Cars93                 package:MASS                 R Documentation

_D_a_t_a _f_r_o_m _9_3 _C_a_r_s _o_n _S_a_l_e _i_n _t_h_e _U_S_A _i_n _1_9_9_3

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

     The `Cars93' data frame has 93 rows and 27 columns.

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

     data(Cars93)

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

     This data frame contains the following columns:

     `_M_a_n_u_f_a_c_t_u_r_e_r' Manufacturer

     `_M_o_d_e_l' Model

     `_T_y_p_e' Type: Small, Sporty, Compact, Midsize, Large, Van

     `_M_i_n._P_r_i_c_e' Minimum Price (in $1,000) - price for a basic version

     `_P_r_i_c_e' Midrange Price (in $1,000) - average of `Min.Price' and
          `Max.Price'

     `_M_a_x._P_r_i_c_e' Maximum Price (in $1,000) - price for ``a premium
          version''

     `_M_P_G._c_i_t_y' City MPG (miles per US gallon by EPA rating)

     `_M_P_G._h_i_g_h_w_a_y' Highway MPG

     `_A_i_r_B_a_g_s' Air Bags standard. Factor: none, driver only, or driver
          & passenger

     `_D_r_i_v_e_T_r_a_i_n' Drive train type: rear wheel, front wheel or 4WD;
          (factor).

     `_C_y_l_i_n_d_e_r_s' Number of cylinders (missing for Mazda RX-7, which has
          a rotary engine).

     `_E_n_g_i_n_e_S_i_z_e' Engine size (litres)

     `_H_o_r_s_e_p_o_w_e_r' Horsepower (maximum)

     `_R_P_M' RPM (revs per minute at maximum horsepower)

     `_R_e_v._p_e_r._m_i_l_e' Engine revolutions per mile (in highest gear)

     `_M_a_n._t_r_a_n_s._a_v_a_i_l' Is a manual transmission version available? (yes
          or no, Factor).

     `_F_u_e_l._t_a_n_k._c_a_p_a_c_i_t_y' Fuel tank capacity (US gallons)

     `_P_a_s_s_e_n_g_e_r_s' Passenger capacity (persons)

     `_L_e_n_g_t_h' Length  (inches)

     `_W_h_e_e_l_b_a_s_e' Wheelbase (inches)

     `_W_i_d_t_h' Width (inches)

     `_T_u_r_n._c_i_r_c_l_e' U-turn space (feet)

     `_R_e_a_r._s_e_a_t._r_o_o_m' Rear seat room (inches) (missing for 2-seater
          vehicles)

     `_L_u_g_g_a_g_e._r_o_o_m' Luggage capacity (cubic feet) (missing for vans)

     `_W_e_i_g_h_t' Weight (pounds)

     `_O_r_i_g_i_n' Of non-USA or USA company origins? (factor)

     `_M_a_k_e' Combination of Manufacturer and Model (character)

_D_e_t_a_i_l_s:

     Cars were selected at random from among 1993 passenger car models
     that were listed in both the Consumer Reports issue and the  PACE
     Buying Guide.  Pickup trucks and Sport/Utility vehicles were
     eliminated due to incomplete information in the Consumer Reports
     source.  Duplicate models (e.g., Dodge Shadow and Plymouth
     Sundance) were listed at most once.

     Further description can be found in Lock (1993). Use the URL <URL:
     http://jse.stat.ncsu.edu/jse/v1n1/datasets.lock> or send the
     message `send jse/v1n1/datasets.lock' to the email address
     archive@jse.stat.ncsu.edu

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

     Lock, R. H. (1993) 1993 New Car Data. Journal of Statistics
     Education 1(1)

