AdvancedOCR.MarkingWeights.PreTrainCore C# (CSharp) Method

        protected override void PreTrainCore(Step downstream)
        {
            int inputIndex = 0;
            foreach (Step upstream in downstream.Upstream)
            {
                Debug.Assert(inputIndex + upstream.Length <= InputLength);
                for (int i = 0; i < upstream.Length; i++)
                {
                    // Error second derivative relative to output is constant, as first derivative is 2.0 * (state - desiredState).
                    upstream.ErrorDerivative[inputIndex] = 2.0;

                    inputIndex += 1;
                }
            }
        }