| Attribute | Description |
| Age | Age is in year. |
| Sex | Value (“0” = male, “1” = female). |
| CP | Chest pain type (“1” = typical angina, “2” = atypical angina, “3” = non-angina pain, “4” = asymptomatic). |
| Trestbps | Resting blood pressure in mm Hg. |
| Chol | Serum cholesterol in mg/dl. |
| Fbs | Indicator of whether fasting blood sugar was > 120 mg/dl (“1” = yes, ”0” = no). |
| Restecg | Resting electrocardiographic results (“0” = normal, “1” = ST-T wave abnormality, “2” = probable or definite left ventricular hypertrophy). |
| Thalach | Maximum heart rate achieved. |
| Exang | Indicator of whether the angina is exercise induced (“1” = yes, “0” = no). |
| Oldpeak | ST depression induced by exercise relative to rest. |
| Slope | The slope of the peak exercise ST segment (“1” = up sloping, “2” = flat, “3” = down sloping). |
| Ca | Number of major vessels colored by fluoroscopy. |
| Thal | Summary of heart condition (“3” = normal, “6” = fixed defect, “7” = reversible defect). |
| Num | “The Disease Diagnosis” field refers to the presence of heart disease in the patient. It is integer valued from 0 (no presence) to 4. Here the H0 is denoting no presences of heart disease and H1, H2, H3, and H4 are presenting the presence of heart disease. |