Likelihood ratio test, rank correlation analysis and principal component analysis were used to investigate the optimal model of function and the index system.

似然比检验、秩相关分析、主成分分析等方法相继用于研究函数的最适模型和指标体系。

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Likelihood ratio test, rank correlation analysis and principal component analysis were used to investigate the optimal model of function and the index system.

似然比检验、秩相关分析、主成分分析等方法相继用于研究函数的最适模型和指标体系。

youdao