# How to count the number of occurence?

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## How to count the number of occurence?

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## Re: How to count the number of occurence?

 On Mar 20, 2010, at 3:43 AM, tj wrote: > > Hi, may I ask for your help... > What is the R code if I want to count the number of times that "2"   > appeared > in the following R output > >> k > [1] 1 1 1 1 1 1 3 1 2 1 1 1 1 1 1 1 1 3 2 1 1 4 1 1 1 1 1 5 1 1 sum(k==2) > > David Winsemius, MD West Hartford, CT ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.
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## Re: How to count the number of occurence?

 In reply to this post by TJ-2 use table and count all occurances at one time > X  [1] 1 1 1 1 1 1 3 1 2 1 1 1 1 1 1 1 1 3 2 1 1 4 1 1 1 1 1 5 1 1 > table(X) X  1  2  3  4  5 24  2  2  1  1 > On Sat, Mar 20, 2010 at 3:43 AM, tj <[hidden email]> wrote: > > Hi, may I ask for your help... > What is the R code if I want to count the number of times that "2" appeared > in the following R output > > > k >  [1] 1 1 1 1 1 1 3 1 2 1 1 1 1 1 1 1 1 3 2 1 1 4 1 1 1 1 1 5 1 1 > > > > > Thank you for your help. :-) > -- > View this message in context: > http://n4.nabble.com/How-to-count-the-number-of-occurence-tp1661733p1661733.html> Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ >  [hidden email] 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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve?         [[alternative HTML version deleted]] ______________________________________________ [hidden email] mailing list https://stat.ethz.ch/mailman/listinfo/r-helpPLEASE do read the posting guide http://www.R-project.org/posting-guide.htmland provide commented, minimal, self-contained, reproducible code.