GM（1，n）灰色预测模型，只有模型建立，计算，作图，检验过程略-GM (1, n) Grey forecasting model, only the model, calculation, mapping, testing process slightly

灰色预测与BP神经网络系统结合程序源码，具有较高拟合度。用于预测-Grey prediction system of BP neural network combined with the program source code, with a high goodness of fit. Used to predict