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starwars %>%
group_by(species,sex) %>%
summarise() %>%
select(unique.species=species, unique.sex=sex)
How to get unique values from 2 columns("species","sex") all together? I wrote the code above but i'm not sure it's right. Thank you
library(tidyverse)
starwars |>
select(species, sex) |>
distinct()
#> # A tibble: 41 × 2
#> species sex
#> <chr> <chr>
#> 1 Human male
#> 2 Droid none
#> 3 Human female
#> 4 Wookiee male
#> 5 Rodian male
#> 6 Hutt hermaphroditic
#> 7 Yoda's species male
#> 8 Trandoshan male
#> 9 Mon Calamari male
#> 10 Ewok male
#> # … with 31 more rows
Created on 2022-04-25 by the reprex package (v2.0.1)
library(tidyverse)
starwars %>%
expand(nesting(species, sex))
#> # A tibble: 41 × 2
#> species sex
#> <chr> <chr>
#> 1 Aleena male
#> 2 Besalisk male
#> 3 Cerean male
#> 4 Chagrian male
#> 5 Clawdite female
#> 6 Droid none
#> 7 Dug male
#> 8 Ewok male
#> 9 Geonosian male
#> 10 Gungan male
#> # … with 31 more rows
Created on 2022-04-25 by the reprex package (v2.0.1)
There are multiple options. You can use the following code:
unique(starwars[c("species", "sex")])
Output:
species sex
<chr> <chr>
1 Human male
2 Droid none
3 Human female
4 Wookiee male
5 Rodian male
6 Hutt hermaphroditic
7 Yoda's species male
8 Trandoshan male
9 Mon Calamari male
10 Ewok male
# … with 31 more rows