R Class

Williams? %R (R)
[Serializable()] 
public class R : Indicator
This language is not supported or no code example is available.
[Serializable()] 
public ref class R : public Indicator^
This language is not supported or no code example is available.
public  
Serializable() 
class R 
extends Indicator
This language is not supported or no code example is available.
Name Description
Public constructor R(ISeries, int) R normal constructor.
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Name Description
Public property AutoUpdate (inherited from Indicator).
Public property Count Gets the count. (inherited from Indicator).
Public property Description Gets the description. (inherited from TimeSeries).
Public property Fields (inherited from Indicator).
Public property First Gets the first. (inherited from Indicator).
Public property FirstDateTime Datetime of the first item in this time array (inherited from Indicator).
Public property Id Gets the id. (inherited from TimeSeries).
Public property Indicators Gets the indicators. (inherited from TimeSeries).
Public property IsMultiIndicator (inherited from Indicator).
Public property IsUseBarSlice (inherited from Indicator).
Public property Item(int, BarData) Gets the Double at the specified index and bar data. (inherited from Indicator).
Public property Item(int) Gets or sets the Double at the specified index. (inherited from Indicator).
Public property Last Gets the last. (inherited from Indicator).
Public property LastDateTime Datetime of the last item in this time array (inherited from Indicator).
Public property Length The length of R.
Public property MaxLength (inherited from TimeSeries).
Public property Name Gets the name. (inherited from TimeSeries).
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Methods
 
