On Fri, 2007-09-28 at 21:58 -0500, Derek Ogle wrote: > Hello all, > > I am attempting to use the seq() function to define breaks for the > cut() function but am finding performance that I do not understand. > The root of my problem appears to be contained in the following simple > example. > > > brks <- seq(0.8,1.2,0.1) > > brks > [1] 0.8 0.9 1.0 1.1 1.2 > > brks==1.2 > [1] FALSE FALSE FALSE FALSE FALSE > > brks==1.1 > [1] FALSE FALSE FALSE TRUE FALSE > > The last value in the sequence does not appear to be equal to its > apparent value (i.e., 1.2) whereas the fourth value in the sequence, > for example, does (e.g., 1.1). > > Any help/suggestions with the concept or "trick" that I am missing > here? Thank you in advance.
See R FAQ 7.31 Why doesn't R think these numbers are equal? http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f HTH, Marc Schwartz ______________________________________________ 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.
