ROC Class

Namespace: OberMind.Indicators
Assembly: OberMind (in OberMind.dll)

Price Rate of Change (ROC)

[Serializable()] 
public class ROC : Indicator

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[Serializable()] 
public ref class ROC : public Indicator^

This language is not supported or no code example is available.

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public  
   Serializable() 
class ROC 
   extends Indicator

This language is not supported or no code example is available.

Constructors

	Name	Description
	ROC(ISeries, int, BarData)	ROC normal constructor.

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Properties

	Name	Description
	AutoUpdate	(inherited from Indicator).
	BarData	The bar data of ROC.
	Count	Gets the count. (inherited from Indicator).
	Description	Gets the description. (inherited from TimeSeries).
	Fields	(inherited from Indicator).
	First	Gets the first. (inherited from Indicator).
	FirstDateTime	Datetime of the first item in this time array (inherited from Indicator).
	Id	Gets the id. (inherited from TimeSeries).
	Indicators	Gets the indicators. (inherited from TimeSeries).
	IsMultiIndicator	(inherited from Indicator).
	IsUseBarSlice	(inherited from Indicator).
	Item(int, BarData)	Gets the Double at the specified index and bar data. (inherited from Indicator).
	Item(int)	Gets or sets the Double at the specified index. (inherited from Indicator).
	Last	Gets the last. (inherited from Indicator).
	LastDateTime	Datetime of the last item in this time array (inherited from Indicator).
	Length	The length of ROC.
	MaxLength	(inherited from TimeSeries).
	Name	Gets the name. (inherited from TimeSeries).

