[EMAIL PROTECTED] wrote: > I am using R Version 2.6.2007-11-23. I do not know if the problem exists > for other values or versions > > I encountered a problem when searching for the number 0.94 and 0.95 in a > vector of values. I illustrate it below by creating a sequence of values 2 > ways and then looking for the value 0.94 (same result for 0.95). It looks > like the vector generated by seq( ) is a bit off: > > >> a<-seq(.9,.95,by=.01) >> a >> > [1] 0.90 0.91 0.92 0.93 0.94 0.95 > > >> b<-c(.90,.91,.92,.93,.94,.95) >> b >> > [1] 0.90 0.91 0.92 0.93 0.94 0.95 > > >> a==.94 >> > [1] FALSE FALSE FALSE FALSE FALSE FALSE > >> b==.94 >> > [1] FALSE FALSE FALSE FALSE TRUE FALSE > > >> a-b >> > [1] 0.000000e+00 0.000000e+00 0.000000e+00 0.000000e+00 1.110223e-16 > [6] 1.110223e-16 > > [[alternative HTML version deleted]] > > *Sigh*
FAQ 7.31 -- O__ ---- Peter Dalgaard Øster Farimagsgade 5, Entr.B c/ /'_ --- Dept. of Biostatistics PO Box 2099, 1014 Cph. K (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
