pop                  package:bethel                  R Documentation

_B_e_t_h_e_l _p_o_p_u_l_a_t_i_o_n

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

     1000 individuals classified according to sex (M,F) and
     geographical area (area1 to area4). Collected variables: yearly
     data on income, number of books read, total days of sporting
     activities.

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

     data(pop)

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

     A data frame with 1000 observations on the following 4 variables.

     '_s_t_r_a_t_a' a factor with levels 'F_area1' 'F_area2' 'F_area3'
          'F_area4' 'M_area1' 'M_area2' 'M_area3' 'M_area4'

     '_i_n_c_o_m_e' yarly income

     '_b_o_o_k_s' number of books read

     '_s_p_o_r_t_D_a_y_s' total days of sporting activities

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

     data(pop)
     str(pop)
     summary(pop)

