airplane                package:Rlab                R Documentation

_D_i_s_t_a_n_c_e_s _f_l_o_w_n _b_y _p_a_p_e_r _a_i_r_p_l_a_n_e_s _i_n _a_n _e_x_p_e_r_i_m_e_n_t _w_i_t_h _f_o_u_r
_t_r_e_a_t_m_e_n_t_s.

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

     The airplane data frame has 6 rows and 4 columns.  Each data point
     is the distance flown by one of the of 24 airplanes randomly
     assigned to the four treatments described below.

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

     A data frame with 24 observations on the following 2 variables.

     _d_i_s_t_a_n_c_e : distance flown

     _t_r_e_a_t_m_e_n_t : one of four treatment values (treat1: no weighting of
          airplane nose, treat2: one paper clip on the nose, treat3:
          two paper clips on the nose or treat4: three paper clips on
          the nose)

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

     Motivated by a class experiment (but artificial).

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

     # Make side by side boxplots of the four treatments:

     bplot(airplane$distance,airplane$treatment)

