2016-11-07 ALEX LIN
更新日志 macOS 上搭建 R 开发环境 R 语言官方网站:https://www.r-project.org RStudio 官方网站:https://www.rstudio.com RStudio 是 R 语言的IDE。 安装包安装 安装 XQuartz 下载地址:https://www.xquartz.org 安装 R 下载地址:https://cran.r-project.org 安装 RStudio 下载地址:https://www.rstudio.com/products/rstudio/download/ 命令行安装 安装 Homebrew /usr/bin/rub 继续阅读 »
2017-10-17 summer
环境安装问题 之前安装了解过R的安装,因为要用到分词,所以需要安装rJava和Rwordseg两个包,rJava可以安装成功,但是第二个包一直报错,问了度娘和谷歌都没能解决,最后卸载原有的R统一安装最新版的R,解决该问题。具体安装不啰嗦了,网上很多。 继续阅读 »
2014-01-24 Kun Ren
R rocks in both academia and industry nowadays. A rapidly increasing number of researchers choose R to be one of their productive tools for data analysis and data visualization. It is partially because the software is totally free and open-source but also because the community behind the stage who contributes to nearly 继续阅读 »
2014-02-15 Kun Ren
Writing R code can be very easy. It depends on how much you want to achieve with your code and what features you want your code to support. 继续阅读 »
2016-04-28 Borg
花了好久写好的R包与shiny应用。R包可以在通过github安装,repo上也有安装说明,安装完成后运行runExample()能够调出本地版本的shiny app,app上的使用说明更加明确。不会R语言的可以直接无视package,有shinyio上托管的应用,可以自己上传文件查看。注意上传文件是将目录 /data/data/com.xiaomi.hm.health/databases 压缩命名为databases.zip得到,注意是整个databases目录压缩,不是databases目录下的文件。用户id可以在手环官方应用个人信息页面得到。 继续阅读 »
2014-03-15 Kun Ren
In R, function may not be as special as it is in other programming languages; it is regarded as one of the many types and can be passed as an argument to some other function. The way we deal with other objects such list and data.frame definitely applies to function. Here is a simple example in which we define two funct 继续阅读 »
2014-12-03 Kun Ren
r nse
One of my favorite features of R is its meta-programming facilities. It can be simply demonstrated by the following examples. 继续阅读 »
2014-01-26 Kun Ren
It is quite easy to get started with R. The very first step is to download R from the official website , and install it. 继续阅读 »
2014-01-28 Kun Ren
For R beginners, the first operator they use is probably the assignment operator 继续阅读 »
2014-05-27 veryyoung
从B 树、B+ 树、B* 树谈到R 树   作者:July、weedge、Frankie。编程艺术室出品。 说明:本文从B树开始谈起,然后论述B+树、B*树,最后谈到R 树。其中B树、B+树及B*树部分由weedge完成,R 树部分由Frankie完成,全文最终由July统稿修订完成。 出处:http://blog.csdn.net/v_JULY_v 。   第一节、B树、B+树、B*树 1.前言: 动态查找树主要有:二叉查找树(Binary Search Tree),平衡二叉查找树(Balanced Binary Search Tree),红黑树(Red-Black Tree ),B-tree/B+-tree/ B*-tree 继续阅读 »