Bug report, Strategy IDataSeries changed by Indicator

[saltminer]

Hi Ninja,
re the NT7 beta thread here http://www.ninjatrader.com/support/f...ight=saltminer
I can confirm the cause.

To summarise, Closes[0][0] in a strategy is returning Typicals[0][0].
After much testing, I traced it to an indicator the strategy was calling, in the form
value = MyIndicator(Closes[0], ....)[0];

The indicator had the following lines in the Initialise()
PriceTypeSupported = true;
PriceType = PriceType.Typical;

This corrupted the strategy somehow, changing the strategy's Closes forever after into Typicals.
This would not be intended NinjaTrader behaviour. It did not occur in Ninja 6.5 with identical code.

Cheers,
saltminer

[NinjaTrader_JoshP]

saltminer,

This was never a supported usage model. If you want to sync the indicator to a different Bars object you need to use BarsArray[].

For example:
someValue = MyIndicator(BarsArray[1], 20)[0];

Please see attached reference if you wanted to be working with price type. The indicator itself is one of Typical. The print outs demonstrate how to get it on the High prices instead.

[saltminer]

Thanks

Thanks Josh.