

iris {base}                                  R Documentation

_E_d_g_a_r _A_n_d_e_r_s_o_n_'_s _I_r_i_s _D_a_t_a

_D_e_s_c_r_i_p_t_i_o_n_:

     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 Vir-
     ginica.

_U_s_a_g_e_:

     data(iris)
     data(iris3)

_F_o_r_m_a_t_:

     `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.

_S_o_u_r_c_e_:

     R. A. Fisher (1936).  The Use of Multiple Measurements
     in Taxonomic Problems.  Annals of Eugenics, 7, Part II,
     179-188.

     The data were collected by Edgar Anderson (1935).  The
     irises of the Gaspe Peninsula, Bulletin of the American
     Iris Society, 59, 2-5.

_S_e_e _A_l_s_o_:

     `matplot' some examples of which use `iris'.

