Unique counts of a value per day

tylercweinrich

New Member
Joined
May 13, 2014
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1
I have a pretty simple spreadsheet with two columns. In Column A is a unique identifier for a user (608901, 505141, etc.). In Column B is a date the user logged in (5/1/2014). For a week's span there are about 25k rows.

Users can and do log in multiple times per day creating duplicate entries for a single day (680717 might show up 3 times for 5/1/2014). What I need to figure out is how to get a count of all unique logins per day. So if 680717 in previous example logged in 80 times on 5/1/2014, that only counts as 1 unique login for 5/1/2014.

I'm at a freakin loss with this. Searched everywhere and just can't get it.
 

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