[Tex/LaTex] Self-defined Width of the Pseudocode Box with algorithmicx

algorithmicxalgorithmsframedpseudocodetwo-column

This post has beautifully shown how to make the algorithm pseudocode box as wide as one column or two columns.

I am now writing a pseudocode with many if layers. So a one-column box cannot suffice. However, the layers are not that many to span over two columns. So my problem is that if I use the two-column box, the RHS is too empty and the comments are too far away from the code.

One-column, too narrow. Two-column, too wide.

Can I define the width of the algorithm box myself, say 1.5 columns wide?

Best Answer

You can place the algorithmic environment inside a minipage of desired width (for example, 1.5\columnwidth):

enter image description here

\documentclass{IEEEtran}
\usepackage{algpseudocode}% http://ctan.org/pkg/algorithmicx
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\usepackage{float}% http://ctan.org/pkg/float
\floatstyle{boxed} % Box...
\restylefloat{figure}% ...figure environment contents.
\begin{document}
\section{A section}
\begin{figure*}
  \centering
  \caption{Euclid’s algorithm}\label{euclid}
  \begin{minipage}{1.5\columnwidth}
  \begin{algorithmic}[1]
    \Procedure{Euclid}{$a,b$}\Comment{The g.c.d. of a and b}
      \State $r\gets a\bmod b$
      \While{$r\not=0$}\Comment{We have the answer if r is 0}
        \State $a\gets b$
        \State $b\gets r$
        \State $r\gets a\bmod b$
      \EndWhile\label{euclidendwhile}
      \State \textbf{return} $b$\Comment{The gcd is b}
    \EndProcedure
  \end{algorithmic}
  \end{minipage}
\end{figure*}

\lipsum[1-15]% dummy text
\end{document}

To reduce the box size itself, it is far more convenient to remove the boxed float style, and mere wrap the minipaged algorithmic environment inside an \fbox:

enter image description here

\documentclass{IEEEtran}
\usepackage{algpseudocode}% http://ctan.org/pkg/algorithmicx
\usepackage{lipsum}% http://ctan.org/pkg/lipsum
\usepackage{float}% http://ctan.org/pkg/float
%\floatstyle{boxed} % Box...
\restylefloat{figure}% ...figure environment contents.
\begin{document}
\section{A section}
\begin{figure*}
  \centering
  \caption{Euclid’s algorithm}\label{euclid}
  \fbox{\begin{minipage}{1.5\columnwidth}
  \begin{algorithmic}[1]
    \Procedure{Euclid}{$a,b$}\Comment{The g.c.d. of a and b}
      \State $r\gets a\bmod b$
      \While{$r\not=0$}\Comment{We have the answer if r is 0}
        \State $a\gets b$
        \State $b\gets r$
        \State $r\gets a\bmod b$
      \EndWhile\label{euclidendwhile}
      \State \textbf{return} $b$\Comment{The gcd is b}
    \EndProcedure
  \end{algorithmic}
  \end{minipage}}
\end{figure*}

\lipsum[1-15]% dummy text
\end{document}

Related Solutions

[Tex/LaTex] How to get a double column verbatim in a single column table, in a double column document

Here's one possible solution using the twocolumn class option and figure* and two minipages to typeset the listings (since figure* was used, the listings will appear on the top of the next page):

\documentclass[twocolumn]{article}
\usepackage{listings}
\usepackage{lipsum}

\begin{document}

\lipsum[1-6]
\begin{figure*}
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
if (i<>0) then i := 0;
\end{lstlisting}
\end{minipage}%
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
\end{lstlisting}
\end{minipage}%
\caption{Two  side-by-side listings}
\label{fig:listings}
\end{figure*}
\lipsum[1-6]

\end{document}

enter image description here

And here's now another option: instead of using the twocolumn document option, the multicol package is used to produce the text in two-column mode; the multicols environment is ended, the side-by-side listings are typeset using simple minipages (the caption package was used to produce a possible caption using \captionof), and then another multicols environment begins:

