spreadsheet formula

[Guest]

Good morning,
i have a manager who wants to average a set of cells.
he there are indefinate number of cells in a row and he wants to average
only the current entry plus only the last three consecitive entries.
example:
if a1,b1,c1,d1,f1 all have entries he wants the average based on the info in
b1,c1,d1,f1.
when e1 has data entered he wants the average to be based on c1,d1,f1,e1.
there are 20+ rows that need to have this function.
can someone help, this is beyond my capabilities.
thanks
doug

 

[Bob Phillips]

Doug,

This will total it for row 1

=SUM(N(OFFSET(A1,,LARGE((1:1<>"")*(COLUMN(INDIRECT("A:IV"))),{1,2,3,4})-1,1,
1)))

it is an array formula, so commit with Ctrl-Shift-Enter, not just Enter.

--
HTH

Bob Phillips

(remove nothere from email address if mailing direct)

 

[Guest]

Thanks Bob,
i must be doing something wrong though. it works on a blank worksheet but
when i put it into e8 to calulate starting at F8 + it gives me a #N/A error.
i changed the formula to look as follow
=SUM(N(OFFSET(F8,,LARGE((1:1<>"")*(COLUMN(INDIRECT("F:IV"))),{1,2,3,4})-1,1,1))) the formula is in cell E8
thanks
doug

 

[daddylonglegs]

Try changing to

=AVERAGE(N(OFFSET(A8,,LARGE((F8:IV8<>"")*(COLUMN(INDIRECT("F:IV"))),{1,2,3,4})-1,1,1)))

 

[Guest]

Thanks, that did the trick