Try these. Both are array formulas and need to be entered using the key
combination of CTRL,SHIFT,ENTER (not just ENTER):

E1 = ID1220

For the MIN:

=MIN(IF(A1:A6=E1,B1:B6))

For the MAX:

=MAX(IF(A1:A6=E1,B1:B6))

Biff

"Robert Dieckmann" wrote in message
...
I am trying to select the maximum and minimum values in an Excel 2000
spreadsheet. The guiding criteria is in column A and the selection values
are in column B. For example (ColumnA - ColumnB)

ID1220 - 5
ID1220 - 10
ID1624 - 8
ID1220 - 5
ID1624 - 16
ID1220 - 11

The output I would like is the minimum & maximum values for the ID1220
(which in this case are & 11) and the minimum & maximum values for the
ID1624 (8 & 16). Values in columns A & B will not be in any type of
sorted arrangement. I suspect I have to do an array, but am not quite
sure how to go about it.
Robert