On 26 Oct 2004 at 15:46, Federico Gherardini wrote:
> Hi all, > > Simple and direct question.... > Is it possible to add a shorter column to a data frame or matrix in > such a way that the missing values are replaced with NAs? For example > suppose I have > > 3 2 > 4 2 > 5 8 > > and I want to add a column > > 3 > 3 > > to get... > > 3 2 3 > 4 2 3 > 5 8 NA Hi Maybe there is another approach but this shall work no.r <- nrow(df) l.v <- length(your.short.vector) difer <- no.r-l.v cbind(df,c(your.short.vector,rep(NA,difer))) Cheers Petr > > Thanks > > Federico > > ______________________________________________ > [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 Petr Pikal [EMAIL PROTECTED] ______________________________________________ [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
