change numbering in subfigure

Question

I use subfigure package, the numbering in the side-by-side figures is automatically (a), (b), (c)... I would like to change the numbering in one of the figures to (i), (ii), (iii)...This might be rather easy for the tex experts. If so, please drop me an advice, thanks! Yanting.

thesubfigure package is obsolete. it is replaced with subfig (\subfloat[...]{\includegraphics{<name>}}). it would be even better to follow the subcaption package. — Zarko, Apr 06 '19 at 03:53
Thanks a lot! That works. However, this command has changed all the numberings to roman throughout the manuscript, what I need is to only change the numbering in one figure to roman, and the numberings in other figures remain alphabetical. Is that possible without switching the package? (still use subfigure package) Thanks! — Yanting, Apr 06 '19 at 04:04

score 1 · Accepted Answer · answered Apr 06 '19 at 03:55

\documentclass{article}
\usepackage{subfigure}
\usepackage{graphicx}
\renewcommand\thesubfigure{(\roman{subfigure})}
\begin{document}
\begin{figure}
  \centering
  \subfigure[A subfigure\label{a}]{\includegraphics[width=.45\textwidth]{example-image-a}} \quad
  \subfigure[Another subfigure\label{b}]{\includegraphics[width=.45\textwidth]{example-image-b}}
  \caption{Some figures}\label{mainfigure}
\end{figure}
See Figures \ref{a} and \ref{b}.
\end{document}

However, subfigure is obsolete. Use subcaption instead:

\documentclass{article}
\usepackage[labelformat=simple]{subcaption}
\usepackage{graphicx}
\renewcommand\thesubfigure{(\roman{subfigure})}
\begin{document}
\begin{figure}
  \centering
  \begin{subfigure}{.45\textwidth}
    \includegraphics[width=\linewidth]{example-image-a}
    \caption{A subfigure}
    \label{a}
  \end{subfigure}\quad%
  \begin{subfigure}{.45\textwidth}
    \includegraphics[width=\linewidth]{example-image-b}
    \caption{Another subfigure}
    \label{b}
  \end{subfigure}
  \caption{Some figures}\label{mainfigure}
\end{figure}
See Figures \ref{a} and \ref{b}.
\end{document}

(i) read my comment: don't encourage OP to use obsolete pacages (ii) using this package you already found answer for op question, so yours is duplicate. — Zarko, Apr 06 '19 at 03:57

Zarko · Answer 2 · 2019-04-06T04:33:32.263

the subfigure package is obsolete. it is replaced withsubfigwhich definesubfloat` environment:
```
\subfloat[...]{\includegraphics{<imge file name>}}). 
```

you can change numbering of sub figures with

\renewcommand\thesubfigure{\roman{subfigure}}

it would be even better to follow the subcaption package:

\documentclass{article}
\usepackage{subcaption}
\usepackage{graphicx}
\renewcommand\thesubfigure{\roman{subfigure}}
\captionsetup{subrefformat=parens}

\begin{document}
\begin{figure}
  \centering
  \begin{subfigure}{.3\linewidth}
  \includegraphics[width=\linewidth]{example-image-duck}
  \caption{sub caption a}
  \label{fig:figure-1.a}
  \end{subfigure}
  \hfil
  \begin{subfigure}{.3\linewidth}
  \includegraphics[width=\linewidth]{example-image-duck}
  \caption{sub caption b}
  \label{fig:figure-1.b}
  \end{subfigure}
  \hfil
  \begin{subfigure}{.3\linewidth}
  \includegraphics[width=\linewidth]{example-image-duck}
  \caption{sub caption c}
  \label{fig:figure-1.c}
  \end{subfigure}
\caption{My figures}
\label{fig:figure1}
\end{figure}
See Figures \ref{fig:figure-1.a}, \ref{fig:figure-1.b} and \ref{fig:figure-1.c} \dots

change numbering in subfigure

2 Answers2