I have been calculating log-normal kriging for a data set using geoR.... and I obtained suspicious estimations... so I tried with another data set, and I got the same...
I am wondering that maybe there is another problem.... like the data not being strictly log-normal.. could this give such a huge variances?
Sample data is (min, mean and max): 0 23 314 std. error: 59.55
If I do OK, I get: predictions: -6 31 218 std err.: 27 40 55
If I do log-OK I get: predictions: 0.52 37 333 std. err.: 2 140 584
Any ideia why I get such a huge variances when using log-normal kriging?
Is it a problem of the data distribution? Is there any possibility of a code bug???
Any comment will be muuuuch apreciated!
Thank you Marta
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