How to find the raise to the power of all values in an R vector?

Question

How to find the raise to the power of all values in an R vector?

R ProgrammingServer Side ProgrammingProgramming

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Often, we need to find the power of a value or the power of all values in an R vector, especially in cases when we are dealing with polynomial models. This can be done by using ^ sign as we do in Excel. For example, if we have a vector x then the square of all values in x can be found as x^2.

Example

 Live Demo

x1<-1:10
x1

Output

[1] 1 2 3 4 5 6 7 8 9 10

Example

square_x1<-x1^2
square_x1

Output

[1] 1 4 9 16 25 36 49 64 81 100

Example

 Live Demo

x2<-rpois(50,2)
x2

Output

[1] 5 3 4 2 1 8 1 4 0 2 3 5 2 3 4 6 3 3 4 2 4 3 2 1 1 0 1 0 2 1 1 0 1 1 4 2 3 4
[39] 1 2 2 2 1 1 6 0 4 1 3 2

Example

square_x2

Output

[1] 25 9 16 4 1 64 1 16 0 4 9 25 4 9 16 36 9 9 16 4 16 9 4 1 1
[26] 0 1 0 4 1 1 0 1 1 16 4 9 16 1 4 4 4 1 1 36 0 16 1 9 4

Example

 Live Demo

x3<-rpois(100,10)
x3

Output

[1] 9 10 12 15 12 7 10 11 9 9 13 7 8 11 7 12 11 12 7 10 9 4 12 11 8
[26] 9 10 16 12 9 11 8 9 8 8 10 7 11 7 11 16 9 10 10 11 14 11 12 7 9
[51] 4 14 4 13 11 13 9 9 13 6 15 11 11 7 10 19 12 6 11 14 11 7 7 16 8
[76] 9 9 5 15 12 7 9 10 10 9 14 3 9 12 12 13 9 11 9 9 15 10 15 5 8

Example

x3_power_3<-x3^3
x3_power_3

Output

[1] 729 1000 1728 3375 1728 343 1000 1331 729 729 2197 343 512 1331 343
[16] 1728 1331 1728 343 1000 729 64 1728 1331 512 729 1000 4096 1728 729
[31] 1331 512 729 512 512 1000 343 1331 343 1331 4096 729 1000 1000 1331
[46] 2744 1331 1728 343 729 64 2744 64 2197 1331 2197 729 729 2197 216
[61] 3375 1331 1331 343 1000 6859 1728 216 1331 2744 1331 343 343 4096 512
[76] 729 729 125 3375 1728 343 729 1000 1000 729 2744 27 729 1728 1728
[91] 2197 729 1331 729 729 3375 1000 3375 125 512

Example

 Live Demo

x4<-rpois(100,10)
x4

Output

[1] 13 10 11 8 12 12 7 11 6 11 8 13 9 11 8 3 4 7 11 14 7 9 8 12 8
[26] 6 11 8 12 6 9 5 11 9 10 12 9 5 6 10 9 13 13 8 14 6 9 14 12 10
[51] 8 9 9 4 11 11 11 8 12 9 9 6 9 7 9 6 5 13 8 10 8 4 10 10 7
[76] 16 8 13 11 8 6 13 12 8 7 11 9 8 14 8 5 9 12 7 6 9 11 14 14 8

Example

x4_power_1_by_4<-x4^(1/4)
x4_power_1_by_4

Output

[1] 1.898829 1.778279 1.821160 1.681793 1.861210 1.861210 1.626577 1.821160
[9] 1.565085 1.821160 1.681793 1.898829 1.732051 1.821160 1.681793 1.316074
[17] 1.414214 1.626577 1.821160 1.934336 1.626577 1.732051 1.681793 1.861210
[25] 1.681793 1.565085 1.821160 1.681793 1.861210 1.565085 1.732051 1.495349
[33] 1.821160 1.732051 1.778279 1.861210 1.732051 1.495349 1.565085 1.778279
[41] 1.732051 1.898829 1.898829 1.681793 1.934336 1.565085 1.732051 1.934336
[49] 1.861210 1.778279 1.681793 1.732051 1.732051 1.414214 1.821160 1.821160
[57] 1.821160 1.681793 1.861210 1.732051 1.732051 1.565085 1.732051 1.626577
[65] 1.732051 1.565085 1.495349 1.898829 1.681793 1.778279 1.681793 1.414214
[73] 1.778279 1.778279 1.626577 2.000000 1.681793 1.898829 1.821160 1.681793
[81] 1.565085 1.898829 1.861210 1.681793 1.626577 1.821160 1.732051 1.681793
[89] 1.934336 1.681793 1.495349 1.732051 1.861210 1.626577 1.565085 1.732051
[97] 1.821160 1.934336 1.934336 1.681793

Example

 Live Demo

x5<-rpois(100,10)
x5

Output

[1] 12 9 16 11 10 6 12 16 15 14 7 5 6 14 6 8 10 11 14 10 10 6 9 11 13
[26] 12 11 20 7 7 5 18 11 13 7 15 15 6 9 10 13 6 6 7 8 8 16 10 7 9
[51] 12 4 8 9 7 9 10 14 13 21 7 14 5 9 9 13 7 6 12 11 10 12 6 14 8
[76] 11 7 9 8 10 9 12 15 8 6 7 8 4 12 10 9 11 11 11 15 7 10 12 16 12

