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    Class IListExtensions

    Provides extension methods for IList that support sparse lists.

    Inheritance
    Object
    IListExtensions
    Inherited Members
    Object.Equals(Object)
    Object.Equals(Object, Object)
    Object.GetHashCode()
    Object.GetType()
    Object.MemberwiseClone()
    Object.ReferenceEquals(Object, Object)
    Object.ToString()
    Namespace: Microsoft.ML.Probabilistic.Collections
    Assembly: Microsoft.ML.Probabilistic.dll
    Syntax
    public static class IListExtensions

    Methods

    AsReadOnly<T>(IList<T>)

    Declaration
    public static IReadOnlyList<T> AsReadOnly<T>(this IList<T> list)
    Parameters
    Type Name Description
    IList<T> list
    Returns
    Type Description
    IReadOnlyList<T>
    Type Parameters
    Name Description
    T

    Inner(IList<Int32>, IList<Double>)

    Computes the inner product between an integer list and a double list of the same size.

    Declaration
    public static double Inner(this IList<int> source, IList<double> that)
    Parameters
    Type Name Description
    IList<Int32> source
    IList<Double> that
    Returns
    Type Description
    Double

    IsSparse<T>(IList<T>)

    Returns true if and only if this list is sparse

    Declaration
    public static bool IsSparse<T>(this IList<T> source)
    Parameters
    Type Name Description
    IList<T> source

    The list

    Returns
    Type Description
    Boolean
    Type Parameters
    Name Description
    T

    The type of this list

    ListReduce<T, TRes>(IList<T>, TRes, Func<TRes, T, TRes>)

    Reduces across a list.

    Declaration
    public static TRes ListReduce<T, TRes>(this IList<T> source, TRes initial, Func<TRes, T, TRes> fun)
    Parameters
    Type Name Description
    IList<T> source

    This list

    TRes initial

    Initial value for reduction

    Func<TRes, T, TRes> fun

    The function

    Returns
    Type Description
    TRes
    Type Parameters
    Name Description
    T

    Type of this list

    TRes

    Type of result

    ListReduce<T, T2, TRes>(IList<T>, IEnumerable<T2>, TRes, Func<TRes, T, T2, TRes>)

    Reduces across a list and another collection

    Declaration
    public static TRes ListReduce<T, T2, TRes>(this IList<T> source, IEnumerable<T2> secondList, TRes initial, Func<TRes, T, T2, TRes> fun)
    Parameters
    Type Name Description
    IList<T> source

    This list

    IEnumerable<T2> secondList

    The other collection

    TRes initial

    Initial value for reduction

    Func<TRes, T, T2, TRes> fun

    The function

    Returns
    Type Description
    TRes
    Type Parameters
    Name Description
    T

    Type of this list

    T2

    Type of the other list

    TRes

    Type of result

    ListSelect<T, T2>(IList<T>, Func<T, T2>)

    Similar to LINQ Select, except it takes and returns a list. If the supplied list is sparse, the returned list will also be sparse.

    Declaration
    public static IList<T2> ListSelect<T, T2>(this IList<T> source, Func<T, T2> converter)
    Parameters
    Type Name Description
    IList<T> source

    This list

    Func<T, T2> converter

    The converter

    Returns
    Type Description
    IList<T2>
    Type Parameters
    Name Description
    T

    The type of this list

    T2

    The target element type

    ListSum(IList<Int32>)

    Sums the elements of this list.

    Declaration
    public static int ListSum(this IList<int> source)
    Parameters
    Type Name Description
    IList<Int32> source
    Returns
    Type Description
    Int32

    ListSum(IList<Int32>, Func<Int32, Double>)

    Sums the elements of this list, after transforming each element using the specified converter.

    Declaration
    public static double ListSum(this IList<int> source, Func<int, double> converter)
    Parameters
    Type Name Description
    IList<Int32> source
    Func<Int32, Double> converter

    The converter

    Returns
    Type Description
    Double

    SetTo(IList<Double>, IEnumerable<Double>)

    Sets this list from an enumerable (need separate implementation from generic version for interop with Vectors)

    Declaration
    public static void SetTo(this IList<double> source, IEnumerable<double> that)
    Parameters
    Type Name Description
    IList<Double> source
    IEnumerable<Double> that

    SetTo<T>(IList<T>, IEnumerable<T>)

    Sets this list from an enumerable

    Declaration
    public static void SetTo<T>(this IList<T> source, IEnumerable<T> that)
    Parameters
    Type Name Description
    IList<T> source
    IEnumerable<T> that
    Type Parameters
    Name Description
    T

    ToVector(IList<Double>)

    Converts a list of doubles into a vector.

    Declaration
    public static Vector ToVector(this IList<double> source)
    Parameters
    Type Name Description
    IList<Double> source
    Returns
    Type Description
    Vector

    ToVector(IList<Int32>)

    Converts a list of ints into a double vector.

    Declaration
    public static Vector ToVector(this IList<int> source)
    Parameters
    Type Name Description
    IList<Int32> source
    Returns
    Type Description
    Vector
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