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variogram parameters
3 messages · GEMA FERNANDEZ-AVILES CALDERON, Ashton Shortridge
Well, all are very important for a good fit to your empirical semivariogram. Screw up one, and the curve won't be very close. Maybe what you are looking for is, how to start developing a good model. If so, I would say (based largely on experience teaching this): 1. anisotropy first. No point developing a crummy omnidirectional model 2. model form is next (spherical, exponential, etc) 3. nugget 4. sill and range And iterate 2-4 until it seems ok. Others surely have their own preferences.... Yours, Ashton
On Monday 21 June 2010 16:31:16 GEMA FERNANDEZ-AVILES CALDERON wrote:
Dear list, I have a trivial but not easy quiestion for me. In a semivariogram you use this parameters: a) partial sill b) nugget c) range d) anisotropy parameters Please, could you ranking them beeing 1 the most important parameter? Thank you very much, Gema [[alternative HTML version deleted]]
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Ashton Shortridge Associate Professor ashton at msu.edu Dept of Geography http://www.msu.edu/~ashton 235 Geography Building ph (517) 432-3561 Michigan State University fx (517) 432-1671
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