How to set cairo as default backend for x11() in R?

To make this permanent, you could add the following lines to your ~/.Rprofile file:

setHook(packageEvent("grDevices", "onLoad"),function(...) grDevices::X11.options(type='cairo'))options(device='x11')

r ggplot2 cairo

Define another function 'x11' which sets the proper type:

x11 = function (...) grDevices::x11(...,type='cairo')

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