Never mind. I got it. Thanks! Tao
----- Original Message ----- > From: "Shi, Tao" <shida...@yahoo.com> > To: "r-help@r-project.org" <r-help@r-project.org> > Cc: > Sent: Monday, October 15, 2012 4:08 PM > Subject: [R] warning message > > Hi list, > > Can somebody explain why there are these warning messages? I just don't get > it. I'm using R 2.15.1 on WinXP. > > Thanks! > > Tao > > >> x > [1] -2.143510 -1.157450 -1.315581 1.033562 -1.225440 -1.179909 > >> ifelse(x>0, log2(x), -log2(-x)) > [1] -1.099975 -0.210950 -0.395700 0.047625 -0.293300 -0.238675 > Warning messages: > 1: In ifelse(x > 0, log2(x), -log2(-x)) : NaNs produced > 2: In ifelse(x > 0, log2(x), -log2(-x)) : NaNs produced > > > ______________________________________________ > 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. > ______________________________________________ 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.
