Table 1.
Description of features of the dataset
| Feature | Attribute name | Domain | Data type | Mean | STD | Missing Values (%) |
|---|---|---|---|---|---|---|
| Age | age | Age in years :29-77 | Real | 54 | 9 | 0.00 |
| Sex | sex | Male=1 ,Female=0 | Binary | 0.00 | ||
| Chest pain type | cp | 1=typical angina | Nominal | 0.00 | ||
| 2=atypical angina | ||||||
| 3=non-anginal pain | ||||||
| 4=asymptomatic | ||||||
| Resting Blood Pressure in mm/Hg | trestbps | 94-200 | Real | 131.344 | 17.862 | 6.41 |
| Serum Cholesterol in mg/dl | chol | 126-564 | Real | 249.659 | 51.686 | 3.26 |
| Fasting blood sugar > 120 mg/dl | fbs | 1=yes,0=no | Binary | 9.78 | ||
| Resting ECG observations | restecg | 0=normal | Nominal | 0.22 | ||
| 1=having ST-T wave abnormality (T wave inversions and/or ST elevation or depression of > 0.05 mV) | ||||||
| 2=showing probable or definite left ventricular hypertrophy by Estes’ criteria | ||||||
| Maximum heart rate achieved | thalach | 71-202 | Real | 149.678 | 23.166 | 5.98 |
| Exercise-induced angina | exang | 1=yes,0=no | Binary | 5.98 | ||
| ST depression induced by angina relative to rest | oldpeak | 0-6.2 | Real | 1.05 | 1.145 | 6.74 |
| Slope of the peak exercise ST segment | slope | 1=upsloping | Ordered | 33.58 | ||
| 2= flat | ||||||
| 3=downsloping | ||||||
| Number of major vessels colored by fluoroscopy | ca | Number of vessels: 0,1,2,3 | Real | 66.43 | ||
| Thallium stress test result | thal | 3 = normal; 6 = fixed defect; | Nominal | 52.83 | ||
| 7 = reversible defect |