[R] faster vector subtraction??

[Achim Zeileis]

Søren Merser wrote:
> 
> hi
> is there a faster way to do this?
> 
> i <- 1
> for(x in vector1)
>      for(y in vector2) {
>          m[[i]] <- (x - y)
>          i <- i + 1
>       }

I'm not completely sure, what you want, but this might give the desired
answer:
outer(vector1, vector2, FUN = "-")

Hope that helps
Z


> regards soren
> 
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