HELLO ALL: I have geophysical data that is measured each 10 cm down a drill hole. I want to apply a three point filter down the hole. That is: for readings at 10, 20, 30 , 40, 50 cm etc I want to apply a formula that incorporates the values at 10 , 20 & 30 cm for 20 cm; 20, 30 & 40 cm for 30 cm etc. How do you do this. I understand how you would do this in excel or in a vb array but I haven't done anything like this in a database. Is this where a cursor is used. Thanks for any hints. Joe DB
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