A data frame with multiple rows and 14 columns representing different features related to heart disease diagnosis.
age: Age in years (integer).
sex: Sex (1 = male; 0 = female) (categorical).
cp: Chest pain type (categorical).
trestbps: Resting blood pressure (in mm Hg on admission to the hospital) (integer).
chol: Serum cholesterol in mg/dl (integer).
fbs: Fasting blood sugar > 120 mg/dl (1 = true; 0 = false) (categorical).
restecg: Resting electrocardiographic results (categorical).
thalach: Maximum heart rate achieved (integer).
exang: Exercise-induced angina (1 = yes; 0 = no) (categorical).
oldpeak: ST depression induced by exercise relative to rest (integer).
slope: The slope of the peak exercise ST segment (categorical).
ca: Number of major vessels (0-3) colored by fluoroscopy (integer).
thal: Thalassemia (3 = normal; 6 = fixed defect; 7 = reversible defect) (categorical).
num: Diagnosis of heart disease (angiographic disease status) (integer).