galton                package:UsingR                R Documentation

_G_a_l_t_o_n'_s _h_e_i_g_h_t _d_a_t_a _f_o_r _p_a_r_e_n_t_s _a_n_d _c_h_i_l_d_r_e_n

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

     Data set from tabulated data set used by Galton in 1885 to study
     the relationship between a parent's height and their childrens.

_U_s_a_g_e:

     data(galton)

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

     A data frame with 928 observations on the following 2 variables.

     _c_h_i_l_d The child's height

     _p_a_r_e_n_t The "midparent" height

_D_e_t_a_i_l_s:

     The midparent's height is an average of the fathers height and
     1.08 times the mother's. In the data there are 205 different
     parents and 928 children. The data here is truncated at the ends
     for both parents and children so that it can be treated as numeric
     data. The data were tabulated and consequently made discrete. The
     'father.son' data set is similar data used by Galton and is
     continuous.

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

     This data was found at <URL:
     http://www.bun.kyoto-u.ac.jp/~suchii/galton86.html>.

     See also the data.set father.son which was found from <URL:
     http://stat-www.berkeley.edu/users/juliab/141C/pearson.dat>.

_E_x_a_m_p_l_e_s:

     data(galton)
     plot(galton)
     ## or with some jitter.
     plot(jitter(child,5) ~ jitter(parent,5),galton)
     ## sunflowerplot shows flowers for multiple plots (Thanks MM)
     sunflowerplot(galton)

