Simple historical vs real time code help

[Sparkyboy]

Hi,

Very simple question. Why does this work fine on historical bars and live bars when using onbarclose, but when I set to onpricechange, no live bars are painted? It's obviously something to do with the last line but I can't figure out how I should amend for realtime. Thanks.


if (CurrentBar < 20)
return;

double smoothingFactor = 2.0 / (period + 1);
double currentEMA = (Input[0] - previousEMA) * smoothingFactor + previousEMA;


if (currentEMA > previousEMA)

{
BarBrush = Brushes.Lime;
}


else if (currentEMA < previousEMA)

{
BarBrush = Brushes.Red;
}

else

{
BarBrush = Brushes.Transparent;
}


previousEMA = currentEMA;

[NinjaTrader_Jesse]

Hello Sparkyboy,

There is nothing that is very obvious with the code provided, you will likely need to use a Print here to see what values are being saved to the currentEMA and previousEMA in that use case.

https://support.ninjatrader.com/s/article/Developer-Guide-Debugging-using-Print-and-TraceOrders?language=en_US