You could use findInterval to find which interval each element is in, then use table to count up how many are in each interval:
> table(findInterval( 1:10, c(3,5,6,10) + 10*.Machine$double.eps ) ) 0 1 2 3 3 2 1 4 On Tue, Sep 17, 2013 at 4:15 AM, <gildororo...@mail-on.us> wrote: > I can do this: > > 1:10 %in% c(3, 5, 6, 10) >> > [1] FALSE FALSE TRUE FALSE TRUE TRUE FALSE FALSE FALSE TRUE > > but what I wish to get is: > > [1] 3 2 1 4 > > let me explain: > > 3 # [1:3] ends with TRUE, i.e. FALSE FALSE TRUE > 2 # [4:5] ends with TRUE, i.e. FALSE TRUE > 1 # [6:6] ends with TRUE, i.e. TRUE > 4 # [7:10] ends with TRUE, i.e. FALSE FALSE FALSE TRUE > > That is, %in% gave me a serial whether or not the element is in a set, the > length is equal to the former, i.e. 1:10 > > But I wish to get a serial of intevals of occurance of the element in the > set, the length is equal to the latter i.e. c(3, 5, 6, 10) > > With ths task of finding the intervals, I found, with googling, a function > called findInterval. I did read every line of that manual, and it seems to > be for a completely different purpose. > > Kindly help the poor newbie:) > > ______________________________**________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/**listinfo/r-help<https://stat.ethz.ch/mailman/listinfo/r-help> > PLEASE do read the posting guide http://www.R-project.org/** > posting-guide.html <http://www.R-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > -- Gregory (Greg) L. Snow Ph.D. 538...@gmail.com [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org 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.
