Here is a dummy piece of R code.
pca <- prcomp(matrix(rnorm(10*10), ncol=10)) pca$x pca$rotation
The third line appears indented, whereas it is not in the source. Removing the
$ sign from the line unindents it, so it looks like a collision between MathJax and Markdwon (at least Showdown).
How can I use the
$ notation in R code while avoiding this?