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> > Jeff, > > There might be more than one way to accomplish the desired goal, but I > was thinking: > o for every time N the value would be Data(N)- Data(N-1), except > N=0; > o and better yet, if 1 could be a variable dn, then return > Data(N)-Data(N-dn) as long > as N-dn => 0. > OK. Do you have a suggestion for a name for this function? -Jeff Ticket Details =================== Ticket ID: COI-760964 Department: Support IDV Priority: High Status: Open