[Tex/LaTex] Table center alignment doesn’t seem to work

longtabletables

\documentclass{article}

\begin{document}

\begin{table*}[!htb] 
\renewcommand{\arraystretch}{1.3}

\begin{center}  

\caption{ Hydrostatics of 3b Asymmetric Catamaran Model [{s/L} 0.3]}\label{tab1}

\begin{tabular}{|c|c|c|c|c|}    \hline
\textbf {Parameter} & \textbf {Catamaran}   & \textbf {Inboard Catamaran} & \textbf {Outboard Catamaran} & \textbf {Units}\\ \hline
Displacement &  349705 &    349705 &    349705  & Kg\\\hline
Draft Amidships &       2.457&      2.457&      2.457   &   m  \\ \hline
Wetted Surface Area &   499.612 &   499.612 &   499.612&    \(m^2\)\\ \hline
\(C{_B}\)   &0.432 &    0.432 & 0.432 & - \\ \hline
L/B &5.239 &    5.239 & 5.239&  - \\ \hline
B/T &   2.471&  2.471 & 2.471 & - \\ \hline
\(L/\Delta ^ {1/3}\)    & 5.395 &   5.395   &5.395 &    - \\ \hline
        \end{tabular}

    \end{center}

\end{table*} 

\end{document}

Best Answer

The problem is that the table is too wide. You can get a reasonable width by splitting the long headers.

I also suggest to avoid vertical rules. You can easily reinsert them, though, from the code below.

Some more notes.

Don't use center, which adds unwanted vertical space.
Be consistent with the use of math mode in the first column.
For numeric tables, it's recommended to use siunitx.
Units should be typeset in the format required by the International System. For instance, the symbol for the kilogram is kg, not Kg.
An en-dash should be used for a missing value.

\documentclass{article}
\usepackage{booktabs,siunitx,makecell}


\begin{document}

\begin{table*}[!htb] 
\renewcommand{\arraystretch}{1.3}
\renewcommand\theadfont{\bfseries}

\centering

\caption{Hydrostatics of 3b Asymmetric Catamaran Model [\(s/L\ 0.3\)]}\label{tab1}

\begin{tabular}{
  @{}
  l
  S[table-format=3.3]
  S[table-format=3.3]
  S[table-format=3.3]
  c
  @{}
}
\toprule
\thead{Parameter} &
{\thead{Catamaran}} &
{\thead{Inboard \\ Catamaran}} &
{\thead{Outboard \\ Catamaran}} &
\thead {Units}\\
\midrule
Displacement        & \num{349705} & \num{349705} & \num{349705} & \si{\kg}  \\
Draft Amidships     &     2.457    &     2.457    &     2.457    & \si{\m}   \\
Wetted Surface Area &   499.612    &   499.612    &   499.612    & \si{\m^2} \\
\(C_B\)             &     0.432    &     0.432    &     0.432    & --        \\
\(L/B\)             &     5.239    &     5.239    &     5.239    & --        \\
\(B/T\)             &     2.471    &     2.471    &     2.471    & --        \\
\(L/\Delta^{1/3}\)  &     5.395    &     5.395    &     5.395    & --        \\
\bottomrule
\end{tabular}

\end{table*} 

\end{document}

Related Solutions

[Tex/LaTex] multirow doesn’t seem to work

Using * in the second argument of \multirow causes the natural width of the third argument to be used as the width for the "multirow" cell and, in this case, this is not desirable. Seeing the structure of your table, you seem to want something like

\multirow{2}{0.15\columnwidth}{$n=8$ (6 females). Voluntary...}

perhaps also changing the first argument to a more suitable value.

After seeing the edit to the original question, here's some modification to your code producing the desired result; notice that \multirow is used in the cells for the first and second columns to prevent the problem you mentioned:

\documentclass[12pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[italian]{babel}
\usepackage{graphicx}
\usepackage{color}
\usepackage{colortbl}
\usepackage{array}
\usepackage{booktabs}
\usepackage[font=footnotesize]{caption}
\usepackage{multirow}

\begin{document}
\begin{table}[h]\scriptsize
\centering
\begin{tabular}{>{\raggedright\arraybackslash}p{0.15\columnwidth}
>{\raggedright\arraybackslash}p{0.15\columnwidth} l 
>{\raggedleft\arraybackslash}p{0.15\columnwidth}}
\toprule
Study & Description & Conditions & Mean (SD) judgement error \\
\midrule
\multirow{2}{0.15\columnwidth}{Haggard e Clark, 2003}  
  & \multirow{3}{0.15\columnwidth}{$n=8$ (6 females).}  
  & \textit{Baseline}  &  \\
& & \hspace{12pt}Action & -1 (43) \\
& & \hspace{12pt}Tone & 41 (36) \\
\bottomrule
\end{tabular}
\end{table}

\end{document}

enter image description here

[Tex/LaTex] Vertically center elements in table doesn’t work

If you wish to stretch out the tabular vertically, use a consistent method like \arraystretch instead:

enter image description here

\documentclass[10pt]{article}
\usepackage{array}% http://ctan.org/pkg/array
\begin{document}
\begin{table}[!h]
  \centering
  \renewcommand{\arraystretch}{1.6}% Stretch tabular vertically
  \begin{tabular}{|m{3em}||m{4.8em}|m{3em}|}
    \hline
    Doping & $\alpha_b$ $\left(\textup{cm}^{-1}\right)$ & $\eta_{ext}$ \\ 
    \hline\hline 
    5 \% & $4 \cdot 10^{-4}$ & 0.995 \\
    \hline
    7.5 \% & $6 \cdot 10^{-4}$ & 0.992 \\
    \hline
    10 \% & $8 \cdot 10^{-4}$ & 0.987 \\
    \hline
  \end{tabular}
  \caption{Caption.}
  \label{theor_cooling_efficiency_parameters}
\end{table}
\end{document}

Alternatively, you can use struts as described in Column and row padding in tables. It's the optional argument of \\ that causes problems here.

Best Answer

Related Solutions

[Tex/LaTex] multirow doesn’t seem to work

[Tex/LaTex] Vertically center elements in table doesn’t work

Related Question