是否可以从RStudio中的R markdown(.Rmd)调用外部R脚本? [英] Is it possible to call external R script from R markdown (.Rmd) in RStudio?

问题描述

按照此R Sweave示例加载外部R脚本是相当简单的:

It's fairly trivial to load external R scripts as per this R Sweave example:

<<external-code, cache=FALSE>>=
read_chunk('foo-bar.R')
@

R Markdown是否可以做同样的事情?

Can the same be done for R Markdown?

推荐答案

是.

将其放在R Markdown文件的顶部:

Put this at the top of your R Markdown file:

```{r setup, echo=FALSE}
opts_chunk$set(echo = FALSE, cache=FALSE)
read_chunk('../src/your_code.R')
```

使用以下提示为knitr分隔代码(就像@yihui在示例):

Delimit your code with the following hints for knitr (just like @yihui does in the example):

## @knitr part1
plot(c(1,2,3),c(1,2,3))

## @knitr part2
plot(c(1,2,3),c(1,2,3))

现在，您可以在R Markdown文件中对代码段进行在线评估:

In your R Markdown file, you can now have the snippets evaluated in-line:

Title
=====

Foo bar baz...

```{r part1}
```

More foo...

```{r part2}
```

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