[Tex/LaTex] Centering text in a table

horizontal alignmenttablestexmaker

I have a table which needs to expand to the width of my page and I do this by

\begin{table}[H]
\centerline{
\begin{tabularx}{\textwidth}{|X|X|}
\hline
\textbf{Number} & \textbf{Probability} \\ \hline
0 & 100 \% \\ \hline
998.13 & 60 \% \\ \hline
1996.26 & 31.37 \% \\ \hline
2994.39 & 16.11 \% \\ \hline
3992.52 & 8.26 \% \\ \hline
4990.64 & 4.23 \% \\ \hline
5988.77 & 2.17\% \\ \hline
6986.90 & 1.11\% \\ \hline
7828.46 & 0.63\% \\ \hline
\end{tabularx}
}
\caption{} 
\end{table}

however, the text is not becoming centered in the table , it is left justified. How can I center the text and get the text to be centered? (As I only managed one at a time)

Best Answer

Nice version

\documentclass{article}
\usepackage{array}
\usepackage{booktabs}
\usepackage{caption}
\usepackage{siunitx}

\begin{document}
\begin{table}
\centering
\caption{Table example}
\begin{tabular}{
  S[table-format=4.2]
  S[table-format=3.2]
}
\toprule
\textbf{Number} & \textbf{Probability} (\si{\percent}) \\
\midrule
   0    & 100    \\
 998.13 &  60    \\
1996.26 &  31.37 \\
2994.39 &  16.11 \\
3992.52 &   8.26 \\
4990.64 &   4.23 \\
5988.77 &   2.17 \\
6986.90 &   1.11 \\
7828.46 &   0.63 \\
\bottomrule
\end{tabular}
\end{table}
\end{document}

Two table variant

Remarks:

The optional parameter of tabular or tabularx specifies, where the anchor of the table lies. t means the top element of the table (top rule or first row), b means the bottom line or last row. As default the table is vertically centered.
Horizontal placement. First use \centering instead of \centerline{...}. \centering centers the lines of the paragraph, whereas \centerline restricts the contents to a \hbox and does not warn, if the elements do not fit in the current line width. If the two tables fit in one line, then \hfill inbetween will move the left table to the left and right table to the right side of the text area. The weaker \hfil can be used, if the free space between the tables should be equally distributed to the left of the left table, the middle between the tables and to the right of the right table.

Full example:

\documentclass{article}
\usepackage{array}
\usepackage{booktabs}
\usepackage{caption}
\usepackage{siunitx}

\begin{document}
\begin{table}
\centering
\caption{Example with two tables}
\begin{tabular}[t]{
  S[table-format=4.2]
  S[table-format=3.2]
}
\toprule
\textbf{Number} & \textbf{Probability} (\si{\percent}) \\
\midrule
   0    & 100    \\
 998.13 &  60    \\
1996.26 &  31.37 \\
2994.39 &  16.11 \\
3992.52 &   8.26 \\
4990.64 &   4.23 \\
5988.77 &   2.17 \\
6986.90 &   1.11 \\
7828.46 &   0.63 \\
\bottomrule
\end{tabular}\hfill
\begin{tabular}[t]{
  S[table-format=4.2]
  S[table-format=3.2]
}
\toprule
\textbf{Number} & \textbf{Probability} (\si{\percent}) \\
\midrule
   0    & 100    \\
 998.13 &  60    \\
1996.26 &  31.37 \\
2994.39 &  16.11 \\
4990.64 &   4.23 \\
5988.77 &   2.17 \\
7828.46 &   0.63 \\
\bottomrule
\end{tabular}
\end{table}
\end{document}

Stretched to text width:

