replace elements of a data frame

names1<-recode(df$names,"'BO'='BOO';'CL'='CLR';'C'='CC'")
df1<-data.frame(names1,price)
df1

names1 price
1    BOO    10
2     CC    25
3    CLR    20

TY for the tip.

Any possibility to write this in one single line?

Arnaud Gaboury
?
A2CT2 Ltd.

-----Original Message-----
From: Berend Hasselman [mailto:bhh at xs4all.nl] 
Sent: mardi 7 f?vrier 2012 20:46
To: Arnaud Gaboury
Cc: Jorge I Velez; r-help at r-project.org
Subject: Re: [R] replace elements of a data frame

I did indeed have a look at recode(), and was able to replace, but an error warning :

recode(names,"BO","BOO",df)

Warning message:
In recode.default(names, "BO", "BOO", df) :
 Name(s) of vars duplicates with an object outside the dataFrame.

df

 names price
1   BOO    10
2     C    25
3    CL    20

As you can see, "BO" has been replaced by "BOO", but with a warning!

library(car)

 names<-c("BO","C","CL")
price<-c("10","25","20")
df<-data.frame(names,price)
recode(df$names,"'BO'='BOO'; 'CL'='CLO'; 'C'='CR'")

results in

[1] BOO CR  CLO
Levels: BOO CLO CR

Note the single quotes.

Berend