tctcab 看了一下MATLAB里的corr2文档,看起来就是算了个相关系数吧,那么 x1 <- matrix(rnorm(100),20,5) x2 <- x1 +matrix(rnorm(100,sd=0.1),20,5) cor(as.vector(x1),as.vector(x2)) ## output [1] 0.9951854