How can I write expression

[#1]

I try to write expression to create chart  that

measurement  is total member  and total new member .

Startdate can count total new member But total member for each how can i write expression

[Anonymous · Accepted solution]

You can do this by using the accumulation function for the same expression that counts the members.

Take a look at the attached file.

Good luck,

Dennis.

[#3]

Thank you