How to make a boxplot in Sage?

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Not an answer! Just copying one of the examples linked in Jason's post in case sagenb gets too slow at times.

data1=[1,2,2,2,1,1,2,2,2,2,2,3,3,3,3,3,3,3,4,4,4,3,3,3,4,5,5,10]
data2=[5,4,4,4,4,3,3,3,3,3,3,3,3,3,2,2,2,2,5,5,5,5,5,6,6,6,6,6,6] 

r.png()
r.boxplot(data1,data2)
r.dev_off()

Here are some examples. To find these, I went to sagenb.org, clicked on "Browse published worksheets", then in the search box in the upper right, typed "boxplot" and clicked the search button.