INS and diabetes mellitus: There are 768 observations with 9 variables as followings: Pregnant, number of times pregnant; Glucose, plasma glucose concentration (glucose tolerance test); BP, diastolic blood pressure (mm/Hg); Thickness (triceps skin fold thickness (mm)); Insulin (2-Hour serum insulin (mu U/ml); BMI (body mass index (weight in kg/(height in m) squared)); Pedigree (diabetes pedigree function); Age (Age of the patients in years); Diabetes (binary variable with 1 for Diabetes and 0 for No Diabetes).