嵌入但不在Rmarkdown中运行R脚本 [英] Embed but don't run R scripts in Rmarkdown

问题描述

我正在Rmarkdown中写一篇有关正在进行的项目的论文.我在编写文件时有自己的.Rmd文件.

I am writing a paper in Rmarkdown about an ongoing project. I have my own .Rmd file where I am writing it.

同时，我在R中有几个脚本，这些脚本存储在扩展名为.R的不同文件中.

At the same time, I have several scripts in R stored in different files with the extension .R.

在论文的不同部分中，我需要描述这些R脚本中的内容，因此需要在不运行该脚本的情况下将脚本代码嵌入Rmarkdown文件中.

In different parts of the paper I need to describe what it is in those R scripts, so that I need to embed the codes of the scripts in the Rmarkdown file without running it.

总结:

• 文件夹1
  • paper.Rmd
  • script1.R
  • script2.R
  • Folder 1
    • paper.Rmd
    • script1.R
    • script2.R

    我尝试了这个块，但没有成功:

    I tried this chunk with no success:

    ```{r eval=F}
    source("script1.R")
    
    

    推荐答案

    一种选择是在脚本上使用readLines而不是采购它.

    One option would be to readLines on the script instead of sourcing it.

    考虑一下这个简单的R脚本:

    Consider this trivial R script:

    writeLines("foo <- function(x) x + 2", con = "foo.R")
    system("cat foo.R")
    # foo <- function(x) x + 2
    

    使用readLines代替使用source.

    exp <- readLines("foo.R")
    

    现在您有了Rscript的文本.您可以使用cat进行打印.

    Now you have the text of the Rscript. You could use cat to print it.

    cat(exp)
    #foo <- function(x) x + 2
    

    或者您可以对其进行评估.

    Or you could evaluate it.

    eval(parse(text=exp))
    foo(2)
    #[1] 4
    

    这篇关于嵌入但不在Rmarkdown中运行R脚本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！