从R数据帧生成LaTeX输出 [英] Generating LaTeX output from R data frame

问题描述

我正在Ubuntu上运行R v2.14.1.我正在编写一个脚本，该脚本将生成一个数据框，该数据框代表一个结果表.

I am running R v2.14.1 on Ubuntu. I am writing a script that will generate a data frame, which represents a table of results.

我想将此表"输出为.tex文件，以便创建学术出版物"质量表进行打印.我听说过Sweave(并阅读了一些有关Sweave的概述文档)-所以我认为这是继续进行的方法.但是，尽管如此，我实际上还没有看到Sweave将数据帧输出为tex文件的示例-到目前为止，我所看到的所有Sweave示例似乎都是人为的，并不是可以构建的.

I would like to output this 'table' as a .tex file so that I can create an 'academic publication' quality table, for printing. I have heard of Sweave (and read some overview docs about Sweave) - so I think this is the way to proceeed. However having said that I have not actually seen an example where Sweave outputs a dataframe as a tex file - all of the Sweave examples I have seen so far, seem contrived and not something that I can build upon.

我是否可以遵循一些准则来从数据帧输出tex?另外，如果我直接从R脚本中构建TeX字符串并将其保存到文件，会更简单(更直接)吗? (我不清楚，Sweave除了手动手动"构建TeX字符串外还提供什么.)

Are there some guidelines I can follow, to output tex from a dataframe? Also, will it be simpler (more straight forward), if I built the TeX string directly from my R script and saved the string to file? (It is not clear to me, what Sweave offers over and above manually building the TeX string 'manually').

推荐答案

xtable 软件包提供了一些有关如何生成表的示例-请参见插图.编写块时，请确保将块设置为<<results=tex>>.请参见编织示例，例如，

The xtable package has some examples of how to generate tables - see vignette. When you're writing a chunk, make sure you set the chunk to <<results=tex>>. See Sweave example, for instance, this.

这就是我输出data.frame的方式.

This is how I would output a data.frame.

<<results=tex>>
    xtable(my.data.frame)
@

原始结果看起来像这样:

And the raw result would looks something like this:

> xtable(my.data.frame)
% latex table generated in R 2.14.1 by xtable 1.6-0 package
% Tue Feb 14 10:03:03 2012
\begin{table}[ht]
\begin{center}
\begin{tabular}{rllr}
  \hline
 & p & q & r \\ 
  \hline
1 & condition\_a & grp\_1 &   3 \\ 
  2 & condition\_a & grp\_1 &   3 \\ 
  3 & condition\_a & grp\_1 &   4 \\ 
  4 & condition\_a & grp\_1 &   1 \\ 
  5 & condition\_b & grp\_1 &   4 \\ 
  6 & condition\_b & grp\_1 &   3 \\ 
  7 & condition\_b & grp\_1 &   5 \\ 
  8 & condition\_b & grp\_1 &   5 \\ 
  9 & condition\_a & grp\_2 &   4 \\ 
  10 & condition\_a & grp\_2 &   1 \\ 
  11 & condition\_a & grp\_2 &   1 \\ 
  12 & condition\_a & grp\_2 &   1 \\ 
  13 & condition\_b & grp\_2 &   5 \\ 
  14 & condition\_b & grp\_2 &   1 \\ 
  15 & condition\_b & grp\_2 &   5 \\ 
  16 & condition\_b & grp\_2 &   2 \\ 
   \hline
\end{tabular}
\end{center}
\end{table}

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