Hi all,

I want to plot the averages from a large dataset. I want to obtain the
average of a group of values grouped in 5 rows at the time, but when I
copy it down, it skips the data one row down, instead of five. For
instance I use
=Average(A1:A5), and when I copy it down I want it to calculate
=Average(A6:A10), but instead it shows =Average(A2:A6). Does anybody
know how to do this?

My data looks like this (without the spaces between the lines):

Day Value
14 0.04
14 0.04
14 0.79
14 0.27
14 0.05

21 0.35
21 0.42
21 15.18
21 15.77
21 12.23

28 25.0
28 11.6
28 89.0
28 36.7
28 60.2

I need the average of the five values of day 14, 21, and 28

Thank you.
Gerardo