[Tex/LaTex] Sublime Latexing and Knitr on .RNW files : Send lines to R console for evaluation

knitrrsublime-text

I am using Sublime Text 3 and the Latexing package to apply Knitr to compile .Rnw files that contain both Latex and R code. Overall, it works well in that I can compile the .Rnw files into PDFs nicely. But, I am not able to get an important piece of functionality to work as compared to what I have in .R files.

Specifically, I am not able to send small pieces of code to R without compiling whole .Rnw file. I can compile the entire .Rnw file just fine, and that will of course evaluate all of the code chunks that I have knit into the document and create the PDF. I would like to be able to send small pieces of code to be evaluated in the R console without needing to compile the entire .Rnw file. (This is essentially what you can do in R Studio, and is useful for figuring out whether the code that I am including in the .Rnw file does what I want it to do without needing to compile the entire .Rnw file each time or without needing to copy/paste it into some other running R console). When I am just editing a .R document, I can do this via Command + Enter (using the Enhanced R package for Sublime) but this also doesn't work when editing a .Rnw document. Ideally, I'd like to be able to send it via REPL to the R console right within Sublime.

Are there ways to accomplish this in Sublime that I don't know about, or are they just features that have yet to be developed?

Best Answer

I had the same question, and I managed to fix it following this recommendation at least for latextools, it may be the same for latexing. /R/Main.sublime-menu file has to be edited:

(which in Ubuntu is in: ~/.config/sublime-text-3/Packages/SublimeREPL/config/R/Main.sublime-menu)

and the additional scope has to be modified in this way:

 "additional_scopes": ["tex.latex.knitr.ing"]

Option 1: Using `knit_child()` with inline R code

Say your setup is like the following. In the same directory, you have:

`graph.R`

## ---- graph
library(ggplot2)
CarPlot <- ggplot() +
    stat_summary(data= mtcars,
                 aes(x = factor(gear),
                     y = mpg
                 ),
                 fun.y = "mean",
                 geom = "bar"
                 )
CarPlot

`chapter1.Rnw`

Hey, look, a graph (Figure~\ref{fig:graph})!

<<graph, echo=FALSE, message=FALSE, fig.lp='fig:', out.width='.5\\linewidth', fig.align='center', fig.cap="A graph", fig.pos='h!'>>=
@

`main.Rnw`

\documentclass{article}

\begin{document}

<<external-code, echo=FALSE, cache=FALSE>>=
read_chunk('./graph.R')
@

\Sexpr{knit_child('chapter1.Rnw')}

\end{document}

Then, you can knit the main.Rnw file and compile the resulting .tex file with either pdflatex or xelatex.

The output is:

enter image description here

Note that you can also read the external .R file from the child .Rnw file.

So, the following would have worked just as well.

`chapter1-mod.Rnw`

<<external-code, echo=FALSE, cache=FALSE>>=
read_chunk('./graph.R')
@

Hey, look, a graph (Figure~\ref{fig:graph})!

<<graph, echo=FALSE, message=FALSE, fig.lp='fig:', out.width='.5\\linewidth', fig.align='center', fig.cap="A graph", fig.pos='h!'>>=
@

`main-mod.Rnw`

\documentclass{article}

\begin{document}

\Sexpr{knit_child('chapter1-mod.Rnw')}

\end{document}

Option 2: Using chunk option `child`

Assuming you have graph.R and chapter1.Rnw from above in the same directory, then your main.Rnw should be:

\documentclass{article}

\begin{document}

<<external-code, echo=FALSE, cache=FALSE>>=
read_chunk('./graph.R')
@

<<child-demo, child='chapter1.Rnw'>>=
@

\end{document}

Note that you can also read the external .R file from within the child document in this case, too.

So, assuming you had graph.R and chapter1-mod.Rnw from above in the same directory, then your main-mod.Rnw file should be:

\documentclass{article}

\begin{document}

<<child-demo, child='chapter1-mod.Rnw'>>=
@

\end{document}

[Tex/LaTex] LaTeXing, Sublime, LuaLaTeX and biber

The problem is not with LaTeXing or Sublime Text, but rather that you have some syntax errors in your bibliography file. Sometimes, running commands from the command line can help you see the problems. For instance, I tried running biber from the command line, and it told me there were syntax errors in your file. In particular, biber doesn't like the spaces in your entries; you need to surround those entries with " quote marks. The following bib file worked for me:

@mastersthesis{buschmann:2015,
    author = "Carl-Henrik Buschmann",
    title = "The Musical Conventions of Star Trek",
    subtitle = "The Search For Musical Syntax in Science Fiction",
    year = 2015,
    institution = "Høgskolen i Nesna",
}

Best Answer

Related Solutions

[Tex/LaTex] Building TeX file from knitr Rnw as child of larger parent TeX file to use R objects and output

Option 1: Using knit_child() with inline R code

graph.R

chapter1.Rnw

main.Rnw

chapter1-mod.Rnw

main-mod.Rnw

Option 2: Using chunk option child