你的浏览器禁用了JavaScript, 请开启后刷新浏览器获得更好的体验!
没有找到相关结果
dj123jary 2016-08-11 回答
赞同来自: Marvin Guo
要回复问题请先登录或注册
推荐一份编程学习资源,包含了各类编程语言学习进阶路线图、视频教程、配套书籍文档、数百份面经,各大厂面试真题。编程语言包括:Java、前端、PHP、Python、Linux运维、软件测试、数据解构与算法、C语言、go语言等
微信扫码关注公众号,发送 "编程"获取资源
1 个回复
dj123jary 2016-08-11 回答
赞同来自: Marvin Guo
> x <- matrix(rnorm(10*3), 10, 3)
> x
[,1] [,2] [,3]
[1,] -0.4498279 1.6169854 2.25597722
[2,] -1.1618668 0.5295296 -2.44718893
[3,] 1.5799922 0.5692471 0.54210600
[4,] 1.4555268 1.1161297 0.71175616
[5,] -0.2686107 0.2237898 0.68070911
[6,] -0.2620662 -2.1139457 0.03815247
[7,] -2.4806498 0.3981632 0.81967420
[8,] -0.4603556 0.2328576 0.26239425
[9,] -1.0359132 -0.4183951 -0.83718972
[10,] -1.9233996 0.8439721 -1.24656879
> cosine(x)
[,1] [,2] [,3]
[1,] 1.00000000 -0.04595577 0.2835771
[2,] -0.04595577 1.00000000 0.2582956
[3,] 0.28357713 0.25829565 1.0000000