Hi list, I need to generate a field f(x,y) with given variogram. More precisely, I have N points (x,y) and I want to assign f(x,y) such that the variable f has a spatial autocorrelation structure according to a given variogram model.
My impression is that the way to do it is simulated annealing, as described in chapter 11 of the GSLIB manual. Is that correct ? Any other methods ? Is there any easy-to-use & free software for this purpose ? Any recommended literature ? For time series (1-dim case with regular grid) there is the possibilty of random walk, or more generally Levy flights to produce autocorrelated series, or alternatively, define a Fourier spectrum with given slope of the continous log-log power spectrum and inverse transform. Is there an analoguos technique for the 2- (or n-) dim. case ? A possibly related question: How to produce a field with given (geometric or stochastic) multifractal structure ? Thanks for any hint Peter ================================================================= Dr. Peter Bossew Department of Physics and Biophysics, University of Salzburg, Austria [EMAIL PROTECTED] [EMAIL PROTECTED]
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