covariance
covariances 是 covariance 的复数形式，页面展示原形释义。
英 [kəʊ'veərɪəns]
美
[koʊ'verɪrns]
- n. [数] 协方差；共分散
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词族 · covariance
词形变化
英语词源
- covariance
- 1878, from covariant (1853), from co- + variant.
权威例句
- 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.