MRO function

[pandyav]

I am trying to use MRO (Most recent occurrence) function for one of the indicators and for some reason do not get any value back.

The code looks like below under OnBarUpdate() method. The indicator is to trade ES and I am trying to chart to the value of 'risk1' as defined in the formula below. But for some reason when I chart this indicator, I get no values.

I have 'risk' and 'risk1' defined as DataSeries and also added in Initialize area.

{
if ((SMA(34)[0] > DEMA(500)[0]))
{
risk.Set(High[0] - (DEMA(500)[0] - 8 * TickSize));
}

int barsAgo = MRO(delegate {return (CrossAbove(SMA(34),DEMA(500),0));}, 1, 500);
if (barsAgo > -1)
risk1.Set(risk[barsAgo]);
Value.Set(risk1[0]);
}

I am not sure why the code is not working. I do not get any error while compiling either.

Can someone help please? I appreciate any assistance or direction you can provide.

[NinjaTrader_Matthew]

Hello,

Are you receiving any errors on the Log tab of the Control Center? If so what do these errors report?

[pandyav]

It reads:
Error on calling 'OnBarUpdate' method for indicator 'MyCustomIndicator' on bar 1: 'MRO' on bar 0 threw exception: You are accessing an index with a value that is invalid since its out of range. I.E. accessing a series [barsAgo] with a value of 5 when there are only 4 bars on the chart.
I am not sure what could be solution here?

[NinjaTrader_Brett]

Hello,

Thanks for letting us know.

Please add the following code to your script to resolve this.

http://www.ninjatrader.com/support/forum/showthread.php?t=3170

Let me know if I can be of further assistance.

[pandyav]

So added the following statement to the script and still get the same error message without any result. At this poing I am wondering I am adding it in the right part of the script.

if (CurrentBar < 1)
return;

{
if ((SMA(34)[0] > DEMA(500)[0]))
{
risk.Set(High[0] - (DEMA(500)[0] - 8 * TickSize));
}

int barsAgo = MRO(delegate {return (CrossAbove(SMA(34),DEMA(500),0));}, 1, 500);
if (barsAgo > -1)
risk1.Set(risk[barsAgo]);
Value.Set(risk1[0]);
}

Once again very much appreciate your help here.

[NinjaTrader_RyanM1]

Hello pandyav,

Your MRO lookback is 500, as well as calculations used in indicators. You will need a large ramp up time for this script, so may want to work something like this into your script:

if (CurrentBar < 500) return;

You should also make sure that MaximumBarsLookBack setting is set to Infinite. This can be set in code or when you apply the script to a chart.