摘要
本文证明了常用的稳定性指标不满足线性模型的等方差性,通过对数变换后,数据能近似满足等方差性和正态性等条件,从而证明稳定性指标作对数变换的合理性。
The paper shows that the ordinary stability norm does not satisfy the variances of the lines model. After some changes in data, it can nearly satisfy the conditions of variances and normality S(?) as to prove the reasonableness of logarithm transformation.
关键词
稳定性试验
参数
设计
对数变换
Parameter design
logarithm trandformation
normality
variance analysis
stability test
