使用matlab撰写的GM(1,1)灰度预测算法，能够实现数学模型的趋势预测。它可以实现数据平移（需要的话）、检验，并最后预测。-Use matlab to write GM (1,1) gray prediction algorithm, can realize the mathematical model of the trend prediction. It can realize the data translation (if needed), test, and finally pr