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如何在表格的最后一个元素之前创建 \hline

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如何在表格的最后一个元素之前创建 \hline

我正在尝试使用 csvsimple-l3 在表格的最后一行和最后一个元素之前的一行之间添加一行。重申一下，我想要 9 和 10 之间的一行 - 有没有什么巧妙的解决方案？

我的csv文件：

101.6,0.08,0.08
101.4,-0.12,0.12
101.5,-0.02,0.02
101.4,-0.12,0.12
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.52,,0.07

我的 .tex 表格：

\section{Tabuľka: }
\begin{center}
\csvreader[
tabular = cccc,
table head = & $\displaystyle\frac{a}{mm}$ & $\displaystyle\frac{\Delta a}{mm}$ & $\di
splaystyle\frac{|\Delta a|}{mm}$\vspace{5pt}\\\hline,
table foot = \hline
]{Tabulky/a-dimenzia.csv}{}
{\thecsvrow & \csvcoli & \csvcolii & \csvcoliii }
\end{center}
\end{document}

桌子图片：

答案1

一旦知道行数，就可以添加条件\hline。

您如何自动执行此操作？您可以读取 csv 文件而无需排版任何内容并存储行数。

\begin{filecontents*}{\jobname.csv}
101.6,0.08,0.08
101.4,-0.12,0.12
101.5,-0.02,0.02
101.4,-0.12,0.12
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.52,,0.07
\end{filecontents*}

\documentclass{article}
\usepackage{amsmath}
\usepackage{csvsimple-l3}
\usepackage{booktabs}
\usepackage{siunitx}

\begin{document}

\csvreader[
tabular = cccc,
table head = & $\displaystyle\frac{a}{mm}$ & $\displaystyle\frac{\Delta a}{mm}$ & 
$\displaystyle\frac{|\Delta a|}{mm}$\vspace{5pt}\\\hline,
table foot = \hline
]{\jobname.csv}{}
{\ifnum\thecsvrow=10 \hline\fi \thecsvrow & \csvcoli & \csvcolii & \csvcoliii }
%%
\qquad
%%
\csvreader[
  before reading = \sisetup{table-number-alignment=center},
  tabular = cccc,
  table head = \toprule & {$\dfrac{a}{\mathrm{mm}}$} & {$\dfrac{\Delta a}{\mathrm{mm}}$} &
    {$\dfrac{|\Delta a|}{\mathrm{mm}}$}\\\addlinespace\midrule,
    table foot = \bottomrule
]{\jobname.csv}{}
{%
  \ifnum\thecsvrow=10 \midrule\fi
  \thecsvrow &
  \tablenum[table-format=3.2]{\csvcoli} &
  \tablenum[table-format=-1.2]{\csvcolii} &
  \tablenum[table-format=1.2]{\csvcoliii} 
}

\end{document}

我给出了表格的两种实现方式，但我还建议删除“mm”分母，并在表格标题中添加“长度以毫米为单位”。

在此处输入图片描述

答案2

这是一个{NiceTabular}使用 的解决方案nicematrix。

数组最后一行之前的规则是 Tikz 在构建数组后，使用单元格、列和行下创建的 PGF/Tikz 节点绘制的nicematrix。

\begin{filecontents*}[overwrite]{\jobname.csv}
101.6,0.08,0.08
101.4,-0.12,0.12
101.5,-0.02,0.02
101.4,-0.12,0.12
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.5,,0.07
\end{filecontents*}
%%%
\documentclass{article}
\usepackage{csvsimple} 
\usepackage{nicematrix}
\usepackage{tikz}
\usepackage{siunitx}

\begin{document}

\section{Tabuľka: }

$\begin{NiceArray}{ccSc}[cell-space-limits=2pt]
  & \displaystyle\frac{a}{mm}
  & \displaystyle\frac{\Delta a}{mm}
  & \displaystyle\frac{|\Delta a|}{mm} \\ \hline
  \csvreader[late after line = \\]
    {\jobname.csv}{}
    {\thecsvrow & \csvcoli & \csvcolii & \csvcoliii}
  \hline
\CodeAfter
  \tikz \draw (\arabic{iRow}-|1) -- (\arabic{iRow}-|last) ; 
\end{NiceArray}$

