How to Filter Items of a Set based on a Condition in R

How to Filter Items of a Set based on a Condition in R ?

To filter items of a set based on a condition in R, you can use the subset function or logical indexing to create a new set from the filtered items.

In this example,

We create a set named numberSet using the c() function, which contains numeric values 1, 5, 10, 15, and 20.
We use the subset function with a logical condition to filter the numbers greater than 5.
We assign the filtered set to filteredSet.
Finally, we print filteredSet to see the filtered items.

numberSet <- c(1, 5, 10, 15, 20)
filteredSet <- subset(numberSet, numberSet > 5)
print(filteredSet)

[1] 10 15 20

In this example,

We create a set named stringSet using the c() function, which contains string values 'apple', 'banana', 'cherry', 'date', and 'grape'.
We use the grepl function with a regular expression to filter the strings containing the letter 'a'.
We assign the filtered set to filteredStringSet.
Finally, we print filteredStringSet to see the filtered strings.

stringSet <- c('apple', 'banana', 'cherry', 'date', 'grape')
filteredStringSet <- stringSet[grepl('a', stringSet)]
print(filteredStringSet)

[1] 'apple'  'banana' 'grape'

In this tutorial, we learned How to Filter Items of a Set based on a Condition in R language with well detailed examples.