Description Usage Format Source References

The response is the median value of owner-occupied homes measured for each of 506 cencus tracts in the Boston area.

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A data frame with 506 observations on the following 16 variables.

`c.medv`

numeric response variable: median value of owner-occupied homes measured in 1000's USD

`chas`

a factor with levels

`"lontano"`

and`"vicino"`

, indicating if a suburb tracts the bound of Charles river (= "lontano") or not`long`

a numeric variable: longitude

`latid`

a numeric variable: latitude of census tract

`crim`

a numeric variable: per capita crime rate per town

`zn`

a numeric variable: proportion of residential land zoned for lots over 25,000 sq.ft.

`indus`

a numeric variable: proportion of non-retail business acres per town

`nox`

a numeric variable: nitric oxides concentration (parts per 10 million)

`rm`

a numeric variable: average number of rooms per dwelling

`age`

a numeric variable: proportion of owner-occupied units built prior to 1940

`dis`

a numeric variable: weighted distances to five Boston employment centers

`rad`

a numeric variable: index of accessibility to radial highways

`tax`

a numeric variable: full-value property-tax rate per 10,000 USD

`ptratio`

a numeric variable: pupil-teacher ratio by town

`b`

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

`lstat`

a numeric variable: percentage lower status of the population

Statlib website: http://lib.stat.cmu.edu/datasets

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

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