huiduyuce

代码说明：

  灰度预测模型在空气污染预测中的应用，大家可以看看(Gray prediction model in the prediction of air pollution, we can look at)

文件列表：

灰度预测模型
............\arma_last.m,1966,2012-07-22
............\data.txt,47,2012-07-22
............\GM.asv,426,2012-07-21
............\GM.m,558,2012-07-22
............\GMnew.m,4499,2012-07-22
............\text.m,94,2012-07-22