I would like to take the average using an array of every 7 days on a Sunday and place the output on the same row but corresponding column of that Sunday.
If a cell in B is left blank then it should not be considered for an average. Meaning if on all numbers were filled for 6 days and the 7th was blank then the average should be the sum of the 6 days divided by 6 days.
Without an arrayformula() i was using:
=if(weekday(A8, 1)=1, average(B2:B8),"")
Any help would greatly be appreciated!
For example A8 is a Sunday so C8 should show the average of the range B2:B8