Name Description
Public method Add(DateTime, double) Adds the specified date time. (inherited from TimeSeries).
Public method Ago(int) Agoes the specified n. (inherited from TimeSeries).
Public method Attach() (inherited from Indicator).
Public method Calculate(int) Calculate R at the specific index.
Public method Clear() (inherited from Indicator).
Public method Clone(ISeries)
Public method Contains(DateTime) Determines whether [contains] [the specified date time]. (inherited from TimeSeries).
Public method Crosses(TimeSeries, DateTime) Crosseses the specified series. (inherited from TimeSeries).
Public method Crosses(double, int) Crosseses the specified level. (inherited from TimeSeries).
Public method Detach() (inherited from Indicator).
Public method Exp() Exps this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
Public method GetAsymmetry(int, int, int) Gets the asymmetry. (inherited from TimeSeries).
Public method GetAutoCorrelation(int) Calculate autocorrelation (inherited from TimeSeries).
Public method GetAutoCovariance(int) Calculate autocovariance (inherited from TimeSeries).
Public method GetByDateTime(DateTime, SearchOption) Gets the by date time. (inherited from TimeSeries).
Public method GetByIndex(Instrument, int) (inherited from Indicator).
Public method GetByIndex(int, int) (inherited from Indicator).
Public method GetCorrelation(TimeSeries) Gets the correlation. (inherited from TimeSeries).
Public method GetCorrelation(TimeSeries, int, int) Gets the correlation. (inherited from TimeSeries).
Public method GetCorrelation(int, int, int, int) Gets the correlation. (inherited from TimeSeries).
Public method GetCovariance(TimeSeries) Gets the covariance. (inherited from TimeSeries).
Public method GetCovariance(TimeSeries, int, int) Gets the covariance. (inherited from TimeSeries).
Public method GetCovariance(int, int, int, int) Gets the covariance. (inherited from TimeSeries).
Public method GetDateTime(int) Gets the date time. (inherited from Indicator).
Public method GetExcess(int, int, int) Gets the excess. (inherited from TimeSeries).
Public method GetFirst(Instrument) (inherited from Indicator).
Public method GetFirst(int) (inherited from Indicator).
Public method GetIndex(DateTime, IndexOption) Gets the index. (inherited from Indicator).
Public method GetIntersection(TimeSeries) (inherited from TimeSeries).
Public method GetItem(int) Gets the item. (inherited from TimeSeries).
Public method GetLast(Instrument) (inherited from Indicator).
Public method GetLast(int) (inherited from Indicator).
Public method GetMax(DateTime, DateTime) Gets the maximum. (inherited from Indicator).
Public method GetMaxItem() Gets the maximum item. (inherited from TimeSeries).
Public method GetMean() Calculate mean (inherited from TimeSeries).
Public method GetMean(DateTime, DateTime, int) Calculate mean (inherited from TimeSeries).
Public method GetMean(int, int, int) Calculates mean (inherited from TimeSeries).
Public method GetMean(DateTime, DateTime) Calculate mean (inherited from TimeSeries).
Public method GetMean(int, int) Calculate mean (inherited from TimeSeries).
Public method GetMean(int) Calculate mean (inherited from TimeSeries).
Public method GetMedian() Calculates median (inherited from TimeSeries).
Public method GetMedian(DateTime, DateTime, int) Calculate median (inherited from TimeSeries).
Public method GetMedian(int, int, int) Calculates medain (inherited from TimeSeries).
Public method GetMedian(DateTime, DateTime) Calculate median (inherited from TimeSeries).
Public method GetMedian(int, int) Calculate median (inherited from TimeSeries).
Public method GetMedian(int) Calculate median (inherited from TimeSeries).
Public method GetMin(DateTime, DateTime) Gets the minimum. (inherited from Indicator).
Public method GetMinItem() Gets the minimum item. (inherited from TimeSeries).
Public method GetMoment(int, int, int, int) Gets the moment. (inherited from TimeSeries).
Public method GetNegativeSeries() Returns new double series with negative data entries from this array (inherited from TimeSeries).
Public method GetNegativeStdDev() Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeStdDev(DateTime, DateTime) Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeStdDev(DateTime, DateTime, int) Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeStdDev(int, int) Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeStdDev(int, int, int) Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeStdDev(int) Calculate standard deviation of negative data entries (inherited from TimeSeries).
Public method GetNegativeVariance(int, int, int) Calculate variance of negative data entries (inherited from TimeSeries).
Public method GetNegativeVariance() Calculate variance of negative data entries (inherited from TimeSeries).
Public method GetNegativeVariance(DateTime, DateTime) Calculate variance of negative data entries (inherited from TimeSeries).
Public method GetNegativeVariance(DateTime, DateTime, int) Gets the negative variance. (inherited from TimeSeries).
Public method GetNegativeVariance(int, int) Calculate variance of negative data entries (inherited from TimeSeries).
Public method GetNegativeVariance(int) Calculate variance of negative data entries (inherited from TimeSeries).
Public method GetPercentReturnSeries() Gets the percent return series. (inherited from TimeSeries).
Public method GetPositiveSeries() Returns new double series with positive data entries from this array (inherited from TimeSeries).
Public method GetPositiveStdDev() Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveStdDev(DateTime, DateTime) Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveStdDev(DateTime, DateTime, int) Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveStdDev(int, int) Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveStdDev(int, int, int) Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveStdDev(int) Calculate standard deviation of positive data entries (inherited from TimeSeries).
