Data frame:boston

506 observations and 19 variables, maximum # NAs:0

Name	Labels	Units	Levels	Storage
town			92	integer
tract				double
longitude				double
latitude				double
value	Median value of owner-occupied homes / $1000			double
cmedv				double
crime	Per capita crime rate			double
residential	% residential land zoned for lots > 25,000ft^2			double
industrial	% non-retail business acres			double
river			2	integer
nox	Nitric Oxides concentration	pp10m		double
rooms	Average no. rooms per dwelling			double
older	% owner-occupied units built before 1940			double
distance	Weighted distances to five Boston employment centers			double
highway	Radial highway accessiblity index			double
tax	Full-value property tax rate per $10,000			double
ptratio	Pupil-teacher ratio			double
lstat	% Population in lower socio-economic status			double
black	% Black residents			double