Hi all,
I wanted to check if anyone had any experience using predictors for 1) «carry 
forward» of values from one period to the following, or 2) copying cohort data 
forward?

As far as I can tell from some limited testing, 1) should work as it is now by 
setting sequential sample count to 1 and annual sample count to 0. You could 
then for example copy ending balance for May 2017 to starting balance June 2017 
etc. (note: I don’t mean to start a discussion how to collect data on stock).

Moving forward cohorts would similarly work today, but only for 12 month 
cohorts as far as I can figure out. From what I understand, even 12-month 
cohorts are sometimes in reality reported after e.g. 14 months, and there are 
of course others (6 months, 24 months, 36 months). At least on the surface, it 
would seem adding support for specifying the sample period as X months back 
would be a relatively straightforward thing, and it would be very helpful for 
this purpose. I know people are using custom script for this type of thing 
today.

Regards
Olav






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