Rate of Change (ROC)

Description

The Rate of Change (ROC) indicator is a very simple yet effective momentum oscillator that measures the percent change in price from one period to the next. The ROC calculation compares the current price with the price n periods ago.

… Courtesy of StockCharts

Syntax

ROC(int period)

ROC(ISeries\<double\> input, int period)

Returns default value

ROC(int period)[int barsAgo]

ROC(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

Examples

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Prints the current value of a 20 period ROC using default price type
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double value = ROC(20)[0];
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Print("The current ROC value is " + value.ToString());
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// Prints the current value of a 20 period ROC using high price type
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double value = ROC(High, 20)[0];
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Print("The current ROC value is " + value.ToString());

Source Code

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