Just for clarity, I changed your x a bit - in your version, the 0-1 and 1-0 change occurred the same number of times.
If all your values are 0 and 1, this will work: > x <- c(0,1,0,1,0,0,0,1,1,1) > table(diff(x)) -1 0 1 2 4 3 > sum(diff(x) == 1) [1] 3 If other values can occur, it would need some tweaking. Sarah On Sat, Feb 18, 2012 at 2:09 PM, maris478 <[email protected]> wrote: > Good afternoon, > I've encountered a little bit of a problem, would appreciate any help here. > > I made a small vector consisting of ones and zeros. > Something like this x <- c(0,1,0,1,0,0,1,0), and all I need is to count how > many times "0" becomes "1". > Tried various, of what I thought, methods with built in functions. Didn't > get any further. > > Thank you very much. -- Sarah Goslee http://www.functionaldiversity.org ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
