Package trade.invision.indicators.indicators.ma.ema

Class DoubleExponentialMovingAverage

java.lang.Object

trade.invision.indicators.indicators.Indicator<Num>

trade.invision.indicators.indicators.ma.ema.DoubleExponentialMovingAverage

public class DoubleExponentialMovingAverage
extends Indicator<Num>

DoubleExponentialMovingAverage is a Num Indicator to provide a Double Exponential Moving Average (DEMA) over a length of values.

See Also:

• Investopedia

Nested Class Summary

Nested classes/interfaces inherited from class trade.invision.indicators.indicators.Indicator

Indicator.CacheSeries

Field Summary

Fields inherited from class trade.invision.indicators.indicators.Indicator

cachedAddCallCount, cachedIndex, cachedValue, cacheSeries, minimumStableIndex, series

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DoubleExponentialMovingAverage(Indicator<Num> indicator, int length, Num smoothing)

Method Summary

Modifier and Type	Method	Description
protected Num	calculate(long index)	Performs the calculation of this Indicator at the given index.
static DoubleExponentialMovingAverage	dema(Indicator<Num> indicator, int length)
static DoubleExponentialMovingAverage	dema(Indicator<Num> indicator, int length, Num smoothing)
static DoubleExponentialMovingAverage	doubleExponentialMovingAverage(Indicator<Num> indicator, int length)	Calls doubleExponentialMovingAverage(Indicator, int, Num) with smoothing set to 2.
static DoubleExponentialMovingAverage	doubleExponentialMovingAverage(Indicator<Num> indicator, int length, Num smoothing)	Gets a DoubleExponentialMovingAverage.

Methods inherited from class trade.invision.indicators.indicators.Indicator

caching, getMinimumStableIndex, getSeries, getValue, isCaching, numOf, numOf, numOf, numOf, numOfEight, numOfFive, numOfFour, numOfHalf, numOfHundred, numOfHundredth, numOfNegativeOne, numOfNine, numOfOne, numOfSeven, numOfSix, numOfTen, numOfTenth, numOfThousand, numOfThousandth, numOfThree, numOfTwo, numOfZero, purgeCache

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

DoubleExponentialMovingAverage

protected DoubleExponentialMovingAverage(Indicator<Num> indicator,
 int length,
 Num smoothing)

Method Details

dema

public static DoubleExponentialMovingAverage dema(Indicator<Num> indicator,
 int length)

See Also:

• doubleExponentialMovingAverage(Indicator, int)

doubleExponentialMovingAverage

public static DoubleExponentialMovingAverage doubleExponentialMovingAverage(Indicator<Num> indicator,
 int length)

Calls doubleExponentialMovingAverage(Indicator, int, Num) with smoothing set to 2.

dema

public static DoubleExponentialMovingAverage dema(Indicator<Num> indicator,
 int length,
 Num smoothing)

See Also:

• doubleExponentialMovingAverage(Indicator, int, Num)

doubleExponentialMovingAverage

public static DoubleExponentialMovingAverage doubleExponentialMovingAverage(Indicator<Num> indicator,
 int length,
 Num smoothing)

Gets a DoubleExponentialMovingAverage.

Parameters:

indicator - the Indicator

length - the number of values to look back at

smoothing - the smoothing factor (typically 2)

calculate

protected Num calculate(long index)

Description copied from class: Indicator

Performs the calculation of this Indicator at the given index.

Specified by:

calculate in class Indicator<Num>

Parameters:

index - the index

Returns:

the result (never null)