Try leaving the quote marks off the NA: data[,4] <- ifelse(data[,3]<1,data[,1]/(1-data[,3]),NA)
You are putting a character value with the "NA" which converts everything else to a character. If you had examined the dataframe with 'str(data)' you would probably have seen the problem. On Wed, Nov 21, 2012 at 5:34 PM, djbanana <karl79264...@gmail.com> wrote: > Hi, > > I have a data frame and I need to add another column. > > I am using: data[,4] <- ifelse(data[,3]<1,data[,1]/(1-data[,3]),"NA") > > This is returning values but are in quotation marks. The error I am getting > is "non-numeric argument to binary operator" > > I need column four in data to be numeric. Tried as.numeric but it did not > work well either. > > Would appreciate any help. > > Thanks. > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/ifelse-numeric-tp4650390.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > R-help@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. -- Jim Holtman Data Munger Guru What is the problem that you are trying to solve? Tell me what you want to do, not how you want to do it. ______________________________________________ R-help@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.
