从源代码安装 R 包，无需更改 PATH (Windows)
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Install R package from source, without changing PATH (Windows)
提问by screechOwl
I'm trying to install package rpartfor R-2.14.0 on Windows 7, but I get the warning:
我正在尝试rpart在 Windows 7 上为 R-2.14.0安装软件包，但收到警告：
package ‘rpart' is not available (for R version 2.14.0)
包“rpart”不可用（对于 R 版本 2.14.0）
So I download the tar.gz file from the package page. I have installed Rtools but I disabled all the options, including the one that changes the PATH. Then I do the following:
所以我从包页面下载了 tar.gz 文件。我已经安装了 Rtools，但我禁用了所有选项，包括更改 PATH 的选项。然后我执行以下操作：
> install.packages("C:/rpart_3.1-50.tar.gz", type="source")
Installing package(s) into ‘C:/Users/backupSam/Documents/R/win-library/2.14'
(as ‘lib' is unspecified)
inferring 'repos = NULL' from the file name
* installing *source* package 'rpart' ...
** libs
*** arch - i386
ERROR: compilation failed for package 'rpart'
* removing 'C:/Users/backupSam/Documents/R/win-library/2.14/rpart'
* restoring previous 'C:/Users/backupSam/Documents/R/win-library/2.14/rpart'
Warning messages:
1: running command 'C:/PROGRA~1/R/R-214~1.0/bin/i386/R CMD INSTALL -l "C:/Users/backupSam/Documents/R/win-library/2.14" "C:/rpart_3.1-50.tar.gz"' had status 1
2: In install.packages("C:/rpart_3.1-50.tar.gz", type = "source") :
installation of package ‘C:/rpart_3.1-50.tar.gz' had non-zero exit status
Any suggestions?
有什么建议？
回答by Joshua Ulrich
Since you have to set the PATH, but you're hesitant to do so because you're afraid you may hose something up, you can do it temporarily in your R session via:
由于您必须设置PATH，但您又犹豫是否这样做，因为您担心可能会弄脏东西，您可以通过以下方式在 R 会话中临时设置：
pathRtools <- paste(c("c:\Rtools\bin",
"c:\Rtools\MinGW\bin",
"c:\MiKTeX\miktex\bin",
"c:\R\bin\i386",
"c:\windows",
"c:\windows\system32"), collapse=";")
Sys.setenv(PATH=paste(pathRtools,Sys.getenv("PATH"),sep=";"))
