999英语网单词

covariance的意思

covariance

英 [k'verns] 美 [ko'vrns]

n. [数] 协方差；共分散

covariance

英文词源

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

双语例句

1. 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.

2. Covariance analysis was used to analyze herbicide efficacy data from rapeseed experiments.: 摘要采用协方差分析方法,对油菜田除草剂的试验结果进行了分析.

3. 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.

4. Returns the covariance of two series evaluated over a set ( biased ).: 返回在某一集合上对两个系列求得的协方差 ( 偏置填充 ).

5. Covariance analysis with forward stepwise variable selection was carried out.: 统计方法采用逐步向前变量选择协方差分析.

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