hello support,

i have some problem to use fractal on renko bar. i think i followed your wiki correctly ( https://www.dukascopy.com/wiki/#Indicato ... d_by_shift)

this is my code :

 Object[] fractal =  indicators.calculateIndicator(
                    feedDescriptor,
                    new OfferSide[]{OfferSide.BID},
                    "FRACTAL",
                    new AppliedPrice[]{AppliedPrice.CLOSE},
                    new Object[]{fractalPeriod},
                    1);
         double Up = (Double) fractal[0], Down = (Double) fractal[1];
      
   
            console.getOut().println("up" + Up + "down" + Down);

but the double Up and the double Down return NaN value.

where is my error please?

regards
eric

There is no error - when there is no Up or Down signal (what you can see on the chart), then the value is Double.NaN.

Also see the post here:
viewtopic.php?f=65&t=47360&p=64519