How to remove names from a named vector in R?

R ProgrammingServer Side ProgrammingProgramming

To assign names to the values of vector, we can use names function and the removal of names can be done by using unname function. For example, if we have a vector x that has elements with names and we want to remove the names of those elements then we can use the command unname(x).

Example1

Live Demo

> x1<-1:50
> names(x1)<-sample(LETTERS[1:26],50,replace=TRUE)
> x1

Output

G K N V P F F A P D L N K J V H S L F C M F H T I V
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
V R M K Y I N L N F Y A C U H P T Z Z L K E L Y
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Example

> unname(x1)

Output

[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
[26] 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

Example2

Live Demo

> x2<-rnorm(50)
> names(x2)<-1:50
> x2

Output

1 2 3 4 5 6
0.320434495 0.697341366 -0.690851096 -0.270470664 0.627552623 -0.670351573
7 8 9 10 11 12
0.416694153 0.135341529 -0.816141877 0.019222881 2.384280752 0.463381965
13 14 15 16 17 18
0.457718741 -1.220411217 0.286602691 2.023790519 -1.085566255 0.152970726
19 20 21 22 23 24
-0.949894774 0.905011951 0.479692477 1.431115243 -0.177645423 0.088219179
25 26 27 28 29 30
0.741544429 -0.306062256 -1.050278580 0.068178519 0.007891684 1.299952984
31 32 33 34 35 36
-0.118316910 -0.521622484 -0.028755947 1.305090322 -0.822214412 0.873313547
37 38 39 40 41 42
1.292973504 0.241589346 -0.688928369 -0.861205190 -0.311398855 1.338483253
43 44 45 46 47 48
-1.094867950 0.599904648 1.379982149 0.407302328 -0.855550788 -0.132740032
49 50
-0.709800907 -1.346831730

Example

> unname(x2)

Output

[1] 0.320434495 0.697341366 -0.690851096 -0.270470664 0.627552623
[6] -0.670351573 0.416694153 0.135341529 -0.816141877 0.019222881
[11] 2.384280752 0.463381965 0.457718741 -1.220411217 0.286602691
[16] 2.023790519 -1.085566255 0.152970726 -0.949894774 0.905011951
[21] 0.479692477 1.431115243 -0.177645423 0.088219179 0.741544429
[26] -0.306062256 -1.050278580 0.068178519 0.007891684 1.299952984
[31] -0.118316910 -0.521622484 -0.028755947 1.305090322 -0.822214412
[36] 0.873313547 1.292973504 0.241589346 -0.688928369 -0.861205190
[41] -0.311398855 1.338483253 -1.094867950 0.599904648 1.379982149
[46] 0.407302328 -0.855550788 -0.132740032 -0.709800907 -1.346831730

Example3

Live Demo

> x3<-rpois(200,5)
> x3

Output

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

Example

> names(x3)<-sample(0:1,200,replace=TRUE)
> x3

Output

1 0 0 0 1 1 1 1 1 1 0 1 1 1 0 1 1 0 0 0 1 1 1 0 0 1
9 4 4 6 6 9 8 8 2 5 1 8 3 6 2 4 4 6 3 3 7 7 6 2 5 4
1 1 0 0 1 1 0 1 1 1 0 1 0 1 0 0 1 1 1 1 1 0 0 0 0 1
3 5 5 4 7 4 4 6 4 6 2 5 6 9 10 5 9 4 5 7 2 4 5 5 1 7
1 0 0 1 0 0 0 0 1 0 0 1 1 1 0 0 1 1 1 0 1 0 0 1 1 0
6 5 0 7 5 4 1 2 4 3 3 4 2 1 3 6 5 7 5 6 7 2 6 3 8 8
1 0 1 1 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 1 1 0 1 1 0
5 4 3 3 3 8 7 3 8 2 3 6 6 5 10 8 9 5 2 4 6 5 4 6 6 9
0 0 1 1 0 1 1 0 0 1 0 0 0 1 1 0 1 0 1 0 1 1 1 0 0 1
4 3 5 4 10 1 7 5 3 7 7 4 5 8 3 3 4 6 5 7 3 7 11 6 4 6
0 1 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 0 1 1 1 0 1 1 0 0
9 7 7 5 8 0 3 6 3 6 8 8 3 5 3 6 7 4 3 6 4 4 2 5 7 3
0 0 0 0 1 0 0 0 0 0 0 1 1 0 1 0 1 1 0 0 0 1 0 1 1 1
6 2 6 5 2 2 5 6 6 4 5 5 4 11 2 3 7 4 6 7 8 7 5 6 9 3
0 1 0 0 0 1 1 0 1 1 1 1 0 0 0 1 0 1
4 8 4 2 5 6 5 3 3 4 6 9 4 3 6 4 7 3

Example

> unname(x3)

Output

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

Example4

Live Demo

> x4<-runif(50,1,5)
> x4

Output

[1] 2.411009 2.211185 1.391928 3.346429 3.132086 2.716000 2.500084 4.117285
[9] 3.513299 1.386085 4.712126 3.166818 1.613602 2.093889 4.185800 4.324013
[17] 4.807602 1.487395 1.221009 2.858887 3.183079 4.247183 1.680618 4.842318
[25] 1.104707 2.152010 1.513501 1.246102 4.083861 2.301772 1.899124 3.533562
[33] 4.567207 1.676978 1.272463 2.817372 3.833719 3.158989 4.262898 2.931992
[41] 1.983175 3.732617 4.654672 2.758082 4.614849 4.046474 3.797411 1.515049
[49] 1.607818 3.386288

Example

> names(x4)<-1:50
> x4

Output

1 2 3 4 5 6 7 8
2.411009 2.211185 1.391928 3.346429 3.132086 2.716000 2.500084 4.117285
9 10 11 12 13 14 15 16
3.513299 1.386085 4.712126 3.166818 1.613602 2.093889 4.185800 4.324013
17 18 19 20 21 22 23 24
4.807602 1.487395 1.221009 2.858887 3.183079 4.247183 1.680618 4.842318
25 26 27 28 29 30 31 32
1.104707 2.152010 1.513501 1.246102 4.083861 2.301772 1.899124 3.533562
33 34 35 36 37 38 39 40
4.567207 1.676978 1.272463 2.817372 3.833719 3.158989 4.262898 2.931992
41 42 43 44 45 46 47 48
1.983175 3.732617 4.654672 2.758082 4.614849 4.046474 3.797411 1.515049
49 50
1.607818 3.386288

Example

> unname(x4)

Output

[1] 2.411009 2.211185 1.391928 3.346429 3.132086 2.716000 2.500084 4.117285
[9] 3.513299 1.386085 4.712126 3.166818 1.613602 2.093889 4.185800 4.324013
[17] 4.807602 1.487395 1.221009 2.858887 3.183079 4.247183 1.680618 4.842318
[25] 1.104707 2.152010 1.513501 1.246102 4.083861 2.301772 1.899124 3.533562
[33] 4.567207 1.676978 1.272463 2.817372 3.833719 3.158989 4.262898 2.931992
[41] 1.983175 3.732617 4.654672 2.758082 4.614849 4.046474 3.797411 1.515049
[49] 1.607818 3.386288
raja
Published on 05-Jan-2021 06:10:12
Advertisements