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本文分析了回归分解的内在机理。提出了外因子贡献的概念,提出并证明了外因子贡献是引起分解不正确的根本原因这一论述。讨论了因子个数,因子间相关性和随机因子对回归分解的影响。议论了组合因子对分解的影响,得出确定性模型不能保证分解正确的结论。
This paper analyzes the internal mechanism of regression decomposition. Proposed the concept of external factor contribution, proposed and proved that external factor contribution is the root cause of decomposition is incorrect. The effects of the number of factors, the correlation between factors and the random factors on the regression decomposition are discussed. The effect of combinatorial factor on decomposition is discussed, and the conclusion that deterministic model can not guarantee the correct decomposition is obtained.