On Sep 2, 2011, at 3:51 PM, Josh Tewksbury wrote:
Hello, I have a dataframe that looks like this:
a b NA Honduras China NA NA Sudan Japan NA NA Mexico NA Mexico
I would like to replace the NA values in column b with the non-NA
values in
column a. I have tried a number of techniques, (if, ifelse) but I
must have
the logic wrong.
Mangled data but no matter:
dfrm$b[is.na(dfrm$b)] <- dfrm$a[is.na(dfrm$b)]
(Learn to post in plain text. This is a plain text list.)
David Winsemius, MD
West Hartford, CT
______________________________________________
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.
