The Iris
data set is Fisher’s iris data (Fisher, 1936). Sepal and petal size were measured for 50 specimens from each of three species of iris. There is one observation per specimen.
The following list describes each variable.
sepallen
sepal length, in millimeters
sepalwid
sepal width, in millimeters
petallen
petal length, in millimeters
petalwid
petal width, in millimeters
species
species of iris