/// <summary>
/// Joins this instance with another instance, by applying a selection function.
/// </summary>
/// <typeparam name="S">The element type.</typeparam>
/// <typeparam name="R">The result type.</typeparam>
/// <param name="other">The second.</param>
/// <param name="selector">The selection map.</param>
/// <returns>The combined value, with the joint probability.</returns>
public ProbValue <R> JoinWith <S, R>(ProbValue <S> other, Func <T, S, R> selector)
{
return(new ProbValue <R>(selector(this.value, other.value), this.probability * other.probability));
}
/// <summary>
/// Applies a specified map to a value with its associated likelyhood.
/// </summary>
/// <typeparam name="S">The result type</typeparam>
/// <param name="f">The map.</param>
/// <param name="v">The value.</param>
/// <returns>The mapped value with its associated likelyhood.</returns>
public static ProbValue <S> Map <S>(Func <T, S> f, ProbValue <T> v)
{
return(v.Map(f));
}
/// <summary>
/// Joins this instance with another instance, by applying a selection function.
/// </summary>
/// <typeparam name="S">The element type.</typeparam>
/// <typeparam name="R">The result type.</typeparam>
/// <param name="v1">The first value.</param>
/// <param name="v2">The second value.</param>
/// <param name="selector">The selection map.</param>
/// <returns>The combined value, with the joint probability.</returns>
public static ProbValue <R> Join <S, R>(ProbValue <T> v1, ProbValue <S> v2, Func <T, S, R> selector)
{
return(v1.JoinWith(v2, selector));
}
private static Dist <S> Map <S>(Dist <T> distribution, Func <T, S> f)
{
return(new Dist <S>(distribution.values.Select(v => ProbValue <T> .Map(f, v))));
}