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Statistics challenge! Struggling with calculated fields on a report.

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    #1

    Statistics challenge! Struggling with calculated fields on a report.

    I'm not sure I know enough about calculated fields and associated functions to know how to achieve this or even to know if it's possible, so any kind of input would be fantastic help:

    I have a report which will generate statistics on records entered into the database within a range of weeks specified by the user.
    The fields that I'm struggling with at the moment grant awards for reaching certain milestones.

    e.g. For achieving more than 6 sales in each week for two consecutive weeks, an award is granted.
    In the weeks 1-4 of the new year, if the "Sales" field in the Activity table is 6 or more in weeks 1 and 2 then 1 award is granted. Also, if the "Sales" field for weeks 3 and 4 are 6 or above then a second award is granted. However, only 2 awards can be granted per 4 week range. In the above example, no award would be granted for having achieved 6 or more sales in the weeks 2 and 3.

    How would this be achievable?
    I started by using an odd mix of if() and dbsum() functions to work it out, but I've not come to a solution yet, and I've no idea how to exclude weeks that have already been considered for an award.

    Again, any input will help direct my train of thought. Thanks for reading!!
    Tags: None
    #2
    Re: Statistics challenge! Struggling with calculated fields on a report.

    Looking into the *sql_where() function to see if I can't use it for the field.
    Also thinking about calculative some values separately by defining them in subgroups, and then using those values. I can't predict how well that will work though.

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      #3
      Re: Statistics challenge! Struggling with calculated fields on a report.

      Still working on statistics.
      I'm wondering; is there a way to look at n number of values at return the highest of the group?

      I need to display a value for the highest number of appointments in a week. This value is calculated by adding together 3 other values for each day. Each record has a date associated with it.
      I just can't get my head around it! I've tried a couple of solutions, but none of them solved anything.

      reportcompare.jpg

      The sub-reports have their own filters, showing records from a range of weeks e.g. January shows records in week(Date) 1 through 4.
      Highlighted in red, Most appts booked in 1 week is the one causing the trouble.

      The only solution that I've tried that seemed viable so far involved a lot of sub-reports, and the report is already pretty sub-report heavy.
      Could Grouping by week(Date) help out in this case? So far I've found that I have the totals for Appts Booked, but then no way to compare them in a range to determine which is the highest. Also introducing new Groups messes with the statistics that are working already. Hmm hmm.

      Going to try working in some Groups to the existing sub-reports and derive the values that I need.

      Comment

        #4
        Re: Statistics challenge! Struggling with calculated fields on a report.

        So, if I do something like:

        weekMaxBooked = maximum(calc->apptBooked, grp->SubWeek, grp->Subreport:detail)

        ...SubWeek being a group inside the Subreport that breaks on week(Date). I'd have the booked values for each week, but then would need some way to compare them and get the maximum value.

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          #5
          Re: Statistics challenge! Struggling with calculated fields on a report.

          As usual, the solution was quite simple!
          Just typing it out on here helped organize my thoughts I think :P

          So I got the values in weekMaxBooked, specified in my last post, and then created another calculated value:

          mostBookedWeek = maximum(weekMaxBooked)

          Sorted.

          Comment

            #6
            Re: Statistics challenge! Struggling with calculated fields on a report.

            New problem:

            x = 1 if 3 consecutive records are above another comparable value.

            In context - if sales for months 1 + 2 + 3 are above the target values for months 1 + 2 + 3 then award = award + 1.

            I can think of a long winded way of doing it that would involve specifying a calculated field for each combination of 3, but that would just be bad and I think I can anticipate a couple issues that approach might have, beyond the obvious design ones.

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