subfigure

I am using pgf/tikz graphics and I'm wondering how one can control the scaling of font sizes in the graphics when using them in minipage/subfig environments? Is there a way to manually set a permanent font size for pgf/tikz graphics or in latex in general so as to make font sizing invariant to scaling? Ideally I'd like to be able to manually specify a font size per graphic or for all graphics or subfig/minipage environments? Here is an example of the usage as suggested. Thanks for the help. \begin{figure}[h] \centering \subfloat[Graph 1]{ \begin{minipage}[h]{0.7\linewidth} \centering

Is it possible to produce subfigures (with associated subcaptions) using knitr? Here is a minimal working example: \documentclass{article} \begin{document} <<echo = FALSE, fig.cap = c("Some numbers.", "Some more numbers."), out.width = "0.5\\textwidth", fig.align = "center">>= plot(1:10) plot(30:100) @ \end{document} This results in two figures labelled Figure 1 and Figure 2 with captions as defined (respectively). But I want them to be labelled "Figure 1a" and "Figure 1b", as you can do with the subcaption LaTeX package. I know there is a knitr options "fig.env", but this doesn't solve it (at