/// <summary>
/// The dynamic table generation.
/// </summary>
/// <param name="first">The first sequence.</param>
/// <param name="second">The second sequence.</param>
/// <returns>The dynamic table.</returns>
private ProfileTableItem GenerateDynamicTable(Profile first, Profile second)
{
var length1 = first.Count + 1;
var length2 = second.Count + 1;
var dynamicTable = new ProfileTableItem(first, second)
{
{ new Index(0, 0), new DynamicTableItem(0, new List<Index>()) }
};
// first row set
for (var i = 1; i < length2; i++)
{
var ii = i - 1; // in sequence
dynamicTable.Add(new Index(0, i), new DynamicTableItem(i * this.Estimator.ProfileItemNucleotideDistance(second[ii], Nucleotide._), new List<Index> { new Index(0, i - 1) }));
}
// first column set
for (var i = 1; i < length1; i++)
{
var ii = i - 1; // in sequence
dynamicTable.Add(new Index(i, 0), new DynamicTableItem(i * this.Estimator.ProfileItemNucleotideDistance(first[ii], Nucleotide._), new List<Index> { new Index(i - 1, 0) }));
}
for (var i = 1; i < length1; i++)
{
for (var j = 1; j < length2; j++)
{
var pj = new Index(i - 1, j); // same column
var pi = new Index(i, j - 1); // same row
var pij = new Index(i - 1, j - 1);
var ii = i - 1; // in sequence
var jj = j - 1; // in sequence
var estimates = new Dictionary<Index, double>
{
{ pj, dynamicTable[pj].Distance + this.Estimator.ProfileItemNucleotideDistance(first[ii], Nucleotide._) },
{ pi, dynamicTable[pi].Distance + this.Estimator.ProfileItemNucleotideDistance(Nucleotide._, second[jj]) },
{
pij,
dynamicTable[pij].Distance + this.Estimator.ProfileItemsDistance(first[ii], second[jj])
}
};
var d = estimates.Values.Min();
var dynamicTableItem = new DynamicTableItem(d, estimates.Where(e => e.Value.IsEqualTo(d)).Select(e => e.Key).ToList());
dynamicTable.Add(new Index(i, j), dynamicTableItem);
}
}
return dynamicTable;
}