How can I use ggdag to plot backdoor paths only?
For instance, given the following code:
library(ggdag)
tidy_ggdag <- dagify(
y ~ t + x1,
t ~ x1,
exposure = "t",
outcome = "y"
) %>% tidy_dagitty()
ggdag_paths(tidy_ggdag) + theme_dag()
It plots all open paths, not only backdoor ones:
