[R] difference between successive values

Olivier Crouzet
Fri, 04 Mar 2016 11:28:08 -0000

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
> Str. Universitatii no. 13, Suceava, 720229, Romania
> office phone      +4 0230 52 29 78, ext. 531
> mobile phone    +4 0745 53 18 01
> FAX:                +4 0230 52 16 64
> silvic.usv.ro <http://www.usv.ro/>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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.

--
  Olivier Crouzet, PhD
  Laboratoire de Linguistique de Nantes -- UMR6310
  CNRS / Universit? de Nantes
  Chemin de la Censive du Tertre -- BP 81227
  44312 Nantes cedex 3
  France