Have you tried either of the answers sent to you?

--
Bernard Liengme
www.stfx.ca/people/bliengme
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"keving" wrote in message
...
oh my! it seems complicated.
the table below shows what I need to do, assuming there is just one column
and I add to it each week.Thus, wk8 I average numbers from B5:B8
A B A B
1 wk1 2 wk1 2
2 wk2 3 wk2 3
3 wk3 4 wk3 4
4 wk4 3 wk4 3
5 wk5 2 wk5 2
6 wk6 1 wk6 1
7 wk7 4


AVERAGE(B3:B6) AVERAGE(B4:B7)


"Bernard Liengme" wrote:

I think it can be done more elegantly but this works
=AVERAGE(OFFSET(A1:A1,COUNT(A1:A5000)-6,0):OFFSET(A1:A1,COUNT(A1:A5000)-1,0))

I am assuming you will not go passed A5000

best wishes

--
Bernard Liengme
www.stfx.ca/people/bliengme
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"keving" wrote in message
...
I am sure there is a simple way!
each week I insert a number in a column, thus after 6 weeks I have
A1:A6
filled in. Each week I need to take the average of the last 4 numbers.
How
can I calculate this automatically without having to change the range
each
time?
from Kevin