/******************* chd97a.sps ************************/
set width=80 length=none.
title 'Simple logistic regression on CHD Data using SPSS'.

data list  file = 'chd.dat'  free
     /id agegroup age chd.
variable labels
     id  'Patient Identification number'
     agegroup 'Patient Age Category'
     age  'Patient''s Age'
     chd  'Coronary Heart Disease' .
value labels
     agegroup  1 '20-29'   2 '30-34'   3 '35-39'   4 '40-44'
               5 '45-49'   6 '50-54'   7 '55-59'   8 '60-69'/
     chd  1 'Yes'   0 'No' .

logistic regression  chd with age.