data(income)
Explanation of the variable names:
INCOME
annual income of household
(Personal income if single) ordinal
2 SEX
sex nominal
3 MARITAL.STATUS
marital status nominal
4 AGE
age ordinal
5 EDUCATION
educational grade ordinal
6 OCCUPATION
type of work nominal
7 AREA
how long the interviewed person has lived
in the San Francisco/Oakland/San Jose area ordinal
8 DUAL.INCOMES
dual incomes (if married) nominal
9 HOUSEHOLD.SIZE
persons living in the
household ordinal
10 UNDER18
persons in household under 18 ordinal
11 HOUSEHOLDER
householder status nominal
12 HOME.TYPE
type of home nominal
13 ETHNIC.CLASS
ethnic classification nominal
14 LANGUAGE
language most often spoken at
home nominal
}