Combine vectors

combine() is deprecated in favour of vctrs::vec_c(). combine() attempted to automatically guess whether you wanted c() or unlist(), but could fail in surprising ways. We now believe it's better to be explicit.

combine(...)

Arguments

...

Vectors to combine.

Examples

f1 <- factor("a")
f2 <- factor("b")

combine(f1, f2)
#> Warning: `combine()` was deprecated in dplyr 1.0.0.
#> Please use `vctrs::vec_c()` instead.
#> This warning is displayed once every 8 hours.
#> Call `lifecycle::last_lifecycle_warnings()` to see where this warning was generated.
#> [1] a b
#> Levels: a b
# ->
vctrs::vec_c(f1, f1)
#> [1] a a
#> Levels: a

combine(list(f1, f2))
#> [1] a b
#> Levels: a b
# ->
vctrs::vec_c(!!!list(f1, f2))
#> [1] a b
#> Levels: a b