## Tuesday, August 27, 2013

Question:

Not sure on how to approach this:

So here's how my first spreadsheet is setup
Column A - staff name
Column B - certification boolean (Y or N)

Now in a different worksheet, I am distributing the staff into 2 different locations.  I'm simply just typing their names under a table with the location name as the header, i.e. A1="Location 1", B1="Location 2", A2="Joe"...

Now as I type names under Location 1, is there a formula to count how many people have the certification identified by the boolean value in the previous worksheet, column B?  Sort of like "count the names if they have the certification"

I understand COUNTIF (I think at least) but I don't know how to apply it to a range, checking if each cell value is contained in Column A of the first spreadsheet, and then checking if Column B contains "Y" and then counting them.
I hope this makes sense, any help would be appreciated!

Solution:

Have a look at the following screenshot:

Sheet1:

Sheet2:

I have the following formula in Cell B2:
=arrayformula(if(A2:A="";"";countif(if('Sheet1'!B2:B="Y";'Sheet1'!A2:A;"");A2:A)))

Also have a look at the following alternate way of getting the solution:

Sheet3:

I have the following formula in Cell A2:
=query('Sheet1'!A:B;"select A,count(B) where B='Y' group by A label count(B) '' ")

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