"Inertia" (Financial Indicator)

Is a trend indicator.

Was developed by Donald Dorsey.

Is computed using the high and low prices.

Returns one time series, which is the 20-period linear regression indicator of 14-period relative volatility index.

FinancialIndicator["Inertia",n1,n2] uses an n1-period linear regression and an n2-period relative volatility index. The first value occurs after n2 periods.