Forming a set of pairs in R

Asked Feb 07 '20 at 18:23

Active Feb 07 '20 at 18:24

Viewed 27 times

I have two sets:

{a,b,c,d}  {1,2,3,4}

I would like to form a set of pairs in R:

{(a,1), (a,2), (a,3), (a,4), (b,1), (b,2), (b,3), (b,4), (c,1), (c,2), (c,3), (c,4), (d,1), (d,2), (d,3), (d,4)}

edited Feb 07 '20 at 18:24

asked Feb 07 '20 at 18:23

sandeep

Is it a `python` output or `R`. Please use `dput` and the packages used – akrun Feb 07 '20 at 18:23
4

See `?expand.grid` – markus Feb 07 '20 at 18:23
`a1 <- c("a","b","c","d"); a2 <- c(1,2,3,4); df <- expand.grid(a1, a2); df$set_of_pairs <- paste0("(", df[,1], ",", df[,2], ")")` – mikey Feb 07 '20 at 19:01

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