Boston                 package:MASS                 R Documentation

_H_o_u_s_i_n_g _V_a_l_u_e_s _i_n _S_u_b_u_r_b_s _o_f _B_o_s_t_o_n

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

     The `Boston' data frame has 506 rows and 14 columns.

_A_r_g_u_m_e_n_t_s:

    crim: per capita crime rate by town 

      zn: proportion of residential land zoned for lots over 25,000
          sq.ft. 

   indus: proportion of non-retail business acres per town 

    chas: Charles River dummy variable (= 1 if tract bounds river; 0
          otherwise) 

     nox: nitrogen oxides concentration (parts per 10 million) 

      rm: average number of rooms per dwelling 

     age: proportion of owner-occupied units built prior to 1940 

     dis: weighted mean of distances to five Boston employment centres 

     rad: index of accessibility to radial highways 

     tax: full-value property-tax rate per $10,000 

 ptratio: pupil-teacher ratio by town 

   black: 1000(Bk - 0.63)^2 where Bk is the proportion of blacks by
          town 

   lstat: lower status of the population (percent) 

    medv: median value of owner-occupied homes in $1000 

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

     This data frame contains the following columns:

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

     Harrison, D. and Rubinfeld, D.L. (1978) Hedonic prices and the
     demand for clean air. J. Environ. Economics and Management 5,
     81-102.

     Belsley D.A., Kuh, E.  and Welsch, R.E. (1980) Regression
     Diagnostics. Identifying Influential Data and Sources of
     Collinearity. New York: Wiley.

