covariances

covariances

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• 网络斜方差矩阵；共变数分析；协方差分析

例句

In practice, the class means and covariances are not known.

在应用中，各类的均值和方差是未知的。

Secondly, the numerical characteristics such as mathematical expections, variances and covariances are obtained.

其次，研究了如此得到概率分布的数学期望、方差和协方差等数字特征。