遇到了很多报错，最终也是通过不同方法装成功了。

问题1、提示rJava版本不到Java8

Loading required package: rJava
Error: package or namespace load failed for ‘corehunter’:
 .onLoad failed in loadNamespace() for 'corehunter', details:
  call: fun(libname, pkgname)
  error: Java version 8 or later required. Found version 7.
Execution halted

通过查看环境变量，可以看出我是java8，

which java
/public/System/jre1.8.0_25/bin/java
echo "$JAVA_HOME"
/public/System/jre1.8.0_25

但后来我发现系统有个java版本是java7

/usr/java/latest/bin/java -version
java version "1.7.0_51"
Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)

所以R并没有正确的识别

问题2、没有root权限

事实上，我卡在rJava安装的这步，这时R解释器给了提示 R CMD javareconf， 我执行后，变成了需要再次执行 并使用 root

Make sure you have Java Development Kit installed and correctly registered in R.
If in doubt, re-run "R CMD javareconf" as root.

ERROR: configuration failed for package ‘rJava’

解决、conda 永远的神

因为要root，我本来已经准备放弃，后来想到，conda也许可以帮忙装环境，搜到了，而且安装成功

image.png

后续，conda 陨落

本来打算一鼓作气用conda装完，结果conda执行完后，提示成功，但却没有corehunter包

image.png

最终，用R的CRAN补了corehunter包

#R语言
install.packages("corehunter")
** testing if installed package keeps a record of temporary installation path
* DONE (corehunter)

The downloaded source packages are in
    ‘/tmp/RtmpicjoAB/downloaded_packages’
Updating HTML index of packages in '.Library'
Making 'packages.html' ... done
> library("corehunter")
Loading required package: rJava