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 »
2014-01-28 Kun Ren
For R beginners, the first operator they use is probably the assignment operator 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 »
2014-01-26 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 »
2014-02-15 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 »
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 »
2014-02-01 Kun Ren
For R beginners, for loop is an elementary flow-control device that simplifies repeatedly calling functions with different parameters. A possible block of code is like this: 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 »