How to integrate R code in markdown and then insert the plots in the rendered document?
I use the blogging engine Hakyll (http://jaspervdj.be/hakyll/). It uses Pandoc as a back-end for rendering blog posts written in markdown.
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There's even a special markdown flavor named R-markdown. It can be rendered to plain markdown using the knitr package.
Apparently the link provided directs to a page about R-markdown V2 which has its own package rmarkdown.
ziggystar
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I know about R-markdown, but how to render it in Hakyll? If I understand it's a preprocessor of plain markdown? Can it be plugged to Pandoc? – cdupont Dec 09 '14 at 12:49
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@cdupont You will have to use R at one point or the other to create the plots. Why not use R-markdown as it is intended? Judging from the main-page of Hakyll you can simply create a new compile rule to run `*.Rmd` files through R. before feeding the result to pandoc. – ziggystar Dec 09 '14 at 13:13
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@ziggystart Great, I'll try that! If that works I 'll post the code. – cdupont Dec 09 '14 at 14:01
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@cdupont I don't understand your edit. You don't `require` `rmarkdown` for using the `knit` command. It provides the `rmarkdown::render` function, why do you load both packages when using only `knit`? – ziggystar Dec 15 '14 at 20:58
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@ziggystart: OK, I didn't know. I wanted to add a method for use with Hakyll. – cdupont Dec 16 '14 at 23:19
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FYI I published a package that allows to compile Rmd posts in Hakyll: https://hackage.haskell.org/package/hakyll-R
cdupont
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For the moment I write my blog post in Rmarkdown, and transform it in plain markdown with:
Rscript -e "library(knitr); knit('myPost.Rmd')
Then Hakyll can process it. More details here: http://www.corentindupont.info/blog/posts/Programming/2014-12-10-This-Blog.html. I would be glad to know if this command can be integrated directly into Hakyll.
cdupont
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