[R] Looking for position of character in a string

[Doran, Harold]

> s1 <- "Hello.World"

> which(strsplit(s1, '')[[1]]=='.')
[1] 6 

> -----Original Message-----
> From: r-help-bounces at r-project.org 
> [mailto:r-help-bounces at r-project.org] On Behalf Of phoebe kong
> Sent: Wednesday, October 01, 2008 2:56 PM
> To: r-help at r-project.org
> Subject: [R] Looking for position of character in a string
> 
> Hi all,
> 
> I would like to check if a string contains "." in it. If yes, 
> I would like to know the position of "." in the string.
> 
> Eg: X<-"NM1236.3"
> 
> In above example, "." is at position 7.
> 
> I tried functions grep() and match(). It seems they couldn't 
> detect ".".
> 
> 
> Thanks in advance for your help,
> Sityee
> 
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