From: Andrew on
I'm using the LaTeX interpreter to renter all of the labels and legends on my figures for a document I'm preparing in LaTeX.

Is there a way to define macros such as;
\newcommand{\rscale}{\rho}
so that I can ensure consistency across all of my figures.

xlabel('Cross section ($\rscale$)','interpreter','latex');

I think what I'm looking for is where the pre-amble is defined for the LaTeX interpreter...