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problem with subsetting in compating one column with a vector
3 messages · venkata kirankumar, PIKAL Petr, David Freedman
Hi r-help-bounces at r-project.org napsal dne 03.02.2009 09:11:52:
Hi all, I got one problem with "subset()" function hear i executed: findings1<-subset(findings,SUBJECTSID==SUBJECTS1$SUBJECTSID,select=c
+ (SUBJECTSID,ORGNUMRES))
Error in subset(findings, SUBJECTSID == SUBJECTS1$SUBJECTSID, select =
c(SUBJECTSID, :
object "findings" not found
Gives me an error. Strange, is it possible that I do not have SUBJECTS1 or
SUBJECTSID on my computer?
however
subset(iris, subset=iris$Species=="virginica", select=c("Sepal.Length",
"Petal.Length"))
Sepal.Length Petal.Length
101 6.3 6.0
102 5.8 5.1
103 7.1 5.9
104 6.3 5.6
105 6.5 5.8
106 7.6 6.6
works as expected
Or you can use
iris[iris$Species=="virginica", c(1,3)]
to get same result without using subset.
Regards
Petr
hear "SUBJECTS1$SUBJECTSID" vector contains nearly "65" values the problem is after comparing and subsetting its not giving all the values related to that instead its giving randam values and giving warning that: Warning message: In SUBJECTSID == SUBJECTS1$SUBJECTSID : longer object length is not a multiple of shorter object length can any one suggest what I can do to retreave all the related data of
subset
and store in one object thanks in advance regards; kiran [[alternative HTML version deleted]]
______________________________________________ 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.
Do you really want to use '==' ? How about '%in%', as in findings1<-subset(findings,SUBJECTSID %in% ==SUBJECTS1$SUBJECTSID, select=c(SUBJECTSID,ORGNUMRES)) David Freedman
dvkirankumar wrote:
Hi all, I got one problem with "subset()" function hear i executed: findings1<-subset(findings,SUBJECTSID==SUBJECTS1$SUBJECTSID,select=c(SUBJECTSID,ORGNUMRES)) hear "SUBJECTS1$SUBJECTSID" vector contains nearly "65" values the problem is after comparing and subsetting its not giving all the values related to that instead its giving randam values and giving warning that: Warning message: In SUBJECTSID == SUBJECTS1$SUBJECTSID : longer object length is not a multiple of shorter object length can any one suggest what I can do to retreave all the related data of subset and store in one object thanks in advance regards; kiran [[alternative HTML version deleted]]
______________________________________________ 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.
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