[R] Numbers with correct significant digits

[Andrew Robinson]

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.
> 
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-- 
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/