Enum TiesStrategy
- java.lang.Object
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- java.lang.Enum<TiesStrategy>
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- org.apache.commons.math.stat.ranking.TiesStrategy
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<TiesStrategy>
public enum TiesStrategy extends java.lang.Enum<TiesStrategy>
Strategies for handling tied values in rank transformations.- SEQUENTIAL - Ties are assigned ranks in order of occurrence in the original array, for example (1,3,4,3) is ranked as (1,2,4,3)
- MINIMUM - Tied values are assigned the minimum applicable rank, or the rank of the first occurrence. For example, (1,3,4,3) is ranked as (1,2,4,2)
- MAXIMUM - Tied values are assigned the maximum applicable rank, or the rank of the last occurrence. For example, (1,3,4,3) is ranked as (1,3,4,3)
- AVERAGE - Tied values are assigned the average of the applicable ranks. For example, (1,3,4,3) is ranked as (1,2.5,4,2.5)
- RANDOM - Tied values are assigned a random integer rank from among the applicable values. The assigned rank will always be an integer, (inclusively) between the values returned by the MINIMUM and MAXIMUM strategies.
- Since:
- 2.0
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Enum Constant Summary
Enum Constants Enum Constant Description AVERAGE
Ties get the average of applicable ranksMAXIMUM
Ties get the maximum applicable rankMINIMUM
Ties get the minimum applicable rankRANDOM
Ties get a random integral value from among applicable ranksSEQUENTIAL
Ties assigned sequential ranks in order of occurrence
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static TiesStrategy
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static TiesStrategy[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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SEQUENTIAL
public static final TiesStrategy SEQUENTIAL
Ties assigned sequential ranks in order of occurrence
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MINIMUM
public static final TiesStrategy MINIMUM
Ties get the minimum applicable rank
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MAXIMUM
public static final TiesStrategy MAXIMUM
Ties get the maximum applicable rank
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AVERAGE
public static final TiesStrategy AVERAGE
Ties get the average of applicable ranks
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RANDOM
public static final TiesStrategy RANDOM
Ties get a random integral value from among applicable ranks
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Method Detail
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values
public static TiesStrategy[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (TiesStrategy c : TiesStrategy.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static TiesStrategy valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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