[R] conditional assignment

[uaca@alumni.uv.es]

Hi all

I want to conditionally operate on certain elements of a matrix, let me
explain it with a simple vector example


> z<- c(1, 2, 3)
> zz <- c(0,0,0)
> null <- (z > 2) & ( zz <- z)
> zz
[1] 1 2 3

why zz is not (0, 0, 3) ?????


the null <- assignment is to keep the console silent

in the other hand, it curious that null has reasonable values

> null
[1] FALSE FALSE  TRUE

Thanks in advance

	Ulisses

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