How to include external R file with RMarkdown?

Asked Apr 29 '15 at 08:11

Active Apr 29 '15 at 08:18

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Let's say I have (1) a Markdown file with some text and R code (code should not be evaluated, just printed out) and I have (2) an R file with some user-defined functions, which, again, should not be evaluated but only printed out.

Now, I want to combine those two as an RMarkdown article (to place those user-defined function (2) in some kind of Appendix). I know how to include Markdown files (child='FILENAME.md'), but how to include an external R file with syntax highlighting?

Yes, I know, I can just copy the contents of that R file (2) to my main Markdown file (1), add some {r}, and everything will be fine. Except that I still want to keep those two separate...

Is it possible?

edited Apr 29 '15 at 08:18

asked Apr 29 '15 at 08:11

A S

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Good question. I want to know too. – Mike Wise Apr 29 '15 at 08:23
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Thanks, @MikeWise, I was afraid I failed to express the problem clear enough :) (English is not my native language). – A S Apr 29 '15 at 08:26
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[This post](http://stackoverflow.com/questions/14796501/is-it-possible-to-call-external-r-script-from-r-markdown-rmd-in-rstudio) could be relevant – zx8754 Apr 29 '15 at 08:39
Thanks, @zx8754, that indeed helped. – A S Apr 29 '15 at 09:11
Did it work, if yes mark it as duplicate? – zx8754 Apr 29 '15 at 09:25

How to include external R file with RMarkdown?

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