Francesca, See ?colnames and ?rownames. Also, I highly suggest looking at some of the documentation at www.r-project.org. There are many, many pages of well-documented examples of working with data frames and other R data structures that you may find useful.
Sean ----- Original Message ----- From: "Francesca Buffa" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Tuesday, March 23, 2004 6:30 AM Subject: [R] help on data.frames/data.entry > Dear R-help, > > > > I have a matrix D of dimensions 200 x 26; rows are my cases and columns are > my variables. I would like to create a data.frame "DF" with row.names= > myrownames (this is a vector of characters of length 200) and column names > "mycolnames" (a vector of characters of length 26). I could find the option > in data.frame for naming rows, but not for naming columns. So I did: > > > data.entry(D, Names= mycolnames) > > > DF <- data.frame(D,row.names=myrownames) > > but after the first command (i.e. > data.entry(D, Names= mycolnames)) I've > received the warning: > > Warning message: > > the condition has length > 1 and only the first element will be used in: if > (dim(x) == dim(args[[i]])) rn <- dimnames(args[[i]])[[1]] else rn <- NULL > > what does this warning mean? Is it affecting the values in my data.frame > table? Or something else? Is there a better way of defining columns names in > a data.frame in automated way? > > > > Thank you very much > > Francesca > > > [[alternative HTML version deleted]] > > ______________________________________________ > [EMAIL PROTECTED] mailing list > https://www.stat.math.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
