How to add combined cross-references for two subfigures?

Question

I want to have two subfigures, and then reference them like "as seen in Figure 2a,2b" -- so to combine them.

How can I do this? (or if you know a better way in lyx or latex)

Answer 1

I slightly modified Gonzalo Medina's example in order to use the cleveref package which (among other things) automatically determines the format of a cross-reference according to its "type".

\documentclass{article}

\usepackage[demo]{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{cleveref}

\AtBeginDocument{%
  \renewcommand{\crefpairconjunction}{,}%% instead of " and\nobreakspace"
  \renewcommand{\crefmiddleconjunction}{,}% instead of ", "
  \renewcommand{\creflastconjunction}{,}% instead of " and\nobreakspace"
}

\begin{document}

\begin{figure}
\begin{subfigure}[b]{.5\linewidth}
  \centering
  \includegraphics{name1}
  \caption{A subfigure}
  \label{fig:one-one}
\end{subfigure}%
\begin{subfigure}[b]{.5\linewidth}
  \centering
  \includegraphics{name1}
  \caption{A subfigure}
  \label{fig:one-two}
\end{subfigure}
\caption{A figure with two subfigures}
\label{fig:one}
\end{figure}

\dots\ as seen in \Cref{fig:one-one,fig:one-two} \dots

\end{document}

EDIT: Added redefinition of \crefpairconjunction & friends.

Answer 2

You can achieve what you want using the standard \ref command or \ref and \subref from the subcaption package (which should be preferred over the subfig package: subcaption vs. subfig). Here's a little example:

\documentclass{article}
\usepackage[demo]{graphicx}
\usepackage{caption}
\usepackage{subcaption}

\begin{document}

\begin{figure}
\begin{subfigure}[b]{.5\linewidth}
  \centering
  \includegraphics{name1}
  \caption{A subfigure}
  \label{fig:1a}
\end{subfigure}%
\begin{subfigure}[b]{.5\linewidth}
  \centering
  \includegraphics{name1}
  \caption{A subfigure}
  \label{fig:1b}
\end{subfigure}
\caption{A figure with two subfigures}
\label{fig:1}
\end{figure}

...as seen in Figures~\ref{fig:1a},\ref{fig:1b}...

...as seen in Figures~\ref{fig:1a},\ref{fig:1}\subref{fig:1b}...    
    \end{document}

EDIT: I added a link to the question whose answer explains why subcaption should be preferred over subfig.

Answer 3

You can use the subfig package, and then \label each subfigure, e.g.

\documentclass{article}
\usepackage{subfig}

\begin{document}
\begin{figure}
 \centering
 \subfloat[This is figA]{\label{fig:figA}\Large A}\hspace{3cm}
 \subfloat[This is figB]{\label{fig:figB}\Large B}
 \caption{Here goes the main caption}
 \label{fig:figAB}
\end{figure}

Here are Figure~\ref{fig:figA} and Figure~\ref{fig:figB}, and a combination thereof: 
Figure~\ref{fig:figA},\subref*{fig:figB}.
\end{document}

Replace \Large A and \Large B with your figures.

Here is the output:

I guess you can write a simple macro to wrap up the combined call to \ref and \subref.