问题
It's fairly trivial to load external R scripts as per this R Sweave example:
<<external-code, cache=FALSE>>=
read_chunk('foo-bar.R')
@
Can the same be done for R Markdown?
回答1:
Yes.
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')
```
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))
In your R Markdown file, you can now have the snippets evaluated in-line:
Title
=====
Foo bar baz...
```{r part1}
```
More foo...
```{r part2}
```
来源：https://stackoverflow.com/questions/14796501/is-it-possible-to-call-external-r-script-from-r-markdown-rmd-in-rstudio