\documentclass{article}
\usepackage{array}
\usepackage{booktabs}
\usepackage{caption}
\usepackage{siunitx}

\begin{document}
\begin{table}
\centering
\caption{Table example}
\begin{tabular*}{\linewidth}{
  l
  @{\extracolsep\fill}
  S[table-format=4.2]
  S[table-format=3.2]
  l
}
\toprule
& \textbf{Number} & \textbf{Probability} (\si{\percent}) \\
\midrule
&    0    & 100    \\
&  998.13 &  60    \\
& 1996.26 &  31.37 \\
& 2994.39 &  16.11 \\
& 3992.52 &   8.26 \\
& 4990.64 &   4.23 \\
& 5988.77 &   2.17 \\
& 6986.90 &   1.11 \\
& 7828.46 &   0.63 \\
\bottomrule
\end{tabular*}
\end{table}
\end{document}

With ugly lines

\documentclass{article}
\usepackage{array}
\usepackage{caption}
\usepackage{siunitx}
\usepackage{tabularx}

\begin{document}
\begin{table}
\centering
\caption{Table example}
\begin{tabularx}{\linewidth}{
  |S[table-format=4.2]|S[table-format=3.2]|
}
\hline
\multicolumn{1}{|X|}{\centering\textbf{Number}}
& \multicolumn{1}{X|}{\centering\textbf{Probability} (\si{\percent})} \\
\hline
   0    & 100    \\ \hline
 998.13 &  60    \\ \hline
1996.26 &  31.37 \\ \hline
2994.39 &  16.11 \\ \hline
3992.52 &   8.26 \\ \hline
4990.64 &   4.23 \\ \hline
5988.77 &   2.17 \\ \hline
6986.90 &   1.11 \\ \hline
7828.46 &   0.63 \\ \hline
\end{tabularx}
\end{table}
\end{document}

Centering without alignment of numbers

\documentclass{article}
\usepackage{array}
\usepackage{caption}
\usepackage{tabularx}

\begin{document}
\begin{table}
\centering
\caption{Table example}
\begin{tabularx}{\linewidth}{
  |>{\centering\arraybackslash}X|
   >{\centering\arraybackslash}X<{\unskip~\%}|
}
\hline
\textbf{Number}
& \multicolumn{1}{X|}{\centering\textbf{Probability}} \\ \hline
   0    & 100    \\ \hline
 998.13 &  60    \\ \hline
1996.26 &  31.37 \\ \hline
2994.39 &  16.11 \\ \hline
3992.52 &   8.26 \\ \hline
4990.64 &   4.23 \\ \hline
5988.77 &   2.17 \\ \hline
6986.90 &   1.11 \\ \hline
7828.46 &   0.63 \\ \hline
\end{tabularx}
\end{table}
\end{document}

Related Solutions

Tables – How to Format Table with Long Column Head Entries

Here's an example using your idea of putting the headers horizontally and connecting them to the columns with arrows:

\documentclass{beamer}
\usepackage{tikz}
\usepackage{tabularx}
\newcommand*{\hnode}[1]{\tikz[remember picture] \node (#1) {};}
% I am actually using a similar theme
% The space ``wasted'' is similar for PaloAlto though
\usetheme{PaloAlto}

\begin{document}
\frame
{
  \frametitle{Comparision of boost implemented graph classes}
  \begin{tabular}{l}
    %
    % Column Headers, first column is empts
    %
    compressed\_sparse\_row\_graph\hnode{H3}\\
    adjacency\_matrix\hnode{H2}\\
    adjacency\_list\hnode{H1}\\
    \\
  \end{tabular}
  \begin{tabularx}{\textwidth}{X c c c}
    %
    & \hnode{C1}
    & \hnode{C2}
    & \hnode{C3}\\
    % Rows, I suspect I need about 10
    % Class               adjlist          adjmatrix     csrg
    \hline 
    AdjacencyGraph        & Yes            & No          & Yes \\
    Interface \#2         & Yes            & No          & Yes \\
    Interface \#3         & Yes            & No          & Yes \\
    Interface \#4         & Yes            & No          & Yes \\
    Interface \#5         & Yes            & No          & Yes \\
    Interface \#6         & Yes            & No          & Yes \\
    Interface \#7         & Yes            & No          & Yes \\
    Interface \#8         & Yes            & No          & Yes \\
    Interface \#9         & Yes            & No          & Yes \\
    % Rest omitted
  \end{tabularx}
\tikz[remember picture,overlay] \draw (H1)  [very thick, red,->] -| (C1);
\tikz[remember picture,overlay] \draw (H2)  [very thick, red,->] -| (C2);
\tikz[remember picture,overlay] \draw (H3)  [very thick, red,->] -| (C3);
}

