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无法正确设置表头的间距

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无法正确设置表头的间距

我无法像在 LaTeX 中预期的那样调整表格标题的间距。

我的表格应该是这样的：

桌子应该是什么样子

但不幸的是，它在文档中显示如下：

在此处输入图片描述

标题不适合页面宽度，标题标签（例如“推荐商品数量”）占据了表格中的一行，因此占用了大量空间。解决方案的一部分是增加标题的高度。

我想尽可能减少表格上的空白，以使其清晰易读并适合页面。

以下是代码：

%Please add the following packages if necessary:
%\usepackage{booktabs, multirow} % for borders and merged ranges
%\usepackage{soul}% for underlines
%\usepackage[table]{xcolor} % for cell colors
%\usepackage{changepage,threeparttable} % for wide tables
%If the table is too wide, replace \begin{table}[!htp]...\end{table} with
%\begin{adjustwidth}{-2.5 cm}{-2.5 cm}\centering\begin{threeparttable}[!htb]...\end{threeparttable}\end{adjustwidth}
\begin{table}[!htp]\centering
\caption{Generated by Spread-LaTeX}\label{tab: }
\scriptsize
\begin{tabular}{lrrrrrrrr}\toprule
Execution environment &Number of recommended items &Dataset size &Total API endpoint execution time (seconds) &Endpoint execution latency &Recommendation execution &Data processing time (seconds) &Recommender algorithm execution time (seconds) \\\midrule
Local (API) &3 &20000263 &50.05549 &0.01421 &50.04128 &46.52477 &3.51651 \\
Local (Algorithm only) &3 &20000263 & & &53.21693 &48.71163 &4.50530 \\
Heroku (API) &3 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &3 &20000263 &MEMORY OVERFLOW & & & & \\
Local (API) &5 &20000263 &48.26075 &0.00957 &48.25118 &44.64684 &3.60434 \\
Local (Algorithm only) &5 &20000263 & & &64.97844 &60.10595 &4.87248 \\
Heroku (API) &5 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &5 &20000263 &MEMORY OVERFLOW & & & & \\
Local (API) &10 &20000263 &43.31767 &0.01661 &43.30106 &39.85879 &3.44227 \\
Local (Algorithm only) &10 &20000263 & & &44.16319 &40.60699 &3.55620 \\
Heroku (API) &10 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &10 &20000263 &MEMORY OVERFLOW & & & & \\
\multicolumn{1}{c}{AVERAGE} &45.78921 &0.01309 &50.78216 &46.78604 &3.99612 \\
& &STDV &3.4952824449691047 &0.00497738403016791 &8.855024886265406 &8.2442634610736 &0.6482773532436392 \\
\bottomrule
\end{tabular}
\end{table}

谢谢

答案1

即使在标准 LaTeX 布局中，您也可以放进表格，但您必须删除那些冗长的标题和长数字。例如，我用一些符号替换了标题，并在表格底部添加了每个符号代表什么的解释。我认为您不需要 15 位小数。最后，每个执行环境的数据大小似乎都相同，我会将其移动到其他地方（注释或标题）以避免重复。

将所有内容放在一起的一种方法是使用threeparttable。它有助于将表格环境分成三个部分：标题、表格本身和注释。siunitx将长数字四舍五入到小数点后几位；您仍然可以将数字保留在表格中并找出最适合您的选项。

在此处输入图片描述

\documentclass{article}
\usepackage{mathtools}
\usepackage{threeparttable}
\usepackage{booktabs}
\usepackage{siunitx}

\sisetup{
    round-mode = places,
    round-precision = 2,
    minimum-decimal-digits = 1,
}

