FAQ 7.31 On Wed, Aug 27, 2008 at 11:51 AM, David Afshartous <[EMAIL PROTECTED]> wrote: > > All, > > I'm witnessing some strange behavior when checking the values of one of my > variables. My guess is that it has something to do with the number of > significant digits being represented, but perhaps not as my variable was > created from other variables that only had one decimal place. See below. > I'm sure this is something basic, any suggestions much appreciated. > > Cheers, > David > > >> visit.2.SEK.delta.baseline > [1] 0.1 -0.7 0.8 -0.1 -0.5 0.8 0.7 0.2 0.4 0.3 0.6 0.6 0.3 0.8 > 0.8 0.3 0.4 0.8 >> visit.2.SEK.delta.baseline > 0 > [1] TRUE FALSE TRUE FALSE FALSE TRUE TRUE TRUE TRUE TRUE TRUE TRUE > TRUE TRUE TRUE TRUE TRUE TRUE >> visit.2.SEK.delta.baseline == .8 > [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE FALSE > FALSE FALSE FALSE FALSE FALSE FALSE > ### but some of the values are equal to .8 > > ## here it is okay when I try to reproduce >> junk = c(0.1, -0.7,0.8, -0.1, -0.5, 0.8, 0.7, 0.2, 0.4, 0.3, 0.6, >> 0.6, > 0.3, 0.8, 0.8, 0.3, 0.4, 0.8 ) >> junk == .8 > [1] FALSE FALSE TRUE FALSE FALSE TRUE FALSE FALSE FALSE FALSE FALSE FALSE > FALSE TRUE TRUE FALSE FALSE TRUE > > ______________________________________________ > 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. >
-- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.
