How to remove a particular value from a vector in R?

To remove a particular value from a vector, we can use negation of value.

For example, if we have a vector called V that contains repetitive values starting from 1 to 10 and if we want to remove all 10s from V then we can use the command given below −

V<-V[V!=10]

Example 1

In order to remove 0 from vector x1, use the code given below −

x1<-rpois(100,2)
x1

If you execute the above given code, it generates the following output −

[1] 1 1 1 1 3 1 1 2 3 4 2 2 1 2 2 5 2 1 4 1 2 1 2 3 1 3 1 1 4 4 3 3 4 2 0 1 1
[38] 2 1 0 0 2 5 1 1 3 1 1 2 1 1 4 1 4 0 1 0 2 2 1 2 2 1 4 2 2 2 5 4 2 0 0 1 8
[75] 1 2 4 1 2 0 0 1 0 0 2 4 1 3 1 1 3 1 3 0 2 3 1 2 8 4

Now, to remove 0 from vector x1, add the following code to the above code −

x1<-rpois(100,2)
x1<-x1[x1!=0]
x1

Output

If you execute all the above given codes as a single program, it generates the following output −

[1] 1 1 1 1 3 1 1 2 3 4 2 2 1 2 2 5 2 1 4 1 2 1 2 3 1 3 1 1 4 4 3 3 4 2 1 1 2 1
[39] 2 5 1 1 3 1 1 2 1 1 4 1 4 1 2 2 1 2 2 1 4 2 2 2 5 4 2 1 8 1 2 4 1 2 1 2 4 1
[77] 3 1 1 3 1 3 2 3 1 2 8 4

Example 2

Consider the code given below for vector x2 −

x2<-rpois(200,5)
x2

If you execute the above given code, it generates the following output −

[1] 7 5 3 8 1 6 4 5 7 4 3 5 7 5 7 8 9 7 7 10 7 5 8 4 3
[26] 3 7 9 2 4 3 4 5 5 4 8 6 6 6 2 3 5 2 3 10 2 8 11 8 7
[51] 6 2 5 7 3 5 4 3 4 10 4 6 7 4 1 6 8 6 4 4 5 4 2 3 3
[76] 6 6 5 6 8 4 15 3 4 4 5 6 6 4 2 7 3 1 8 1 10 5 8 4 6
[101] 2 3 7 3 6 5 6 4 7 2 3 4 2 7 3 5 7 2 4 5 7 6 6 3 1
[126] 9 5 5 2 8 4 6 5 5 6 5 8 7 6 2 3 7 2 1 8 5 6 10 6 4
[151] 5 6 7 6 8 0 4 9 6 11 2 6 7 4 2 7 6 6 8 6 6 5 4 6 2
[176] 9 7 5 6 9 2 6 7 10 4 3 5 3 3 8 3 2 5 6 9 6 3 4 4 8

Now, to remove 5 from vector x2, add the following code to the above code −

x2<-x2[x2!=5]
x2

Output

If you execute all the above given codes as a single program, it generates the following output −

[1] 7 3 8 1 6 4 7 4 3 7 7 8 9 7 7 10 7 8 4 3 3 7 9 2 4
[26] 3 4 4 8 6 6 6 2 3 2 3 10 2 8 11 8 7 6 2 7 3 4 3 4 10
[51] 4 6 7 4 1 6 8 6 4 4 4 2 3 3 6 6 6 8 4 15 3 4 4 6 6
[76] 4 2 7 3 1 8 1 10 8 4 6 2 3 7 3 6 6 4 7 2 3 4 2 7 3
[101] 7 2 4 7 6 6 3 1 9 2 8 4 6 6 8 7 6 2 3 7 2 1 8 6 10
[126] 6 4 6 7 6 8 0 4 9 6 11 2 6 7 4 2 7 6 6 8 6 6 4 6 2
[151] 9 7 6 9 2 6 7 10 4 3 3 3 8 3 2 6 9 6 3 4 4 8

Example 3

Consider the code given below for vector x3 −

x3<-sample(0:9,200,replace=TRUE)
x3

If you execute the above given code, it generates the following output −

[1] 4 9 7 6 3 9 8 6 2 8 0 2 7 1 3 0 8 6 2 3 4 9 9 0 5 2 4 6 3 0 3 4 3 1 3 0 3
[38] 5 9 5 8 8 3 9 8 4 5 3 5 2 3 1 4 0 8 7 3 1 8 9 5 6 4 2 5 3 1 3 1 0 9 8 5 1
[75] 8 4 4 1 5 6 8 1 5 7 0 4 3 7 0 1 4 5 4 5 2 0 5 8 8 3 0 4 0 2 0 5 6 9 8 8 6
[112] 0 2 6 4 7 7 6 1 9 7 7 2 6 3 0 5 3 5 6 0 1 6 9 2 9 5 2 9 4 5 3 5 5 6 5 1 7
[149] 6 3 4 8 2 0 0 2 7 0 1 4 1 1 6 6 2 7 2 3 7 7 9 7 6 7 3 8 1 2 2 9 8 7 8 9 2
[186] 1 8 7 6 4 0 5 2 9 3 4 2 3 7 9

Now, to remove 4 from vector x3, add the following code to the above code −

x3<-sample(0:9,200,replace=TRUE)
x3<-x3[x3!=4]
x3

Output

If you execute all the above given codes as a single program, it generates the following output −

