Message-ID: <1344907825.44865.YahooMailNeo@web142601.mail.bf1.yahoo.com>
Date: 2012-08-14T01:30:25Z
From: arun
Subject: pass by reference
In-Reply-To: <CAGuusR99RT=a_bNLE-RPd4coE_x6M-aUF9WvhkdLXdAxcDGdFg@mail.gmail.com>
HI,
Try this:
getcol2<-function(data){
??? data$col2[data$col1<=2]="L"
?data
?}
data<-getcol2(data)
?data
#? col1 col2
#1??? 1??? L
#2??? 2??? L
#3??? 3 <NA>
#4??? 4 <NA>
#5??? 5 <NA>
A.K.
----- Original Message -----
From: Sachinthaka Abeywardana <sachin.abeywardana at gmail.com>
To: r-help at r-project.org
Cc:
Sent: Monday, August 13, 2012 9:08 PM
Subject: [R] pass by reference
Hi all,
I want to do the following:
data<-data.frame(col1=c(1,2,3,4,5))
getcol2<-function(data){
? ? data$col2[data$col1<=2]="L"
}
getcol2(data)
Unfortunately in the above col2 does not appear in the final data. So how
would you pass this by reference such that you would get it back?
Thanks,
Sachin
??? [[alternative HTML version deleted]]
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