使用 pandoc 通过 LaTeX 转换为 PDF 的表格间距问题

Question

我面临的问题是 R texreg() 似乎没有打破表格下方注释中的线条。此外，模型之间的边距也不会像htmlreg() 那样扩大，这会产生干净的结果。 \n 或 HTML 标签等手动中断不适用于“texreg”。有一部分是workaround from MichaelChirico，但必须更改texreg() 函数，但是当我们并排处理多个模型时，该方法似乎不尊重这种情况。

这是我正在使用的代码：

---
title: "Untitled"
author: "jaySf"
date: "13 Juni 2017"
output:
  pdf_document: default
  html_document: default
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r results="asis"}
library(car)
lm1 <- lm(prestige ~ income, data=Duncan)
lm2 <- lm(prestige ~ education, data=Duncan)
lm3 <- lm(prestige ~ income + education, data=Duncan)

library(texreg)
texreg(list(lm1, lm2, lm3), custom.note = "Lorem ipsum dolor sit amet, <br>consetetur sadipscing 
       elitr, sed diam. %stars.") # for pdf output

htmlreg(list(lm1, lm2, lm3), custom.note = "Lorem ipsum dolor sit amet, <br>consetetur sadipscing 
       elitr, sed diam. %stars.") # for html output
```

这是输出：

有人知道吗？任何帮助表示赞赏。

这里是生成的 LaTeX 代码：

\documentclass[]{article}
\usepackage{lmodern}
\usepackage{amssymb,amsmath}
\usepackage{ifxetex,ifluatex}
\usepackage{fixltx2e} % provides \textsubscript
\ifnum 0\ifxetex 1\fi\ifluatex 1\fi=0 % if pdftex
  \usepackage[T1]{fontenc}
  \usepackage[utf8]{inputenc}
\else % if luatex or xelatex
  \ifxetex
    \usepackage{mathspec}
  \else
    \usepackage{fontspec}
  \fi
  \defaultfontfeatures{Ligatures=TeX,Scale=MatchLowercase}
\fi
% use upquote if available, for straight quotes in verbatim environments
\IfFileExists{upquote.sty}{\usepackage{upquote}}{}
% use microtype if available
\IfFileExists{microtype.sty}{%
\usepackage{microtype}
\UseMicrotypeSet[protrusion]{basicmath} % disable protrusion for tt fonts
}{}
\usepackage[margin=1in]{geometry}
\usepackage{hyperref}
\hypersetup{unicode=true,
            pdftitle={Untitled},
            pdfauthor={jaySf},
            pdfborder={0 0 0},
            breaklinks=true}
\urlstyle{same}  % don't use monospace font for urls
\usepackage{color}
\usepackage{fancyvrb}
\newcommand{\VerbBar}{|}
\newcommand{\VERB}{\Verb[commandchars=\\\{\}]}
\DefineVerbatimEnvironment{Highlighting}{Verbatim}{commandchars=\\\{\}}
% Add ',fontsize=\small' for more characters per line
\usepackage{framed}
\definecolor{shadecolor}{RGB}{248,248,248}
\newenvironment{Shaded}{\begin{snugshade}}{\end{snugshade}}
\newcommand{\KeywordTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{\textbf{{#1}}}}
\newcommand{\DataTypeTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{{#1}}}
\newcommand{\DecValTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
\newcommand{\BaseNTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
\newcommand{\FloatTok}[1]{\textcolor[rgb]{0.00,0.00,0.81}{{#1}}}
\newcommand{\ConstantTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
\newcommand{\CharTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
\newcommand{\SpecialCharTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
\newcommand{\StringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
\newcommand{\VerbatimStringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
\newcommand{\SpecialStringTok}[1]{\textcolor[rgb]{0.31,0.60,0.02}{{#1}}}
\newcommand{\ImportTok}[1]{{#1}}
\newcommand{\CommentTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textit{{#1}}}}
