Count of Unique values

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Richard - 21 Sep 2005 08:58 GMT

I have a list of values down a column, e.g.

a
a
a
c
c
e
e

etc.

I know I can use advanced filter to get a list of unique values and
then count them, but is there a single function that would achieve
this.

i.e the result for the data above would be 3 (a,c & e)

Rgds

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kk - 21 Sep 2005 09:27 GMT

Hi Richard,

Try...

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

I have a list of values down a column, e.g.

a
a
a
c
c
e
e

etc.

I know I can use advanced filter to get a list of unique values and
then count them, but is there a single function that would achieve
this.

i.e the result for the data above would be 3 (a,c & e)

Rgds

Reply to this Message

KL - 21 Sep 2005 09:36 GMT

Hi Richard,

If you have numeric values then:

=SUM(N(FREQUENCY(A1:A10,A1:A10)>0))

If you have text or mixture of text and numeric and no blanks then:

=SUMPRODUCT(1/COUNTIF(A1:A8,A1:A8))

If you have text or mixture of text and numeric and blank cells then:

=SUMPRODUCT(IF(ISNUMBER(1/COUNTIF(A1:A10,A1:A10)),1/COUNTIF(A1:A10,A1:A10)))
This one has to be ARRAY-entered (Ctrl+Shift+Enter, not just Enter). Blanks
are not counted.

Rgards,
KL

>I have a list of values down a column, e.g.
>
[quoted text clipped - 15 lines]
>
> Rgds

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Aladin Akyurek - 27 Sep 2005 05:46 GMT

> Hi Richard,
>
[quoted text clipped - 11 lines]
> This one has to be ARRAY-entered (Ctrl+Shift+Enter, not just Enter). Blanks
> are not counted.

The last one won't succeed with formula blanks, while

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

or

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

will.

BTW, whenever you need filtering with IF, it's better to replace
SumProduct with Sum.

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