英语词汇variance covariance怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

网络释义

1
?方差协方差
方差协方差

短语

1
variance-covariance matrix
方差 ; 协方差矩阵 ; 变量
2
variance-covariance propagation law
方差
3
variance covariance method
协方差

双语例句

1
The research of variance covariance propagation of nonlinear least squares adjusted parameters must keep in step with the development of nonlinear least squares adjustment in this area.
对于非线性最小二乘平差参数的方差协方差传播的研究，必须与非线性最小二乘平差的研究同步。
2
The distinction between covariance and contravariance is important for computations with tensors, which often have mixed variance.
协变和逆变的区别对于张量的计算尤为重要，这往往会出现混合方差。
3
The variance-covariance matrix still include parameter of variance in this condition, so our purpose is to look for feasible estimations.
因为这时模型协方差阵结构仍含有方差参数，因此我们的目标是寻求可行估计。

单词	variance covariance
释义	variance covariance 简明释义变异数协方差网络释义 1 ?方差协方差方差协方差短语 1 variance-covariance matrix 方差 ; 协方差矩阵 ; 变量 2 variance-covariance propagation law 方差 3 variance covariance method 协方差双语例句 1 The research of variance covariance propagation of nonlinear least squares adjusted parameters must keep in step with the development of nonlinear least squares adjustment in this area. 对于非线性最小二乘平差参数的方差协方差传播的研究，必须与非线性最小二乘平差的研究同步。 2 The distinction between covariance and contravariance is important for computations with tensors, which often have mixed variance. 协变和逆变的区别对于张量的计算尤为重要，这往往会出现混合方差。 3 The variance-covariance matrix still include parameter of variance in this condition, so our purpose is to look for feasible estimations. 因为这时模型协方差阵结构仍含有方差参数，因此我们的目标是寻求可行估计。
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