

   HHoouussiinngg VVaalluueess iinn SSuubbuurrbbss ooff BBoossttoonn

   AArrgguummeenntts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 mil-
             lion)

         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 employ-
             ment 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

   SSUUMMMMAARRYY::

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

   DDAATTAA DDEESSCCRRIIPPTTIIOONN::

        This data frame contains the following columns:

   SSOOUURRCCE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) Regres-
        sion Diagnostics. Identifying Influential Data and
        Sources of Collinearity.  New York: Wiley.

