Gadfly is a system for plotting and visualization based largely on Hadley Wickhams's ggplot2 for R, and Leland Wilkinson's book The Grammar of Graphics. Getting Started From the Julia REPL a reasonably up to data version can be installed with Pkg.add("Gadfly") This will likely result in half a dozen or so other packages also being installed. Gadfly is then loaded with. using Gadfly Optional: cairo