所谓正交设计的回归分析,就是一方面利用正交设计的“正交性”这一特点,即利用“均衡分散性”与“整齐可比性”这两个基本原理,可以有计划、有目的、科学地在正交表上安排较少的试验次数,得到较好的试验条件;另一方面利用回归分析法中应用最小二乘法原理,可以通过实测的数据,使诸因素与指标之间建立经验公式,这个重要特点可把两者的优点有机地结合起来,构成了正交设计 The so-called regression analysis of orthogonal design is on the one hand to use the orthogonality character of orthogonal design, that is, to use the two basic principles of “equilibrium dispersion” and “comparison of orderliness”, which can be planned and purposeful. Scientifically arrange fewer test times on the orthogonal table to obtain better test conditions; on the other hand, by using the principle of least squares in regression analysis, you can use the measured data to establish the factors and indicators. Empirical formula, this important feature can combine the advantages of the two organically to form an orthogonal design