Derek Lee - 1 year ago 61

R Question

I'm trying to generate permutations by taking 1 value from 3 different lists

`l <- list(A=c(1:13), B=c(1:5), C=c(1:3))`

Desired result => Matrix of all the permutations where the first value can be 1-13, second value can be 1-5, third value can be 1-3

I tried using permn from the combinat package, but it seems to just rearrange the 3 lists.

`> permn(l)`

[[1]]

[[1]]$A

[1] 1 2 3 4 5 6 7 8 9 10 11 12 13

[[1]]$B

[1] 1 2 3 4 5

[[1]]$C

[1] 1 2 3

[[2]]

[[2]]$A

[1] 1 2 3 4 5 6 7 8 9 10 11 12 13

[[2]]$C

[1] 1 2 3

[[2]]$B

[1] 1 2 3 4 5

....

Expected output

`[,1] [,2] [,3]`

[1,] 1 1 3

[2,] 1 2 1

[3,] 1 1 2

[4,] 1 1 3

and so on...

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