Summary - Only When ........

As long as your version allows it, you can set up a Running Total set to DistinctCount, and evaluate on {@NumberValue} <> 0.

Of course, this is only if NumberValue is the kind of formula which allows for summary activity.

Naith

Thanks for the advice Naith - its version 8 by the way. I will give that a try.

I will post back my outcome on Monday.

Thanks again Naith. Do you work for Crystal ? - don't answer that.

I tried the running total using DistinctCount. The summary worked but the criteria was not selecting properly. Maybe I was doing something wrong.

You triggered a thought and I have managed to get the results using an If statement on the group summary (week).

if (Minimum ({@NumberValue},{Week})=0) then
DistinctCount ({@NumberValue},{Week}) - 1
else
DistinctCount ({@NumberValue},{Week})

I have used the idea that if a record exists containing 0 then just take 1 of the total, therefore not including those records in the count.

Cheers.