English: Four box plot variations demonstrating the use of notches and variable width.

Created in the free statistical software package R using two (arbitrarily chosen) data vectors (named "data1" and "data2") and the following code:

par(mfrow=c(2,2))
boxplot(data1, data2, ylim=c(0,100), names=c("Group 1","Group 2"), notch=FALSE, varwidth=FALSE, main=("Traditional Box Plot"))
boxplot(data1, data2, ylim=c(0,100), names=c("Group 1","Group 2"), notch=TRUE, varwidth=FALSE, main=("Notched Box Plot"))
boxplot(data1, data2, ylim=c(0,100), names=c("Group 1","Group 2"), notch=FALSE, varwidth=TRUE, main=("Variable Width Box Plot"))
boxplot(data1, data2, ylim=c(0,100), names=c("Group 1","Group 2"), notch=TRUE, varwidth=TRUE, main=("Variable Width Notched Box Plot"))

Exported as pdf, then converted to svg in Inkscape.