Computing a Cox model
We have a dataset of lung cancer patients. We want to know if their performance score (variable performance) is associated with their survival time.
The performance score measures how well a patient can perform usual daily activities (bad=0, good=100).
The survival package and the dat dataset are already loaded for you.
This exercise is part of the course
Survival Analysis in R
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Compute Cox model
cxmod <- ___(Surv(time, status) ~ ___, data = dat)
# Show model coefficient
coef(___)