BLUE : “Best Linear Unbiased Estimator”
Best : Minimium
error variance.
Linear : Linear
combination of sample values.
Unbiased : E(Z*-Z) = 0
Estimator: An estimate
Is unbiasedness a fas? E(Z*-Z) = 0
E(sumwZ(x) – Z) = 0
Variograms represent only mean square differences, is this a
major shortcoming of geostatistics?
Digby Millikan wrote:
Variograms represent only mean square differences, is this a major
shortcoming of geostatistics?
Geostatistics is more than variograms. Search e.g. for multipoint
geostatistics.
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No, average of (Z*-Z) is zero average of (sum wZi - Z i)s zero sum wi times average of Z - average if Z =0 if sum w = 1 then this is true, otherwise not Says nothing at all about the average of Z. OK? IsobelDigby Millikan <[EMAIL PROTECTED]> wrote:BLUE : Best Linear Unbiase
Hi Kim,
You should expect that the simulated categorical maps are less smooth
than the maps of probabilities of occurrence generated by indicator kriging.
Nevertheless, the simulated maps should honor the data at sampled locations.
You might be doing something wrong, but hard to tell until we hav
