灰色网络简单的GM(1,1)灰色预测函数，自动返回预测值-Network simple gray GM (1,1) Grey forecasting function, automatic return forecast

灰色预测模型，输入历史数据，得到未来的预测值，预测长度可自选。-Gray prediction model, enter historical data, the predictive value of the future, the predicted length can be chosen.

灰色预测matlab程序与散点图的绘制的matlab程序-Grey prediction matlab program and scatter diagram of MATLAB program