This is data of people who got heart attacks, it contains 76 attributes, but all published experiments refer to using a subset of 14 of them. In particular, the Cleveland database is the only one that has been used by ML researchers to this date. The "target" field refers to the presence of heart disease in the patient. < Data Information 1) age 2) sex 3) chest pain type (4 values) 4) resting blood pressure 5) serum cholestoral in mg/dl 6)fasting blood sugar > 120 mg/dl 7) resting electrocardiographic results (values 0,1,2) 8) maximum heart rate achieved 9) exercise induced angina 10) oldpeak = ST depression induced by exercise relative to rest 11)the slope of the peak exercise ST segment 12) number of major vessels (0-3) colored by flourosopy 13) thal: 0 = normal; 1 = fixed defect; 2 = reversable defect 14) target: 0= less chance of heart attack 1= more chance of heart attack