Is there a way to perform a countifs-like function in Beastmode?
Basically, I have a dataset that is appended with new data regularly. I am trying to see how many accounts are associated with date a that are no longer showing up in the most recent (date b) appended data. I can write a meastmode variable that can show what lines qualify as date data a and date data b, and I can figure out the nominal difference, but that difference is a function of two variables: new accounts and closed accounts). I need to separate out new from closed. A countif function would allow me to search a field, using criteria from other fields. Anything like that? Good workarounds?