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Chris Sherwood

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US Geological Survey
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Comments and Ratings by Chris Sherwood View all
Updated File Comments Rating
16 Aug 2012 Experimental (Semi-) Variogram calculate the isotropic and anisotropic experimental (semi-) variogram Author: Wolfgang Schwanghart

Great function...helped me do a quick analysis of spatial correlation. One enhancement would be to return a handle to the plotted data, so users could change the color, symbols, etc.

12 Jun 2009 Surface Fitting using gridfit Model 2-d surfaces from scattered data Author: John D'Errico

This routine is almost magic...it is the only routine I have found that finds surfaces I know are there amidst very noisy elevation data. Thanks for contributing it.

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