#N/A

[Paul]

=Max(A1:A20) returns #N/A when one or more of the cells in
the series contains #N/A.

Is there a way to cause the formula to overlook the #N/A
and return the maximum value? Or, is there another
function that would accomplish this?

 

[Bob Phillips]

Paul,

This is an array variation of the formula

=MAX(IF(NOT(ISNA(A1:A20)),A1:A20))

commit it with Ctrl-Shift-Enter

--

HTH

RP
(remove nothere from the email address if mailing direct)

 

[Paul]

works perfectly!!

where can i learn about writing array formulas - have no
clue about that realm of excel.

 

[Bob Phillips]

What I know about them I have picked up from within these NGs, but here are
some links that I found

http://office.microsoft.com/en-us/assistance/HA010872901033.aspx
Introducing array formulas in Excel

http://office.microsoft.com/en-us/assistance/HA010872911033.aspx
More arrays: Introducing array constants in Excel.

http://www.cpearson.com/excel/array.htm

http://www.ozgrid.com/Excel/arrays.htm

Should get you started.


--

HTH

RP
(remove nothere from the email address if mailing direct)

 

[Aladin Akyurek]

A bit shorter...

=MAX(IF(ISNUMBER(A1:A20),A1:A20))

which you need to confirm to control+shift+enter instead of just with enter.