[R] For each element in vector do...
tom wright
tom at maladmin.com
Tue Jan 17 11:31:53 CET 2006
> a<-c(0,1,2,3,0,4,5)
> b<-vector(length=length(a))
> b[a>0]<-a[a>0]+1
> b[a<=0]<-a[a<=0]
> b
[1] 0 2 3 4 0 5 6
On Tue, 2006-17-01 at 15:30 +0100, Andrej Kastrin wrote:
> Dear R useRs,
>
> I have a vector with positive and negative numbers:
> A=c(0,1,2,3,0,4,5)
>
> Now if i-th element in vector A is > 0, then i-th element in vector B
> is a+1
> else i-th element in vector b=a (or 0)
>
> vector A: 0 1 2 3 0 4 5
> vector B: 0 2 3 4 0 5 6
>
> What's the right way to do this. I still have some problems with for and
> if statements...
>
> Cheers, Andrej
>
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