Strategy doesn't execute

[morphtrade]

I have ninja trader strategy which works for backtest but when added to sim-trading doesn't place orders.
What I do is go to strategies tab, add new strategy, change paramters and start. But it doesn't place even if the conditions are met. Is there a step I am missing in order to deploy strategies?

[NinjaTrader_Jason]

Hello morphtrade,

Does the issue persist if you apply the strategy in a chart?

http://www.ninjatrader-support.com/HelpGuideV6/RunningANinjaScriptStrategyFromAChart.html

Could it be the strategy uses 'Calculate on bar close' set to True?

In addition, general debug information can be found at the following link.

http://www.ninjatrader-support2.com/vb/showthread.php?t=3418

[morphtrade]

it shows all the trades when I apply it to chart. yes calc on bar close is set to true.

[NinjaTrader_Jason]

Does it make a difference if you set it to False? When set to True, the strategy will trigger orders at the close of a price bar, while set to False it will submit orders intra-bar.

[morphtrade]

I can set it to false just for testing but in live if I calculate entry intrabar it might results into more trades and live results will deviate from testing.

[NinjaTrader_Jason]

Ok sounds good, you can find debug tips to debug your strategy at the link below as well.

http://www.ninjatrader-support2.com/vb/showthread.php?t=3418

[morphtrade]

it's this line here which never return true for realtime bars but does work for historical bars.

if (CrossAbove(EMA(smSeries, Period1), EMA(smSeries, Period2), 1))

[NinjaTrader_JoshP]

Suggest you actually print values of your indicator and debug it by hand.

[morphtrade]

so after debugging I found out that EMA(smSeries, Period1) and EMA(smSeries, Period2) gives different values when calculated on historical and realtime series. For realtime EMA's are much lower than what it should be. Is there a difference between how the EMA is calculated for historical bars than realtime? I changed tha Min bars to calculate to 100 but that didn't make any difference either.

Period1 is 2 and Period2 is 5.

[morphtrade]

I have copied the values from output window for hist and realtime EMA's

79.0258361854625
78.9966120618208
78.9588706872736
78.9436235624245
78.9665411874748
79.010180395825
79.0540601319417
79.0593533773139
26.353117792438 <<<<<<<<<<<realtime bar
8.78437259747933 <<<<<<<realtime bar

[NinjaTrader_JoshP]

No difference. You need to check your realtime values stored in smSeries.

[morphtrade]

I will debug that and find out. But I am trying to understand what's the difference between the way OnBarUpdate is executed for historical bars and realtime bars. This might help me in future as well.

[NinjaTrader_JoshP]

Difference depends on your CalculateOnBarClose setting. On Historical, all bars are processed once at the end with OHLC. In real-time, if the setting is set to false, bars are processed on every single incoming tick.

[morphtrade]

calculateonbarclose is set to true even then there is difference between realtime and historical values. I print the values in realtime and then I realod strategy and same bars when processed as historical print different values(correct one).

[NinjaTrader_JoshP]

Which is why you need to debug every aspect of your custom DataSeries as you set values to it in real-time.