从动态表计算平均VBA

Question

I ve a table on Excel with the week number and the weight (in Kg.)

Somebody can insert his weight every day during a week or just once or not at all. I can't manage that. Then my table can literally change. from zero to 7 even more lines a week (like the yellow side of the image).

What I wanna do is to calculate the weight average per week. and then I will have one line for each week, when i got at least one weight (sometimes I won't have any line). We can have week without any weight so then I don't want this line at all. We can also easily have a weight for the week 2 but between the weeks 5 and 6 in the yellow table. That would happen if someone insert his weight after others.

How can I say this two weeks are similar, so we calculate the average for this two weight ?

I hope it's enough clear with this picture

Answer 1

Use formula below in Column C to calculate average(assume Week in column A and Weight in column B)

=AVERAGEIF(A:A,A2,B:B)

Average Column Copy->PasteSpecial value only, then Remove Duplicates base on Week and the new Average Column