irisf: Edgar Anderson's Iris Data

Description Usage Format Source References See Also Examples

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: “Iris setosa”, “I. versicolor”, and “I. virginica”.

Usage

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Format

'irisf' is a data frame with 150 observations with a factor indicating the species and four quantitative variables:

Species

a factor with levels setosa versicolor virginica

Sepal.Length

Sepal length

Sepal.Width

Sepal width

Petal.Length

Petal length

Petal.Width

Petal width

Source

Fisher, R. A. (1936) “The use of multiple measurements in taxonomic problems”. Annals of Eugenics, 7:179-188.

Anderson, E (1935) “The irises of the Gaspe Peninsula”, Bulletin of the American Iris Society, 59:2-5

References

Flury, B.D. (1997) A First Course in Multivariate Statistics, New York: Springer

See Also

'iris' in datasets, which is presents the same data, but with the species as the fifth column rather than the first

Examples

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data(irisf)
## Not run: 
pairs(irisf[,-1])
## End(Not run)


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