Edgar Anderson's Iris Data

Usage

data(iris)
data(iris3)

Format

iris is a data frame with 150 cases (rows) and 5 variables (columns) named Sepal.Length, Sepal.Width, Petal.Length, Petal.Width, and Species.

iris3 gives the same data arranged as a 3-dimensional array of size 50 by 4 by 3, as represented by S-PLUS. The first dimension gives the case number within the species subsample, the second the measurements with names Sepal L., Sepal W., Petal L., and Petal W., and the third the species.

Description

This famous (Fisher's or Anderson's) iris data set gives the measurements in centimeters of the variables sepal length and width and petal length and width, respectively, for 50 flowers from each of 3 species of iris. The species are Setosa, Versicolor, and Virginica.

Source

R. A. Fisher (1936). The Use of Multiple Measurements in Taxonomic Problems. Annals of Eugenics, 7, Part II, 179𤪬.

The data were collected by Edgar Anderson (1935). The irises of the Gaspe Peninsula, Bulletin of the American Iris Society, 59, 2ס.

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