Branching Class

[SerializableAttribute]
public class Branching : BaseFilter<BranchingOptions, Branching>

<SerializableAttribute>
Public Class Branching
	Inherits BaseFilter(Of BranchingOptions, Branching)

object[,] data = 
{
    { "Id",  "IsSmoker", "Age" },
    {   0,       1,        10  },
    {   1,       1,        15  },
    {   2,       0,        40  },
    {   3,       1,        20  },
    {   4,       0,        70  },
    {   5,       0,        55  },
};

// Create a DataTable from data
DataTable input = data.ToTable();

// We will create two filters, one to operate on the smoking
// branch of the data, and other in the non-smoking subjects.
// 
var smoker = new LinearScaling();
var common = new LinearScaling();

// for the smokers, we will convert the age to [-1; 0]
smoker.Columns.Add(new LinearScaling.Options("Age")
{
    SourceRange = new DoubleRange(10, 20),
    OutputRange = new DoubleRange(-1, 0)
});

// for non-smokers, we will convert the age to [0; +1]
common.Columns.Add(new LinearScaling.Options("Age")
{
    SourceRange = new DoubleRange(40, 70),
    OutputRange = new DoubleRange(0, 1)
});

// We now configure and create the branch filter
var settings = new Branching.Options("IsSmoker");
settings.Filters.Add(1, smoker);
settings.Filters.Add(0, common);

Branching branching = new Branching(settings);


// Finally, we can process the input data:
DataTable actual = branching.Apply(input);

// As result, the generated table will
// then contain the following entries:

//  { "Id",  "IsSmoker", "Age" },
//  {   0,       1,      -1.0  },
//  {   1,       1,      -0.5  },
//  {   2,       0,       0.0  },
//  {   3,       1,       0.0  },
//  {   4,       0,       1.0  },
//  {   5,       0,       0.5  },