FAQ 7.31 For 'numerics' there is a limit of about 15 digits of accuracy in the number.
On Wed, Feb 9, 2011 at 7:15 AM, PtitBleu <ptit_b...@yahoo.fr> wrote: > > Hello, > > I have a text file with one column containing long number but stored as > string. > I download the file with read.table (and colClass) and the first row of this > column is : > > "095842087016731010" > > As I need to make some calculations with these numbers, I tried to convert > them using as.numeric. > But then I get > as.numeric("095842087016731010") > 95842087016731008 > > I understand the disappearing of the first 0 but I don't understand the > substitution of the last 0 by 8. > > Is there a way to avoid that ? > Thanks in advance, > Ptit Bleu. > -- > View this message in context: > http://r.789695.n4.nabble.com/Problem-with-long-number-from-character-to-numeric-class-tp3297121p3297121.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. > -- Jim Holtman Data Munger Guru 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.