It really depends on what you want to set the values that contain NAs to for the various type of the columns. Do you always want numerics =0, characters ="", and factors =whatever? Do you want to do this for all the columns in a dataframe? If you want to it for all the columns in a matrix, it is easy, since all are the same type, and you are setting them to zero (e.g., yourMatrix[is.na(yourMatrix)] <- 0).
You can always write a function that can take in the names of the columns and then depending on their types set the corresponding values. So it depends on what you mean by "concisely" and how often you want to do it. On Nov 20, 2007 12:27 PM, Thompson, David (MNR) <[EMAIL PROTECTED]> wrote: > Hello, > > How do I do the following more concisely? > Bout[is.na(Bout$bd.n), 'bd.n'] <- 0 > Bout[is.na(Bout$ht.n), 'ht.n'] <- 0 > Bout[is.na(Bout$dbh.n), 'dbh.n'] <- 0 > > Would the form of such a command be different > between numeric, character and factor columns? > > . . . between data.frames and matrices? > > Thanx, DaveT. > ************************************* > Silviculture Data Analyst > Ontario Forest Research Institute > Ontario Ministry of Natural Resources > [EMAIL PROTECTED] > http://ofri.mnr.gov.on.ca > > ______________________________________________ > [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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem you are trying to solve? ______________________________________________ [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.
