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...alues, so I tried labeling them as NA and 0, but still same error message. Shannon index is negative sum of proportion times log of proportion, so I put 1 for missing values to avoid log 0, but still same error message. What do you think I'm missing here? Many thanks in advance. Sanghoon Kang. [[alternative HTML version deleted]]

hello I need basic explanation of variogram and how to use in R. I will appreciate if you supply them. regards Ahmet Temiz ______________________________________ XamimeLT - installed on mailserver for domain @deprem.gov.tr Queries to: postmaster at deprem.gov.tr ______________________________________ The views and opinions expressed in this e-mail message are ...{{dropped}}