Graphic tree in ggplot in R

Question

I wonder if it is possible to build a ggplot tree? let's say:

library(rpart
library(rpart.plot)

data(iris)
mod <- rpart(Species~., data=iris)
prp(mod)

Is it possible to build a similar graph in ggplot?

Answer 1

The feature autoplot.rpart()in the package survMisccan help you with this. But you will probably need to clear the presentation of the plot, potentially stratification in characters, etc. This seems to be just the starting point:

library(rpart)
library(survMisc)

data(iris)
mod <- rpart(Species~., data=iris)

autoplot(mod, branch=0)