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Methods

	Name	Description
	Add(DateTime, double)	Adds the specified date time. (inherited from TimeSeries).
	Ago(int)	Agoes the specified n. (inherited from TimeSeries).
	Attach()	(inherited from Indicator).
	Calculate(int)	Calculate ROC at the specific index.
	Clear()	(inherited from Indicator).
	Clone(ISeries)
	Contains(DateTime)	Determines whether [contains] [the specified date time]. (inherited from TimeSeries).
	Crosses(TimeSeries, DateTime)	Crosseses the specified series. (inherited from TimeSeries).
	Crosses(double, int)	Crosseses the specified level. (inherited from TimeSeries).
	Detach()	(inherited from Indicator).
	Exp()	Exps this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
	GetAsymmetry(int, int, int)	Gets the asymmetry. (inherited from TimeSeries).
	GetAutoCorrelation(int)	Calculate autocorrelation (inherited from TimeSeries).
	GetAutoCovariance(int)	Calculate autocovariance (inherited from TimeSeries).
	GetByDateTime(DateTime, SearchOption)	Gets the by date time. (inherited from TimeSeries).
	GetByIndex(Instrument, int)	(inherited from Indicator).
	GetByIndex(int, int)	(inherited from Indicator).
	GetCorrelation(TimeSeries)	Gets the correlation. (inherited from TimeSeries).
	GetCorrelation(TimeSeries, int, int)	Gets the correlation. (inherited from TimeSeries).
	GetCorrelation(int, int, int, int)	Gets the correlation. (inherited from TimeSeries).
	GetCovariance(TimeSeries)	Gets the covariance. (inherited from TimeSeries).
	GetCovariance(TimeSeries, int, int)	Gets the covariance. (inherited from TimeSeries).
	GetCovariance(int, int, int, int)	Gets the covariance. (inherited from TimeSeries).
	GetDateTime(int)	Gets the date time. (inherited from Indicator).
	GetExcess(int, int, int)	Gets the excess. (inherited from TimeSeries).
	GetFirst(Instrument)	(inherited from Indicator).
	GetFirst(int)	(inherited from Indicator).
	GetIndex(DateTime, IndexOption)	Gets the index. (inherited from Indicator).
	GetIntersection(TimeSeries)	(inherited from TimeSeries).
	GetItem(int)	Gets the item. (inherited from TimeSeries).
	GetLast(Instrument)	(inherited from Indicator).
	GetLast(int)	(inherited from Indicator).
	GetMax(DateTime, DateTime)	Gets the maximum. (inherited from Indicator).
	GetMaxItem()	Gets the maximum item. (inherited from TimeSeries).
	GetMean()	Calculate mean (inherited from TimeSeries).
	GetMean(DateTime, DateTime, int)	Calculate mean (inherited from TimeSeries).
	GetMean(int, int, int)	Calculates mean (inherited from TimeSeries).
	GetMean(DateTime, DateTime)	Calculate mean (inherited from TimeSeries).
	GetMean(int, int)	Calculate mean (inherited from TimeSeries).
	GetMean(int)	Calculate mean (inherited from TimeSeries).
	GetMedian()	Calculates median (inherited from TimeSeries).
	GetMedian(DateTime, DateTime, int)	Calculate median (inherited from TimeSeries).
	GetMedian(int, int, int)	Calculates medain (inherited from TimeSeries).
	GetMedian(DateTime, DateTime)	Calculate median (inherited from TimeSeries).
	GetMedian(int, int)	Calculate median (inherited from TimeSeries).
	GetMedian(int)	Calculate median (inherited from TimeSeries).
	GetMin(DateTime, DateTime)	Gets the minimum. (inherited from Indicator).
	GetMinItem()	Gets the minimum item. (inherited from TimeSeries).
	GetMoment(int, int, int, int)	Gets the moment. (inherited from TimeSeries).
	GetNegativeSeries()	Returns new double series with negative data entries from this array (inherited from TimeSeries).
	GetNegativeStdDev()	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeStdDev(DateTime, DateTime)	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeStdDev(DateTime, DateTime, int)	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeStdDev(int, int)	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeStdDev(int, int, int)	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeStdDev(int)	Calculate standard deviation of negative data entries (inherited from TimeSeries).
	GetNegativeVariance(int, int, int)	Calculate variance of negative data entries (inherited from TimeSeries).
	GetNegativeVariance()	Calculate variance of negative data entries (inherited from TimeSeries).
	GetNegativeVariance(DateTime, DateTime)	Calculate variance of negative data entries (inherited from TimeSeries).
	GetNegativeVariance(DateTime, DateTime, int)	Gets the negative variance. (inherited from TimeSeries).
	GetNegativeVariance(int, int)	Calculate variance of negative data entries (inherited from TimeSeries).
	GetNegativeVariance(int)	Calculate variance of negative data entries (inherited from TimeSeries).
	GetPercentReturnSeries()	Gets the percent return series. (inherited from TimeSeries).
	GetPositiveSeries()	Returns new double series with positive data entries from this array (inherited from TimeSeries).
	GetPositiveStdDev()	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveStdDev(DateTime, DateTime)	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveStdDev(DateTime, DateTime, int)	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveStdDev(int, int)	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveStdDev(int, int, int)	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveStdDev(int)	Calculate standard deviation of positive data entries (inherited from TimeSeries).
	GetPositiveVariance(int, int, int)	Calculate variance of positive data entries (inherited from TimeSeries).
	GetPositiveVariance()	Calculate variance of positive data entries (inherited from TimeSeries).
	GetPositiveVariance(DateTime, DateTime)	Calculate variance of positive data entries (inherited from TimeSeries).
	GetPositiveVariance(DateTime, DateTime, int)	Gets the positive variance. (inherited from TimeSeries).
	GetPositiveVariance(int, int)	Calculate variance of positive data entries (inherited from TimeSeries).
	GetPositiveVariance(int)	Calculate variance of positive data entries (inherited from TimeSeries).
	GetReturnSeries()	Gets the return series. (inherited from TimeSeries).
	GetStdDev()	Calculate standard deviation (inherited from TimeSeries).
	GetStdDev(DateTime, DateTime)	Calculate standard deviation (inherited from TimeSeries).
	GetStdDev(DateTime, DateTime, int)	Calculate standard deviation (inherited from TimeSeries).
	GetStdDev(int, int)	Calculate standard deviation (inherited from TimeSeries).
	GetStdDev(int, int, int)	Calculate standard deviation (inherited from TimeSeries).
	GetStdDev(int)	Calculate standard deviation (inherited from TimeSeries).
	GetSum()	Calculate sum (inherited from TimeSeries).
	GetSum(int, int, int)	Calculate sum (inherited from TimeSeries).
	GetTimeSeriesItem(int)	(inherited from TimeSeries).
	GetValue(int)	Gets the value. (inherited from TimeSeries).
	GetVariance()	Calculate variance (inherited from TimeSeries).
	GetVariance(int, int, int)	Calculate variance (inherited from TimeSeries).
	GetVariance(DateTime, DateTime)	Calculate variance (inherited from TimeSeries).
	GetVariance(DateTime, DateTime, int)	Gets the variance. (inherited from TimeSeries).
	GetVariance(int, int)	Calculate variance (inherited from TimeSeries).
	GetVariance(int)	Calculate variance (inherited from TimeSeries).
	IndexOf(DateTime, SearchOption)	Indexes the of. (inherited from TimeSeries).
	Init()	Init ROC indicator.
	Log()	Logs this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
	Log10()	Log10s this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
	Pow(double)	Pows the specified pow. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
	Remove(int)	Removes the specified index. (inherited from TimeSeries).
	Shift(int)	Shifts the specified offset. (inherited from TimeSeries).
	Sqrt()	SQRTs this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
	Value(ISeries, int, int, BarData)	Calculate ROC for the specific instance of ISeries, index, length and bar data.

