I collect data every weekday, and I'm trying to find the average of each day but am encountering the Div/0 error because Excel only sees the date information and not the day formatting. (See attachment).
So, I want the average of Monday data, Tuesday data, etc. Is there a way to do this?
That's because there is no "Mon", etc., in the cells that are being referenced. The day name is showing because of the formatting, but it's not in the underlying cell's value, which is just a date.
Ali
Enthusiastic self-taught user of MS Excel who's always learning!
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Try this:
=AVERAGE(IF(WEEKDAY($B$2:$K$2,2)=1,$B$3:$K$3))
... confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer.
Here's an alternative:
=AVERAGE(IF(TEXT($B$2:$K$2,"ddd")="Mon",$B$3:$K$3)) Ctrl Shift Enter
Thanks to both of you! I went with AliGW's solution.
Glad to have helped!
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