[R] grep command

[Ivan Calandra]

What about?

grep("^age$", x)

Ivan

--
Ivan Calandra, PhD
Scientific Mediator
University of Reims Champagne-Ardenne
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ivan.calandra at univ-reims.fr
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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?
>
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