I can't come up with anything that ignores errors. I think this is a job for
Harlan!

If this can be done it's going to be a really expensive formula. You may be
better off using the helper row.

Biff

"Jerry W. Lewis" wrote in message
...
One more level of complexity: I need to ignore error values (#N/A's for
charting purposes) if present. The usual array approach of
IF(ISNUMBER(range),range) cannot be used with OFFSET.

Jerry

"T. Valko" wrote:

Hmmm.....

I wasn't sure what you meant but after seeing bj's replies..........

Range = A1:D5

Array entered:

=MAX(SUBTOTAL(4,OFFSET(A1:A5,,COLUMN(A1:D5)-1))-SUBTOTAL(5,OFFSET(A1:A5,,COLUMN(A1:D5)-1)))

Biff

"Jerry W. Lewis" wrote in message
...
I have an nxm rectangular range of cells, for which I want to determine
the
largest columnwise data span ("range" in statistical terms). Clearly,
I
can
do this using a row of m helper cells each containing
=MAX(column)-MIN(column)
with the desired result then given as =MAX(helper_row).

Can this be done in a single cell without the helper row?

Jerry