/// <summary>
/// Select axis of maximum spread and test for degenerate data sets.
/// </summary>
public int Select <T> (KdNode <T> target) where T : IVector
{
// Use the internal bounds to detect degenerate data sets.
IVector diagonal = target.InternalBounds.Diagonal;
int max_spread_id = VectorReductions.IndexNormInf(diagonal);
// Sanity check for degenerate data-sets
if (FloatComparison.CloseZero(diagonal[max_spread_id], FloatComparison.DefaultEps))
{
throw new DegenerateDatasetException();
}
return(max_spread_id);
}
public void TestIndexNormInf()
{
Vector a = Vector.Create(1.0, 2.0);
Assert.AreEqual(1, VectorReductions.IndexNormInf(a));
}
