[Tex/LaTex] Table spacing, multi column

multicolumnspacingtables

I am trying to construct a table, but the spacing isn't balanced.

\documentclass{article}
\usepackage[english]{babel}
\usepackage{multirow}

\begin{document}
\begin{center}
\begin{tabular}{ |c|c|c|c|c|c|c|c|c|c| }

\hline
\multirow{2}{*}{Class} & \multicolumn{2}{c|}{Similarity Gibbs Sampling} & \multicolumn{2}{c|}{Hand Computatation} & \multicolumn{4}{c|}{Combination} & \multirow{2}{*}{Graph Cut(S)} \\ \cline{2-1} \cline{3-1} \cline{4-1} \cline{5-1} \cline{6-1} \cline{7-1} \cline{8-1} \cline{9-1}
& 0 & 1 & 0 & 1 & 1 & 2 & 3 & 4 & \\ \hline
${V_1}$ & 0.388 & 0.612 & 0.393 & 0.607 & 0 & 0 & 1 & 0 & 2 \\ \hline
${V_2}$ & 1 & 0 & 1 & 0 & 0 & 0 & 1 & 1 & 2 \\ \hline
${V_3}$ & 0 & 1 & 0 & 1 & 1 & 0 & 1 & 0 & 3 \\ \hline
${V_4}$ & 0.388 & 0.612 & 0.393 & 0.607 & 1 & 0 & 1 & 1 & 1 \\ \hline
%\cline{2-1} 
\end{tabular}
\end{center}
\end{document}

As you can see, the 3rd column and 5th column do not share the same spacing as 2nd and 4th respectively.

Best Answer

In addition to the issue with the widths of columns 3 and 5 not being the same as those of columns 2 and 4, respectively, I'd say your table has a second issue: The horizontal lines you're trying to draw between the first and second header rows touch each other and thus don't provide visual clues as to how the columns are grouped. (This is a shortcoming caused by the properties of \cline which can't be remedied easily short of using a different group of line-drawing commands -- see below for an alternative.)

To fix the first issue, you could use the tabularx package and its X column type to guarantee equal widths of columns 2 through 5. By default, material in a column of type X is set left-justified (ragged-right); in the example below I define a new column type, Y, which is a center-set version of X.
The second issue is best addressed, I believe, by using the line-drawing commands of the booktabs package. In particular, the command \cmidrule can serve to draw short "trimmed" horizontal lines that don't touch. Other benefits of using the rule-drawing comamnds of the booktabs package is that the spacing above and below the lines is much better than what you'll get with \hline and \cline and that the rules aren't all equally thick, making for a much more interesting-looking table.

enter image description here

\documentclass{article}
\usepackage{tabularx,booktabs}
  \newcolumntype{Y}{>{\centering\arraybackslash}X}
\usepackage[margin=1in]{geometry}  % choose page parameters best for your document
\begin{document}
\begin{table}
\begin{tabularx}{\textwidth}{@{} l *{4}{Y} *{5}{c} @{}}
\toprule
Class & 
\multicolumn{2}{c}{Similarity Gibbs Sampling} & 
\multicolumn{2}{c}{Hand Computation} & 
\multicolumn{4}{c}{Combination} & 
Graph Cut(S) \\ 
\cmidrule(lr){2-3} \cmidrule(lr){4-5} \cmidrule(lr){6-9} % left- and right-trimming
& 0 & 1 & 0 & 1 & 1 & 2 & 3 & 4 & \\ 
\midrule
${V_1}$ & 0.388 & 0.612 & 0.393 & 0.607 & 0 & 0 & 1 & 0 & 2\\ 
${V_2}$ & 1 & 0 & 1 & 0 & 0 & 0 & 1 & 1 & 2 \\ 
${V_3}$ & 0 & 1 & 0 & 1 & 1 & 0 & 1 & 0 & 3 \\ 
${V_4}$ & 0.388 & 0.612 & 0.393 & 0.607 & 1 & 0 & 1 & 1 & 1\\ 
\bottomrule
\end{tabularx}
\end{table}
\end{document}

Related Solutions

[Tex/LaTex] tabu package – gaps in vertical lines

One way is to shift up the skip prior to the mid-height \tabucline with a \\[-1pt]. See below for 2nd approach.

