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vba remove duplicates and sum the value

Posted on 2010-09-13
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Last Modified: 2012-05-10
I have table as below

date     -         value      -       units
-------------   ------------      ------------
02/02/2000     32.30            23
03/02/2000     22.30            20
03/02/2000     62.30            21

if there more than one occurance of same date, i need to retain just one occurance and sum the values on same date

hence above table will look as below

date     -         value      -       units
-------------   ------------      ------------
02/02/2000     32.30            23
03/02/2000     84.60            41
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Question by:cynx
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7 Comments
 
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Expert Comment

by:Ingeborg Hawighorst
ID: 33661723
Hello cynx,

this looks like the perfect scenario for a pivot table.

Get started here: http://peltiertech.com/Excel/Pivots/pivotstart.htm


or post a workbook, so we can help you out in your own file.

Post only dummy data, no confidential data, please.

cheers, teylyn
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Expert Comment

by:Ingeborg Hawighorst
ID: 33661762
see attached for a pivot table example based on your data

cheers, teylyn
pivot.xls
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Accepted Solution

by:
Saurabh Singh Teotia earned 500 total points
ID: 33661814
Assuming your dates are in A Column starting from row-1 and you want to sum column b and column c values then you can use the following code..
Saurabh...

Sub moddata()
    Dim rng As Range, cell As Range, r As Range
    Dim lrow As Long, i As Long
    
    Dim rng1 As Range, rng2 As Range
    
    lrow = Cells(Cells.Rows.Count, "a").End(xlUp).Row

    Set rng = Range("A2:A" & lrow)
    Set rng1 = Range("b2:b" & lrow)
    Set rng2 = Range("c2:c" & lrow)
i = 2

Do Until i > Cells(Cells.Rows.Count, "a").End(xlUp).Row



        Set r = Range("A2:A" & i)

        If Application.WorksheetFunction.CountIf(r, Cells(i, "a")) > 1 Then
            Rows(i).Delete
            
            
        Else
            Cells(i, "b").Value = Application.WorksheetFunction.SumIf(rng, DateValue(Cells(i, "A").Value), rng1)
            Cells(i, "c").Value = Application.WorksheetFunction.SumIf(rng, DateValue(Cells(i, "A").Value), rng2)

i = i + 1

        End If
    Loop



End Sub

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Author Comment

by:cynx
ID: 33661864
thanks guys, yes i am familiar with pivot tables, but i require this to be done thru vba since i am working on a macro and i am required to convert the files first in above format.

I will try saurabh's code and get back !
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Expert Comment

by:Ingeborg Hawighorst
ID: 33661887
@Saurabh...

Why use VBA when native Excel can provide the same functionality much more efficiently?

Isn't that counter-productive and against good practice and spreadsheet design?

Many askers want a VBA solution (apparently), but it seems they don't know about the functionality Excel offers without macros. Just because it can be done with VBA does not mean it's the best way to do it.

I'd go for the pivot table over a VBA solution any time. It's definitely faster and more flexible.

cheers, teylyn
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Expert Comment

by:Saurabh Singh Teotia
ID: 33661913
teylyn,
I thought about pivot table as well but when i re-read and tag zones he head visual basic programming and which gave me a feeler that he is looking for code solution which is just coming by my experience and that;s the reason a code..
Saurabh...
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Author Comment

by:cynx
ID: 33665143
Thanks !

@teylyn: i preferred VBA solution, since i need to use these sheets as input to my macro. if there are 100s of such sheets, a click of button and let the code behind do the job is more productive rather user creating pivot for each !

@saurabh: the code works perfect as i require !

cheers,
mehul
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