Slight addendum, tabulate() ignores zeros so you'll need to do tabulate(y+1).
Table will handle zeros but won't look for values that never appear (in your example 2 & 4). Michael On Thu, Oct 13, 2011 at 8:51 AM, R. Michael Weylandt <michael.weyla...@gmail.com> wrote: > Table() or more generally tabulate() > > Though, as a general warning, you may need to be a little careful > depending on the source of your data. Once you get into floating point > business, the definition of an integer becomes a little less cut and > dry. If your data are all integer, the data type, then there's nothing > to worry about. > > Michael > > On Thu, Oct 13, 2011 at 7:33 AM, Kathie <kathryn.lord2...@gmail.com> wrote: >> Dear R users, >> >> I'd like to count the number of integers in a vector y. >> >> Here is an example. >> >> y <- c(0,1,1,3,3,3,5,5,6) >> >> In fact, I know how to count the number of specific number in y. >> >> sum(y==0) -> 1 >> sum(y==1) -> 2 >> sum(y==2) -> 0 >> sum(y==3) -> 3 >> sum(y==4) -> 0 >> sum(y==5) -> 2 >> sum(y==6) -> 1 >> >> >> However, in one computation I want to get this vector [1,2,0,3,0,2,1]. >> >> Thank you in advance. >> >> Kathie >> >> >> >> -- >> View this message in context: >> http://r.789695.n4.nabble.com/Counting-the-number-of-integers-at-one-swoop-tp3901215p3901215.html >> Sent from the R help mailing list archive at Nabble.com. >> >> ______________________________________________ >> 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. >> > ______________________________________________ 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.
