我用R来分别计算这两个,得到的结果是
夹角余弦:
[,1] [,2] [,3] [,4]
[1,] 1.0000000 0.9942669 0.9931115 0.9958584
[2,] 0.9942669 1.0000000 0.9920830 0.9958170
[3,] 0.9931115 0.9920830 1.0000000 0.9934787
[4,] 0.9958584 0.9958170 0.9934787 1.0000000
相关系数:
[,1] [,2] [,3] [,4]
[1,] 1.0000000 0.3110662 0.4765039 0.4894560
[2,] 0.3110662 1.0000000 0.3387837 0.3727486
[3,] 0.4765039 0.3387837 1.0000000 0.4622904
[4,] 0.4894560 0.3727486 0.4622904 1.0000000
这两个到底谁更能说明样本的相关性呢?????
谢谢啦
[此贴子已经被作者于2008-8-1 14:14:44编辑过]