Historical Intervals

Numerical calculations can be configured to display results from historical time intervals.

Calculations using historical intervals starts collecting data from the time such interval was configured.

  • Interval Type
    Specifies the type of interval displayed value should be from.

    • 15 Minutes
      8:00 - 8:15, 8:15 - 8:30, ….

    • 30 Minutes
      8:00 - 8:30, 8:30 - 9:00, …

    • Hour
      8:00 - 9:00, 9:00 - 10:00, …

    • Day
      today, yesterday, …

    • Week
      this week, previous week, …

    • Month
      this month, previous month, …

    • Year
      this year, previous year, …

  • Which Interval
    Lets an user choose from which interval, of selected type, data should be displayed. For each interval type current, previous or other interval can be chosen. If other option is chosen, how far into the past the displayed interval is has to be provided.

  • Value in Interval
    Defines, which value from the selected interval should be displayed.

    • First
      The first recorded result of the configured interval is displayed

    • Last
      The last recorded result of the configured interval is displayed.

    • Min
      The minimal recorded result of the configured interval is displayed.

    • Max
      The greatest recorded result of the configured interval is displayed.

    • Delta
      The difference between the Last result of the configured interval and the one before is displayed.

    • Week-to-date
      Available only when “Day” interval type is selected and when selected calculation function is cumulative.
      The sum of all last values of every day, since the start of the week (defined by selected interval) until selected interval.

      This option is experimental. In some cases it can produce unexpected values.

    • Month-to-date
      Available only when “Day” interval type is selected and when selected calculation function is cumulative.
      The sum of all last values of every day, since the start of the month (defined by selected interval) until selected interval.

      This option is experimental. In some cases it can produce unexpected values

    • Year-to-date
      Available only when “Day”, “Week” or “Month” interval type is selected and when selected calculation function is cumulative.
      The sum of all last values of every instance of the given interval, since the start of the year (defined by selected interval) until selected interval.

      This option is experimental. In some cases it can produce unexpected values

    • Total
      Available only when “Week”, “Month” or “Year” interval type is selected and when selected calculation function is cumulative.
      The sum of last values of every day in selected interval.

      This option is experimental. In some cases it can produce unexpected values