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Operators

	Name	Description
	Addition	Implements the +. (inherited from TimeSeries).
	Addition	Implements the +. (inherited from TimeSeries).
	Addition	Implements the +. (inherited from TimeSeries).
	Division	Implements the /. (inherited from TimeSeries).
	Division	Implements the /. (inherited from TimeSeries).
	Division	Implements the /. (inherited from TimeSeries).
	Multiply	Implements the *. (inherited from TimeSeries).
	Multiply	Implements the *. (inherited from TimeSeries).
	Multiply	Implements the *. (inherited from TimeSeries).
	Subtraction	Implements the -. (inherited from TimeSeries).
	Subtraction	Implements the -. (inherited from TimeSeries).
	Subtraction	Implements the -. (inherited from TimeSeries).

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Fields

	Name	Description
	barData
	calculate	(inherited from Indicator).
	description	(inherited from TimeSeries).
	input	(inherited from Indicator).
	length
	name	(inherited from TimeSeries).

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Remarks

This study monitors market momentum. It calculates the market's rate of change relative to previous trading intervals. At the peaks, the indicator suggests a market that is overbought. Valleys or troughs indicate an oversold market condition. When the indicator begins to move back toward the zero line, this may indicate that the current trend is losing momentum.

Some market technicians use a very simplified approach for the rate of change study. It issues buy and sell signals based upon the midpoint or zero line. You sell when the rate of change line crosses from above to below. You buy when the indicator crosses from below to above. This assumes that an oversold or overbought market condition precedes the crossover.

In most instances, it is best to use this indicator as a precursor to change in market direction. One approach is to establish extreme zones for the study, much like the RSI or Stochastic. Also, the indicator is similar to an oscillator with regard to the market accelerating or decelerating. However, a good technical analyst must learn to tolerate the study in extreme bull and bear markets. It can generate many false signals under those market conditions.

The ROC can be used as an excellent short-term to intermediate-term overbought/oversold indicator. Higher ROC values indicate an overbought contract. Lower ROC values indicate a possible rally. A word of caution must be issued when using overbought/oversold indicators: it is wise to wait for the market to correct before placing a trade. In spite of all expectations, markets that appear overbought may remain overbought for some time, and extreme overbought/oversold situations often suggest a continuation of the current trend.

This indicator is described in more details in the Steve Achelis' book "Technical Analysis from A to Z".

Formula:

Inheritance Hierarchy

OberMind.TimeSeries

OberMind.Indicator

OberMind.Indicators.ROC

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ROC Class

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