I am plotting a matrix with geom_raster in ggplot. If I look at the plot myself in RStudio, it is unsmoothed:
When I compile the knitr doc into a PDF, it gets smoothed somehow:
Any idea what's happening?
(Ignore the aspect ratio, I'd expect that.)
The R code is basically this (variable names changed):
ggplot(subset(data, x != y), aes(x, y)) +
geom_raster(aes(fill=the_fill), interpolate=FALSE) +
facet_wrap(~a_facet)
