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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.

_U_s_a_g_e:

     Boston
     
_F_o_r_m_a_t:

     This data frame contains the following columns:

     '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 \$1000s.

_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.


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