If data have accurate index law, direct data grey model should build to do with them.

如果数据本身具有准指数规律，应该按照直接数据灰色模型的建模方法。

youdao

If data have accurate index law, direct data grey model should build to do with them.

如果数据本身具有准指数规律，应该按照直接数据灰色模型的建模方法。

youdao