%Dokumentclass
\documentclass[landscape]{letter}

%Packages
\usepackage[landscape]{geometry}
\usepackage[utf8]     {inputenc}
\usepackage           {multirow}
\usepackage           {tabu}

%Formatting
\pagestyle{empty} %Remove numbering

\begin{document}
  \begin{tabu}{ |[1pt] l | l l | l | l |[1pt] }
                                                                                                                 \tabucline[1 pt]{1-5}
    \multicolumn{2}{ |[1pt] l }{ } & \multicolumn{3}{ |[1pt] l |[1pt]}{ }                                     \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } & \multicolumn{2}{  l |[1pt] }{ }   \\                       \hline
 y   &                              & \multicolumn{1}{ |[1pt] l |     }{ } & \multicolumn{2}{  l |[1pt] }{ }   \\[-1pt]   \tabucline[1 pt]{3-5} 
\hline
 x   &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\ \tabucline[1 pt]{1-5}
  \end{tabu}
\end{document}

enter image description here

Alternately, if you want the thin line to bisect the thick line, then the approach: \\[-1pt] \tabucline[1 pt]{3-5}\\[-12.5pt]\hline works.

%Dokumentclass
\documentclass[landscape]{letter}

%Packages
\usepackage[landscape]{geometry}
\usepackage[utf8]     {inputenc}
\usepackage           {multirow}
\usepackage           {tabu}

%Formatting
\pagestyle{empty} %Remove numbering

\begin{document}
  \begin{tabu}{ |[1pt] l | l l | l | l |[1pt] }
                                                                                                                 \tabucline[1 pt]{1-5}
    \multicolumn{2}{ |[1pt] l }{ } & \multicolumn{3}{ |[1pt] l |[1pt]}{ }                                     \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } & \multicolumn{2}{  l |[1pt] }{ }   \\                       \hline
 y   &                              & \multicolumn{1}{ |[1pt] l |     }{ } & \multicolumn{2}{  l |[1pt] }{ }   \\[-1pt]   \tabucline[1 pt]{3-5}\\[-12.5pt]
\hline
 x   &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\                       \hline
    &                              & \multicolumn{1}{ |[1pt] l |     }{ } &                                 & \\ \tabucline[1 pt]{1-5}
  \end{tabu}
\end{document}

enter image description here

[Tex/LaTex] Centering text in table and multi column environment

If you absolutely must employ the "prison look" for tables, but wish to lessen the visual oppressiveness, consider getting rid of the \hline directives in the body of the tabular material. And, load the array package and set \extrarowheight to a small non-zero length value. :-)

You should also make an effort to give the term "R" ("dispersion value") a consistent appearance. In your code, it shows up in math italics in the table's header but in upright ("Roman") in the body of the table. Do make the appearance of this variable name consistent. In the code below, I show how to make use of the math-italics method. And, while we're talking about consistency, I've made the M term employ (bold) math italics as well.

Finally, to center some material in a single cell of the first column, use a \multicolumn{1}{|c|}{...} "wrapper".

\documentclass{article}
\usepackage{array}    % for '\extrarowheight' macro
\usepackage{caption}  % for '\captionsetup' macro
\usepackage{amstext}  % for '\text' macro
\renewcommand{\thetable}{\Roman{table}} % just for this example

\begin{document}
\begin{table}%[h]
\captionsetup{font=bf,skip=0.5\baselineskip}
\setlength{\extrarowheight}{2pt}
\centering

\caption{\boldmath Values of Dispersion Constant ($R$)}
\begin{tabular}{|l|l|l|}
\hline
\multicolumn{1}{|c|}{\textbf{Algorithm}} & 
\multicolumn{2}{ c|}{\boldmath\textbf{Dispersion Constant ($R$)}}\\
\hline
& \boldmath $M=16$ & \boldmath $M=32$ \\ 
\hline

SCA & $R_{\text{SCA}} = 123$ & $R_{\text{SCA}} = 123$ \\ %\hline
MCMA & $R_{\text{MCMA}} = 123$ & $R_{\text{MCMA}} = 123$\\ %\hline 
MCMA(Dual Mode) & $R_{\text{MCMA}}$ & $R_{\text{MCMA}}$\\ %\hline 
DD-MCMA & $R_{\text{DD-MCMA}} = 123$ & $R_{\text{DD-MCMA}} = 123$\\%\hline 
DD-MCMA(Dual Mode) & $R_{\text{DD-MCMA}}$& $R_{\text{DD-MCMA}}$\\
\hline 
\end{tabular}
\end{table}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] tabu package – gaps in vertical lines

[Tex/LaTex] Centering text in table and multi column environment

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