set Measurement Error to 0.&nbsp; However, this will cause a jump in the surface at the input point locations.</SPAN></BODY></HTML> Wed, 01 Dec 2010 19:30:08 GMT https://community.esri.com/t5/arcgis-geostatistical-analyst-questions/kriging-help/m-p/603486#M1334 EricKrause 2010-12-01T19:30:08Z