Hello everyone:
I have a question about the gamma output which appears with the fitVariogram
results, please.
Here is a sample output:
$ exp_var :Classes �gstatVariogram� and 'data.frame': 12 obs. of 6 variables:
..$ np : num [1:12] 181 499 844 1758 2356 ...
..$ dist : num [1:12] 22.4 52.2 85.4 126.4 176.9 ...
..$ gamma : num [1:12] 116033 138020 133462 133186 134257 ...
..$ dir.hor: num [1:12] 0 0 0 0 0 0 0 0 0 0 ...
..$ dir.ver: num [1:12] 0 0 0 0 0 0 0 0 0 0 ...
..$ id : Factor w/ 1 level "var1": 1 1 1 1 1 1 1 1 1 1 ...
And you notice there are 12 values. However, there are 1000 values in the
actual data set itself. I realize that there are point-pairs selected in order
to produce the gamma values. But how would this relate to either a covariance
or correlation matrix, please?
Thanks in advance,
Sincerely,
Erin
Erin M. Hodgess
Associate Professor
Department of Mathematics and Statistics
University of Houston - Downtown
mailto: hodge...@uhd.edu
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