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.

Deze oefening maakt deel uit van de cursus

Survival Analysis in R

Cursus bekijken

Praktische interactieve oefening

Probeer deze oefening eens door deze voorbeeldcode in te vullen.

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

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

Code bewerken en uitvoeren