Variables

Abbreviation

Description

1

CRIM

Per capita crime rate

2

ZN

Proportion of residential land zoned for lots over 25,000 squared feet

3

INDUS

Proportion of non-retail business acres per town

4

CHAS

Charles River dummy variable (= 1 if tract bounds river; 0 otherwise)

5

NOX

Nitric oxides concentration (parts per 10 million)

6

RM

Average number of rooms per dwelling

7

AGE

Proportion of owner-occupied units built prior to 1940

8

DIS

Weighted distances to five Boston employment centers

9

RAD

Index of accessibility to radial highways

10

TAX

Full-value property-tax rate per $10,000

11

PTRATIO

Pupil-teacher ratio by town

12

B

where is the proportion of blacks by town

13

LSTAT

Percentage of lower status of the population

14

MEDV

Median value of owner-occupied homes in $1000’s