# Setting subcaption width for specific subcaptions

In the subfig packge, the command \captionsetup[subfigure]{width=<length>} can set the width of all subcaptions within a figure.

How can the width of just a single subcaption in a figure be set?

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Using grouping should do it:

\begin{figure}
\begingroup
\captionsetup[subfigure]{width=<length>}
\subfloat[<caption>}{ .... }
\endgroup
%
\subfloat[<caption>}{ .... }
\end{figure}

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Is this grouping something that can be done in all of LaTeX or does it come with subfig? –  Tyson Williams Jul 21 '11 at 14:02
It can be done with everything in (La)TeX. Note that \begin{..} and \end{..} already add group, so any LaTeX environment would do as well. Also some settings like counters are done global so grouping won't effect them. –  Martin Scharrer Jul 21 '11 at 14:04
And what if I want the subfloat to be centered above the caption? –  Tyson Williams Jul 21 '11 at 14:06
Try justification=centering,singlelinecheck=false,position=top as options. –  Martin Scharrer Jul 21 '11 at 14:12
This justifies the text but does nothing to the subfloat. –  Tyson Williams Jul 21 '11 at 14:25