13.10 distinct() & unique(): Extract distinct/unique rows/values

library(dplyr)
distinct(select(swiss, Education))
swiss$Education
distinct(select(swiss, Education, Examination))

# Q: How many observations do I get if I extract the distinct values of swiss$Catholic?

# ????

# This is useful when pulling out the names of all present countries in a datafile

# CLASSIC WAY
unique(swiss$Education)