\newcommand{\DocumentationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
\newcommand{\AnnotationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
\newcommand{\CommentVarTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
\newcommand{\OtherTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{{#1}}}
\newcommand{\FunctionTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
\newcommand{\VariableTok}[1]{\textcolor[rgb]{0.00,0.00,0.00}{{#1}}}
\newcommand{\ControlFlowTok}[1]{\textcolor[rgb]{0.13,0.29,0.53}{\textbf{{#1}}}}
\newcommand{\OperatorTok}[1]{\textcolor[rgb]{0.81,0.36,0.00}{\textbf{{#1}}}}
\newcommand{\BuiltInTok}[1]{{#1}}
\newcommand{\ExtensionTok}[1]{{#1}}
\newcommand{\PreprocessorTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textit{{#1}}}}
\newcommand{\AttributeTok}[1]{\textcolor[rgb]{0.77,0.63,0.00}{{#1}}}
\newcommand{\RegionMarkerTok}[1]{{#1}}
\newcommand{\InformationTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
\newcommand{\WarningTok}[1]{\textcolor[rgb]{0.56,0.35,0.01}{\textbf{\textit{{#1}}}}}
\newcommand{\AlertTok}[1]{\textcolor[rgb]{0.94,0.16,0.16}{{#1}}}
\newcommand{\ErrorTok}[1]{\textcolor[rgb]{0.64,0.00,0.00}{\textbf{{#1}}}}
\newcommand{\NormalTok}[1]{{#1}}
\usepackage{graphicx,grffile}
\makeatletter
\def\maxwidth{\ifdim\Gin@nat@width>\linewidth\linewidth\else\Gin@nat@width\fi}
\def\maxheight{\ifdim\Gin@nat@height>\textheight\textheight\else\Gin@nat@height\fi}
\makeatother
% Scale images if necessary, so that they will not overflow the page
% margins by default, and it is still possible to overwrite the defaults
% using explicit options in \includegraphics[width, height, ...]{}
\setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
\IfFileExists{parskip.sty}{%
\usepackage{parskip}
}{% else
\setlength{\parindent}{0pt}
\setlength{\parskip}{6pt plus 2pt minus 1pt}
}
\setlength{\emergencystretch}{3em}  % prevent overfull lines
\providecommand{\tightlist}{%
  \setlength{\itemsep}{0pt}\setlength{\parskip}{0pt}}
\setcounter{secnumdepth}{0}
% Redefines (sub)paragraphs to behave more like sections
\ifx\paragraph\undefined\else
\let\oldparagraph\paragraph
\renewcommand{\paragraph}[1]{\oldparagraph{#1}\mbox{}}
\fi
\ifx\subparagraph\undefined\else
\let\oldsubparagraph\subparagraph
\renewcommand{\subparagraph}[1]{\oldsubparagraph{#1}\mbox{}}
\fi

%%% Use protect on footnotes to avoid problems with footnotes in titles
\let\rmarkdownfootnote\footnote%
\def\footnote{\protect\rmarkdownfootnote}

%%% Change title format to be more compact
\usepackage{titling}

% Create subtitle command for use in maketitle
\newcommand{\subtitle}[1]{
  \posttitle{
    \begin{center}\large#1\end{center}
    }
}

\setlength{\droptitle}{-2em}
  \title{Untitled}
  \pretitle{\vspace{\droptitle}\centering\huge}
  \posttitle{\par}
  \author{jaySf}
  \preauthor{\centering\large\emph}
  \postauthor{\par}
  \predate{\centering\large\emph}
  \postdate{\par}
  \date{13 Juni 2017}


\begin{document}
\maketitle

\begin{Shaded}
\begin{Highlighting}[]
\KeywordTok{library}\NormalTok{(car)}
\NormalTok{lm1 <-}\StringTok{ }\KeywordTok{lm}\NormalTok{(prestige ~}\StringTok{ }\NormalTok{income, }\DataTypeTok{data=}\NormalTok{Duncan)}
\NormalTok{lm2 <-}\StringTok{ }\KeywordTok{lm}\NormalTok{(prestige ~}\StringTok{ }\NormalTok{education, }\DataTypeTok{data=}\NormalTok{Duncan)}
