Sumproduct Count Dates by Week Number- Indirect Sheet Name & Header

mdonovan890

New Member
Joined
Dec 22, 2016
Messages
24
I am working within Excel 2016 and I am currently using the following formula to count the number of dates equal to the week number. The formula uses indirect to obtain the sheet name in cell $J1 and counting the dates listed in column C.



The formula works well but I am wondering if there is a way to incorporate matching the header name?

Meaning, instead of counting the dates in column C, finding the column on the sheet that has “process date” in the header and then counting the dates.

Current Formula:

IF(J$1<>"",SUMPRODUCT(--(ISOWEEKNUM($C7)=ISOWEEKNUM(INDIRECT("'"&J$1&"'!$C$3:$C$8000"))),--(YEAR($C7)=YEAR(INDIRECT("'"&J$1&"'!$C$3:$C$8000")))),"")



My Attempt: K1 has the header name

=IF(J$1<>"",SUMPRODUCT(--(ISOWEEKNUM($C2)=ISOWEEKNUM(INDIRECT("'"&J$1&"'!$a$1:$z$8000"),MATCH(K1,INDIRECT("'"&$J$1&"'!$a$1:$z$1")),--(YEAR($C2)=YEAR(INDIRECT("'"&J$1&"'!$a$1:$z$8000")),MATCH(K1,INDIRECT("'"&$J$1&"'!$a$1:$z$1"),0),0))),"")
 

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Fluff

MrExcel MVP, Moderator
Joined
Jun 12, 2014
Messages
53,317
Office Version
  1. 365
Platform
  1. Windows
Maybe
Excel Formula:
=IF(J$1<>"",SUMPRODUCT(--(ISOWEEKNUM($C2)=ISOWEEKNUM(INDEX(INDIRECT("'"&J$1&"'!$a$1:$z$8000"),0,MATCH(K1,INDIRECT("'"&$J$1&"'!$a$1:$z$1"),0)))),--(YEAR($C2)=YEAR(INDEX(INDIRECT("'"&J$1&"'!$a$1:$z$8000"),0,MATCH(K1,INDIRECT("'"&$J$1&"'!$a$1:$z$1"),0))))),"")
 

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