[R] Numbers with correct significant digits

[Gabor Grothendieck]

You must be thinking of some other language:

> is.integer(1)
[1] FALSE


On 11/17/06, Andrew Robinson <A.Robinson at ms.unimelb.edu.au> wrote:
> Nice solution.
>
> I believe that showing the decimal point is correct.  It demonstrates
> that the number is not an integer.
>
> Cheers
>
> Andrew
>
> On Fri, Nov 17, 2006 at 02:43:10PM -0800, RMan54 wrote:
> >
> > I think that I answered my own question.
> >
> > Since formatC is an implementation of the C-style formatting, I thought that
> > a "#" as flag could work (for g and G conversions, trailing zeros are not
> > removed  from  the  result  as they would otherwise be). Although not in the
> > online help, this worked in R as follows:
> >
> > v  <- c(9.6996, 99.99)
> > formatC(v, digits=3, format="g", flag="#")
> >
> > result:
> >
> > "9.70" "100."
> >
> > The only small annoyance is that the decimal point is always shown.
> >
> >
> > RMan54 wrote:
> > >
> > > This, for example:
> > >
> > > v  <- c(9.6996, 99.99)
> > > formatC(v, digits=3, format="g")
> > >
> > > shows:
> > >
> > > " 9.7" " 100"
> > >
> > > This is scientifically incorrect for the first number in the sense that I
> > > like to show all 3 significant digits, including trailing zero's.
> > > Is there a way that the first number would show as " 9.70"?
> > >
> > > By the way, can't use format() since it applies the same numbers of digits
> > > after the decimal point for all numbers in the vector.
> > >
> > > Thanks,
> > > Rene
> > >
> > >
> >
> > --
> > View this message in context: http://www.nabble.com/Numbers-with-correct-significant-digits-tf2657246.html#a7412389
> > Sent from the R help mailing list archive at Nabble.com.
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch 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.
>
> --
> Andrew Robinson
> Department of Mathematics and Statistics            Tel: +61-3-8344-9763
> University of Melbourne, VIC 3010 Australia         Fax: +61-3-8344-4599
> http://www.ms.unimelb.edu.au/~andrewpr
> http://blogs.mbs.edu/fishing-in-the-bay/
>
> ______________________________________________
> R-help at stat.math.ethz.ch 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.
>