indicator fails when strategy is applied

[MichaelBruce]

Hi,

I've written an indicator which uses heavy Matlab calculations per 50 ticks of data. Because the calculations are very time-intensive I use a .txt doc to temporarilystore the results so that I can calculate averages more efficiently.
The indicator works just fine, graphs are just as expected. But then when I apply a very simple teststrategy to the indicator (go long if MyIndicator >90 and go short if MyIndicator < 10) It immediately fails, no output of MyIndicator.
setup :
Kinetick > Ninjatrader > FXCM testaccount.

What could be the issue here?

Thanks

Michael

[NinjaTrader_JC]

Hello Michael,

Do you receive an error on screen? Are there errors on the Log tab of the Control Center? If so, what do these errors report?

If you use the Print() statement in your simple teststrategy is it failed before your indicator is called or after?
http://www.ninjatrader.com/support/f...ead.php?t=3418

[koganam]

Hi,

I've written an indicator which uses heavy Matlab calculations per 50 ticks of data. Because the calculations are very time-intensive I use a .txt doc to temporarilystore the results so that I can calculate averages more efficiently.
The indicator works just fine, graphs are just as expected. But then when I apply a very simple teststrategy to the indicator (go long if MyIndicator >90 and go short if MyIndicator < 10) It immediately fails, no output of MyIndicator.
setup :
Kinetick > Ninjatrader > FXCM testaccount.

What could be the issue here?

Thanks

Michael

What errors, if any, are in your log?

[MichaelBruce]

error log

I get :
Error on calling 'OnBarUpdate' method for indicator 'MyIndicator' on bar 21: The object reference is not set to an instance of the object.

[MichaelBruce]

The strange thing is that this error suddenly appeared, the code is untouched for more then one week. After many attempts it sometimes works....
Very strange. I've been working many hours a day with ninjatrader since July and this is the weirdest thing that has occurred so far...

[NinjaTrader_JC]

Hello Michael,

This error generally means that the NinjaScript item is accessing/calling an object that does not exist yet. You may view the following link that will go over how to make sure you have enough bars in a data series you are accessing.

http://www.ninjatrader.com/support/f...ead.php?t=3170