COUNT function using multiple expressions

[Daveconva]

Im trying to create a calculated measure where I want to produce a figure that is the COUNT of Column 1 where it = "Jan-16" and Column 2 = BLANK? Thank you.

 

[Daveconva]

Thank you so much for your help with this DAX problem. So the second option you gave me work fine "trial count 2:=CALCULATE(COUNTA('ws pds'[Month Tagged]),'ws pds'[Month Tagged] = "January 2016")". As we now have three working lines of code are we able to place them all together to tie back into my original request and see if we can get that working? Really Really appreciate your help

 

[akice]

Try this as a final result:

[COLOR=#333333]trial count 2:=CALCULATE(COUNTA('ws pds'[Month Tagged]),FILTER(ALL( [/COLOR][COLOR=#333333]'ws ads' ),[/COLOR][COLOR=#333333]'ws pds'[Month Tagged] = "January 2016" && [/COLOR][COLOR=#333333]ISBLANK( 'ws pds'[CC Month Replaced])[/COLOR][COLOR=#333333]) )[/COLOR]