We would like a formula that would count a value once in range of date.
Date Value
01-01-07 3
01-01-07 3
01-01-07 4
01-02-07 1
01-02-07 4
01-02-07 1
01-03-07 3
01-03-07 1
The number is listed twice on 1-1-07; but we would like for it to be counted
a one occuring value for the day (not counting a repeated value). The total
value would be 2 from 01-01-07 to 01-03-07