Sampled Accumulator [SampAcc]

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The Sampled Accumulator function calculates the accumulated value of a field by sampling the value at a given period from the current value to the beginning of the data. Parameters ------------------ Data          The data to evaluate. This is typically a field in a data series or a calculated value. Period        The number of bars of data into the past to accumulate into the current value.                   For example, a period of 5 adds the value of the accumulator from five bars ago to the current value.                   Note: This can also be interpreted as the number of independent accumulators being maintained. Function Value ------------------------ This function takes the current value of a field and adds that value cumulatively to the value of that field a given number of bars ago. For example, with a period of 5, the current value is added to the value from 5 bars ago, 10 bars ago, 15 bars ago, and so on to the beginning of the data series. Usage ----------- The Sampled Accumulator is useful for analyzing cycles over a fixed period. For example, annual cycles could be analyzed using the Samped Accumulator of the direction of change in a field over a period of 253, which is the typical number of trading days in a year. By viewing a moving average of this value, it may often be found that certain months may trend upward while other months trend downward for a particular security. Note that the value of this function is cumulative in groups. The values in the first given period (values 1..n) contain one sample, the values in the second period (values n+1..2n) contain two samples. Therefore, the amplitude of the function may increase in steps. For an accumulator that is averaged across the samples, see Sampled Average. Source ------------ This indicator was developed by Gary Geniesse as part of TradingSolutions.