> I do have a data set with some missing values that appear as blanks. I want > to fill these blanks with an NA. How can this be done? Thanks for your help
Please help us to help you. What form are the data in? Are they in a text file, or are they in R already? What do you mean by 'blanks'? If we can reproduce your problem then we can solve it more easily. Regards, Richie. Mathematical Sciences Unit HSL ------------------------------------------------------------------------ ATTENTION: This message contains privileged and confidential inform...{{dropped:20}} ______________________________________________ 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.