/// <summary>
/// Implements the map function from functional programming. This 'maps' the
/// function lambda onto the vector rv and returns the result.
/// </summary>
/// <param name="rv">A RowVector object.</param>
/// <param name="lambda">A function that takes a double and an index and
/// returns a double.</param>
/// <returns>A vector with the function lambda mapped onto rv.</returns>
public static RowVector Map(this RowVector rv, Func <double, int, double> lambda)
{
return(new RowVector(rv.Select(lambda).ToList()));
}
/// <summary>
/// Implements the map function from functional programming. This 'maps' the
/// function lambda onto the vector rv and returns the result.
/// </summary>
/// <param name="rv">A RowVector object.</param>
/// <param name="lambda">A function that takes a double and returns a double.</param>
/// <returns>A vector with the function lambda mapped onto rv.</returns>
public static RowVector Map(this RowVector rv, Func <double, double> lambda)
{
// Note: the Select method refers to Enumerable.Select in the Linq
// namespace.
return(new RowVector(rv.Select(lambda).ToList()));
}