\begin{document}
\begin{table}[!htp]\centering
    \small
    \begin{threeparttable}
        \caption{Generated by Spread-LaTeX}
        \label{tab: }
        \begin{tabular}{
            l
            r
            S[table-format=2.1, round-precision = 1]
            S[table-format=1.3, round-precision = 4]
            *2{S[table-format=2.1, round-precision = 1]}
            S[table-format=1.2, round-precision = 2]
        }
        \toprule
            $E$\textsubscript{ENV}\tnote{1}
                & $N$\textsubscript{REC}\tnote{2}   % etc.
                & {$T$\tnote{3}}
                & {$L$\tnote{4}}
                & {$R$\tnote{5}}
                & {$P$\tnote{6}}
                & {$A$\tnote{7}} \\
            \midrule
            Local (API)            &  3 & 50.05549 &  0.01421 & 50.04128 & 46.52477 & 3.51651 \\
            Local (Algorithm only) &  3 &     {--} &     {--} & 53.21693 & 48.71163 & 4.50530 \\
            Heroku (API)           &  3 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            PAW (API)              &  3 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            Local (API)            &  5 & 48.26075 &  0.00957 & 48.25118 & 44.64684 & 3.60434 \\
            Local (Algorithm only) &  5 &     {--} &     {--} & 64.97844 & 60.10595 & 4.87248 \\
            Heroku (API)           &  5 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            PAW (API)              &  5 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            Local (API)            & 10 & 43.31767 &  0.01661 & 43.30106 & 39.85879 & 3.44227 \\
            Local (Algorithm only) & 10 &     {--} &     {--} & 44.16319 & 40.60699 & 3.55620 \\
            Heroku (API)           & 10 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            PAW (API)              & 10 &     {MO} &     {--} &     {--} &     {--} &    {--} \\
            \midrule[\cmidrulewidth]
            \multicolumn{2}{r}{AVERAGE} & 45.78921 & 0.01309  & 50.78216 & 46.78604 &  3.99612 \\
               \multicolumn{2}{r}{STDV} &  3.4952824449691047 &  0.00497738403016791 &  8.855024886265406 & 8.2442634610736 & 0.6482773532436392 \\
            \bottomrule
        \end{tabular}
        Data size: \num[minimum-decimal-digits=0,round-precision=0]{20000263},\quad
        MO: Memory Overflow\par
        \medskip
        \tnote{1}~Execution environment,\quad%
        \tnote{2}~Number of recommended items,\quad%
        \tnote{3}~Total API endpoint execution time (seconds),\quad%
        \tnote{4}~Endpoint execution latency,\quad%
        \tnote{5}~Recommendation execution,\quad%
        \tnote{6}~Data processing time (seconds),\quad%
        \tnote{7}~Recommender algorithm execution time (seconds)
    \end{threeparttable}
\end{table}

\end{document}

答案2

欢迎，我为你准备了一个开始

\documentclass[12pt, A4]{article}
\usepackage[utf8]{inputenc}
\usepackage{fourier} 
\usepackage{array}
\usepackage{makecell}
\usepackage{adjustbox}

\renewcommand\theadalign{bc}
\renewcommand\theadfont{\bfseries}
\renewcommand\theadgape{\Gape[4pt]}
\renewcommand\cellgape{\Gape[4pt]}

\begin{document}

\setlength\extrarowheight{3pt}

\begin{table}[ht]
\centering
\begin{adjustbox}{width=1\textwidth}
\small

\begin{tabular}{|c|clc|c|c|c|c|c|}
\hline
\thead{Execution \\ environment} & \thead{Number of \\ recomended  items} & \thead{Data size} & \thead{Total endpoint} & \thead{execution  time\\ (seconds)} &  \thead{Endpoint execution} & \thead{Data processing  \\time} & \thead{Recommender \\ Algorith time \\ (seconds)} \\ \hline
Local (API) &3 &20000263 &50.05549 &0.01421 &50.04128 &46.52477  &3.51651 \\
Local (Algorithm only) &3 &20000263 & & &53.21693 &48.71163 &4.50530  \\
Heroku (API) &3 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &3 &20000263 &MEMORY OVERFLOW & & & & \\
Local (API) &5 &20000263 &48.26075 &0.00957 &48.25118 &44.64684  &3.60434 \\
Local (Algorithm only) &5 &20000263 & & &64.97844 &60.10595 &4.87248  \\
Heroku (API) &5 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &5 &20000263 &MEMORY OVERFLOW & & & & \\
Local (API) &10 &20000263 &43.31767 &0.01661 &43.30106 &39.85879  &3.44227 \\
Local (Algorithm only) &10 &20000263 & & &44.16319 &40.60699 &3.55620  \\
Heroku (API) &10 &20000263 &MEMORY OVERFLOW & & & & \\
PAW (API) &10 &20000263 &MEMORY OVERFLOW & & & & \\
\multicolumn{1}{c}{AVERAGE} &45.78921 &0.01309 &50.78216 &46.78604  &3.99612 \\
& &STDV &3.4952824449691047 &0.00497738403016791 &8.855024886265406  &8.2442634610736 &0.6482773532436392 \\
    \hline
    \end{tabular}
    \end{adjustbox}

        \end{table} 

        \end{document}

有几行额外的代码是不需要的，但我只是使用了我的旧表，希望它能有所帮助。

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