excel get count of distinct names

neoptoent
neoptoent used Ask the Experts™
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Hi,
I am trying to find an excel formula to get the count of distinct names in column A based on the number in column b

so in this table, I would want the distinct number of names in column A where the value in column B is 2 (so in this example the count would be 3... jane, bob and mary)

I cant figure out this formula

Please help
note:
The list is dynamic so I need to use the whole column for ranges
list.xlsx
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Top Expert 2015

Commented:
Use pivot table, put names in filter and team in value. You will get results.
If you want to use a formula, you can try this:

=SUM((B2:B9=2)/COUNTIFS(A2:A9,A2:A9,B2:B9,B2:B9))

This is an array formula, so you enter it into your cell select ctrl+shift+enter.

Flyster
Top Expert 2008

Commented:
Use this formula:

=SUM(IF(FREQUENCY(IF((LEN(A2:A100)>0)*(B2:B100=1),MATCH(A2:A100,A2:A100,0)),ROW(A2:A100)-ROW(A2)+1),1))

Change the bottom row to include the maximum number of possible rows.

Enter the formula by pressing CTRL+SHIFT+ENTER.

The formula handles blank rows so you don't need to worry about the bottom row in the cell references. Just make it low enough to handle all possible scenarios.

Kevin
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Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
simple like this without use of control shift enter

=SUMPRODUCT((B2:B9=2)*(A2:A9<>"")/COUNTIFS(A2:A9,A2:A9,B2:B9,B2:B9))

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Author

Commented:
Hi
Thanks
I have the excel sheet as a named table
Would I be able to use the table name as a reference instead of a range

Table name: cname
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
Yes,

Just click on the b2:b9 then erase it with back space then with mouse select the column of the table then the table name with its column will be automatically put inside formula. You don't have to type the table name and column name there. If you have to then put the table name then [ column name ]

Author

Commented:
Thanks

If I had a thirds column and wanted to do the counting based on the value 2 in column b as well as the value of "yellow" in column c

So count all distinction values in column A where column b is 2 and column c is yellow

Possible?
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
Then it is not possible only with formula then it requires merging UDF with formula

Author

Commented:
Not sure what that means... Can I use a formula ?
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
that means that inside formula you could use the UDF.

see attached file.  it now works with condition of yellow cells as well.

the below code is inserted in module of attached workbook which create the defined function within the formula

=SUM((B2:B10=2)*(A2:A10<>"")*(IF(GetCellColor(A2:A10)=65535,1,0))/COUNTIFS(A2:A10,A2:A10,B2:B10,B2:B10))

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as you can see the new argument criteria if GetCellColor of the range equals to 65535 which means yellow then true otherwise false.  

remember the formula is array formula and requires the special keystroke of Control Shift and Enter to enter.

Function GetCellColor(xlRange As Range)
Dim indRow, indColumn As Long
Dim arResults()
Application.Volatile
If xlRange Is Nothing Then
Set xlRange = Application.ThisCell
End If
If xlRange.Count > 1 Then
ReDim arResults(1 To xlRange.Rows.Count, 1 To xlRange.Columns.Count)
For indRow = 1 To xlRange.Rows.Count
For indColumn = 1 To xlRange.Columns.Count
arResults(indRow, indColumn) = xlRange(indRow, indColumn).Interior.Color
Next
Next
GetCellColor = arResults
Else
GetCellColor = xlRange.Interior.Color
End If
End Function

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list.xlsm

Author

Commented:
Just to make sure. The actual cell color won't change, the word yellow will appear in the cell
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
In this case it is even easier. No need for any UDF.

Assuming the column to check the value yellow is range c2:c10 then =SUM((B2:B10=2)*(A2:A10<>"")*(C2:C10="yellow")/COUNTIFS(A2:A10,A2:A10,B2:B10,B2:B10,C2:C10,C2:C10))

Author

Commented:
And this will give me the unique values in a
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
Yes

Author

Commented:
I am getting a #div/0 error
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
please see attached.
list.xlsx

Author

Commented:
In a sheet I am working with the a2:a10 <> "" is equal to 0
So that is causing the error

How can I fix that
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
ok change this a2:a10 <> "" to a2:a10 <> "0"

if it does not work, can u please upload a example?

Author

Commented:
ok the issue is when the column has blanks in the rows

If there a way to ignore the empty cells
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
see attached example.
list.xlsx

Author

Commented:
if column b or c have a blank cell then I get the same eror of div0.
Is there a way to ignore blanks in column B and C.
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
Add this inside that formula right next to (A2:A10<>"")

Like this (A2:A10<>"")*(C2:C10<>"")*(B2:B10<>"")
Top Expert 2008

Commented:
Y'all seem to be having a lot of fun with this.

I'll repeat my formula above as it had already solved the original question and, with the addition of two more conditions ("0" in column A and "Yellow" in column C), still solves the problem with any number of data rows:

=SUM(IF(FREQUENCY(IF((LEN(A2:A100)>0)*(A2:A100<>0)*(B2:B100=2)*(C2:C100="Yellow"),MATCH(A2:A100,A2:A100,0)),ROW(A2:A100)-ROW(A2)+1),1))

Enter the formula by pressing CTRL+SHIFT+ENTER.

Kevin
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
zorvek,  

yes, really had fun :-)


without control shift enter ;-)

=SUMPRODUCT((B2:B13=2)*(A2:A13<>0)*(C2:C13="Yellow")*(A2:A13<>"")*(B2:B13<>"")*(C2:C13<>"")/COUNTIFS(A2:A13,A2:A13,B2:B13,B2:B13,C2:C13,C2:C13))


with attachment
list.xlsx

Author

Commented:
thanks

if you delete the contents of c10 so the cell is empty the formula shows a div/0
can if ignore the empty cells in columns b &C?
Professor JMicrosoft Excel Expert
Top Expert 2014

Commented:
neoptoent,

please find attached.  this version requires Control + Shift + Enter and it will take care of the empty cells too.
EE.xlsx

Author

Commented:
Hi
Can you please copy the formula into the thread, can't open the file
Microsoft Excel Expert
Top Expert 2014
Commented:
=SUM(IF((B2:B13=2)*(A2:A13<>0)*(C2:C13="Yellow")*(A2:A13<>"")*(B2:B13<>"")*(C2:C13<>""),1/COUNTIFS(A2:A13,A2:A13,B2:B13,B2:B13,C2:C13,C2:C13),0))

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with Control Shift Enter

Author

Commented:
Great

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