[R] Is there a way to round numbers up or down to the nearest "natural looking" number?

[Uwe Ligges]

round(t, -1)

Uwe Ligges


Jorgy Porgee wrote:
> Hi all,
> 
> Given the following series of numbers:
> 
>> t
>  [1]  21.85000  30.90410  43.71000  61.82234  87.43999 123.67296
>  [7] 174.91997 247.40249 349.91996 494.91815 700.00000
> 
> What's the simplest way of formatting them into the nearest "natural
> looking" (rounded to nearest multiple of 10) numbers?
> 
> So:
> 
> t[1] becomes 20
> t[2] becomes 30
> t[3] becomes 40
> t[4] becomes 60
> t[5] becomes 90
> t[6] becomes 120, etc ?
> 
> Thus far I've tried signif(t,2) but that's not working great..
> 
> Any help would be much appreciated,
> 
> Thanks in advance,
> 
> George.
> 
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