Public method GetPositiveVariance(int, int, int) Calculate variance of positive data entries (inherited from TimeSeries).
Public method GetPositiveVariance() Calculate variance of positive data entries (inherited from TimeSeries).
Public method GetPositiveVariance(DateTime, DateTime) Calculate variance of positive data entries (inherited from TimeSeries).
Public method GetPositiveVariance(DateTime, DateTime, int) Gets the positive variance. (inherited from TimeSeries).
Public method GetPositiveVariance(int, int) Calculate variance of positive data entries (inherited from TimeSeries).
Public method GetPositiveVariance(int) Calculate variance of positive data entries (inherited from TimeSeries).
Public method GetReturnSeries() Gets the return series. (inherited from TimeSeries).
Public method GetStdDev() Calculate standard deviation (inherited from TimeSeries).
Public method GetStdDev(DateTime, DateTime) Calculate standard deviation (inherited from TimeSeries).
Public method GetStdDev(DateTime, DateTime, int) Calculate standard deviation (inherited from TimeSeries).
Public method GetStdDev(int, int) Calculate standard deviation (inherited from TimeSeries).
Public method GetStdDev(int, int, int) Calculate standard deviation (inherited from TimeSeries).
Public method GetStdDev(int) Calculate standard deviation (inherited from TimeSeries).
Public method GetSum() Calculate sum (inherited from TimeSeries).
Public method GetSum(int, int, int) Calculate sum (inherited from TimeSeries).
Public method GetTimeSeriesItem(int) (inherited from TimeSeries).
Public method GetValue(int) Gets the value. (inherited from TimeSeries).
Public method GetVariance() Calculate variance (inherited from TimeSeries).
Public method GetVariance(int, int, int) Calculate variance (inherited from TimeSeries).
Public method GetVariance(DateTime, DateTime) Calculate variance (inherited from TimeSeries).
Public method GetVariance(DateTime, DateTime, int) Gets the variance. (inherited from TimeSeries).
Public method GetVariance(int, int) Calculate variance (inherited from TimeSeries).
Public method GetVariance(int) Calculate variance (inherited from TimeSeries).
Public method IndexOf(DateTime, SearchOption) Indexes the of. (inherited from TimeSeries).
Protected method Init() Init R indicator.
Public method Log() Logs this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
Public method Log10() Log10s this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
Public method Pow(double) Pows the specified pow. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
Public method Remove(int) Removes the specified index. (inherited from TimeSeries).
Public method Shift(int) Shifts the specified offset. (inherited from TimeSeries).
Public method Sqrt() SQRTs this instance. The type of this instance must have a parameterless constructor. (inherited from TimeSeries).
Public method Static Value(ISeries, int, int) Calculate R for the specific instance of ISeries, index and length.
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Name Description
Operator Static Addition Implements the +. (inherited from TimeSeries).
Operator Static Addition Implements the +. (inherited from TimeSeries).
Operator Static Addition Implements the +. (inherited from TimeSeries).
Operator Static Division Implements the /. (inherited from TimeSeries).
Operator Static Division Implements the /. (inherited from TimeSeries).
Operator Static Division Implements the /. (inherited from TimeSeries).
Operator Static Multiply Implements the *. (inherited from TimeSeries).
Operator Static Multiply Implements the *. (inherited from TimeSeries).
Operator Static Multiply Implements the *. (inherited from TimeSeries).
Operator Static Subtraction Implements the -. (inherited from TimeSeries).
Operator Static Subtraction Implements the -. (inherited from TimeSeries).
Operator Static Subtraction Implements the -. (inherited from TimeSeries).
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Fields
 
Name Description
Protected field calculate (inherited from Indicator).
Internal protected (Protected Friend) field description (inherited from TimeSeries).
Protected field input (inherited from Indicator).
Protected field length
Protected field name (inherited from TimeSeries).
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Remarks
 
Williams? %R is a momentum indicator that measures overbought/oversold levels. Williams? %R was developed by Larry Williams.  
 
The interpretation of Williams' %R is very similar to that of the Stochastic Oscillator except that %R is plotted upside-down and the Stochastic Oscillator has internal smoothing. To display the Williams? %R indicator on an upside-down scale, it is usually plotted using negative values (e.g., -20%). For the purpose of analysis and discussion, simply ignore the negative symbols. Readings in the range of 80 to 100% indicate that the security is oversold while readings in the 0 to 20% range suggest that it is overbought. As with all overbought/oversold indicators, it is best to wait for the security's price to change direction before placing your trades. For example, if an overbought/oversold indicator (such as the Stochastic Oscillator or Williams' %R) is showing an overbought condition, it is wise to wait for the security's price to turn down before selling the security.  
 
This indicator is described in more details in the Steve Achelis' book "Technical Analysis from A to Z".  
 
Formula:  

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Definition