juul2                  package:ISwR                  R Documentation

_J_u_u_l'_s _I_G_F _d_a_t_a, _e_x_t_e_n_d_e_d _v_e_r_s_i_o_n

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

     The 'juul2' data frame has 1339 rows and 8 columns; extended
     version of |juul|.

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

     juul2

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

     This data frame contains the following columns:

     '_a_g_e' a numeric vector (years).

     '_h_e_i_g_h_t' a numeric vector (cm).

     '_m_e_n_a_r_c_h_e' a numeric vector. Has menarche occurred (code 1: no, 2:
          yes)?

     '_s_e_x' a numeric vector (1: boy, 2: girl).

     '_i_g_f_1' a numeric vector, insulin-like growth factor (microgram per
          liter).

     '_t_a_n_n_e_r' a numeric vector, codes 1-5: Stages of puberty ad modum
          Tanner.

     '_t_e_s_t_v_o_l' a numeric vector, testicular volume (ml).

     '_w_e_i_g_h_t' a numeric vector, weight (kg).


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

     Original data.

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

     plot(igf1~age, data=juul2)

