[R] Replacing NA values in one column of a data.frame

[jim holtman]

testdata[is.na(testdata$onecolumn)] <- -9999

On Mon, Aug 17, 2009 at 11:41 AM, Steve Murray<smurray444 at hotmail.com> wrote:
>
> Dear all,
>
> I'm trying to replace NA values with -9999 in one column of a data frame. I've tried using is.na and the testdata[testdata$onecolumn==NA] <- 9999 approach, but whilst neither generate errors, neither result in -9999s appearing - the NAs remain there!
>
> I'd be grateful for any advice on what I'm doing wrong or any other suitable approaches.
>
> Many thanks,
>
> Steve
>
> _________________________________________________________________
>
> oticons.
>
> ______________________________________________
> R-help at 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.
>



-- 
Jim Holtman
Cincinnati, OH
+1 513 646 9390

What is the problem that you are trying to solve?