kfm                   package:ISwR                   R Documentation

_B_r_e_a_s_t-_f_e_e_d_i_n_g _d_a_t_a

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

     The 'kfm' data frame has 50 rows and 7 columns. It was collected
     by Kim Fleischer Michaelsen and contains data for 50 infants of
     age approximately 2~months. They were weighed immediately before
     and after each breast feeding and the measured intake of breast
     milk was registered along with various other data.

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

     This data frame contains the following columns:

     _n_o a numeric vector. Identification number.

     _d_l._m_i_l_k a numeric vector. Breast-milk intake (dl/24h).

     _s_e_x a factor with levels 'boy' and 'girl' 

     _w_e_i_g_h_t a numeric vector. Weight of child (kg).

     _m_l._s_u_p_p_l a numeric vector. Supplementary milk substitute (ml/24h).

     _m_a_t._w_e_i_g_h_t a numeric vector. Weight of mother (kg).

     _m_a_t._h_e_i_g_h_t a numeric vector. Height of mother (cm).

_N_o_t_e:

     The amount of supplementary milk substitute refers to a period
     before the data collection.

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

     Original data.

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

     data(kfm)
     plot(dl.milk~mat.height,pch=c(1,2)[sex],data=kfm)

