Table 1: Description of variables.

VariableDescription

MEDV Median values of owner-occupied housing in thousands of USD
LON Tract point longitude in decimal degrees
LAT Tract point latitude in decimal degrees
CRIM Per capita crime
ZN Proportion of residential land zoned for lots over 25,000 sq. ft per town
INDUS Proportion of nonretail business acres per town
CHAS An indicator: 1 if tract borders Charles River;
0 otherwise
NOX Nitric oxides concentration (parts per 10 million) per town
RM Average number of rooms per dwelling
AGE Proportions of owner-occupied units built prior to 1940
DIS Weighted distance to five Boston employment centres
RAD Index of accessibility to radial highways per town
TAX Property-tax rate per USD 10,000 per town
PTRATIO Pupil-teacher ratio per town
B Calculated as 1000*(Bk−0.63)2 where Bk is the proportion of blacks
LSTAT Percentage of lower status population