Rmarkdown knitr doesn't process code chunks when generating preview or html doc (and only shows code literals)

[cderv]

@pwaltman

If I opt to save it as dbg.html, Rstudio doesn't process the embedded R code chunks when it saves the file. (However, if I save it as an .Rmd when I choose to knit the unsaved doc, the html file is produced as expected (containing the results of the code chunks)).

Oh that is why. This is because knitr is seing a HTML file as source, and it won't process the code chunk syntax used as markdown. For knitting a HTML file, there is another syntax. But .Rmd is the recommended way.

So conclusion: the file to render needs to be a .Rmd file.

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