R help - Sep 2009 - Function to check if a vector contains a given value?

Dear R'rs,

is there a function that checks if a given vector contains a certain value.
E.g., x<-c(1,2,3,4).
How can I get a TRUE or FALSE for whether x contains a 2?

-- 
Dimitri Liakhovitski
Ninah.com
Dimitri.Liakhovitski at ninah.com

Hi Dimitri,
See either ?any,  ?"%in%", or  ?intersect

any(x == 2)
# [1] TRUE

HTH,
Jorge

On Wed, Sep 23, 2009 at 11:37 AM, Dimitri Liakhovitski <> wrote:
> Dear R'rs,
>
> is there a function that checks if a given vector contains a certain value.
> E.g., x<-c(1,2,3,4).
> How can I get a TRUE or FALSE for whether x contains a 2?
>
> --
> Dimitri Liakhovitski
> Ninah.com
> Dimitri.Liakhovitski@ninah.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.
>
	[[alternative HTML version deleted]]

You can try this also:

is.element(2, x)

On Wed, Sep 23, 2009 at 12:37 PM, Dimitri Liakhovitski <ld7631 at
gmail.com> wrote:
> Dear R'rs,
>
> is there a function that checks if a given vector contains a certain value.
> E.g., x<-c(1,2,3,4).
> How can I get a TRUE or FALSE for whether x contains a 2?
>
> --
> Dimitri Liakhovitski
> Ninah.com
> Dimitri.Liakhovitski at ninah.com
>
> ______________________________________________
> R-help at 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.
>


-- 
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O