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How to remove names from a named vector in R?
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
> 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
> 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
> 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
> 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
Updated on: 05-Jan-2021
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