subfig caption spacing

Question

How do I reduce the vertical space between a caption of a subfigure and the image of that subfigure?

I tried:

\subfigure[\vspace{-0.2in} caption words]

doesn't seem to do anything.

Answer 1

Try

\addtolength{\subfigcapskip}{-0.2in}

You can read about customizing subfigure layout in Section 4 of the subfigure manual.