从 Windows 命令提示符运行 R
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running R from windows command prompt
提问by babu
I have a R program in a txt file say "functions.txt".
I load the "functions.txt"file the R using source("function.txt")and then call functions f1(), f2()etc. which are declared and defined within
"function.txt"file.
I also need to load a couple of R libraries using library()before I can use f1(), f2()etc.
我在 txt 文件中有一个 R 程序说"functions.txt"。
我加载"functions.txt"使用文件将R source("function.txt")，然后调用函数f1()，f2()等，其被声明和内定义
"function.txt"文件。
我还需要在使用library()之前加载几个 R 库f1()，f2()等等。
My question is can I acheive all this (i.e. calling function f1()and f2()) from the windows prompt without opening the R environment ?
我的问题是我可以在不打开 R 环境的情况下从 Windows 提示中实现所有这些（即调用函数f1()和f2()）吗？
So essentially I want to
所以基本上我想
- load the R libraries I need to run
f1(),f2()etc. - load the
function.txtfile - run the individual functions f1() etc.
- record the result
- 加载将R库我需要运行
f1()，f2()等等。 - 加载
function.txt文件 - 运行单个函数 f1() 等。
- 记录结果
all from from the command promt of windows c:\>
全部来自 Windows 的命令提示符 c:\>
I have windows version of R installed in my computers.
It would be very kind of anyone to give a detailed answer as I am not very computer savvy.
我的计算机上安装了 Windows 版本的 R。
任何人都可以给出详细的答案，因为我不是很精通计算机。
Regards
问候
回答by Dirk Eddelbuettel
Bart's post is correct, but this can be done simpler. If the code
Bart 的帖子是正确的，但这可以更简单地完成。如果代码
f1 <- function() {
print("A")
}
f2 <- function() {
print("B")
}
f1()
f2()
is in a file 'myRcode.R'; then
在文件“myRcode.R”中；然后
Rscript myRcode.R
will load and execute it, including the two function calls.
将加载并执行它，包括两个函数调用。
Rscript.exeis in the same directory as R.exe-- which one may have to add to the $PATH.
Rscript.exe与R.exe-位于同一目录中- 可能必须将其添加到$PATH.
回答by Bart Kiers
The following "works on my machine" (not Windows though, but it should...):
以下“适用于我的机器”（虽然不是 Windows，但它应该......）：
If your functions.txtlooks like:
如果你functions.txt看起来像：
f1 <- function()
{
print("A")
}
f2 <- function()
{
print("B")
}
the command:
命令：
Rscript -e "source('functions.txt');f1();f2()" > out.txt
should create the file out.txtcontaining:
应该创建out.txt包含以下内容的文件：
[1] "A"
[1] "B"
回答by Bill Yarberry
Here's a command line script, based on code above:
这是一个命令行脚本，基于上面的代码：
d:\misc2\bin\Rscript.exe d:\r_code\mycode.r
Using Windows 7, I ran it as a .bat file. Works fine. Thanks for the tip. (of course, these are just my particular subdirectories)
使用 Windows 7，我将它作为 .bat 文件运行。工作正常。谢谢你的提示。（当然，这些只是我的特定子目录）
