This W3C-unspecified chart was created with R.

using the following commands

svg("R-basic_cars_plot_example.svg", 4,4,8)
plot(cars)
abline(-17.6,3.9, col="red")    #abline() adds a straight line to the plot: 
lines(lowess(cars), col="blue") #lines() adds a sequence of joined-up lines
text(15, 34, "Smoothed (lowess) line", srt=30, col="blue")                    #text() adds text
text(15, 45, "Straight line (slope 3.9, intercept -17.6)", srt=32, col="red") #(srt rotates)
title("1920s car stopping distances (from the 'cars' dataset)")
dev.off()

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