Boston {MASS} | R Documentation |
The Boston
data frame has 506 rows and 14 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 $1000 |
This data frame contains the following columns:
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.