T - output for calculation by shiftU - output for calculation by candle or time intervalpublic interface IIndicatorCalculator<T,U>
| Modifier and Type | Method and Description |
|---|---|
T |
calculate(int shift)
The second indicator calculation step on feed for a single feed element by shift
|
U |
calculate(int candlesBefore,
long time,
int candlesAfter)
The second indicator calculation step on feed for the given feed element interval
|
U |
calculate(long from,
long to)
The second indicator calculation step on feed for the given time interval
|
T calculate(int shift) throws JFException
public void onFeedData(IFeedDescriptor feedDescriptor, ITimedData feedData) {
try{
double[] macd = indicators.macd(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 12, 26, 9).calculate(1);
double sma = indicators.sma(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 30).calculate(1);
console.getOut().format("macdShift: MACD=%.5f MACD Signal=%.5f MACD Hist=%.5f \n smaShift=%.5f\n ",
macd[0], macd[1], macd[2], sma
).println();
} catch (JFException e){
console.getErr().println(e);
}
}
shift - number of candles back in time staring from current bar. 0 - current bar (currently generated from ticks), 1 - previous
bar (last formed bar), 2 - current bar minus 2 bars and so onJFExceptionU calculate(long from, long to) throws JFException
public void onFeedData(IFeedDescriptor feedDescriptor, ITimedData feedData) {
try{
long from = history.getFeedData(feedDescriptor, 2).getTime();
long to = feedData.getTime();
double[][] macdTimeInterval = indicators.macd(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 12, 26, 9).calculate(from, to);
double[] smaTimeInterval = indicators.sma(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 30).calculate(from, to);
console.getOut().format("macd: MACD=%s MACD Signal=%s MACD Hist=%s \n sma=%s\n ",
toString(macdTimeInterval[0]), toString(macdTimeInterval[1]), toString(macdTimeInterval[2]), toString(smaTimeInterval)
).println();
} catch (JFException e){
console.getErr().println(e);
}
}
from - start of the time interval for which bars or ticks should be loaded. The value must be equal to the exact starting time of
the bar for the specified period. Method IHistory.getBarStart(Period, long) returns the starting time of the bar
that includes the specified timeto - end time of the time interval for which bars or ticks should be loaded. This is the starting time of the last bar/tick
that should be loadedJFExceptionU calculate(int candlesBefore, long time, int candlesAfter) throws JFException
public void onFeedData(IFeedDescriptor feedDescriptor, ITimedData feedData) {
try{
double[][] macd = indicators.macd(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 12, 26, 9).calculate(2, feedData.getTime(), 0);
double[] sma = indicators.sma(feedDescriptor, AppliedPrice.CLOSE, OfferSide.BID, 30).calculate(2, feedData.getTime(), 0);
console.getOut().format("macd: MACD=%s MACD Signal=%s MACD Hist=%s \n sma=%s\n ",
toString(macd[0]), toString(macd[1]), toString(macd[2]), toString(sma)
).println();
} catch (JFException e){
console.getErr().println(e);
}
}
candlesBefore - how much candles to load before and including the candle with time specified in the time parametertime - time of the last candle in the period specified with the numberOfCandlesBefore parameter or/and time of the
candle prior to the first candle in the period specified with the numberOfCandlesAfter parametercandlesAfter - how much candles to load after (and not including) the candle with time specified in the time parameterJFExceptionCopyright © 2016. All rights reserved.