I have to admit that I find the
plotmath expressions in R a little fiddly to annotate plots with mathematical notation.
Apparently I am not the only one, but Stefano Meschiari did actually something about it. A few days ago his package
latex2exp appeared on CRAN.
The package provides the wonderful function
latex2exp that translates LaTeX code into
plotmath expressions. Brillant! All I have to remember is to escape the
“\” character, that is write
“\\“ instead of
Below is the first example from the
plotmath help file and again using
latex2exp. I think this is much easier to read and write.
You find more information about
latex2exp on Stefano’s web site and his GitHub repository.
R version 3.2.1 (2015-06-18)
Platform: x86_64-apple-darwin13.4.0 (64-bit)
Running under: OS X 10.10.4 (Yosemite)
attached base packages:
 stats graphics grDevices utils datasets methods base
other attached packages:
loaded via a namespace (and not attached):
 magrittr_1.5 tools_3.2.1 Rcpp_0.11.6 stringi_0.5-5 stringr_1.0.0