EasyLanguage to NinjaScript

[RobinT]

Thanks for NT8 chartcontrol guide. How would one display a particular position on the chart?

[NinjaTrader_PatrickH]

Thanks for NT8 chartcontrol guide. How would one display a particular position on the chart?

Can you expand on this a bit more? Is it a specific position?

[RobinT]

The NTExternal interface for tradestation does not work for indices and I have found the problem and done a quick fix.

The external interface does symbol mapping and that is the problem.

For futures, the mapping almost works and @ES in TS gets mapped ok to ES 06 - 16 and ES 03 - 16 ok. However, ES ## - ## does not receive data.

Stocks, mapping does not work but most stocks have the same name so it has not been noticed. MSFT is the same with most systems but if you put in a name in mapping of say MSFTA it would not be mapped.

This is the problem with indices, mapping does not work. so $SPX.X. does not get mapped to ^SP500. However, if you make a new TSstrategy for SPX and change the symbol name before calling NTDirect.dll to ^SP500 it all works and the data comes through.

[RobinT]

no one interested then. I thought this was quite important.

[RobinT]

In the how bars are built section it talks about timestamped data. I feed NT fromTradestation and near the end of a bar there can be discrepancies. The way round it would be to send a timestamp. I cant see a way off getting timestamped data in to TS except through the market replay connection. I that how to do it?

[NinjaTrader_PatrickH]

In the how bars are built section it talks about timestamped data. I feed NT fromTradestation and near the end of a bar there can be discrepancies. The way round it would be to send a timestamp. I cant see a way off getting timestamped data in to TS except through the market replay connection. I that how to do it?

I do not follow. You should be able to import timestamped data in NinjaTrader from TradeStation. Please review our documentation on this at the following link: http://ninjatrader.com/support/helpG.../importing.htm

[RobinT]

Sorry I meant real time data. Historical, no problem.

[NinjaTrader_PatrickH]

Hello RobinT,

Thank you for clarifying.

There is a process for this, have you followed the instructions at the link below?

• http://ninjatrader.com/support/helpG...adestation.htm

This would be the only means to "import" real-time data.

[RobinT]

Yes, and TS data is not timestamped. I was just trying to deal with the tiny discrepancies that occur at the end of a bar due to different clocks.

[NinjaTrader_PatrickH]

Hello RobinT,

Are you stating the data when received by NinjaTrader from TradeStation is not timestamped?

[RobinT]

yes, I am using the

[DllImport("NTDirect.dll")]
public static extern int Last(string instrument, double price, int size);

interface, and time is not passed to NT through this interface from TS or any other source.

[RobinT]

Project has gone well and all working.

I am now trying to get data into the system automatically. As I cannot call the historical data manager, I am trying to create the .nta file myself. Is the format published?

[NinjaTrader_PatrickH]

Hello RobinT,

The NTM and NTD formats are not published.

[RobinT]

Do you know how to connect the external interface via program.
teardown disconnects
and connected shows the status.

Calling any function in the DLL will automatically initiate a connection to the server, but that doesn't seem to happen with Last.

[NinjaTrader_PatrickH]

Hello RobinT,

I am not sure I follow your inquiry. Are you connecting via the External Data Feed connection? - http://ninjatrader.com/support/helpG...connection.htm