Example

x5_power_3_by_4<-x5^(3/4)
x5_power_3_by_4

Output

[1] 6.447420 5.196152 8.000000 6.040105 5.623413 3.833659 6.447420 8.000000
[9] 7.621991 7.237624 4.303517 3.343702 3.833659 7.237624 3.833659 4.756828
[17] 5.623413 6.040105 7.237624 5.623413 5.623413 3.833659 5.196152 6.040105
[25] 6.846325 6.447420 6.040105 9.457416 4.303517 4.303517 3.343702 8.738852
[33] 6.040105 6.846325 4.303517 7.621991 7.621991 3.833659 5.196152 5.623413
[41] 6.846325 3.833659 3.833659 4.303517 4.756828 4.756828 8.000000 5.623413
[49] 4.303517 5.196152 6.447420 2.828427 4.756828 5.196152 4.303517 5.196152
[57] 5.623413 7.237624 6.846325 9.809898 4.303517 7.237624 3.343702 5.196152
[65] 5.196152 6.846325 4.303517 3.833659 6.447420 6.040105 5.623413 6.447420
[73] 3.833659 7.237624 4.756828 6.040105 4.303517 5.196152 4.756828 5.623413
[81] 5.196152 6.447420 7.621991 4.756828 3.833659 4.303517 4.756828 2.828427
[89] 6.447420 5.623413 5.196152 6.040105 6.040105 6.040105 7.621991 4.303517
[97] 5.623413 6.447420 8.000000 6.447420

Example

 Live Demo

x6<-sample(1:10,100,replace=TRUE)
x6

Output

[1] 5 5 9 8 2 9 5 4 7 10 6 5 1 2 7 3 6 1 3 4 3 10 4 3 6
[26] 8 8 2 8 4 1 8 4 8 2 3 4 1 8 10 8 8 6 3 7 2 9 9 6 10
[51] 7 8 1 9 5 2 5 2 8 3 1 6 2 3 5 1 2 4 5 1 5 4 6 9 7
[76] 2 4 3 2 7 6 5 1 9 10 6 7 1 2 5 10 5 5 6 4 6 1 4 8 9

Example

x6_2<-x6^2
x6_2

Output

[1] 25 25 81 64 4 81 25 16 49 100 36 25 1 4 49 9 36 1
[19] 9 16 9 100 16 9 36 64 64 4 64 16 1 64 16 64 4 9
[37] 16 1 64 100 64 64 36 9 49 4 81 81 36 100 49 64 1 81
[55] 25 4 25 4 64 9 1 36 4 9 25 1 4 16 25 1 25 16
[73] 36 81 49 4 16 9 4 49 36 25 1 81 100 36 49 1 4 25
[91] 100 25 25 36 16 36 1 16 64 81

Example

 Live Demo

x7<-rnorm(50,5,10)
x7

Output

[1] 3.2380130 -5.5553674 17.3906895 16.2782636 -1.8551276 22.5405542
[7] 7.8591889 4.0376126 10.3603525 -2.0983122 7.7640085 8.0753874
[13] -3.2625302 9.4534281 -0.4951846 -9.4298196 2.7521265 8.0154121
[19] 6.7455055 -0.8284140 2.7099639 14.9538382 12.0254986 -5.6911766
[25] 3.8437799 11.9242421 -11.7194797 6.6024536 -2.7468949 6.1553066
[31] -5.3897772 6.7756489 21.8886362 16.7859536 1.1068733 -5.7264846
[37] 1.0465364 -3.4498760 -1.5594048 -20.0699144 6.6783996 17.1561048
[43] 7.5514595 21.1906289 4.9587869 8.1482000 6.6485102 -2.1266452
[49] -7.7655759 15.6812337

Example

x7_power_3<-x7^3
x7_power_3

Output

[1] 33.9496856 -171.4503457 5259.5720057 4313.4446351 -6.3844187
[6] 11452.3277148 485.4373498 65.8224351 1112.0481567 -9.2386881
[11] 468.0130992 526.6112109 -34.7267073 844.8273724 -0.1214232
[16] -838.5136714 20.8451568 514.9648182 306.9329436 -0.5685154
[21] 19.9017160 3343.9365954 1739.0388326 -184.3343100 56.7904796
[26] 1695.4787867 -1609.6260698 287.8167592 -20.7265065 233.2110260
[31] -156.5714026 311.0660965 10487.1169231 4729.7485860 1.3561062
[36] -187.7864627 1.1462069 -41.0591968 -3.7920724 -8084.1908915
[41] 297.8634392 5049.5894784 430.6185016 9515.4983018 121.9344257
[46] 540.9847640 293.8820194 -9.6180080 -468.2966028 3856.0324360

Nizamuddin Siddiqui

Published on 09-Sep-2020 11:19:38

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