[1] 9 7 6 3 9 8 6 2 8 0 2 7 1 3 0 8 6 2 3 9 9 0 5 2 6 3 0 3 3 1 3 0 3 5 9 5 8
[38] 8 3 9 8 5 3 5 2 3 1 0 8 7 3 1 8 9 5 6 2 5 3 1 3 1 0 9 8 5 1 8 1 5 6 8 1 5
[75] 7 0 3 7 0 1 5 5 2 0 5 8 8 3 0 0 2 0 5 6 9 8 8 6 0 2 6 7 7 6 1 9 7 7 2 6 3
[112] 0 5 3 5 6 0 1 6 9 2 9 5 2 9 5 3 5 5 6 5 1 7 6 3 8 2 0 0 2 7 0 1 1 1 6 6 2
[149] 7 2 3 7 7 9 7 6 7 3 8 1 2 2 9 8 7 8 9 2 1 8 7 6 0 5 2 9 3 2 3 7 9

Example 4

Consider the code given below for vector x4 −

x4<-sample(1:10,200,replace=TRUE)
x4

If you execute the above given code, it generates the following output −

[1] 10 2 5 6 8 10 1 5 8 4 5 6 5 8 5 10 1 1 3 6 7 9 8 7 9
[26] 1 9 4 6 10 3 1 6 6 9 8 5 1 2 8 2 8 3 5 1 9 7 2 2 10
[51] 3 10 2 6 9 4 10 2 4 4 10 8 3 3 4 10 3 4 7 1 10 10 10 10 7
[76] 6 1 3 4 4 9 9 7 7 2 9 7 2 6 2 9 4 10 5 5 2 3 10 4 5
[101] 6 3 7 4 5 9 3 10 6 2 2 2 9 3 3 9 5 8 9 10 1 2 7 6 8
[126] 10 4 10 4 2 9 2 10 8 9 6 4 7 8 2 9 7 3 3 7 5 10 10 2 1
[151] 7 2 10 6 6 9 7 10 6 5 2 7 10 4 9 3 7 4 7 2 8 5 1 1 10
[176] 8 9 9 2 4 2 9 9 10 7 4 1 5 7 9 9 2 10 8 1 1 8 5 9 10

Now, to remove 1 from vector x4, add the following code to the above code −

x4<-sample(1:10,200,replace=TRUE)
x4<-x4[x4!=1]
x4

Output

If you execute all the above given codes as a single program, it generates the following output −

[1] 10 2 5 6 8 10 5 8 4 5 6 5 8 5 10 3 6 7 9 8 7 9 9 4 6
[26] 10 3 6 6 9 8 5 2 8 2 8 3 5 9 7 2 2 10 3 10 2 6 9 4 10
[51] 2 4 4 10 8 3 3 4 10 3 4 7 10 10 10 10 7 6 3 4 4 9 9 7 7
[76] 2 9 7 2 6 2 9 4 10 5 5 2 3 10 4 5 6 3 7 4 5 9 3 10 6
[101] 2 2 2 9 3 3 9 5 8 9 10 2 7 6 8 10 4 10 4 2 9 2 10 8 9
[126] 6 4 7 8 2 9 7 3 3 7 5 10 10 2 7 2 10 6 6 9 7 10 6 5 2
[151] 7 10 4 9 3 7 4 7 2 8 5 10 8 9 9 2 4 2 9 9 10 7 4 5 7
[176] 9 9 2 10 8 8 5 9 10

Example 5

Consider the code given below for vector x5 −

x5<-rpois(200,1)
x5

If you execute the above given code, it generates the following output −

[1] 2 1 1 1 4 1 0 0 1 2 0 0 1 2 1 0 1 1 3 0 0 3 0 2 3 0 1 0 1 2 1 0 0 2 0 0 0
[38] 1 3 2 1 0 0 1 0 4 1 0 0 3 2 1 1 1 1 2 2 1 2 0 0 0 0 1 1 1 0 0 3 0 2 1 0 0
[75] 0 1 1 2 3 1 0 3 0 0 0 0 0 3 0 3 0 0 0 0 2 0 0 1 1 1 2 2 1 1 0 0 0 1 1 1 0
[112] 2 1 2 2 1 2 1 0 0 3 0 1 2 3 0 1 0 1 0 0 1 0 1 1 1 2 0 2 1 1 0 2 1 1 2 0 2
[149] 0 0 0 3 3 3 2 0 0 2 0 1 1 1 0 3 0 1 0 1 0 3 1 1 0 2 4 2 0 0 1 2 0 0 0 1 1
[186] 0 0 1 1 2 0 0 3 1 0 0 2 1 1 1

Now to remove 0 from vector x5, add the following code to the above code −

x5<-rpois(200,1)
x5<-x5[x5!=0]
x5

Output

If you execute all the above given codes as a single program, it generates the following output −

[1] 2 1 1 1 4 1 1 2 1 2 1 1 1 3 3 2 3 1 1 2 1 2 1 3 2 1 1 4 1 3 2 1 1 1 1 2 2
[38] 1 2 1 1 1 3 2 1 1 1 2 3 1 3 3 3 2 1 1 1 2 2 1 1 1 1 1 2 1 2 2 1 2 1 3 1 2
[75] 3 1 1 1 1 1 1 2 2 1 1 2 1 1 2 2 3 3 3 2 2 1 1 1 3 1 1 3 1 1 2 4 2 1 2 1 1
[112] 1 1 2 3 1 2 1 1 1

Nizamuddin Siddiqui

Updated on: 12-Nov-2021

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