College of Sciences, Northwest A&F University, Yangling, P. R. China.
PLoS One. 2021 Mar 4;16(3):e0247722. doi: 10.1371/journal.pone.0247722. eCollection 2021.
One-to-multiple path analysis model describes the regulation mechanism of multiple independent variables to one dependent variable by dividing the correlation coefficient and the determination coefficient. How to analyse more complex regulation mechanisms of multiple independent variables to multiple dependent variables? Similarly, according to multiple-to-multiple linear regression analysis, multiple-to-multiple path analysis model was proposed in this paper and it demonstrated more complex regulation mechanisms among multiple independent variables and multiple dependent variables by dividing the generalized determination coefficient. Differently, three other types of paths were generated in multiple-to-multiple path analysis model in that the correlation among multiple dependent variables was considered. Then, the decision coefficient of each independent variable was constructed for dependent variables system, and its hypothesis testing statistics were given. Finally, the research example of the wheat breeding rules in arid area demonstrated that the multiple-to-multiple path analysis considering more correlation information can get better results.
一对一多路径分析模型通过划分相关系数和确定系数来描述多个自变量对一个因变量的调节机制。那么,如何分析多个自变量对多个因变量的更复杂的调节机制呢?同样,根据多元线性回归分析,本文提出了多元多路径分析模型,并通过划分广义确定系数来展示多个自变量和多个因变量之间更复杂的调节机制。不同的是,多元多路径分析模型中还生成了三种其他类型的路径,考虑了多个因变量之间的相关性。然后,为因变量系统构建了每个自变量的决定系数,并给出了其假设检验统计量。最后,干旱地区小麦育种规律的研究实例表明,考虑更多相关信息的多元多路径分析可以得到更好的结果。