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

Class ExponentialMovingAverage

java.lang.Object

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

trade.invision.indicators.indicators.CachingIndicator<Num>

trade.invision.indicators.indicators.RecursiveIndicator<Num>

trade.invision.indicators.indicators.ma.ema.ExponentialMovingAverage

public class ExponentialMovingAverage
extends RecursiveIndicator<Num>

ExponentialMovingAverage is a Num Indicator to provide an Exponential Moving Average (EMA) 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	ExponentialMovingAverage(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 ExponentialMovingAverage	ema(Indicator<Num> indicator, int length)
static ExponentialMovingAverage	ema(Indicator<Num> indicator, int length, Num smoothing)
static ExponentialMovingAverage	exponentialMovingAverage(Indicator<Num> indicator, int length)	Calls exponentialMovingAverage(Indicator, int, Num) with smoothing set to 2.
static ExponentialMovingAverage	exponentialMovingAverage(Indicator<Num> indicator, int length, Num smoothing)	Gets a ExponentialMovingAverage.

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

getValue

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

caching, getMinimumStableIndex, getSeries, 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

ExponentialMovingAverage

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

Method Details

ema

public static ExponentialMovingAverage ema(Indicator<Num> indicator,
 int length)

See Also:

• exponentialMovingAverage(Indicator, int)

exponentialMovingAverage

public static ExponentialMovingAverage exponentialMovingAverage(Indicator<Num> indicator,
 int length)

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

ema

public static ExponentialMovingAverage ema(Indicator<Num> indicator,
 int length,
 Num smoothing)

See Also:

• exponentialMovingAverage(Indicator, int, Num)

exponentialMovingAverage

public static ExponentialMovingAverage exponentialMovingAverage(Indicator<Num> indicator,
 int length,
 Num smoothing)

Gets a ExponentialMovingAverage.

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)