[help] compatibility with sweave/knitr ?

[jrdavalos]

Help

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Description

Hi, I'm using tar_render() at the end of my pipeline but I'm not satisfied with the rendering with Rmarkdown. I'm used to make LaTeX documents and I'd like to use Sweave/knitr at the end of the pipeline. Is this possible somehow?

[wlandau]

Please see tar_knit(): https://docs.ropensci.org/tarchetypes/reference/tar_knit.html

[jrdavalos]

Thanks, but there is something I don't understand. I have my .Rnw file and the pipeline worked (no errors), but there is no output at all. tar_knit() seems to work like tar_render() so I don't understand why it does that.

[wlandau]

Do you have a reprex?

On my end tar_make() produces a file.tex file with this pipeline:

# _targets.R
library(targets)
library(tarchetypes)
list(
  targets::tar_target(data, data.frame(x = seq_len(26), y = letters)),
  tarchetypes::tar_knit(report, "file.Rnw")
)

file.Rnw:

\documentclass{article}

\title{Minimal example}
\author{You}
\date{\today}

\begin{document}

\maketitle

Data:

<<minimal-example, echo=TRUE>>=
targets::tar_read(data)
@

\end{document}

[jrdavalos]

Well, after a closer look I found the .tex : it was in the main folder and not in the subfolder with the Rnw ! Thanks.
Last question : do you know if there is a way to execute the .tex inside the pipeline ?

[wlandau-lilly]

You could add a downstream target that depends on report and runs a LaTeX system call.