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    How do Excel reports handle no datapoints

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    • P Offline
      psysak
      last edited by

      I'm generating some excel reports and I've run into an interesting predicament. Let's say a point doesn't change values for a week and subsequently nothing is logged in that week. If I run a report for that week on that point what should the output be?
      I tried to run the report with a rollup of first and got nothing out. I assume that is because the point did not have any datapoints in that time range but I would have kind of expected it to give me whatever the last value of that point was.

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      • CraigWebC Offline
        CraigWeb
        last edited by

        points get logged with a {"time":"value"}. So if there are no time stamps within the period then no log entries will get pulled to the report.

        I assume you are using 'on change' logging. You could change this to an interval and change. That way you will at least have regular log entries.

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        • phildunlapP Offline
          phildunlap
          last edited by

          Hi psysak,

          I tried to run the report with a rollup of first and got nothing out. I assume that is because the point did not have any datapoints in that time range but I would have kind of expected it to give me whatever the last value of that point was.

          Providing the value before the period or the first value in the period is the distinction between the Start and First rollups.

          https://help.infiniteautomation.com/mango-rollups-and-statistics/

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          • P Offline
            psysak
            last edited by

            @phildunlap said in How do Excel reports handle no datapoints:

            g the value

            Thanks guys, my curiosity has been satisfied.

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