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 df names price 1 BOO 10 2 C 25 3 CL 20 As you can see, "BO" has been replaced by "BOO", but with a warning! Arnaud Gaboury A2CT2 Ltd. Trade: +41 22 849 88 63 Fax: +41 22 849 88 66 [email protected] This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Access to this email by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. If you have received this email in error please notify the sender. From: Jorge I Velez [mailto:[email protected]] Sent: mardi 7 février 2012 19:55 To: Arnaud Gaboury Cc: [email protected] Subject: Re: [R] replace elements of a data frame Hi Arnaud, Take a look at require(car) ?recode HTH, Jorge.- On Tue, Feb 7, 2012 at 1:05 PM, Arnaud Gaboury <> wrote: Hello, I am getting mad at finding a simple way to replace elements of a df. Here is a short df : > names<-c("BO","C","CL") > price<-c("10","25","20") > df<-data.frame(names,price) I want to replace "BO" by "BOB", "C" by "CR", "CL" by "CLO", and the list is more long. I can do that for each element: >df[df=="BO"]<-"BOB" But my df is bigger indeed with other elements. I was thinking using replace(), but can't get any clean result ( NA or all elements replaced with only one), neither with sapply(). TY for any help, and sorry for the n00b question. Arnaud Gaboury A2CT2 Ltd. ______________________________________________ [email protected] 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. ______________________________________________ [email protected] 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.
