[R] confused with vector subsetting

[Laurent Gautier]

Dear all,

I do not know whether the following results from an obscure feature
of R or from my misunderstanding.

> x <- 1:3
> x[-which(x == 2)]
[1] 1 3
> x[-which(x == 4)]
numeric(0)
(I would have expected something like '[1] 1 2 3' at that point)

Thanks in advance for any advice.


Laurent

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