| 单词 | rank correlation |
| 释义 | rank correlation The method of checking the relation between two variables by correlating their rank orders. This is appropriate if the relation is believed to be monotonically increasing or decreasing, but its form is unknown. With N observations of each of two variables x and y, the rank correlation is found from C = σi (rxi - μ)(ryi - μ)/[σi (rxi - μ)2 ], where rxi, ryi, are the rank orders of xi, yi, and μ is the mean rank = (N + 1)/2. C can take any value between +1 and -1; rank correlation between the variables is positive if C > 0, negative if C < 0, and they are independent in rank if C = 0. |
| 随便看 |
|
英汉经管词典收录了3426条经济管理类英汉双解词条，基本涵盖了经济学、管理学、金融学、会计学、证券期货、商务活动等领域的常用英语单词及短语词组的翻译及用法，是学习及工作的有利工具。