ErrorDerivativeParameters.cs

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namespace SpikingNeuronNetwork.Lib.Training
{
    using Interfaces;
    using System.Collections.Generic;
    using System.Linq;

    public class ErrorDerivativeParameters : IErrorDerivativeParameters
    {
        public Dictionary<int, double> ErrorToOutputSpikeTimeDerivatives { get; set; }
        
        public Dictionary<Synapse, double> OutputSpikeTimeToWeightDerivatives { get; set; }

        public ErrorDerivativeParameters()
        {
            ErrorToOutputSpikeTimeDerivatives = new Dictionary<int, double>();
            OutputSpikeTimeToWeightDerivatives = new Dictionary<Synapse, double>();
        }

        public List<Synapse> GetSynapses()
        {
            return OutputSpikeTimeToWeightDerivatives.Keys.ToList();
        }

        public double GetErrorDerivative(Synapse synapse)
        {
            return ErrorToOutputSpikeTimeDerivatives[synapse.OutputNeuronIndex]*
                   OutputSpikeTimeToWeightDerivatives[synapse];
        }
    }
}