Want to create a graph of the total number of people over time who have ever logged in on the specific software at any point in time - this would look like a slowly increasing function on the graph. So it's not a running total and I don't want a constant horizontal line.
Right now I have a not-aggregated calculated field called Have Ever Used:
if ([Is a Registered Client User this month] = 1 and
{ FIXED [User ID]: sum([Total Software Login Count this month]) > 0 } = true)
then 1 else 0 end
This of course delivers a constant horizontal line that doesn't change over time. However, I don't think INCLUDE or EXCLUDE would give me what I want either. I'm sure there's a solution somewhere that will make me facepalm, but it's evading my brain right now.