These data are used in the book "Computational Statistics" 
by G.H. Givens and J.A. Hoeting.

Name: drugabuse.dat
Chapter: 12
Discussed in: Example 12.2

Source: D. W. Hosmer and S. Lemeshow (2000), "Applied Logistic
Regression", Wiley.

Description: The response is whether a patient remained drug free for
one year (yes=1, no=0).  The predictors are the patient age and the
number of prior drug abuse treatments.  Data are given for 575 patients.

Variable labels: drugfree, numtreatments, age