Hi,

Below the code i'm trying to use in my strategy.
I'm looking to retrieve the K and D values of the stoch after bar0 has been detected as being a full bar.
The period and offerside settings have been checked and correct.

The values i print (whilst running in Eclipse) are not lined up with those on screen when running the tester.
The bar however does show the exact values. So at least something is going right ..

1. Could someone please let me know whether the code used below is correct and should supply the same results as on screen
2. What effect do the candlesBefore and after have on the selection. if after>1 then no data comes through at all!?

Tia,

Fermin DCG

private double calculateStoch(Instrument instrument, Period period, IBar bar0) throws JFException {
    int fastK = 26;//13
    int slowK = 9;//5
    int slowD =  9;//5
    MaType slowKMA =  MaType.TEMA;//MaType.SMA;//
    MaType slowDMA =  MaType.WMA;//MaType.SMA;//
    int candlesBefore = 3;
    int candlesAfter=0;
    int upperStochLimit=80;
    int lowerStochLimit=20;

    messageStoch=null;
    double stochX=0;
    int boundaryX = 0;
    
    if (period==Period.ONE_HOUR) {
      double[][] stoch = indicators.stoch(instrument, defaultPeriod, OfferSide.ASK, fastK, slowK, slowKMA, slowD, slowDMA, Filter.WEEKENDS, candlesBefore, bar0.getTime(), candlesAfter);

...

Hi,
When you are calculating an indicator, you need to check also for the correct instrument. Because methods onBar and onTick are called for each subscribed instrument.
Please, consider this https://www.dukascopy.com/swiss/english/forex/jforex/forum/viewtopic.php?f=5&t=2345

Hi support,
Thanks for reply but i'm currently only running against one pair (EURUSD) so this suggestion i'm assuming does not apply. Though i understand your point and the code does take that into consideration.

Since you did not supplu a comment on the code itself i surmise that this is correct?

Tia,

Fermin DCG

The error was not in the instrument but indeed the use of the candlesBefore and after.
As it tuns out they mean i had to do the following to get figures that look acceptable:
1. candlesBefore means candles before the bar being scrutinized, used fastK+1 for that
2. For the time i used the time of the latest completed bar as determined in the onBar() method
3. candlesAfter i set to 0 (anything over 1 throws an exception, which makes sense looking at bar0)

These settings get me pretty close to the screen numbers (within tolerance levels, i hope).

Cheers,

Fermin DCG