[R] Ceiling to the nearest ten?

Barry Rowlingson b.rowlingson at lancaster.ac.uk
Mon Jan 14 18:27:53 CET 2008


Lauri Nikkinen wrote:
> R-users,
> 
> Is there a function for ceiling to the nearest ten?
> 
> a <- 1:10*4
> a
> [1]  4  8 12 16 20 24 28 32 36 40
> 
> The resulting vector should look like this ("ceiling to the nearest ten")
> [1] 10 10 20 20 20 30 30 40 40 40
> 

Divide and conquer:

  > a
   [1]  4  8 12 16 20 24 28 32 36 40
  > ceiling(a/10)*10
   [1] 10 10 20 20 20 30 30 40 40 40

Barry




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