Hello, all: I'm trying to use proc variogram to study spatial correlation in a variable (present2012). The difficulty is that the range class 0 and 2 through 50 make sense. The range class 1, however, is not representative, for some reasons I won't go into here. I know how to condition the variogram estimate on the lags from 2 to 50: proc variogram data=summarizedbycentroid plots=all; store out=storedmodel / label='WNV cases'; compute lagd=.001 maxlag=50; coord xc=x yc=y; model form=exp rangelag=2 to 50; var present2012; run; but I can't figure out how to do something similar for (0, 2:50). I've tried everything, but I'm pretty sure it's not supported. Is there some way I can run the variogram, save the pairs, delete those in class 1, then run the variogram with this modified set? Etc. Thanks for any insights, JD
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