Using the Surv() function for GBSG2
In the video, we learned about the Surv() function, which generates a Surv object.
Let's look a little deeper into what a Surv object actually is. We will use the GBSG2 data again.
The survival package and GBSG2 data are loaded for you in this exercise.
Cet exercice fait partie du cours
Survival Analysis in R
Instructions
- Create a
Survobject with the two variables describing the duration and censoring information of theGBSG2dataset. - Look at the first 10 elements of the object (using indexing with squared brackets
[]). - Look at the summary (
summary()) and structure (str()) of the object.
Exercice interactif pratique
Essayez cet exercice en complétant cet exemple de code.
# Create Surv-Object
sobj <- Surv(___, ___)
# Look at 10 first elements
___[___:___]
# Look at summary
___(sobj)
# Look at structure
___(___)