Dear Support,

After reading a lot on the Dukascopy wiki page I decided to try and make my own strategy with Eclipse.
I used the 'Simple Strategy' as an example https://www.dukascopy.com/wiki/#Simple_Strategy
It is far from finished but would you be so kind to look at the strategy and tell me what is incorrect or even better fix the problem? I get a error on line 73. I've tried everything to fix it. More info on the strategy can be found in the code.

Kind regards,

Martin

Change the method to:

   private IOrder submitOrder(double amount, OrderCommand orderCmd, double takeProfitPips) throws JFException {
      double stopLossPrice = 0, takeProfitPrice = 0;
      // Calculating stop loss and take profit prices
      if (orderCmd == OrderCommand.BUY) {
         stopLossPrice = history.getLastTick(this.instrument).getAsk() - this.stopLossPips * this.instrument.getPipValue();
         takeProfitPrice = history.getLastTick(this.instrument).getAsk() + takeProfitPips * this.instrument.getPipValue();
      }
      if (orderCmd == OrderCommand.SELL) {
         stopLossPrice = history.getLastTick(this.instrument).getBid() + this.stopLossPips * this.instrument.getPipValue();
         takeProfitPrice = history.getLastTick(this.instrument).getBid() - takeProfitPips * this.instrument.getPipValue();
      }

      // Submitting the order for the specified instrument at the
      // current market price
      return this.engine.submitOrder(getLabel(orderCmd), this.instrument, orderCmd, amount, 0, 0, stopLossPrice, takeProfitPrice);
   }

In order to avoid such compilation time errors and more convenient coding, consider using some IDE, for example Eclipse:
https://www.eclipse.org/downloads/packag ... /indigosr1
And then import the Standalone JForex-API project:
https://www.dukascopy.com/wiki/#Use_in_Eclipse

Dear Support,

Thank you for your quick reply.

Would you be so kind to take a look at the following strategy that I'm trying to make?
I got the indicator the way I want it. It is your (dukascopy) indicator with a small change.

I tried to register the indicator to a strategy, following the instructions at https://www.dukascopy.com/wiki/#Use_custom_indicator_in_strategies .

What I want the strategy to do is simple. If getBid > pR1 (see indicator) it should make a BUY order. If getAsk < pS1 (see indicator) it should make a Sell order.
It should be easy, but I don't understand how I can get the strategy to use the variable from the indicator to open an order.

I would really appreciate your help.

Kind regards,

Martin

Your indicator has 3 outputs, just as the custom indicator in the second example:
https://www.dukascopy.com/wiki/#Use_cust ... t_on_chart
Please try the example and then change:

1. Indicator filepath indicatorJfxFile.
2. Indicator name indicatorName .
3. Your indicator has two optional outputs "Period" and "Show historical levels". You have to make a variable for each of them and replace with those the variables which stand for the previous indicators optional inputs (the ones preceded by "//optional inputs according to optInputParameterInfos of the indicator").
4. Put the two new optional inputs in array optionalInputArray.

To get the idea how to parse outputs and work with them, also see the third example:
https://www.dukascopy.com/wiki/#Use_cust ... namicIndex
And also universal method examples in:
https://www.dukascopy.com/wiki/#Indicato ... price_feed

Thanks again for the quick reply.
Would you please be so kind to take a look at the attached strategy. It compiles good but when I try to run it I get an error one line 101 from the strategy.
Would you be able to make this strategy work or explain what I did wrong please?

First try approach without any style settings:

chart.addIndicator(myIndicator, optionalInputArray)

Also have a look at the following line:

        double[] PS1 = (double []) resultArr[3];

Presumably the index should be 2.

Thank you, but it still gives the same error:

Make sure that you have the chart opened and that the indicator is actually loaded by performing null-checks, for instance:

if(myIndicator == null){
   console.getErr().println("Indicator " +indicatorName+ " not found!");
   context.stop();
}
      
if(chart == null){
   console.getErr().println("Chart for " +instrument+ " not found! Please open the chart.");
   context.stop();
}

I tried everything but it always gives the same error.
I'm not sure if I followed your instructions right about making a variable for "Period" & "Show historical levels".

Could you please have a look at both the strategy and the indicator? I would really appreciate it.


Martin

indicator name should be "TPIVOT" not "MyIndicator". This already would have been indicated by the null checks, if they were put before the line where the NullPointerException occurs.