Hi everyone:
I am not sure if my question is too basic, if it is could somebody recomend a text for solving it? I am trying to made a model for a logarithmic data set, those having a great variance. Both, the covariogram for original data, and the covariogram for normalized data show lower values for the nugget in the direction of maximun continuity and a considerable higher effect in two directions of high anisotropy. I think this is anisotropic nugget effect and is releated with the variability of the data, is it?
If I am right, how shall a anisotropic nugget be model? Shouldn�t the nugget be a constant?
I will appreciatte any advice
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