Rscript启动自定义R
Rscript启动自定义R
提问于 2016-02-10 11:17:32
您知道如何指定由Rscript**?** 启动的R二进制文件吗？
默认情况下，它指向/usr/lib/R/bin/R。
$ Rscript --verbose -e 'Sys.getenv("R_HOME")'
running
'/usr/lib/R/bin/R --slave --no-restore -e Sys.getenv("R_HOME")'
[1] "/usr/lib/R"我已经为/usr/bin/R配置了备选方案，并且可以在R.
对于R
$ update-alternatives --display R
R - auto mode
link currently points to /opt/R/3.2.3/usr/lib/R/bin/R
/opt/R/3.2.3/usr/lib/R/bin/R - priority 200
/usr/lib/R/bin/R - priority 100
Current 'best' version is '/opt/R/3.2.3/usr/lib/R/bin/R'.对于Rscript
$ update-alternatives --display Rscript
Rscript - auto mode
link currently points to /opt/R/3.2.3/usr/lib/R/bin/Rscript
/opt/R/3.2.3/usr/lib/R/bin/Rscript - priority 200
/usr/lib/R/bin/Rscript - priority 100
Current 'best' version is '/opt/R/3.2.3/usr/lib/R/bin/Rscript'.我找不到办法，如何强迫Rscript启动/usr/bin/R而不是/usr/lib/R/bin/R。
更新
@dirk建议使用环境PATH。尽管有一组PATH**，** Rscript 仍然使用 /usr/lib/R/bin/R
$ env | grep PATH
PATH=/opt/R/3.2.3/usr/lib/R/bin:/opt/python/conda/bin::/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games启动Rscript
$ Rscript --version && Rscript --verbose -e 'print("Hello")'
R scripting front-end version 3.2.3 (2015-12-10)
running
'/usr/lib/R/bin/R --slave --no-restore -e print("Hello")'
[1] "Hello"回答 1
Stack Overflow用户
发布于 2016-02-10 11:22:02
您需要来自两个构建的不同Rscript变体。我只是通过$PATH做的
edd@max:~$ Rscript --version
R scripting front-end version 3.2.3 (2015-12-10)
edd@max:~$ Rscript-devel.sh --version
R scripting front-end version 3.3.0 Under development (unstable) (2016-02-07 r70118)
edd@max:~$ 我可以管这叫什么。我选择用.sh结束它，因为它是一个shell包装器：
edd@max:~$ cat ~/bin/Rscript-devel.sh
#!/bin/bash
export R_LIBS_SITE=${R_LIBS_SITE-'/usr/lib/R-devel/lib/R/library:/usr/local/lib/R/site-library:/usr/lib/R/site-library::/usr/lib/R/library'}
export PATH="/usr/local/lib/R-devel/bin:$PATH"
Rscript "$@"
edd@max:~$ 编辑:虽然我不明白你为什么不能自己做：
edd@max:~$ Rscript --verbose -e '2+2'
running
'/usr/lib/R/bin/R --slave --no-restore -e 2+2'
[1] 4
edd@max:~$ Rscript-devel.sh --verbose -e '2+2'
running
'/usr/local/lib/R-devel/lib/R/bin/R --slave --no-restore -e 2+2'
[1] 4
edd@max:~$ 页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/35313704
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