[R] grep command

[Ivan Calandra]

Oh, and regarding the moderator approval, I guess it's because you're a 
new user to the list.

Ivan

--
Ivan Calandra, PhD
Scientific Mediator
University of Reims Champagne-Ardenne
GEGENAA - EA 3795
CREA - 2 esplanade Roland Garros
51100 Reims, France
+33(0)3 26 77 36 89
ivan.calandra at univ-reims.fr
--
https://www.researchgate.net/profile/Ivan_Calandra
https://publons.com/author/705639/

Le 03/05/2016 à 12:38, Steven Yen a écrit :
> Dear all
> In the grep command below, is there a way to identify only "age" and
> not "age2"? Thanks.
>
>> x<-c("abc","def","rst","xyz","age","age2")
>> x
> [1] "abc"  "def"  "rst"  "xyz"  "age"  "age2"
>> grep("age2",x)
> [1] 6
>> grep("age",x) # I need to grab "age" only, not "age2"
> [1] 5 6
>
> Also, I post message to r-help at r-project.org and that's subject to
> approval by the list moderator. Am I sending it to the wrong address?
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.
>