find max or min in excel, with conditions

In my spreadsheet I have a column with negative 开发者_C百科and positive values. I need to get the minimum among all positive values and the maximum among all negative ones. How can I do so?

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Use array formulas. In the following examples, the values you're checking are in A2:A10.

Maximum negative:

=MAX(IF(A2:A10<0,A2:A10))

Press Ctrl+Shift+Enter when entering the formula. Formula will then appear bracketed by {...}.

Minimum positive:

=MIN(IF(A2:A10>=0,A2:A10))

Also enter as an array formula by pressing Ctrl+Shift+Enter