[R] specify the number of decimal numbers

[baptiste auguie]

Alternatively,

signif(c(pi,exp(1)), 3)

?signif # and others in that page

HTH,

baptiste

On 14 May 2009, at 13:47, jim holtman wrote:

> Depending on what you want to do, use 'sprintf':
>
>> x <- 1.23456789
>> x
> [1] 1.234568
>> as.character(x)
> [1] "1.23456789"
>> sprintf("%.1f  %.3f  %.5f", x,x,x)
> [1] "1.2  1.235  1.23457"
>>
>
>
> On Thu, May 14, 2009 at 7:40 AM, lehe <timlee126 at yahoo.com> wrote:
>
>>
>> Hi,
>> I was wondering how to specify the number of decimal numbers in my
>> computation using R? I have too many decimal numbers for my result,  
>> when I
>> convert them to string with as.character, the string will be too  
>> long.
>> Thanks and regards!
>> --
>> View this message in context:
>> http://www.nabble.com/specify-the-number-of-decimal-numbers-tp23538852p23538852.html
>> Sent from the R help mailing list archive at Nabble.com.
>>
>> ______________________________________________
>> R-help at 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<http://www.r-project.org/posting-guide.html 
>> >
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
>
>
> -- 
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem that you are trying to solve?
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at 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.

_____________________________

Baptiste Auguié

School of Physics
University of Exeter
Stocker Road,
Exeter, Devon,
EX4 4QL, UK

Phone: +44 1392 264187

http://newton.ex.ac.uk/research/emag