thank you. and for those who didn't get the reference:
http://en.wikipedia.org/wiki/Ren%C3%A9_Magritte http://en.wikipedia.org/wiki/Ren%C3%A9_Magritte Peter Dalgaard wrote: > > ticspd wrote: >> I am trying to convert a string to a double using "as.numeric" >> However, R is truncating the results! > > No it isn't! As someone phrased it recently, there's a difference > between an object and the display of an object. "Ceci n'est pas une pipe". > >> Options(digits) is set to 7. > > So numbers are _printed_ to 7-digit accuracy, yes. (And 116.28125 has 8 > digits.) > >> Can anyone shed some light on this? > > Subtract 116, and enlightenment should follow. > > >> Thanks! >> >> >>> b[1] >> [1] "116.28125" >> >>> summary(b[1]) >> Length Class Mode >> 1 character character >> >>> c <- as.numeric(b[1]) >>> c >> [1] 116.2812 >> >> >> > > > -- > 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 > ~~~~~~~~~~ - (p.dalga...@biostat.ku.dk) FAX: (+45) 35327907 > > ______________________________________________ > 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. > > -- View this message in context: http://n4.nabble.com/as-numeric-is-truncating-tp990546p990749.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
