How Can I Fix - Counting Unique Values and Date Formatting?

Counting Unique Values and Date Formatting

I have a column with CLIENT IDs (column C) and a column with DATES (column G) in a spreadsheet.
I need to find unique Client IDs from column C depending on a date.
When I look at the date in column G, it displays as mm/dd/yyyy AND the time.
This is the formula
I am using:
=SUM(--(FREQUENCY(IF(G1130:G1181>= "10/01/2010",MATCH(C1130:C1181,C1130:C1181,0)),ROW(INDIRECT("1:"&ROWS(C1130:C1181))))>0))
 
However, I cannot get a count.
Is it the formula I am using or could it be the way the date is formated in the spreadsheet?
 
Thank you in advance for your help.

Anwsers to the Problem Counting Unique Values and Date Formatting

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I have a column with CLIENT IDs (column C) and a column with DATES (column G) in a spreadsheet.
I need to find unique Client IDs from column C depending on a date.
When I look at the date in column G, it displays as mm/dd/yyyy AND the time.
This is the formula
I am using:
=SUM(--(FREQUENCY(IF(G1130:G1181>= "10/01/2010",MATCH(C1130:C1181,C1130:C1181,0)),ROW(INDIRECT("1:"&ROWS(C1130:C1181))))>0))
 
However, I cannot get a count.
Is it the formula I am using or could it be the way the date is formated in the spreadsheet?
 
Thank you in advance for your help.
 
 
 

You have replies at your other post.
http://social.answers.microsoft.com/Forums/en-US/excslcreate/thread/d00cbbe4-8383-4c78-bc74-7c7c1420fca2
--
Biff
Microsoft Excel MVP

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