[R] difference along a vector

Erik Iverson eriki at ccbr.umn.edu
Wed May 12 21:18:04 CEST 2010


help.search("difference")

would lead you to

?diff, see the lag argument

Clark Johnston wrote:
> I was looking for  a function which would take the difference along a vector?
>> a<-c(1,12,23,44,15,28,7,8,9,10)
> if I set the number difference to 3 would return
> 43
> 2
> 5
> -37
> -7
> -19
> 3
> 
> or do I need to write my own function for this.



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