NinjaScript > Language Reference > Common > Analytical

Definition

Evaluates a cross below condition over the specified bar look-back period.

Note: This method does not return true if both series being compared have equal values on the current or previous bar with a lookbackPeriod of 1.

Method Return Value

This method returns true if a cross below condition occurred; otherwise, false.

Syntax

CrossBelow(ISeries<double> series1, ISeries<double> series2, int lookBackPeriod)
CrossBelow(ISeries<double> series1, double value, int lookBackPeriod)

Parameters

lookBackPeriod	Number of bars back to check the cross below condition
series1 & series2	Any Series<double> type object such as an indicator, Close, High, Low, etc...
value	Any double value

Examples


protected override void OnBarUpdate() { // Go long if CCI crossed below -250 within the last bar if (CrossBelow(CCI(14), -250, 1)) EnterLong(); // Go short if 10 EMA crosses below 20 EMA within the last bar if (CrossBelow(EMA(10), EMA(20), 1)) EnterShort(); // Go short we have a down bar and the 10 EMA crosses below 20 EMA within the last 5 bars if (Close[0] < Open[0] && CrossBelow(EMA(10), EMA(20), 5)) EnterShort(); }

protected override void OnBarUpdate()
{
// Go long if CCI crossed below -250 within the last bar
if (CrossBelow(CCI(14), -250, 1))
EnterLong();

// Go short if 10 EMA crosses below 20 EMA within the last bar
if (CrossBelow(EMA(10), EMA(20), 1))
EnterShort();

// Go short we have a down bar and the 10 EMA crosses below 20 EMA within the last 5 bars
if (Close[0] < Open[0] && CrossBelow(EMA(10), EMA(20), 5))
EnterShort();
}