Try this: :type cairo
See: https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-R.html Yours, Christian Naresh Gurbuxani <naresh_gurbux...@hotmail.com> writes: > How can I set up a code block which uses R code to output a cairo > graphics file? In below example, code block for simple R graph uses > header argument to input filename. Is it possible to create a similar > set up when cairo is used? > > When exported to pdf, my graphs look similar with and without cairo. > Are other inputs needed to use all capabilities of cairo? > > Thanks, > Naresh > > ** Simple Plot > #+header: :file figures/simpleplot.png > #+begin_src R :exports results :results graphics file > set.seed(123) > mydf <- data.frame(x1 = rnorm(5, mean = 0, sd = 1), > y1 = rnorm(5, mean = 0, sd = 1), > x2 = rnorm(5, mean = 4, sd = 2), > y2 = rnorm(5, mean = 4, sd = 2)) > > with(mydf, > plot(x1, y1, xlim = c(-2, 8), ylim = c(-2, 8), pch = 20, > cex = 2, col = rgb(0.9, 0, 0, alpha = 0.7), xlab = "", ylab = "")) > with(mydf, > points(x2, y2, pch = 20, cex = 2, col = rgb(0, 0.9, 0, alpha = 0.7))) > with(mydf, > arrows(x1, y1, x2, y2, length = 0.2, angle = 20, code = 2, > col = rgb(0.7, 0.7, 0.7))) > #+end_src > > ** Using Cairo > How to provide filename as header? How to use :type cairo? > #+begin_src R :exports results :results output > library(Cairo) > > set.seed(123) > mydf <- data.frame(x1 = rnorm(5, mean = 0, sd = 1), > y1 = rnorm(5, mean = 0, sd = 1), > x2 = rnorm(5, mean = 4, sd = 2), > y2 = rnorm(5, mean = 4, sd = 2)) > > CairoPNG("figures/cairoplot.png") > with(mydf, > plot(x1, y1, xlim = c(-2, 8), ylim = c(-2, 8), pch = 20, > cex = 2, col = rgb(0.9, 0, 0, alpha = 0.7), xlab = "", ylab = "")) > with(mydf, > points(x2, y2, pch = 20, cex = 2, col = rgb(0, 0.9, 0, alpha = 0.7))) > with(mydf, > arrows(x1, y1, x2, y2, length = 0.2, angle = 20, code = 2, > col = rgb(0.7, 0.7, 0.7))) > dev.off() > #+end_src > > #+RESULTS: > > [[file:figures/cairoplot.png]]