\documentclass{article}
\usepackage{multicol}
\usepackage{listings}
\usepackage{caption}
\usepackage{lipsum}

\begin{document}

\begin{multicols}{2}
\lipsum[1-2]
\end{multicols}
\noindent\begin{minipage}{\textwidth}
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
if (i<>0) then i := 0;
\end{lstlisting}
\end{minipage}%
\begin{minipage}[t]{0.5\textwidth}
\begin{lstlisting}
if (i<=0) then i := 1;
if (i>=0) then i := 0;
\end{lstlisting}
\end{minipage}%
\captionof{figure}{Two  side-by-side listings}
\label{fig:listings}
\end{minipage}
\begin{multicols}{2}
\lipsum[1-2]
\end{multicols}

\end{document}

In this last option, the usual restriction of multicol with floats apply.

enter image description here

[Tex/LaTex] How to put algorithm and figure side by side in two column document

Here's one possibility:

\documentclass[conference]{IEEEtran}

\usepackage[ruled]{algorithm}
\usepackage{algpseudocode}
%\usepackage{subfigure}
\usepackage[demo]{graphicx}
\usepackage{times}
\usepackage{amssymb}
\usepackage{url}
\usepackage{hyperref}
\usepackage{amsmath}
\usepackage{multirow}
\usepackage{graphicx}
\usepackage{setspace}
\usepackage{wrapfig}

\newcounter{tmp}

\begin{document}

\title{xxx}

\maketitle

\begin{figure*}
  \centering
  \begin{minipage}[t]{0.32\textwidth}
    \centering
    \raisebox{-\height}{\includegraphics[width=1\textwidth]{xx.eps}}
    \vspace{-0.4cm}%
    \caption{THis is figure xx}\label{fig:xx}
  \end{minipage}\hfill
  \begin{minipage}[t]{0.32\textwidth}
    \centering
    \raisebox{-\height}{\includegraphics[width=1\textwidth]{yy.eps}}
    \vspace{-0.4cm}%
    \caption{This is figure yy.}\label{fig:yy}
  \end{minipage}\hfill
  \begin{minipage}[t]{0.32\textwidth}
\alglanguage{pseudocode}
\renewcommand\figurename{Algorithm}
\setcounter{tmp}{\value{figure}}
\setcounter{figure}{\value{algorithm}}
\small
\caption{\small Insert item into Hash Table (with mCBF and aCBF)}
\label{Algorithm:insert_mCBF_aCBF}
\begin{algorithmic}[1]
\Procedure{$\mathbf{InsertItem}$}{item $x$}
    \For {$i = 1 \to k$}
            \State $mCBF.C_{f_i(x)\%N}$ ++
    \EndFor
    \State $C_{min} = MAX\_VALUE$
    %\Comment{Get minimum value of $k$ counters in mCBF}
    \For {$i = 1 \to k$}
        \If {$C_{min} > mCBF.C_{f_i(x)\%N}$}
            \State $C_{min} \gets mCBF.C_{f_i(x)\%N}$
            \State $j \gets f_i(x)\%N$
            \State $m \gets i$
        \EndIf
    \EndFor
    %\State $C_{min} = min\{mCBF.C_{f_1(x)\%N},\cdot\cdot\cdot,mCBF.C_{f_k(x)\%N}\}$
    %\State $i = \textbf{SubscriptOf}(C_{min})$
    \State $B_j = B_j \cup x$
    \Comment \emph{Insert $x$ into $B_j$}
    \For {$i = 1 \to k$}
            \State $aCBF_m.C_{f_i(x)\%\textbf{LengthOf}(aCBF_m)}$ ++
    \EndFor
\EndProcedure
\Statex
\end{algorithmic}
\end{minipage}
  \setcounter{figure}{\value{tmp}}
\end{figure*}

\end{document}

enter image description here

The demo option for graphicx simply replaces actual figures with black rectangles; do not use that option in your actual document.

Best Answer

Related Solutions

[Tex/LaTex] How to get a double column verbatim in a single column table, in a double column document

[Tex/LaTex] How to put algorithm and figure side by side in two column document

Related Question