covariance

英式音标：[kəʊ'veərɪəns]

美式音标：[koʊ'verɪrns]

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概况：

n. [数] 协方差；共分散

词义：

n.

协方差；

英英释义

covariance[ kəu'vεəriəns ]

n.(statistics) the mean value of the product of the deviations of two variates from their respective means

用法：

词组短语

covariance matrix[计]协方差矩阵

covariance analysis协方差分析；积差分析；共变量分析

covariance function协方差函数；共变量函数；积差函数

analysis of covariance共分散分析；协方差分析

双语例句

用作名词(n.)

Analysis of covariance is a combination of regression analysis and variance analysis.
协方差分析足把直线回归与方差分析结合起来应用的一种方法。

The data on covariance presently available are here.
目前所能获得的关于协变的资料都在这儿。

The theoretical foundation of the covariance is pertinence of system theory.
协变性的理论基础是系统原理中的相关性。

权威例句

Sparse inverse covariance estimation with the graphical lasso

Fuzzy clustering with a fuzzy covariance matrix

Fit Indices in Covariance Structure Modeling: Sensitivity to Underparametrized Model Misspesification

Heteroskedasticity and Autocorrelation Consistent Covariance Matrix Estimation

A Heteroskedasticity-Consistent Covariance Matrix Estimator and a Direct Test for Heteroskedasticity

Power analysis and determination of sample size for covariance structure modeling.

Significance tests and goodness of fit in the analysis of covariance structures.

Cutoff Criteria for Fit Indexes in Covariance Structure Anaysis: Conventional Criteria Versus New Alternatives

A Simple, Positive Semi-Definite, Heteroskedasticity: An Autocorrelation Consistent Covariance Matrix

Taylor & Francis Online :: Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new altern...

同根词：covariant

英语词源：

covariance

1878, from covariant (1853), from co- + variant.

造句：

1. The additive genetic variance of the same character, estimated from the covariance of half sibs, was 0. 9602.

从半同胞协方差估计出来的，同一性状的加性遗传方差为0．9602。

-- 来源 -- 英汉 - 辞典例句

2. alysis covariance

协方差分析

-- 来源 -- 英汉 - 翻译参考[网络]

3. The data on covariance presently available are here.

目前所能获得的关于协变的资料都在这儿。

-- 来源 -- 英汉 - 辞典例句

4. regularized covariance

正则化协方差

-- 来源 -- 英汉 - 翻译参考[网络]

5. analysis of covariance

共变数分析;协方差分析

-- 来源 -- 英汉 - 翻译参考[网络]

6. covariance for cluster sampling

整群抽样协方差

-- 来源 -- 英汉 - 翻译参考[网络]

7. multivariate analysis of covariance

多变量协方差分析

-- 来源 -- 英汉 - 翻译参考[网络]

8. sample covariance matrix

样本协方差阵

-- 来源 -- 英汉 - 翻译参考[网络]

9. conditional covariance matrix

条件协方差矩阵

-- 来源 -- 英汉 - 翻译参考[网络]

10. covariance matrix

协方差矩阵

-- 来源 -- 英汉 - 短句参考