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kmstephenson
Creator
Creator

YTD set analysis calculation

Hi All,

I'm trying to calculate months of coverage (for YTD calculation - needed both for most recent time period selected and for trending).

I have data structure:

RYDate                    EnrollStartDate     EnrollEndDate          Member          CovType

2018-01-31               2018-01-01         2018-01-31                1                         A

2018-02-28               2018-02-01         2018-02-28                1                         A

2018-03-31               2018-03-01         2018-03-31                1                         A

2018-04-31               2018-04-01         2018-04-31                1                         B

2018-05-31               2018-05-01         2018-05-31                1                         B

2018-01-31               2018-01-01         2018-01-31                2                         C

2018-02-28               2018-02-01         2018-02-28                2                         C

2018-03-31               2018-03-01         2018-03-31                2                         C

2018-04-31               2018-04-01         2018-04-31                2                         C

2018-05-31               2018-05-01         2018-05-31                2                         C

I want to be able to count YTD coverage months I.e. If I have RYDate="2018-03-31" selected, I would count 3 months (coverage A) for Member 1, and 3 months (coverage C) for Member 2.  Given more than one RYDate can be selected at once for trending, I need this to work for multiple date selections. I.e. if RYDate has the following values selected: "2018-01-31", "2018-02-28", "2018-03-31" - then I would need to count 1 month of coverage for Member 1 for RYDate=2018-01-31, 2 months of coverage for Member 1 for RYDate=2018-02-28, etc. How can this be calculated? Is AGGR necessary?

Thanks!

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