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Got a doozy!
Ok let me see if I can explain this correctly. Items in column A are sorted so all items of like name are in order. want to do a running average on numbers in Column E, but only on item that match the previous cell. For instance Column A has bp-161A in ro 1, 2, & 3 bp-161b in row 4. In row 1 column E 45,row 2 60, row 3 30 row 4 63. Now I need for each cell in column F to look at column determine if it is of the same identity and average column E of tha row with any previous rows above it. In this senerio row 1 column would have 45 as its answer, row 2 would have the average of row1 and of column E, row 3 would be average of row 1-3 and row 4 would have 6 because it begins a new identity. Hope I have given enough details her for you folks to help me out. Michae -- Michael Wis ----------------------------------------------------------------------- Michael Wise's Profile: http://www.excelforum.com/member.php...nfo&userid=699 View this thread: http://www.excelforum.com/showthread.php?threadid=27494 |
Got a doozy!
in F1 put in the formula
=Sumif($A$1:A1,A1,$E$1:E1)/countif($A$1:A1,A1) then drag fill down the column. -- Regards, Tom Ogilvy "Michael Wise" wrote in message ... Ok let me see if I can explain this correctly. Items in column A are sorted so all items of like name are in order. I want to do a running average on numbers in Column E, but only on items that match the previous cell. For instance Column A has bp-161A in row 1, 2, & 3 bp-161b in row 4. In row 1 column E 45,row 2 60, row 3 30, row 4 63. Now I need for each cell in column F to look at column A determine if it is of the same identity and average column E of that row with any previous rows above it. In this senerio row 1 column F would have 45 as its answer, row 2 would have the average of row1 and 2 of column E, row 3 would be average of row 1-3 and row 4 would have 63 because it begins a new identity. Hope I have given enough details here for you folks to help me out. Michael -- Michael Wise ------------------------------------------------------------------------ Michael Wise's Profile: http://www.excelforum.com/member.php...fo&userid=6998 View this thread: http://www.excelforum.com/showthread...hreadid=274942 |
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