Load and return the breast cancer dataset
The dataset has 198 samples and 80 features. The endpoint is the presence of distance metastases, which occurred for 51 patients (25.8%).
x (pandas.DataFrame) – The measurements for each patient.
y (structured array with 2 fields) – e.tdm: boolean indicating whether the endpoint has been reached or the event time is right censored.
t.tdm: time to distant metastasis (days)