I am trying to make a large table in a document with the iopart class. The table is too long and wide to fit on a single page. I'd like some way to decrease the width, perhaps by decreasing the font size and reducing the horizontal spacing between columns. Here's the code that makes the table
\begin{longtable}{@{}llllll}
\caption{\label{tab:table} Caption }\\
\footnotesize
\centering
\br
&&&& Header 5-1 & Header 6-1 \\
\ns
& Header 2-2 && Header 4-2 & Header 5-2 & Header 6-2 \\
\ns
Header 1-3 & Header 2-3 & Header 3-3 & Header 4-3 & Header 5-3 & Header 6-3 \\
\mr
a & b & c & d & e & f \\
\br
\end{longtable}
Data in cells a and d are somewhat long, but can't be split over lines. Data in the others cells is a little shorter. Does anyone have any tricks for making longtables shorter in the iopart class?
