在 R 版本 3.0.2 上安装 Rtools

Question

我已经为 R 安装了 devtools，但是当我调用库时：

library(devtools)

我得到以下输出：

WARNING: Rtools is required to build R packages, but is not currently installed.
Please download and install Rtools 3.1 from http://cran.r-project.org/bin/windows/Rtools/ and then run find_rtools().

于是我执行了以下代码：

install.packages("Rtools", repos = "http://cran.r-project.org/bin/windows/Rtools/")

我得到以下输出：

Installing package into ‘C:~/Documents/R/win-library/3.0’
(as ‘lib’ is unspecified)
Warning: unable to access index for repository http://cran.r-project.org/bin/windows/Rtools/bin/windows/contrib/3.0
Warning message:
package ‘Rtools’ is not available (for R version 3.0.2)

如果能将 Rtools 安装到我的机器上，我将不胜感激，这样我就可以调用 devtools 库。谢谢！

Answer 1

Rtools 不是一个包。见这里：https://cran.r-project.org/bin/windows/Rtools/