RSI Class

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

Relative Strength Index (RSI).

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[Serializable()] 
public class RSI : Indicator

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

C++

JScript

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

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

C++

JScript

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public  
   Serializable() 
class RSI 
   extends Indicator

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

Constructors

	Name	Description
	RSI(ISeries, int, BarData, IndicatorStyle)	RSI normal constructor.

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Properties

	Name	Description
	AutoUpdate	(inherited from Indicator).
	BarData	The bar data of RSI.
	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 RSI.
	MaxLength	(inherited from TimeSeries).
	Name	Gets the name. (inherited from TimeSeries).
	Style	The style of RSI.

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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 RSI 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 RSI 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, IndicatorStyle)	Calculate RSI for the specific instance of ISeries, index, length, bar data and style.

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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).
	downTS
	input	(inherited from Indicator).
	length
	name	(inherited from TimeSeries).
	style
	upTS

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Remarks

The Relative Strength Index, developed by Welles Wilder is a special form of the Momentum and probably the most widely used contra-trend-oscillator. Contrary to the implications of its name, the indicator does not show the instrument's strength in comparison to other instruments, but rather the instrument's internal strength compared to its former prices.
The RSI is calculated in several steps: within a given period, the individual differences between the upward closing prices (Close today > Close yesterday) and downward closing prices (Close today less than Close yesterday) are added up and afterwards divided by the number of observations minus one. The result is the day's mean value of the upward and downward strength of the underlying instrument. Thereafter, the relative strength is calculated by dividing the average upward strength by the average downward strength. Finally, you arrive at the RSI by subtracting from 100 the quotient of 100 divided by 1 plus relative strength.

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

Note, that there are two styles of indicator RSI. Some trading systems use the formula (which is a little bit distinguished from classical) for calculation of this indicator. Therefore Old gives an opportunity to use two styles RSI - classical (Old style) and little bit changed (New style.)

RSI has Old style by Default.

Formula for Old (classical) style:

Inheritance Hierarchy

OberMind.TimeSeries

OberMind.Indicator

OberMind.Indicators.RSI

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RSI Class

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