Subset Class

Represents a set of indexes that can be used to select elements in a Vector<T> or rows in a IDataFrame.

Definition

Namespace: Extreme.DataAnalysis
Assembly: Extreme.Numerics (in Extreme.Numerics.dll) Version: 8.1.23

[SerializableAttribute]
public class Subset : IEnumerable<int>, IEnumerable

Visual Basic

<SerializableAttribute>
Public Class Subset
	Implements IEnumerable(Of Integer), IEnumerable

C++/CLI

[SerializableAttribute]
public ref class Subset : IEnumerable<int>, 
	IEnumerable

[<SerializableAttribute>]
type Subset = 
    class
        interface IEnumerable<int>
        interface IEnumerable
    end

Use the Subset object to select a subset of the elements in a Vector<T> or the rows in a IDataFrame.

Subset(Int32, Int32[])	Constructs a new Subset from an array of indexes.
Subset(Int32, Int32, Int32)	Constructs a new Subset from a range of indexes.

EndIndex	Gets the index of the observation past the last visible observation.
IsContiguous	Gets whether the subset selects a contiguous range which may wrap around the end of the collection.
IsEmpty	Gets whether the subset is empty.
IsSlice	Gets whether the subset selects a contiguous range.
Item	Gets the position of the observation at the specified index.
Length	Gets the number of elements in the subset.
OriginalLength	Gets the length of the original data.
StartIndex	Gets the index of the first visible observation.

ApplySort	Returns a subset that applies the specified sort subset to the current subset.
Complement	Returns a Subset that is the complement of the specified subset.
Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object)
GetEnumerator	Returns an enumerator that iterates over the indexes in the subset.
GetHashCode	Serves as the default hash function. (Inherited from Object)
GetReverse	Returns a subset that lists the observations of the current subset in reverse order.
GetType	Gets the Type of the current instance. (Inherited from Object)
Intersection	Returns a subset representing the intersection of two subsets.
MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object)
Reverse	Returns a subset that reverses the observations.
ToString	Returns a string that represents the current object. (Inherited from Object)
Union	Returns a subset that represents the union of two subsets.

BitwiseAnd(Subset, Subset)	Returns a subset representing the intersection of two subsets.
BitwiseOr(Subset, Subset)	Returns a subset that represents the union of two subsets.
OnesComplement(Subset)	Returns a Subset that is the complement of the specified subset.

An empty subset of any length.

Group<Int32>	Returns a grouping by the unique elements in a sequence. (Defined by Grouping)
Group<Int32>	Returns a grouping by the unique elements in a sequence using the specified comparer to determine equality. (Defined by Grouping)
Sum<Int32>	Computes the sum of the sequence of values. (Defined by ArrayMath)
Sum<Int32, U>	Computes the sum of the sequence of values that are obtained by invoking a transform function on each element of the input sequence. (Defined by ArrayMath)