Scott M, Flaherty D, Currall J
School of Mathematics and Statistics, University of Glasgow, Glasgow, G12 8QW.
J Small Anim Pract. 2013 Mar;54(3):124-8. doi: 10.1111/jsap.12029.
This short addition to our series on clinical statistics concerns relationships, and answering questions such as "are blood pressure and weight related?" In a later article, we will answer the more interesting question about how they might be related. This article follows on logically from the previous one dealing with categorical data, the major difference being here that we will consider two continuous variables, which naturally leads to the use of a Pearson correlation or occasionally to a Spearman rank correlation coefficient.
我们关于临床统计学系列的这篇短文涉及相关性，以及回答诸如“血压和体重相关吗？”这类问题。在后续文章中，我们将回答关于它们可能如何相关的更有趣问题。本文在逻辑上承接上一篇关于分类数据的文章，主要区别在于这里我们将考虑两个连续变量，这自然会用到皮尔逊相关系数，偶尔也会用到斯皮尔曼等级相关系数。
