Load and return data from the Veterans’ Administration Lung Cancer Trial
The dataset has 137 samples and 6 features. The endpoint is death, which occurred for 128 patients (93.4%).
See  for further description.
x (pandas.DataFrame) – The measurements for each patient.
y (structured array with 2 fields) – Status: boolean indicating whether the endpoint has been reached or the event time is right censored.
Survival_in_days: total length of follow-up