Guppy said:
I am unable to get this exspression to work.
It's always best to quote the formula you have tried!
It appears
to me that the abs function will only operate for one
value, I need it to apply to a range of values.
I take it you are trying to do something such as
=SUM(ABS(A1:A5))/5
This is an array-formula, so has to be entered using CTRL+SHIFT+ENTER rather
than just ENTER.
Excel will automatically enclose the formula (as displayed in the formula
bar) in parentheses { ) to show that it is array-entered. (You cannot just
type in these yourself.)
This applies to (almost) any function (not just ABS) that passes an array of
values (rather than a single value) to another function.