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Finding Missing and duplicated Numbers
I have a table
name a 15
name b 16
name c 18
There will be 80 names and 54 numbers (1 to 54).
I need a formular that would search the list of numbers and report back any
duplicate numbers and missing numbers.
Is that possible?
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Utf
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3/1/2010 12:51:01 PM |
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Hi,
For duplicates see
http://www.cpearson.com/excel/Duplicates.aspx
"Ujpest" wrote:
> I have a table
>
> name a 15
> name b 16
> name c 18
>
> There will be 80 names and 54 numbers (1 to 54).
>
> I need a formular that would search the list of numbers and report back any
> duplicate numbers and missing numbers.
>
> Is that possible?
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Utf
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3/1/2010 1:05:01 PM
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Here is a simple solution. I put my names in A6:A85 and numbers in B6:B85
If your numbers are somewhere else change the references to $B$6:$B$85 in my
formulas but do not change reference to A1.
In C6 enter this formula =IF(COUNTIF($B$6:$B$85,B6)-1,"Duplicate","")
Copy it down the column by double clicking the fill handle
Numbers that are duplicated will be so indicated
In D6 enter this formulas =IF(ISNA(MATCH(ROW(A1),$B$6:$B$85,0)),ROW(A1),"")
Copy down the column
Numbers that are missing in column B will be displayed in column D
best wishes
--
Bernard Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
"Ujpest" <Ujpest@discussions.microsoft.com> wrote in message
news:CBCAA1E3-B5FE-4088-9575-16478B25F07F@microsoft.com...
> I have a table
>
> name a 15
> name b 16
> name c 18
>
> There will be 80 names and 54 numbers (1 to 54).
>
> I need a formular that would search the list of numbers and report back
> any
> duplicate numbers and missing numbers.
>
> Is that possible?
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Reply
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Bernard
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3/1/2010 1:27:25 PM
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That is brilliant
thank you
"Bernard Liengme" wrote:
> Here is a simple solution. I put my names in A6:A85 and numbers in B6:B85
> If your numbers are somewhere else change the references to $B$6:$B$85 in my
> formulas but do not change reference to A1.
>
> In C6 enter this formula =IF(COUNTIF($B$6:$B$85,B6)-1,"Duplicate","")
> Copy it down the column by double clicking the fill handle
> Numbers that are duplicated will be so indicated
>
> In D6 enter this formulas =IF(ISNA(MATCH(ROW(A1),$B$6:$B$85,0)),ROW(A1),"")
> Copy down the column
> Numbers that are missing in column B will be displayed in column D
>
> best wishes
> --
> Bernard Liengme
> Microsoft Excel MVP
> http://people.stfx.ca/bliengme
>
> "Ujpest" <Ujpest@discussions.microsoft.com> wrote in message
> news:CBCAA1E3-B5FE-4088-9575-16478B25F07F@microsoft.com...
> > I have a table
> >
> > name a 15
> > name b 16
> > name c 18
> >
> > There will be 80 names and 54 numbers (1 to 54).
> >
> > I need a formular that would search the list of numbers and report back
> > any
> > duplicate numbers and missing numbers.
> >
> > Is that possible?
>
> .
>
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Utf
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3/1/2010 6:41:01 PM
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Thanks for feedback
Bernard
"Ujpest" <Ujpest@discussions.microsoft.com> wrote in message
news:18988CDF-A3BB-439B-9076-8C3BBE87450A@microsoft.com...
> That is brilliant
> thank you
>
> "Bernard Liengme" wrote:
>
>> Here is a simple solution. I put my names in A6:A85 and numbers in B6:B85
>> If your numbers are somewhere else change the references to $B$6:$B$85 in
>> my
>> formulas but do not change reference to A1.
>>
>> In C6 enter this formula =IF(COUNTIF($B$6:$B$85,B6)-1,"Duplicate","")
>> Copy it down the column by double clicking the fill handle
>> Numbers that are duplicated will be so indicated
>>
>> In D6 enter this formulas
>> =IF(ISNA(MATCH(ROW(A1),$B$6:$B$85,0)),ROW(A1),"")
>> Copy down the column
>> Numbers that are missing in column B will be displayed in column D
>>
>> best wishes
>> --
>> Bernard Liengme
>> Microsoft Excel MVP
>> http://people.stfx.ca/bliengme
>>
>> "Ujpest" <Ujpest@discussions.microsoft.com> wrote in message
>> news:CBCAA1E3-B5FE-4088-9575-16478B25F07F@microsoft.com...
>> > I have a table
>> >
>> > name a 15
>> > name b 16
>> > name c 18
>> >
>> > There will be 80 names and 54 numbers (1 to 54).
>> >
>> > I need a formular that would search the list of numbers and report back
>> > any
>> > duplicate numbers and missing numbers.
>> >
>> > Is that possible?
>>
>> .
>>
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Reply
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Bernard
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3/2/2010 8:10:09 PM
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4 Replies
567 Views
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