Thank you very much. el
On 2014-06-30, 00:48 , Rolf Turner wrote: > > On 30/06/14 10:32, Dr Eberhard W Lisse wrote: > >> Thanks, >> >> I then set NA to 0, and can do the sutraction, >> >> great. > > Not so great. I haven't gone through the issues underlying this post, > but replacing NA by 0 will almost surely yield nonsense. "Missing" is > ***not*** the same thing as "zero". Pretending that it is will have > disastrous consequences. Think through what you are trying to do more > clearly. > > cheers, > > Rolf Turner
______________________________________________ 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.
