Accord.Statistics.Models.Markov.Learning.BaumWelchLearning.UpdateEmissions C# (CSharp) Method

        protected override void UpdateEmissions()
        {
            double[,] B = model.Emissions;
            int states = model.States;
            int symbols = model.Symbols;

            for (int i = 0; i < states; i++)
            {
                for (int j = 0; j < symbols; j++)
                {
                    double sum = 0, num = 0;

                    for (int k = 0; k < discreteObservations.Length; k++)
                    {
                        int T = discreteObservations[k].Length;
                        double[,] gammak = Gamma[k];

                        for (int l = 0; l < T; l++)
                        {
                            if (discreteObservations[k][l] == j)
                                num += gammak[l, i];

                            sum += gammak[l, i];
                        }
                    }

                    // avoid locking a parameter in zero.
                    if (num == 0) num = 1e-10;

                    B[i, j] = (sum != 0) ? num/sum : num;
                }
            }
        }