How to Remove Items from Vector based on a Condition in R - Step by Step Examples
How to Remove Items from Vector based on a Condition in R ?
Answer
To remove items from a vector based on a condition in R, you can use the subset
function or indexing with logical vectors.
✐ Examples
1 Remove Items Using subset Function
In this example,
- We start by creating a vector named
vec
with some integer values. - We use the
subset
function to subset the vector based on a condition. The condition is specified using a logical expression where we want to keep elements less than 30. - We store the result in a new vector named
vec_new
. - Finally, we print the new vector to see the result.
R Program
vec <- c(10, 20, 30, 40, 50)
vec_new <- subset(vec, vec < 30)
print(vec_new)
Output
[1] 10 20
2 Remove Items Using Indexing with Logical Vectors
In this example,
- We start by creating a vector named
vec
with some integer values. - We create a logical vector based on the condition that elements should be less than 30.
- We use this logical vector to index the original vector, effectively selecting only those elements that satisfy the condition.
- We store the result in a new vector named
vec_new
. - Finally, we print the new vector to see the result.
R Program
vec <- c(10, 20, 30, 40, 50)
logical_vector <- vec < 30
vec_new <- vec[logical_vector]
print(vec_new)
Output
[1] 10 20
Summary
In this tutorial, we learned How to Remove Items from Vector based on a Condition in R language with well detailed examples.
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