RangeIndicator

Sometimes abbreviated as RI.
Was developed by Jack Weinberg.
Is a statistical indicator.
Is computed using high, low, and close prices.
Returns one time series, a 10-period exponential moving average of the percentage of the true range in the overall range over 10 periods.
FinancialIndicator["RangeIndicator", n1, n2] uses periods and an -period moving average.
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