[R] rounding

Moshe Olshansky m_olshansky at yahoo.com
Fri Jul 11 02:39:50 CEST 2008


The problem is that neither 0.55 nor 2.55 are exact machine numbers (the computer uses binary representation), so it may happen that the machine representation of 0.55 is slightly less than 0.55 while the machine representation of 2.55 is slightly above 2.55.


--- On Fri, 11/7/08, Korn, Ed (NIH/NCI) [E] <korne at ctep.nci.nih.gov> wrote:

> From: Korn, Ed (NIH/NCI) [E] <korne at ctep.nci.nih.gov>
> Subject: [R] rounding
> To: r-help at stat.math.ethz.ch
> Received: Friday, 11 July, 2008, 6:07 AM
> Hi,
>  
> Round(0.55,1)=0.5
>  
> Round(2.55,1)=2.6
>  
> Can this be right?
>  
> Thanks,
>  
> Ed
> 
> 	[[alternative HTML version deleted]]
> 
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