Hi ,

I want to calculate indicators every day, so I put the code in ONBAR method. trouble is that the code is ok when it was ran in ONSTART method, but when in ONBAR method it feed back out of memory.

double[][] frac = indicators.fractal(instrument, period, side, barsOnSides, Filter.WEEKENDS,weeklyPrev.getTime(), currBar.getTime());
console.getOut().println(String.format("start3 at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));
double[] zigzagArray = indicators.zigzag(instrument, period, side, extDepth, extDeviation, extBackstep,Filter.WEEKENDS, weeklyPrev.getTime(), currBar.getTime() );
console.getOut().println(String.format("start3 at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));

when it is in ONSTART it can print two start, but when it is in ONBAR it only print start2 then system halted. Is there any limit in ONBAR?

these two array's length is about 200+.

Thank you advance

Please provide a full example strategy which replicates the case. Please describe how you launch the strategy.

As following:

The onBar method executes only once per day. Please provide a precise launch case.

Yes, I want to calculate it once a day , and then use it's result in ontick method to open order. Is it workable?

The problem is that are there some memory limitation in onBar method. and how i fix it.

Please provide replication steps for getting the exception you reported.

when I delete two lines, it run normally.

package singlejartest;

import java.text.SimpleDateFormat;
import java.util.TimeZone;
import com.dukascopy.api.Filter;
import com.dukascopy.api.*;
import java.util.List;
import com.dukascopy.api.IEngine.OrderCommand;

public class FracZZV implements IStrategy {

IIndicators indicators;
IConsole console;
IHistory history;
IEngine engine;

@Configurable("")
public Instrument instrument = Instrument.EURUSD;
@Configurable("")
public Period period = Period.DAILY;
@Configurable("")
public OfferSide side = OfferSide.BID;
@Configurable("")
public int barsOnSides = 10;
@Configurable("")
public int LookbackWeek =50;
//@Configurable("")
public int extDepth = 12;
//@Configurable("")
public int extDeviation = 5;
//@Configurable("")
public int extBackstep = 3;


private static int MAX = 0;
private static int MIN = 1;

public double amount = 0.02;

SimpleDateFormat sdf = new SimpleDateFormat("dd/MM/yyy HH:mm:ss");



@Override
public void onStart(IContext context) throws JFException {
indicators = context.getIndicators();
console = context.getConsole();
history = context.getHistory();
engine = context.getEngine();


}

@Override
public void onBar(Instrument instrument, Period period, IBar askBar, IBar bidBar) throws JFException {
if(instrument != this.instrument || period != this.period){
return;
}

sdf.setTimeZone(TimeZone.getTimeZone("GMT"));
console.getOut().println(String.format("start at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));


IBar currBar = history.getBar(instrument, period, side, 1);
IBar prevBar = history.getBar(instrument, period, side, 1);
IBar prev2Bar = history.getBar(instrument, period, side, 2);
IBar prev3Bar = history.getBar(instrument, period, side, 3);
IBar weeklyCurr = history.getBar(Instrument.EURUSD, Period.WEEKLY, OfferSide.BID, 0);
IBar weeklyPrev = history.getBar(Instrument.EURUSD, Period.WEEKLY, OfferSide.BID, LookbackWeek);
console.getOut().println(String.format("start2 at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));

double[][] frac = indicators.fractal(instrument, period, side, barsOnSides, Filter.WEEKENDS,weeklyPrev.getTime(), currBar.getTime());
console.getOut().println(String.format("start3 at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));
// double[] zigzagArray = indicators.zigzag(instrument, period, side, extDepth, extDeviation, extBackstep,Filter.WEEKENDS, weeklyPrev.getTime(), currBar.getTime() );
// console.getOut().println(String.format("start3 at %s",sdf.format(history.getBar(instrument, period,side,0).getTime())));
}

@Override
public void onTick(Instrument instrument, ITick tick) throws JFException { }

@Override
public void onMessage(IMessage message) throws JFException {}

@Override
public void onAccount(IAccount account) throws JFException {}

@Override
public void onStop() throws JFException {
for (IOrder order : engine.getOrders()) {
engine.getOrder(order.getLabel()).close();
}
}
}

Please provide Historical Tester settings (in English) that you use.

what's matter? It run OK now when I add last two line. sorry for bothering.