[R] to check if a character string is in a group of character strings

ONKELINX, Thierry Thierry.ONKELINX at inbo.be
Wed Jan 23 17:30:35 CET 2013


I think you want %in%

subpool %in% pool
pool %in% subpool



ir. Thierry Onkelinx
Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest
team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance
Kliniekstraat 25
1070 Anderlecht
Belgium
+ 32 2 525 02 51
+ 32 54 43 61 85
Thierry.Onkelinx op inbo.be
www.inbo.be

To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of.
~ Sir Ronald Aylmer Fisher

The plural of anecdote is not data.
~ Roger Brinner

The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data.
~ John Tukey


-----Oorspronkelijk bericht-----
Van: r-help-bounces op r-project.org [mailto:r-help-bounces op r-project.org] Namens Yuan, Rebecca
Verzonden: woensdag 23 januari 2013 17:15
Aan: R help
Onderwerp: [R] to check if a character string is in a group of character strings

Hello,

How can I judge if a string is in a group of string? For example, I would like to have

if (subpool in pool){
}else{
}

Where

> pool = c("s1","s2")
> subpool = c("s1")

How can I write the "subpool in pool" right in R?

Thanks very much!

Cheers,

Rebecca


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