Count number of vector values in range with R (original) (raw)

Last Updated : 28 Sep, 2021

In this article, we will see how to count the number of vector values present in the given range in R. To achieve this functionality we can follow the following approach.

Approach

Implementation using this approach is given below.

Example 1:

R `

declaring a integer point vector

vec <- c(1,12,3,14,-1,-3)

specifying the range to check the element in

min_range = -2 max_range = 8

computing the size of the vector

size = length(vec)

declaring sum =0 as the count of elements in range

sum = 0

looping over the vector elements

for(i in 1:size) {

check if elements lies in the range provided

if(vec[i]>=min_range && vec[i]<=max_range)

incrementing count of sum if condition satisfied

sum =sum+1

}

print ("Sum of elements in range : ") print (sum)

`

Output

[1] "Sum of elements in range : "

[1] 3

Example 2:

R `

declaring a integer point vector

vec <- c(1,12,3,14,-1,-3,0.1)

specifying the range to check the element in

min_range = -2 max_range = 8 print ("Sum of elements in specified range : ")

and operator check if the element is less than

max range and greater than min range

sum(vec>min_range & vec<max_range)

`

Output

[1] "Sum of elements in specified range : "

[1] 4

However, if any of the elements of the vector is NA, then sum() method returns NA as the output. It can be ignored by specifying na.rm=TRUE.

Example 3:

R `

declaring a integer point vector

vec <- c(1,12,3,14,NA,-3,0.1)

specifying the range to check the element in

min_range = -2 max_range = 8 print ("Sum of elements in specified range without ignoring NA: ")

and operator check if the element is less than

max range and greater than min range

sum(vec>min_range & vec<max_range)

print ("Sum of elements in specified range ignoring NA: ") sum(vec>min_range & vec<max_range,na.rm=TRUE)

`

Output

[1] "Sum of elements in specified range without ignoring NA: "

[1] NA

[1] "Sum of elements in specified range ignoring NA: "

[1] 3