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Deriving High and Low Non-Zero Values

Summary: Excel provides handy functions that allow you to determine the high and low values in a range. You may want to limit what is returned to non-zero values, which involves the use of a slightly more complex formula, as described in this tip. (This tip works with Microsoft Excel 97, Excel 2000, Excel 2002, and Excel 2003.)

There may be times when you need to derive the smallest (or largest) value from a range, unless the smallest (or largest) value is zero. For instance, you might have a range of values such as {0, 3, 1, 4, 2}. In this case, the lowest value is zero, but the value you really want returned is 1.

There is no intrinsic function within Excel to return a value as stipulated here. However, you can create a formula that will do the trick. Assuming that the range of values you want to analyze are in C4:C8, the following formula will return the lowest non-zero value:

=IF(MIN(C4:C8)=0,SMALL(C4:C8,COUNTIF(C4:C8,"=0")+1),MIN(C4:C8))

This formula uses the MIN function to determine if the lowest value in the range is zero. If it is, then the SMALL function is used to derive the lowest value, excluding the zeros. (The COUNTIF function returns the number of zeros in the range, and therefore tells SMALL which item from the range to pick.)

A small change to the formula allows it to be used to return the largest non-zero number in a range:

=IF(MAX(C4:C8)=0,LARGE(C4:C8,COUNTIF(C4:C8,"=0")+1),MAX(C4:C8))

These formulas will work for any range, unless the range is made up entirely of zeros. In that instance, a #NUM! error is returned.

ExcelTips is your source for cost-effective Microsoft Excel training. This tip (2332) applies to Microsoft Excel versions: 97 | 2000 | 2002 | 2003

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