I am new.

1. I finished a strategy and found suddenly that the value from indicator function,like MACD, MA, Alligator, is different than that shown on charts.

2. The points with indicator values by it on charts when pointed by mouse are not on the indicator lines accurately but near it.

3. Jforex data and candles are good. Some indicator, however, is different than some other famous, long history platforms. I was wondering which is correct.

Could someone help explain? Thx.

Please check that the following is true:
https://www.dukascopy.com/wiki/#Indicat ... _checklist

Thank for your reply.

1. The points with indicator values by it is on the the lines now. It is amazing you guys improved it so quickly.

2. I changed JForex preference>GMT, FlatsFilter, and offerside. I use OnTick method not OnBar method.
But nothing changes.

3. I downloaded a strategy made by DUKASCOPY: simpleEMA. I found that it also has the same problem as shown in attached picture with chart and code and running results.



Could you please do a test with it by yourself, and explain that for me?

BRDS!

EMA uses unstable period, so there could be a difference...
More on this here:
https://ta-lib.org/d_api/ta_setunstableperiod.html
https://www.dukascopy.com/swiss/english ... 84&p=79104

Mr. Support and tcsabina:

Could you just give me the functions and parameters of indicator MACD and ALLIGATOR. so I can get as accurate values as on charts.

Waiting for your reply.

Thanks!

Here is an example

    
public void onStart(IContext context) throws JFException {
        this.console = context.getConsole();
        this.history = context.getHistory();
        this.indicators = context.getIndicators();

        IChart chart = context.getChart(Instrument.EURUSD);
        IFeedDescriptor feedDescriptor = chart.getFeedDescriptor();
        IBar bar = history.getBar(feedDescriptor.getInstrument(), feedDescriptor.getPeriod(), feedDescriptor.getOfferSide(), 1);
        Object[] results = indicators.calculateIndicator(
                chart.getFeedDescriptor(),
                new OfferSide[]{OfferSide.BID},
                "EMA",
                new IIndicators.AppliedPrice[]{IIndicators.AppliedPrice.CLOSE},
                new Object[]{4},
                400, bar.getTime(), 0);
        double[] arr = (double[]) results[0];
        console.getOut().println(toStr(arr[399]));
    }

    public String toStr(double d) {
        return (new DecimalFormat("#.#######")).format(d);
    }

I cannot get the expected values all the same. I don't think they use the same Algorithm in indicators and api. Thanks a lot, any way.

Hi, Mr. Support:
I think I finally found the bug.
I get the last 100 four hours Close of EURJPY by entering the following codes:

double [] close = new double [100];
for (int i=100-1; i>=0; i--) {
close [i] = history.getBar(Instrument.EURJPY,Period.FOUR_HOURS,OfferSide.BID,i).getClose();
console.getOut().println(i + " " + close[i]);
}

See what I found:




The EURJPY four hours Close from Bar26 to Bar37 are all 127.376 and Close from Bar68 to Bar79 are all 130.981.
Is this a bug and does it make wrong indication function output?
Could you please have them all fixed?
Waiting for your reply.
Best Regards!