Computing a Weibull model and the survival curves

In this exercise we will reproduce the example from the video using the following steps:

Compute Weibull model
Decide on "imaginary patients"
Compute survival curves
Create data.frame with survival curve information
Plot

In this exercise, we will focus on the first three steps. The next exercise will cover the remaining steps.

The survival, survminer, and reshape2 packages and the GBSG2 data are loaded for you in this exercise.

This exercise is part of the course

Survival Analysis in R

View Course

Hands-on interactive exercise

Have a go at this exercise by completing this sample code.

# Weibull model
wbmod <- survreg(___ ~ ___ + ___, data = GBSG2)

# Imaginary patients
newdat <- expand.grid(
  horTh = levels(GBSG2$___),
  tsize = quantile(GBSG2$___, probs = c(___, ___, ___)))
newdat

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