How do I count the # of unique occurences of a text in a column?

[Guest]

I am looking for a command/formulat to count (return a single number) the
number of unique text entries in a column.

 

[Peo Sjoblom]

One way

=SUMPRODUCT((A1:A10<>"")/COUNTIF(A1:A10,A1:A10&""))


Regards,

Peo Sjoblom

 

[Guest]

This is VERY resource intensive, so be careful using it on a list of several
thousand entries

It's an array formula - enter it with the key combination Ctrl+Shift+Enter

=SUM(1/COUNTIF(A1:A10,A1:A10))

 

[Guest]

I like yours MUCH better, Peo

One way

=SUMPRODUCT((A1:A10<>"")/COUNTIF(A1:A10,A1:A10&""))


Regards,

Peo Sjoblom

 

[Aladin Akyurek]

It's the SumProduct version of Hager's formula extended to take care of
formula-blanks and empty cells,

{=SUM(IF(A1:A10<>"",1/COUNTIF(A1:A10,A1:A10)))}

 

[Guest]

Experts
How do you adjust this to account for columns that may be different in
length? One time you need A375 and the next time you use it is A584.


JayMan

 

[T. Valko]

Sounds like you want to use a dynamic range. See this:

http://contextures.com/xlNames01.html#Dynamic

 

[Guest]

T
Do I now plug that in like this, Range is the name of the range
{=SUM(IF(Range<>"",1/COUNTIF(Range,Range)))}

not really sure here

JayMan

 

[T. Valko]

Yes. However, I would use the SUMPRODUCT formula that was posted in your
thread:

=SUMPRODUCT((Range<>"")/COUNTIF(Range,Range&""))

 

[Guest]

THANK YOU

Yes. However, I would use the SUMPRODUCT formula that was posted in your
thread:

=SUMPRODUCT((Range<>"")/COUNTIF(Range,Range&""))

 

[T. Valko]

You're welcome!

--
Biff
Microsoft Excel MVP

THANK YOU