\end{document}

由于 PGF/Tikz 节点，您需要进行多次编译。

上述代码的输出

答案3

以下解决方案\createtable使用两个参数来制作宏：csv文件的名称和表头。此宏csv首先通过\read原始文件读取文件，将数据保存到\csvdata并计算行数。然后\csvdata由宏再次读取\prepcsvdata，用替换行尾\cr，用替换逗号&并在最后一行之前插入\noalign{\cvsrule}。最后，通过打印表格\halign。

\newread\csvin
\newcount\csvlines

\def\csvcount{%
   \ifeof\csvin \else
      \read\csvin to\csvline
      \if^\csvline^\else \global\advance\csvlines by1 \fi
      \global\expandafter\addto\expandafter\csvdata\expandafter{\csvline\^^M}%
      \expandafter \csvcount
   \fi
}
\def\prepcsvdata #1\^^M{%
   \advance\csvlines by-1
   \edef\replline{\the\numexpr\csvtotlines-\csvlines&}%
   \ifnum\csvlines=0 \def\replline{&}\fi
   \replcommas#1,\relax
   \expandafter\addto\expandafter\csvdata\expandafter{\replline\cr}%
   \ifnum\csvlines=1 \addto\csvdata{\noalign{\csvrule}}\fi
   \ifnum\csvlines=0 \else \expandafter\prepcsvdata \fi
}
\def\replcommas #1,#2{\addto\replline{#1}%
   \ifx\relax#2 \else \addto\replline{&}\expandafter\replcommas\fi #2}
\def\csvrule{\kern1ex\hrule\kern1ex}
\long\def\addto#1#2{\expandafter\def\expandafter#1\expandafter{#1#2}}

\def\createtable#1#2{%
   \openin\csvin=#1
   \ifeof\csvin \errmessage{file "#1" not found}\fi
   \csvlines=0 \def\csvdata{}%
   {\endlinechar=-1 \csvcount}
   \closein\csvin
   \chardef\csvtotlines=\csvlines
   \edef\csvdata{\expandafter}\expandafter\prepcsvdata\csvdata
   % table itself:
   \vbox{\halign{&\kern.5em \hfil$\displaystyle{##}$\hfil\kern.5em \cr
      &#2\cr \noalign{\csvrule}
      \csvdata
   }}%
}

% test:
\createtable {dimenzia.csv}
             {a\over\rm mm & \Delta\over\rm mm & |\Delta a|\over\rm mm}

该宏仅使用 TeX 基元和基本纯 TeX 宏。您可以在纯 TeX、LaTeX 或其他任何环境中使用它。

答案4

一种方法是手动创建表格，包括带有规则的页眉和页脚（最后一行），然后csvreader仅循环遍历数据

在此处输入图片描述

\begin{filecontents*}{\jobname.csv}
101.6,0.08,0.08
101.4,-0.12,0.12
101.5,-0.02,0.02
101.4,-0.12,0.12
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
101.6,0.08,0.08
101.5,-0.02,0.02
\end{filecontents*}
%%%
\documentclass{article}
\usepackage{csvsimple} 

\begin{document}
\section{Tabuľka: }

\begin{tabular}{cccc}
  & $\displaystyle\frac{a}{mm}$
  & $\displaystyle\frac{\Delta a}{mm}$
  & $\displaystyle\frac{|\Delta a|}{mm}$\vspace{5pt} \\ \hline
  \csvreader[late after line = \\,no head]
    {\jobname.csv}{}
    {\thecsvrow & \csvcoli & \csvcolii & \csvcoliii}
  \hline
  \stepcounter{csvrow}%
  \thecsvrow & 101.5 & & 0.07 \\ \hline
\end{tabular}
\end{document}

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