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Hi, I ve been searching a lot in internet..but I can t find a solution Attached, you find a file. I need for each (Materiale, tpdv, UM) to find sum,avg and count My idea was to aggregate for the 3 parameters ..but I don t know how to get the numeric value (SUM,COUNT,AVG) I need. Can you help me? thank you http://www.nabble.com/file/p22905322/ordini2008_ex.txt ordini2008_ex.txt -- View this

hi I ve a list of item x = ( "xxxxx1" "xxxxx2" "yyyyx3") I need to extract a new vector y = ( "xxxx", "xxxx", "yyyy" ) I mean, for each item I need to extract the first 4