Count celds of a list without repeating

rguevara · Apr 12th, 2002, 10:25 AM

I have a list of 100 names, in that list are for example 25 names that are repeated so they totalizes 100.
I want to count only the different names, i mean that my result be 25 in my example.
.

[ This Message was edited by: rguevara on 2002-04-12 09:43 ]

Ian Mac · Apr 12th, 2002, 10:43 AM

Quote:

On 2002-04-12 09:25, rguevara wrote:
I have a list of 100 names, in that list are for example 25 names that are repeated so they totalizes 100.
I want to count only the different names, i mean that my result be 25 in my example.
Sorry my english I dont speak verry well.

use:

=SUM(IF(LEN(A1:A100)>0,1/COUNTIF(A1:A100,A1:A100)))

This is an Array Formula, you will have to use Ctrl+Shift+Enter NOT just enter. If done correctly the formula Excel will put {}'s round the formula.

I can't lay claim to this, credit goes to David Hager for the 1/COUNTIF(A1:A100,A1:A100) bit and Aladin for the IF(LEN(A1:A100)>0 bit.

rguevara · Apr 12th, 2002, 11:16 AM

I dit it, i wonder if four formula works with a matrix i will try it and tell you.
Thank very much.
Renzo

[ This Message was edited by: rguevara on 2002-04-12 10:28 ]

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Apr 12th, 2002, 10:25 AM	#1
rguevara New Member Join Date: Apr 2002 Posts: 8	I have a list of 100 names, in that list are for example 25 names that are repeated so they totalizes 100. I want to count only the different names, i mean that my result be 25 in my example. . [ This Message was edited by: rguevara on 2002-04-12 09:43 ]

Apr 12th, 2002, 11:16 AM	#3
rguevara New Member Join Date: Apr 2002 Posts: 8	I dit it, i wonder if four formula works with a matrix i will try it and tell you. Thank very much. Renzo [ This Message was edited by: rguevara on 2002-04-12 10:28 ]