Rather, it builds a model directly from experiential data. 更确切地说,它直接依照经验数据建立起一个模型。
It should be noted that the regression analysis regression equation is based on historical information, it is a kind of empirical data. 应该注意的是,回归分析得到的回归方程是根据历史资料计算出来的,所以是一种经验数据。