Update Aug 27 2010: The line style and width settings is supported
SMMA - Smoothed Moving Average (SMMA)
Parameters:
n - number of periods for smoothing.
Formula:
SMMA(first) := SUM(source, for the last n) / n
SMMA(i) := (SMMA(i - 1) * N - SMMA(i - 1) + source(i)) / n
SMMA vs MVA on the chart:
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The indicator was revised and updated