[R] For each element in vector do...

[tom wright]

> 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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