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Summming a Data range through a cutoff date ?
How do I sum a Data range through a cutoff date ?
I thought I had submitted a common problem but got no response. .. I have a varying CutOff Date in cell B1 currently equal to 8/23 (after formatting). The calendar starts in C2, last Column unknown. The Data itself starts in Row 3, Last row unknown. .. I want to loop through each row and fill in the column B the sum of the range from Column C through the Cutoff Date Column. .. The expected result in Column B (Done) will be 80 for Item Y and 400 for Item Z. .. Cut off Date : 8/23 Item Done 8/21 8/22 8/23 8/24 8/25 ... Y 80 60 20 40 Z 400 140 100 160 120 180 ... .... .... Can you help me ? Thank you, Celeste |
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Summming a Data range through a cutoff date ?
What you have is essentially a sum for a range that will chage dynamically
based on the cuttoff date. I can't think of any way to do this other than doing a user defined function... here is my crack at it. Public Function SumBeforeCutOff(RangeToSum As Range, DateRange As Range, CutOffDate As Date) As Double 'Like vLookUp function, this assumes that RangeToSum and DateRange are the same size and are aligned, and in this case are both only 1 row high Dim c As Range Dim DateRow As Long Dim RangeRow As Long Dim DateRowOffset As Long Application.Volatile DateRow = DateRange.Row RangeRow = RangeToSum.Row DateRowOffset = DateRow - RangeRow For Each c In RangeToSum If c.Offset(DateRowOffset) <= CutOffDate Then SumBeforeCutOff = SumBeforeCutOff + c End If Next End Function This needs to be put in a code module (not an excel object) Then, to use your example, the cell where the sum needs to be would have a formula sortof like this: =SumBeforeCutOff(C3:F3,C$2:F$2,B$1) or if you want to use all possible columns =SumBeforeCutOff(C3:IV3,C$2:IV$2,B$1) This seem to work for you particular example... but there is no error checking and all dates must be actal date values. Also, it won't care if the dates are in order... so in fact, you could add another column at the end, and if the date in the header in before the cutoff date, the value will be included in the sum. Hope this helps. "u473" wrote: How do I sum a Data range through a cutoff date ? I thought I had submitted a common problem but got no response. .. I have a varying CutOff Date in cell B1 currently equal to 8/23 (after formatting). The calendar starts in C2, last Column unknown. The Data itself starts in Row 3, Last row unknown. .. I want to loop through each row and fill in the column B the sum of the range from Column C through the Cutoff Date Column. .. The expected result in Column B (Done) will be 80 for Item Y and 400 for Item Z. .. Cut off Date : 8/23 Item Done 8/21 8/22 8/23 8/24 8/25 ... Y 80 60 20 40 Z 400 140 100 160 120 180 ... .... .... Can you help me ? Thank you, Celeste |
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