Visualising a Weibull model
In this exercise we will reproduce the example from the video following the steps:
- Compute Weibull model
- Decide on "imaginary patients"
- Compute survival curves
- Create
data.framewith survival curve information - Plot
We will focus now on the last two steps.
The survival, survminer, and reshape2 packages and the GBSG2 data are loaded for you in this exercise.
The Weibull model wbmod and the imaginary patient data newdat you already computed are also available.
Den här övningen är en del av kursen
Survival Analysis in R
Interaktiv övning med praktiskt arbete
Testa den här övningen genom att slutföra den här exempelkoden.
# Use cbind() to combine the information in newdat with t
surv_wbmod_wide <- cbind(newdat, t)
# Use melt() to bring the data.frame to long format
surv_wbmod <- melt(surv_wbmod_wide, id.vars = c("___", "___"), variable.name = "surv_id", value.name = "___")