Dear Dr. Bivand and list Thank you for the patience.
Only one question remains >> >> 2. great distance circle >> >> => longlat = TRUE returns no valid observation ... >> similar error messages have been researched in the archived mail >> but no identical case found... >> Please kindly suggest when longlat=TRUE, >> whether the unit of both longitude and latitude is degree.decimal.. >> (confused with the manual explanation "measured in kilometer") >> > > The threshold is in km when longlat=TRUE, but the coordinates are in > decimal degrees. Please state the representation of your coordinates - are > they in decimal degrees or not? => Yes, mine are in decimal degrees. > > No, simply that you are including too many neighbours leading to too much > smoothing for many observations. > > Please try everything on small examples until you understand what you are > doing. Best, use publically available small examples, and include complete > verbatim code (or post code on a website), max. 10 lines. => please advise any publicly available small examples to try errosarlm... I have none at hand.. :P Thank you. Elaine [[alternative HTML version deleted]] _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo