energy                 package:ISwR                 R Documentation

_E_n_e_r_g_y _e_x_p_e_n_d_i_t_u_r_e

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

     The 'energy' data frame has 22 rows and 2 columns. It contains
     data on the energy expenditure in groups of lean and obese women.

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

     This data frame contains the following columns:

     _e_x_p_e_n_d a numeric vector. 24 hour energy expenditure (MJ).

     _s_t_a_t_u_r_e a factor with levels 'lean' and  'obese'.

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

     D.G. Altman (1991), _Practical Statistics for Medical Research_,
     Table 9.4, Chapman & Hall.

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

     data(energy)
     plot(expend~stature,data=energy)

