lung_cancer: A synthetic lung cancer data.
In Penncil/SAT: Surrogate Assisted Two-wave Case Boosting Sampling

Survival status of patients with lung cancer. The study includes 10,000 patients with their survival status, surrogate phenotypes, age at diagnosis, tumor stage and gender. We use it as an illustration example to show the usage of SAT functions. In most situations, the status of patients only available for a small amount of patients, and here we make this observation to be available for all patients to simulate the proposed sampling procedure.

1	lung_cancer

A data frame with 10,000 rows and 5 columns:

status: survival status with 1 = dead and 0 = alive.
surrogate: a surrogate of survival status with 1 = dead and 0 = alive. The sensitivity is set to be 0.85 and the specificity is set to be 0.95.
age: standardized patient age at diagnosis.
tumor stage: tumor stage with stage I = 1 and stage II = 0.
gender: patient gender with female = 1 and male = 0.