Hi,
When I use your code i get this :
>dat<-data.frame(test=c("abc","cdf","dabc"))
>d<-subset(dat,grepl(test,"abc"))
>d
Warning message:
In grepl(test, "abc") :
argument 'pattern' has length > 1 and only the first element will be used
> d
test
1 abc
2 cdf
3 dabc
I can't seem to make it work. Also how would i use the grepl() to select only
those that are not like i.e. »GP«?
Thanks, m
From: Steven Kennedy [mailto:[email protected]]
Sent: Monday, May 02, 2011 11:30 AM
To: Matevž PavliÄ
Cc: [email protected]
Subject: Re: [R] subseting data
You can use grepl:
> dat<-data.frame(test=c("abc","cdf","dabc"))
> d<-subset(dat,grepl(test,"abc"))
> d
test
1 abc
3 dabc
On Mon, May 2, 2011 at 7:03 PM, Matevž PavliÄ <[email protected]>
wrote:
Hi,
Is it possible (i am sure it is) to subset data from a data.frame on the basis
of SQL >LIKE< operator. I.e., i would like to subset a data where only values
which contains a string >GP< would be used?
Example:
Gp<-subset(DF, DF$USCS like >GP<)
This like of course is not working,
Thanks, m
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