powered by
Treatment of kidneys stones, and the result.
data(KStones)
A data frame with 8 rows (each variable combination) and 4 columns:
The number of people with the combination of the other variables
One of Small or Large, the kidney stone size
Small
Large
The method used; one of Method A or Method B
Method A
Method B
The result of the procedure; one of Success or Failure
Success
Failure