Performs two-sample Wilcoxon tests on data; it is also known as ‘Mann-Whitney’ test.
欲檢定的兩母體中位數差異
指定的檢定方向
指定是否使用Hodges-Lehmann估計法計算精確p值
是否計算樣本敘述統計量
指定是否顯示等級資訊
R Core Team (2013). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria.