一个GM(1,1)模型的程序,添加到matlab目录中即可直接调用.附有一个关于灰色模型的简述文档,可对GM(1,1)原理有一个初始的了解.-A GM (1,1) model of the process, added to the matlab directory can be called directly. Accompanied by a brief descr iption of the gray model on the document, can GM (1,1) principl