[Tex/LaTex] Multirow on a single column

multirowtablesvertical alignment

I have the following table:

\documentclass{article}
\usepackage{multirow}
\usepackage{booktabs}

\begin{document}

\begin{table}
\centering
\footnotesize
\begin{tabular}{lllll}
\toprule
Algorithm & Learner Memory & Production & Interpretation & Hyperparameters\\
\midrule
KNN & Samples (S) & KNN-based & KNN-based & $k$\\
\multirow{2}{*}{PE}  & Prototypes (P) & Discriminative & Nearest & $\alpha$\\
                     &                & Descriptive    &         &         \\
\multirow{2}{*}{AP}  & P + S          & Discriminative & Nearest & /       \\
                     &                & Descriptive    &         &         \\
\multirow{2}{*}{CWP} & P + Counts     & Discriminative & Nearest & $\alpha$\\
                     &                & Descriptive    &         &         \\
\bottomrule
\end{tabular}
\end{table}

\end{document}

As you can see, I use multirow to have two entries in the third column. However, I don't like how the output looks. While the entries in the first column (Algorithm) are centered vertically, the other columns where there is only 1 entry (Learner Memory, Interpretation and Hyperparameters) are aligned at the top, because of the multirow. How can I center these entries as well?

Best Answer

Use makecell. I added some padding between rows:

\documentclass{article}
\usepackage{multirow, makecell}
\usepackage{booktabs}
\def\DisDes{\makecell{Discriminative\\ Descriptive}}

\begin{document}

\begin{table}
  \centering
  \footnotesize
  \renewcommand{\cellalign}{lc}
  \begin{tabular}{lllll}
    \toprule
    Algorithm & Learner Memory & Production & Interpretation & Hyperparameters \\
    \midrule
    KNN & Samples (S) & KNN-based & KNN-based & $k$ \\
    \addlinespace
    PE & Prototypes (P) & \DisDes & Nearest & $\alpha$ \\
    \addlinespace
    AP & P + S & \DisDes & Nearest & / \\
    \addlinespace
    CWP & P + Counts & \DisDes & Nearest & $\alpha$ \\
    \bottomrule
  \end{tabular}
\end{table}

\end{document}

Related Solutions

[Tex/LaTex] Multirow: column borders missing

If I understand you correctly, you like to achieve something like this:

enter image description here

For it I just correct errors in your MWE: \hline before tabular, number of rows in multirow:

\documentclass[11pt]{article}
\usepackage{multirow}

\usepackage[active,floats,tightpage]{preview}
\setlength\PreviewBorder{1em}

\begin{document}
    \begin{table}\centering
      \begin{tabular}{|c|c|c|}
      \hline
      1 & 2 & 3     \\      \hline
      1 &   & 3     \\      \cline{1-1}\cline{3-3}
      1 & \multirow{-2}{*}{123}
            & 3     \\      \hline
    \end{tabular}
    \end{table}
\end{document}

Preview package in preamble I added just to show table alone.

[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

Best Answer

Related Solutions

[Tex/LaTex] Multirow: column borders missing

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

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