Dear Dukascopy,

I've just tried to implement some Keltner magic, but I don't understand
clearly the API solution.
There is a Keltner method, which returns a double, I guess that's the
blue line.
There's an other, to which a "from" and a "to" argument should be given,
but I don't know what are they...

I would need a solution, in which I only need to give a shift argument,
and then get the 3 lines - top, mid, bottom - returned in an array.
What "from" and "to" args should I need to get actual Keltner Channel?

Sincerely,
Csaba Kincses

Hello,
thanks for your attentions. This is our bug, we will fix it ASAP.
Meanwhile, you could use method calculateIndicator

Object[] objects = indicators.calculateIndicator(instrument, period, new OfferSide[]{OfferSide.BID}, "KELTNER", new AppliedPrice[]{AppliedPrice.CLOSE}, new Object[] {10}, 1);
         
         for (Object o : objects)
            System.out.print((Double)o+", ");
         System.out.println();

Also you could find some usefull information here:

• https://www.dukascopy.com/swiss/english/forex/jforex/tutorial/indicator_interfaces/
• https://www.dukascopy.com/swiss/english/forex/jforex/tutorial/interfaces/