The Max Interpolated algorithm works in a similar way to the Max algorithm, except that it includes two extra values in the resample interval - the interpolated values.
To calculate the interpolated value, Geo SCADA Expert compares the last raw historic value before the resample interval with the next raw historic value (which may or may not be in the sample). It then calculates the interpolated value, which corresponds to the point at the start of the sample where a line between the ‘last pre-sample’ value and the next value would meet (see Interpolated for more information).
Geo SCADA Expert compares the last raw historic value within the resample interval with the next raw historic value after the sample interval. It then calculates which of the interpolated values is the maximum interpolated value.
The results returned by the algorithm do not depend on the quality of the data. You can choose to filter the data on quality using the Qualities combo box in the Edit Source window (see Configure a Trace)
The max interpolated value is plotted on the trace with a timestamp that matches the start of the resample interval.
If there are no raw historic values in the resample interval, the Max Interpolated value is the calculated as the greater interpolated value at the start or end of the resample interval.
Further Information