CrossAbove Function

[samish18]

How does the CrossAbove function work when the look back period is greater than 1? If its 2, does it execute if it crossed above 2 bars ago and is still above?

[NinjaTrader_Gaby]

Hello samish18,

Thank you for your post.

The look back period is the number of bars back to check for the cross above condition. So if the lookbackperiod is 2, it will check for if the condition happened within the last 2 bars. So if it crossed above 2 bars or 1 bar ago, it will evaluate as true.

// Go long if 10 EMA crosses above 20 EMA within the last bar
if (CrossAbove(EMA(10), EMA(20), 1))
EnterLong();

// Go long we have an up bar and the 10 EMA crosses above 20 EMA within the last 5 bars
if (Close[0] > Open[0] && CrossAbove(EMA(10), EMA(20), 5))
EnterLong();

https://ninjatrader.com/support/helpguides/nt8/crossabove.htm

Please let us know if you have any further questions.