How to create a List of Sets in R - Step by Step Examples

How to create a List of Sets in R ?

In R, you can create a list of sets using the list function for the outer list and the unique function for the inner sets.

In this example,

We create two inner sets named set1 and set2 using the unique function.
We create an outer list named list_of_sets using the list function and initialize it with the inner sets.
Finally, we iterate through the list of sets and print each set to standard output.

set1 <- unique(c(1, 2, 3))
set2 <- unique(c('a', 'b', 'c'))

list_of_sets <- list(set1, set2)

for (s in list_of_sets) {
  print(s)
}

[1, 2, 3]
['a', 'b', 'c']

In this example,

We create an empty outer list named list_of_empty_sets using the list function.
We add two empty sets to the outer list using the unique function.
Finally, we iterate through the list of sets with empty inner sets and print each set to standard output.

list_of_empty_sets <- list(unique(c()), unique(c()))

for (s in list_of_empty_sets) {
  print(s)
}

integer(0)
character(0)

In this tutorial, we learned How to create a List of Sets in R language with well detailed examples.