Examples with Bar org.ta4j.core.Bar used on opensource projects

Example 71 with Bar

use of org.ta4j.core.Bar in project ta4j by ta4j.

the class ThreeWhiteSoldiersIndicator method isGrowing.

/**
 * @param index the current bar/candle index
 * @return true if the current bar/candle is growing, false otherwise
 */
private boolean isGrowing(int index) {
    Bar prevBar = series.getBar(index - 1);
    Bar currBar = series.getBar(index);
    final Decimal prevOpenPrice = prevBar.getOpenPrice();
    final Decimal prevClosePrice = prevBar.getClosePrice();
    final Decimal currOpenPrice = currBar.getOpenPrice();
    final Decimal currClosePrice = currBar.getClosePrice();
    // Opens within the body of the previous candle
    return currOpenPrice.isGreaterThan(prevOpenPrice) && currOpenPrice.isLessThan(prevClosePrice) && // Closes above the previous close price
    currClosePrice.isGreaterThan(prevClosePrice);
}

Example 72 with Bar

use of org.ta4j.core.Bar in project ta4j by ta4j.

the class UpperShadowIndicator method calculate.

@Override
protected Decimal calculate(int index) {
    Bar t = series.getBar(index);
    final Decimal openPrice = t.getOpenPrice();
    final Decimal closePrice = t.getClosePrice();
    if (closePrice.isGreaterThan(openPrice)) {
        // Bullish
        return t.getMaxPrice().minus(closePrice);
    } else {
        // Bearish
        return t.getMaxPrice().minus(openPrice);
    }
}

Example 73 with Bar

use of org.ta4j.core.Bar in project ta4j by ta4j.

the class DeMarkPivotPointIndicator method calcPivotPoint.

private Decimal calcPivotPoint(List<Integer> barsOfPreviousPeriod) {
    if (barsOfPreviousPeriod.isEmpty())
        return Decimal.NaN;
    Bar bar = getTimeSeries().getBar(barsOfPreviousPeriod.get(0));
    Decimal open = getTimeSeries().getBar(barsOfPreviousPeriod.get(barsOfPreviousPeriod.size() - 1)).getOpenPrice();
    Decimal close = bar.getClosePrice();
    Decimal high = bar.getMaxPrice();
    Decimal low = bar.getMinPrice();
    for (int i : barsOfPreviousPeriod) {
        high = (getTimeSeries().getBar(i).getMaxPrice()).max(high);
        low = (getTimeSeries().getBar(i).getMinPrice()).min(low);
    }
    Decimal x;
    if (close.isLessThan(open)) {
        x = high.plus(Decimal.TWO.multipliedBy(low)).plus(close);
    } else if (close.isGreaterThan(open)) {
        x = Decimal.TWO.multipliedBy(high).plus(low).plus(close);
    } else {
        x = high.plus(low).plus(Decimal.TWO.multipliedBy(close));
    }
    return x.dividedBy(Decimal.valueOf(4));
}

Example 74 with Bar

use of org.ta4j.core.Bar in project ta4j by ta4j.

the class DeMarkReversalIndicator method calculateSupport.

private Decimal calculateSupport(Decimal x, int index) {
    List<Integer> barsOfPreviousPeriod = pivotPointIndicator.getBarsOfPreviousPeriod(index);
    if (barsOfPreviousPeriod.isEmpty()) {
        return Decimal.NaN;
    }
    Bar bar = getTimeSeries().getBar(barsOfPreviousPeriod.get(0));
    Decimal high = bar.getMaxPrice();
    for (int i : barsOfPreviousPeriod) {
        high = getTimeSeries().getBar(i).getMaxPrice().max(high);
    }
    return x.dividedBy(Decimal.TWO).minus(high);
}

Example 75 with Bar

use of org.ta4j.core.Bar in project ta4j by ta4j.

the class BearishHaramiIndicator method calculate.

@Override
protected Boolean calculate(int index) {
    if (index < 1) {
        // Harami is a 2-candle pattern
        return false;
    }
    Bar prevBar = series.getBar(index - 1);
    Bar currBar = series.getBar(index);
    if (prevBar.isBullish() && currBar.isBearish()) {
        final Decimal prevOpenPrice = prevBar.getOpenPrice();
        final Decimal prevClosePrice = prevBar.getClosePrice();
        final Decimal currOpenPrice = currBar.getOpenPrice();
        final Decimal currClosePrice = currBar.getClosePrice();
        return currOpenPrice.isGreaterThan(prevOpenPrice) && currOpenPrice.isLessThan(prevClosePrice) && currClosePrice.isGreaterThan(prevOpenPrice) && currClosePrice.isLessThan(prevClosePrice);
    }
    return false;
}