I am trying to create sequences of number of 6 cases, but with 144 cases intervals.
Like this one for example
c(1:6, 144:149, 288:293)
1 2 3 4 5 6 144 145 146 147 148 149 288 289 290 291 292 293
How could I generate automatically such a sequence with
seq
or with another function ?
I find the sequence
function to be helpful in this case. If you had your data in a structure like this:
(info <- data.frame(start=c(1, 144, 288), len=c(6, 6, 6)))
# start len
# 1 1 6
# 2 144 6
# 3 288 6
then you could do this in one line with:
sequence(info$len) + rep(info$start-1, info$len)
# [1] 1 2 3 4 5 6 144 145 146 147 148 149 288 289 290 291 292 293
Note that this solution works even if the sequences you're combining are different lengths.