[R] difference between successive values

[Olivier Crouzet]

Hi,

(1) You should provide a minimal working example;

(2) But anyway, does...

x = sample(10)
c(x[1],diff(x))

... do what you want?

Olivier.


On Fri, 4 Mar 2016
13:22:07 +0200 catalin roibu <catalinroibu at gmail.com> wrote:

> Dear all!
> 
> I want to calculate difference between successive values (cumulative
> values) with R. I used diff function, but I want to keep the first
> values.
> 
> Please help me to solve this problem!
> 
> Thank you!
> 
> Best regards!
> 
> CR
> 
> -- 
> 
> -
> -
> Catalin-Constantin ROIBU
> ​
> Lecturer PhD, Forestry engineer
> Forestry Faculty of Suceava
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-- 
  Olivier Crouzet, PhD
  Laboratoire de Linguistique de Nantes -- UMR6310
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