Exercise

# Comparing Weibull and Log-Normal Model II

In this exercise, we want to compare the survival curves estimated by a Weibull model and by a log-normal model for the GBSG2 data. This exercise shows how the estimates change if you use a different distribution.

The `survival`

, `survminer`

, and `reshape2`

packages and the `GBSG2`

data are loaded for you in this exercise.

Instructions

**100 XP**

- Plot the survival curves using the
`ggsurvplot_df()`

function. The`linetype`

should correspond to the hormonal therapy and the`color`

to the distribution (`dist`

).