NinjaScript > Language Reference > Common > System Indicator Methods

Description

Developed by Donald Dorsey, the Relative Volatility Index is the RSI using the standard deviation over the indicator period in place of the daily price change. The RVI measures the direction of volatility on a scale from 0 to 100. Readings below 50 indicate that the direction of volatility is to the downside and that you should be looking to sell, readings above 50 indicate that the direction of volatilty is to the upside and that you should be looking to buy.

Syntax

RVI(int period)
RVI(ISeries<double> input, int period)

Returns default value
RVI(int period)[int barsAgo]
RVI(ISeries<double> input, int period)[int barsAgo]

Return Value

double; Accessing this method via an index value [int barsAgo] returns the indicator value of the referenced bar.

Parameters

input	Indicator source data (?)
period	Number of bars used in the calculation

Example


// OnBarUpdate method protected override void OnBarUpdate() { // Check for buy condition if (RVI(14)[0] > 50 && CrossAbove(SMA(9), SMA(14), 1)) { EnterLong(); } }

Source Code

You can view this indicator method source code by selecting the menu New > NinjaScript Editor > Indicators within the NinjaTrader Control Center window.