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Scope: Core (OPC-10000-*) All specs

3 result(s) for StandardDeviationSample

OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.37 StandardDeviationSample

StandardDeviationSample The StandardDeviationSample Aggregate defined in Table 85 uses the formula: where X is each Good raw value in the interval, Avg(X) is the average of the Good ... sampled from the data source versus stored on an exception basis. Table 85 - StandardDeviationSample Aggregate summary StandardDeviationSample Aggregate Characteristics Type Calculated Data Type Double Use Bounds None Timestamp StartTime StatusCode
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.38 VarianceSample

retrieves the square of the standard deviation. Its behaviour is the same as the StandardDeviationSample Aggregate . Unless otherwise indicated, qualities are Good, Calculated . This calculation is for a sample population
OPC-10000-13 – OPC Unified Architecture - Part 13: Aggregates

5.4.3.39 StandardDeviationPopulation

full population where the calculation is done on the full set of data. Use StandardDeviationSample to calculate the standard deviation of a subset of the full population ( 5.4.3.37 ). An example