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.

This exercise is part of the course

Survival Analysis in R

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Exercise instructions

Create a Surv object with the two variables describing the duration and censoring information of the GBSG2 dataset.
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.

Hands-on interactive exercise

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

# Create Surv-Object
sobj <- Surv(___, ___)

# Look at 10 first elements
___[___:___]

# Look at summary
___(sobj)

# Look at structure
___(___)

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