Discarding duplicate rows from a data frame - R

Question

I am working with the iris data-set:

       Sepal.Length Sepal.Width Petal.Length Petal.Width Species
1          5.1         3.5          1.4         0.2      setosa
2          4.9         3.0          1.4         0.2      setosa
3          4.7         3.2          1.3         0.2      setosa
4          4.6         3.1          1.5         0.2      setosa
5          5.0         3.6          1.4         0.2      setosa
6          5.4         3.9          1.7         0.4      setosa

I would want to discard off those rows where there are duplicated values of  "Sepal.Length" and "Sepal.Width" together or in other words no two rows should have the same "Sepal.Length" and "Sepal.Width" values.

Answer 1

You can use distinct() function along with %>% to remove duplicate rows:

iris %>% distinct(Sepal.Length, Sepal.Width, .keep_all = T)->iris_1

With the above command, we are filtering out those rows which would have the same values for "Sepal.Length" and "Sepal.Width".