=SUMPRODUCT(1/COUNTIF(A2:A595,A2:A595))
Actually this formula first count the all values (a2:a595)in full range
(a2:a595) then divide 1 by count of all values and add those with help of
sumprduct
Just like simple eg:- if count of any value is 4 so countif formula will
calculate {4;4;4;4} then if we will divide this like 1/{4;4;4;4;) then
result will be {.25;.25;.25;.25} and sumproduct will sum this and ans will b
1.
From: excel-macros@googlegroups.com [mailto:excel-macros@googlegroups.com]
On Behalf Of Amit Desai (MERU)
Sent: Tuesday, September 24, 2013 11:08 AM
To: excel-macros@googlegroups.com
Subject: RE: $$Excel-Macros$$ Total Count of Unique ID's
Very short & Cute formula... Thanks a lot for sharing this with group.
Can you please explain how it is calculating.
I have tried to check each piece of formula but could not got a clue....
only "=COUNTIF(A2:A595,A2:A595)" is giving me "0" as result! -J
Also if you can share other uses of "SUMPRODUCT".
From: excel-macros@googlegroups.com [mailto:excel-macros@googlegroups.com]
On Behalf Of Excel Beginner
Sent: 24 September 2013 00:01
To: excel-macros@googlegroups.com
Subject: RE: $$Excel-Macros$$ Total Count of Unique ID's
Hi Ashish,
Use this " =SUMPRODUCT(1/COUNTIF(A2:A595,A2:A595)) "
Regards,
Excel Beginner
From: excel-macros@googlegroups.com [mailto:excel-macros@googlegroups.com]
On Behalf Of Ashish Kumar
Sent: Monday, September 23, 2013 11:49 AM
To: excel-macros@googlegroups.com
Subject: $$Excel-Macros$$ Total Count of Unique ID's
Dear Seniors,
I want total count of unique User ID's. These are 594 ID's in data. But
unique is 308. I want only unique user ID's count. and the output is 308
which i want. kindly help. and find the attachment.
Thanks,
Ashish
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