\NormalTok{lm3 <-}\StringTok{ }\KeywordTok{lm}\NormalTok{(prestige ~}\StringTok{ }\NormalTok{income +}\StringTok{ }\NormalTok{education, }\DataTypeTok{data=}\NormalTok{Duncan)}

\KeywordTok{library}\NormalTok{(texreg)}
\end{Highlighting}
\end{Shaded}

\begin{verbatim}
## Version:  1.36.23
## Date:     2017-03-03
## Author:   Philip Leifeld (University of Glasgow)
## 
## Please cite the JSS article in your publications -- see citation("texreg").
\end{verbatim}

\begin{Shaded}
\begin{Highlighting}[]
\KeywordTok{texreg}\NormalTok{(}\KeywordTok{list}\NormalTok{(lm1, lm2, lm3), }\DataTypeTok{custom.note =} \StringTok{"Lorem ipsum dolor sit amet, <br>consetetur sadipscing }
\StringTok{       elitr, sed diam. %stars."}\NormalTok{)}
\end{Highlighting}
\end{Shaded}

\begin{table}
\begin{center}
\begin{tabular}{l c c c }
\hline
 & Model 1 & Model 2 & Model 3 \\
\hline
(Intercept) & $2.46$       & $0.28$       & $-6.06$      \\
            & $(5.19)$     & $(5.09)$     & $(4.27)$     \\
income      & $1.08^{***}$ &              & $0.60^{***}$ \\
            & $(0.11)$     &              & $(0.12)$     \\
education   &              & $0.90^{***}$ & $0.55^{***}$ \\
            &              & $(0.08)$     & $(0.10)$     \\
\hline
R$^2$       & 0.70         & 0.73         & 0.83         \\
Adj. R$^2$  & 0.69         & 0.72         & 0.82         \\
Num. obs.   & 45           & 45           & 45           \\
RMSE        & 17.40        & 16.69        & 13.37        \\
\hline
\multicolumn{4}{l}{\scriptsize{Lorem ipsum dolor sit amet, <br>consetetur sadipscing 
       elitr, sed diam. $^{***}p<0.001$, $^{**}p<0.01$, $^*p<0.05$.}}
\end{tabular}
\caption{Statistical models}
\label{table:coefficients}
\end{center}
\end{table}

\begin{Shaded}
\begin{Highlighting}[]
\KeywordTok{htmlreg}\NormalTok{(}\KeywordTok{list}\NormalTok{(lm1, lm2, lm3), }\DataTypeTok{custom.note =} \StringTok{"Lorem ipsum dolor sit amet, <br>consetetur sadipscing }
\StringTok{       elitr, sed diam. %stars."}\NormalTok{)}
\end{Highlighting}
\end{Shaded}

Statistical models

Model 1

Model 2

Model 3

(Intercept)

2.46

0.28

-6.06

(5.19)

(5.09)

(4.27)

income

1.08***

0.60***

(0.11)

(0.12)

education

0.90***

0.55***

(0.08)

(0.10)

R2

0.70

0.73

0.83

Adj. R2

0.69

0.72

0.82

Num. obs.

45

45

45

RMSE

17.40

16.69

13.37

{Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam.
\emph{\textbf{p \textless{} 0.001, }p \textless{} 0.01, }p \textless{}
0.05.}


\end{document}

Answer 1

在这里我很高兴引用伟大的answer I received from Fran at https://tex.stackexchange.com/。

据他说，自定义注释在 LaTeX 代码中以 \multicolumn 结尾。因此我们不能使用像par 或\\ 这样的换行命令。但是我们可以用\parbox实现自动换行。如果我们仍然想要自定义换行符，我们可以使用四个反斜杠\\\\。为了更好地格式化，我们使用\\vspace{2pt}。为了给系数和 GOF 更多空间，我们可以在 R 块之前添加\renewcommand\arraystretch{1.3}（默认为 1）：

\renewcommand\arraystretch{1.3}  

```{r results="asis", echo = TRUE, comment = FALSE, message = FALSE}

library(texreg)
texreg(list(lm1, lm2, lm3), custom.note = "\\parbox{.4\\linewidth}
{\\vspace{2pt}Lorem ipsum dolor sit amet, consetetur sadipscing elitr, 
sed diam nonumy eirmod tempor invidunt ut labore et dolore magna 
aliquyam. \\\\ Lorem ipsum dolor sit amet, consetetur sadipscing elitr, 
sed diam nonumy eirmod tempor invidunt ut labore et dolore magna 
aliquyam. \\\\ %stars.}")

```