I am a new R-language user. I have set up a data frame "mydata",one of the colume of which is "skill". Now I want to select the observations whose "skill" value is equal to 1,by what command can I get it?
A beginner's question
5 messages · minben, Coen van Hasselt, K. Elo +2 more
Here's an example: mydata<-data.frame(skill=c(1,2,3,4),x=c(1,1,1,1)) mydata[mydata$skill==1,]
On Fri, Mar 27, 2009 at 16:40, minben <minbenh at gmail.com> wrote:
I am a new R-language user. I have set up a data frame "mydata",one of the colume of which is "skill". Now I want to select the observations whose "skill" value is equal to 1,by what command can I get it?
______________________________________________ R-help at r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Hi,
minben wrote:
I am a new R-language user. I have set up a data frame "mydata",one of the colume of which is "skill". Now I want to select the observations whose "skill" value is equal to 1,by what command can I get it?
Try this: mydata1<-mydatasubset(mydata, skill==1) Maybe You should also read this introduction: http://cran.r-project.org/doc/manuals/R-intro.pdf Kind regards, Kimmo
You can do like this:
1.
mydata[mydata$skill==1,]
2.
mydata[mydata[,"skill"]==1,]
/Forin
On Thu, 26 Mar 2009 23:40:32 -0700 (PDT)
minben <minbenh at gmail.com> wrote:
I am a new R-language user. I have set up a data frame "mydata",one of the colume of which is "skill". Now I want to select the observations whose "skill" value is equal to 1,by what command can I get it?
______________________________________________ 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.
Florin G. Maican
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minben schreef:
I am a new R-language user. I have set up a data frame "mydata",one of the colume of which is "skill". Now I want to select the observations whose "skill" value is equal to 1,by what command can I get it?
______________________________________________ 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.
To add the number of possibilities :): subset(mydata, skill == 1) cheers, Paul
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