You can use the following array formula. It assume that your values
are in the range A1:A5. Change this to your actual range.
=MIN(IF(A1:A5>0,A1:A5,MAX(0,MAX(A1:A5))))
Since this is an Array Formula, you *must* press CTRL SHIFT ENTER
rather than just ENTER when you first enter the formula
and whenever you edit it later. If you do this properly,
Excel will display the formula in the Formula Bar enclosed
in curly braces { }. (You do not type the curly braces -
Excel includes them automatically.) The formula will
not work properly if you do not use CTRL SHIFT ENTER. See
http://www.cpearson.com/excel/ArrayFormulas.aspx for lots
more information about array formulas.
If the values in A1:A5 are any of (1) all empty, (2) all non-numeric,
or (3) all negative, the formula returns 0.
Cordially,
Chip Pearson
Microsoft Most Valuable Professional
Excel Product Group, 1998 - 2009
Pearson Software Consulting, LLC
www.cpearson.com
(email on web site)