knitr – Page 4 – Make Me Engineer

Using loops with knitr to produce multiple pdf reports… need a little help to get me over the hump

July 15, 2022 by Tarik

You don’t need to re-define the data in the .Rnw file and I think the warning is coming from the fact that you are putting the output name together with Hospital (the full vector of hospitals) rather than hosp (the loop index). Following your example, testingloops.Rnw would be \documentclass[10pt]{article} \usepackage[margin=1.15 in]{geometry} <<loaddata, echo=FALSE, message=FALSE>>= subgroup … Read more

How to combine two RMarkdown (.Rmd) files into a single output?

July 13, 2022 by Tarik

August, 2018 update: This answer was written before the advent of bookdown, which is a more powerful approach to writing Rmarkdown based books. Check out the minimal bookdown example in @Mikey-Harper’s answer! When I want to break a large report into separate Rmd, I usually create a parent Rmd and include the chapters as children. … Read more

Figure position in markdown when converting to PDF with knitr and pandoc

July 10, 2022 by Tarik

I present an alternative solution. Instead of inserting [H] symbols into a latex document in a post-hoc manner, I suggest redefining the figure environment to ignore any position arguments and use [H]. To do this, create a .tex file in the same directory as the .Rmd file which redefines the figure environment, and update the … Read more

Difference: “Compile PDF” button in RStudio vs. knit() and knit2pdf()

July 7, 2022 by Tarik

First of all, I think this question is easier to answer if you limit the scope to the “Compile PDF” button, because the “Knit HTML” button is a different story. “Compile PDF” is only for Rnw documents (R + LaTeX, or think Sweave). I’ll answer your question following the three points you suggested: Currently RStudio … Read more

YAML current date in rmarkdown

June 18, 2022 by Tarik

This is a little bit tricky, but you just need to make the date field valid in YAML by quoting the inline R expression, e.g. date: “`r format(Sys.time(), ‘%d %B, %Y’)`” Then the parsing error will be gone, and the date will be generated in the markdown output so Pandoc can use the value from … Read more