Create integer sequences defined by 'from' and 'to' vectors
Just use mapply
:
Start = c(1,10,20)
Finish = c(9,19,30)
mapply(":", Start, Finish)
## [[1]]
## [1] 1 2 3 4 5 6 7 8 9
##
## [[2]]
## [1] 10 11 12 13 14 15 16 17 18 19
##
## [[3]]
## [1] 20 21 22 23 24 25 26 27 28 29 30
##
You could, of course, also use Vectorize
, but that's just a wrapper for mapply
. However, Vectorize
cannot be used with primitive functions, so you'll have to specify seq.default
rather than seq
, or seq.int
.
Example:
Vectorize(seq.default)(Start, Finish)
## [[1]]
## [1] 1 2 3 4 5 6 7 8 9
##
## [[2]]
## [1] 10 11 12 13 14 15 16 17 18 19
##
## [[3]]
## [1] 20 21 22 23 24 25 26 27 28 29 30
##
Agree with @ColonelBeauvel and @nicola, though you could use seq
instead of :
, hence
Start = c(1, 10, 20)
Finish = c(9, 19, 30)
Map(seq, Start, Finish)