To the best of my knowledge this is not a bug. According to FAQ 3.3.3 "Numeric constants with no fractional and exponent (i.e., only integer) part are taken as integer in S-Plus 6.x or later, but as double in R."
You can see it by invoking >storage.mode(1) [1] "double" Hence, if you really want to have integers, you need to use as.integer i.e. > storage.mode(as.integer(1)) [1] "integer" Cheers, Mathieu Le mercredi 22 avril 2009 à 19:45 +0200, hzambran.newsgro...@gmail.com a écrit : > Full_Name: Mauricio > Version: 2.9.0 (2009-04-17) > OS: i486-pc-linux-gnu > Submission from: (NULL) (193.205.203.3) > > > This is a very simple function that seems not to be working, according to the > definition given by '?is.integer'. > > I checked in the Bug Tracking page at http://bugs.R-project.org/, but I didn't > find any related message. > > The possible problem is: > > > > is.integer(1) > [1] FALSE > > and 1 is obviously an integer value. > > > I would really appreciate if you could clarify if this is really a bug or not. > > Thanks in advance, > > Mauricio > > > version > _ > platform i486-pc-linux-gnu > arch i486 > os linux-gnu > system i486, linux-gnu > status > major 2 > minor 9.0 > year 2009 > month 04 > day 17 > svn rev 48333 > language R > version.string R version 2.9.0 (2009-04-17) > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel -- Institute of Mathematics Ecole Polytechnique Fédérale de Lausanne STAT-IMA-FSB-EPFL, Station 8 CH-1015 Lausanne Switzerland http://stat.epfl.ch/ Tel: + 41 (0)21 693 7907 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
