First occurrence of a condition since another condition

[DJCockburn]

I would like to develop a strategy that requires a way to code for the first instance a particular condition is met since the last occurrence that another (different) condition was met e.g.:

If (condition 1) is true
and the occurrence of (condition 1) is the first since the last occurrence of (condition 2)
then do x

This would also mean that if condition 1 is met on a subsequent occasion then it would be ignored unless there is a new occurrence of condition 2.

I hope that is clear.

I have looked at MRO, LRO and Countlf() but can't figure out if any of these are suitable.

[sledge]

This psuedocode should work, I haven't tested it.

private int condition1_met = 0; 
private int condition2_met = 0; 


		protected override void OnStateChange()
		{
			if (State == State.Historical) 
				return; 
						
			if (State == State.SetDefaults)
			{  condition2_met = 0; condition2_met = 0; }

		protected override void OnBarUpdate()
		{
if ( condition1==TRUE
&& condition2_met == 1
&& condition1_met == 0 )
{

logic

condition1_met = 1;
condition2_met = 0;
}

if ( condition2 == TRUE 
&& condition1_met == 1
&& condition2_met == 0 )
{

logic

condition2_met = 1;
condition1_met = 0;

}

[NinjaTrader_PatrickH]

Hello DJ****burn,

Thank you for your post and welcome to the NinjaTrader Support Forum!

sledge provides an example that would essentially only allow for condition 1 to be true if condition two was true prior, and vice versa. This example was designed for NinjaTrader 8 but the same logic for the variables and the OnBarUpdate() would work in NinjaTrader 7.

Another example would be the following:

if(cond2)
{
cond1 = true;
cond2 = false;
}
if(cond1)
{
cond1 = false;
cond2 = true;
}

Where cond1 and cond2 are booleans you have defined.

[DJCockburn]

Thanks, Sledge and PatrickH.

I'm a complete amateur and your replies are a great help!