编织块选项可控制行距，输出中的字体大小 [英] knitr chunk options to control line spacing, font size in output

问题描述

我想更好地控制用于 代码块和R通过LaTeX输出.使用默认的render_latex()，我可以 设置全局使用(在我的前提下)

I'd like to have more control over the font size and line spacing used for code chunks and R output via LaTeX. Using the default render_latex(), I see I can set both globally using (in my premable)

\renewenvironment{knitrout}{\small\renewcommand{\baselinestretch}{.85}}{} 
...
\begin{document}

但是，说有一些块我想用\ footnotesize打印，或者用其他一些自定义 道路.我知道我可以使用LaTeX小组执行此操作，但不能使用knitrout环境执行此操作:

But, say there are chunks I'd like to print in \footnotesize, or customize in some other way. I know I can do this with a LaTeX group, but not with the knitrout environment:

{\small
\renewcommand{\baselinestretch}{.85}
<<arth-csv, eval=FALSE, results='asis'>>=
ID,Treatment,Sex,Age,Improved
57,Treated,Male,27,Some
46,Treated,Male,29,None
...
71,Placebo,Female,68,Some
1,Placebo,Female,74,Marked
@
}

使用render_listings()和Listings包这样做会更容易吗?

Would it be easier to do this using render_listings() and the listings package?

我可以使用自定义的块选项和块挂钩来实现更好的控制吗?

Can I use custom chunk options and chunk hooks to achieve better control?

推荐答案

为部分回答我自己的问题，我发现了knitr size=块选项，该选项在AFAIK中有效，仅适用于 render_latex()和突出显示包.因此，要在脚注大小中设置较大的输出，我可以使用

To partially answer my own question, I discovered the knitr size= chunk option, which works, AFAIK, only with render_latex() and the highlight package. Thus, for a wide output to be set in footnote size, I can use

<<tv3, size="footnotesize">>=
TV <- TV[,,1:3,]     # keep only ABC, CBS, NBC
TV <- TV[,,,3]       # keep only Persist -- now a 3 way table
structable(TV)
@

此外，我上面在results='asis'中使用的示例应该仅在verbatim LaTeX环境中完成， 不像代码块那样.即使我使用过eval=FALSE，knitr也会尝试解析文本并生成警告.

Also, the example I used above with results='asis' should have been done just with a verbatim LaTeX environment, not as as code chunk. Even though I had used eval=FALSE, knitr tries to parse the text and generates a warning.

{\footnotesize
\renewcommand{\baselinestretch}{.85}
\begin{verbatim}
ID,Treatment,Sex,Age,Improved
57,Treated,Male,27,Some
46,Treated,Male,29,None
...
71,Placebo,Female,68,Some
1,Placebo,Female,74,Marked
\end{verbatim}
}

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