lst() constructs a list, similar to base::list(), but where components
are built sequentially. When defining a component, you can refer to components
created earlier in the call. lst() also generates missing names
automatically.
Arguments
- ...
Named or unnamed elements of a list. If the element is unnamed, its expression will be used as its name.
Examples
# the value of n can be used immediately in the definition of x
lst(n = 5, x = runif(n))
#> $n
#> [1] 5
#>
#> $x
#> [1] 0.921526176 0.675661902 0.350588162 0.008658075 0.430898793
#>
# missing names are constructed from user's input
lst(1:3, z = letters[4:6], runif(3))
#> $`1:3`
#> [1] 1 2 3
#>
#> $z
#> [1] "d" "e" "f"
#>
#> $`runif(3)`
#> [1] 0.7249351 0.4122564 0.5508624
#>
a <- 1:3
b <- letters[4:6]
lst(a, b)
#> Error in eval(value, envir = if (length(out) == 0) { list_to_eval} else { drop_dup_list(out[1:(element - 1)])}): object 'a' not found