I need to specify different "enlarge x limits" for the lower and upper axis extrema. Something like enlarge x limits={{value=0.2,upper}, {value=0.4,lower}} does not work however. Any ideas? Using xmin and xmax to modify the range first is not an option as I use "symbolic x coords".
\documentclass{standalone}
\usepackage{pgfplots}
\begin{document}
\begin{tikzpicture}
\begin{axis}[ybar,ymin=0,symbolic x coords={a,b,c}, enlarge x limits=true, xtick=data, legend pos=south east]
\addplot coordinates { (a,10) (b,15) (c,20) };
\addlegendentry{legend}
\end{axis}
\end{tikzpicture}
\end{document}
Here I want to make room at lower side to show the bar properly and add more whitespace at the upper side to make room for the legend (I prefer to keep the legend inside the plot).

\documentclassso that those trying to help don't have to recreate it. I also helps to test that the solution indeed does work. – Peter Grill Oct 04 '11 at 15:05