Hi list fellows, Do someone have any idea to calculate the standard deviation of GWR predictions (prediction variances), similary as we calculate with the sqrt of prediction variance provided by kriging? Would be thankful for any help? Best regards Imran
How to find GWR prediction variance as a measure of uncertainty?
2 messages · Muhammad Imran, Roger Bivand
3 days later
On Sun, 15 Apr 2012, Muhammad Imran wrote:
Hi list fellows, Do someone have any idea to calculate the standard deviation of GWR predictions (prediction variances), similary as we calculate with the sqrt of prediction variance provided by kriging?
As spgwr says when it loads: "This package does not constitute approval of GWR as a method of spatial analysis" The ability of GWR to fit local coefficients sensibly (given doubts about appropriate bandwidths) is not established. Consequently, making predictions is encumbered with more than just the uncertainty of fitting the local weighted regression. So it is not clear how you should proceed - using GWR is an exploratory technique at best until its properties have been checked. Roger
Would be thankful for any help? Best regards Imran
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Roger Bivand Department of Economics, NHH Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no