R - Range of number sequences, or how can I get the reverse of 1:10

问题

I can't seem to find an elegant solution to finding ranges. For me, it would come down to this:

> seq(1:10)
  [1]  1  2  3  4  5  6  7  8  9 10

I would like to get the reverse:

function(c(1,2,3,4,5,6,7,8,9,10))
result 1:10

Real world problem is that I have 1200 indices, some are 0, some are 1:

c(0,0,0,0,0,0,1,1,1,1,1,1,0,0,0,0,1,0,0,1,1,1,1,1,1,0,0,0,0,1,1,1,1,1)

And I would like the ranges/coordinates within the vector for each set of 0s and 1s.

回答1:

Will this simple solution work?

> rev(seq(1:10))
 [1] 10  9  8  7  6  5  4  3  2  1

> range(seq(1:10))
[1]  1 10

来源：https://stackoverflow.com/questions/48411151/r-range-of-number-sequences-or-how-can-i-get-the-reverse-of-110