\end{document}

It actually looks pretty good, if I may say so myself.

beamer slide

[Tex/LaTex] Chapter title and rotated table (with subtables) on the same page

You are facing two problems here:

The hvfloat package does not set \@captype (like an ordinary floating environment does) so the subcaption package has no idea if its commands are used inside a figure, a table, or not within a floating environment at all. This must be fixed by Herbert, however you could use \captionsetup{type=table} as workaround.
The standard document classes set \abovecaptionskip to a value of 10pt, \belowcaptionskip to 0pt. \abovecaptionskip will be used above the caption, and \belowcaptionskip below of it. However, this gives you a obvious problem when a \caption is typeset above a figure or table content since you will get a distance of \belowcaptionskip (=0pt) between caption and content, i.e. no distance of all. There are two different (and incompatible) ways to resolve this situation:
- \abovecaptionskip will be used between caption and content, \belowcaptionskip will be used between caption and edge of the floating environment. (This has the advantage that you could use the default values of \abovecaptionskip and \belowcaptionskip as set by the document class, and the result will not change at all when using \caption below its contents, as designed by Leslie Lamport.)
- If the caption is below its content, only \abovecaptionskip is used. If the caption is above its content, only \belowcaptionskip is used. (The skips need to be adjusted for making this work, but you are able to setup different skips for above-captions and below-captions here.)

As you see both methods have its pros and cons, but are unfortunately incompatible. However, KOMA-Script and the (sub)caption package are using the first method while hvfloat seems to use the latter. (I'm not sure about this since I didn't have found the time to look into Herbers sources, but at least hvfloat changes the values of the caption skips and therefore just loading the package will affect the skips of the non-hvfloat-floating environments (and the longtable environment and...) as well.)

To compensate this one needs to write macros to save and restore the skips.

So in total we have:

\documentclass[a4paper] {scrbook}

% Save the values of \abovecaptionskip and \belowcaptionskip into \restorecaptionskips
\edef\restorecaptionskips{%
  \noexpand\setlength\noexpand\abovecaptionskip{\the\abovecaptionskip}%
  \noexpand\setlength\noexpand\belowcaptionskip{\the\belowcaptionskip}}
%\show\restorecaptionskips
\usepackage{hvfloat}
% Save the changed values of \abovecaptionskip and \belowcaptionskip into \restorehvcaptionskips
\edef\restorehvcaptionskips{%
  \noexpand\setlength\noexpand\abovecaptionskip{\the\abovecaptionskip}%
  \noexpand\setlength\noexpand\belowcaptionskip{\the\belowcaptionskip}}
% Restore the values of \abovecaptionskip and \belowcaptionskip
\restorecaptionskips

\usepackage{subcaption}

\begin{document}

\appendix \cleardoublepage
\chapter{Some Data Tables}

\restorehvcaptionskips % only needed if "capPos=t"
\hvFloat[capPos=b,rotAngle=90,nonFloat]{table}{%
\restorecaptionskips
\captionsetup{type=table}% set \@captype
  \hspace*{\fill}
  \begin{subtable}{.3\textwidth}
    \rule{\linewidth}{12cm}
  \end{subtable}
  %
  \hspace*{\fill}
  %
  \begin{subtable}{.3\textwidth}
    \rule{\linewidth}{12cm}
  \end{subtable}
  \hspace*{\fill}
}{Table with interesting data}{}
\restorecaptionskips

\end{document}