/// <summary>
/// Generate all possible permutations of length nChosen.
/// </summary>
/// <param name="nChosen">nChosen must be ≥ 0 and ≤ data.Length</param>
public List <double[]> GetPermutations(int nChosen)
{
if (nChosen < 0)
{
throw new ArgumentException("nChosen cannot be less than zero. nChosen must be ≥ 0 and ≤ data.Length");
}
if (nChosen > _data.Length)
{
throw new ArgumentException("nChosen cannot be less than zero. nChosen must be ≥ 0 and ≤ data.Length");
}
if (nChosen == 0)
{
return new List <double[]> {
new double[0]
}
}
;
if (nChosen == _data.Length)
{
return(GetPermut(_data));
}
CombinationGenerator cg = new CombinationGenerator(_data);
List <double[]> combins = cg.Combinations(nChosen);
List <double[]> permuts = new List <double[]>();
foreach (double[] da in combins)
{
permuts.AddRange(GetPermut(da));
}
return(permuts);
}
/// <summary>
/// Generate all possible permutations of length nChosen.
/// </summary>
/// <param name="nChosen">nChosen must be ≥ 0 and ≤ data.Length</param>
public List<double[]> GetPermutations(int nChosen)
{
if (nChosen < 0)
throw new ArgumentException("nChosen cannot be less than zero. nChosen must be ≥ 0 and ≤ data.Length");
if (nChosen > _data.Length)
throw new ArgumentException("nChosen cannot be less than zero. nChosen must be ≥ 0 and ≤ data.Length");
if (nChosen == 0)
return new List<double[]> { new double[0] };
if (nChosen == _data.Length)
return GetPermut(_data);
CombinationGenerator cg = new CombinationGenerator(_data);
List<double[]> combins = cg.Combinations(nChosen);
List<double[]> permuts = new List<double[]>();
foreach (double[] da in combins)
{
permuts.AddRange(GetPermut(da));
}
return permuts;
}