search for: hydrochemistry

Dear List, I have hit this problem with using a plotmath expression in an axis label on a lattice plot I'm including in a Sweave document. The actual document is far too long and boring (unless you are interested in the hydrochemistry of upland lakes) to include here, but the following minimal example reproduces the problem; basically, the PDF produced by Sweave has missing characters in the plotmath label whilst the eps file doesn't. Here is the minimal Rnw document: \documentclass[a4paper,12pt]{article} \usepackage{graph...