[R] throwaway() function

[Sundar Dorai-Raj]

John Wiedenhoeft wrote:
> Dear all,
> 
> I apologize if this is a FAQ (seems a bit like one, but I didn't find
> anything).
> 
> I'm looking for an easy way to cut one value out of a vector and shorten
> the vector accordingly. Something like:
> 
> x <- c(1, 1, 0, 6, 2)
> throwaway(x[3])
> 
> which will return x = 1 1 6 2, with length(x) = 4. I know one could do
> this by hand, but then one would have to create a second vector y in a
> loop which has to be 1 shorter then x and then assign x <- y, as there
> is no "anti-c()" function which shortens a vector (at least to my
> knowledge).
> 
> Is there some kind of a throwaway() function in R?
> 
> Best regards,
> John
> 
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Use indexing (explained in R-intro)

x <- x[-3] ## drops the third element
x <- x[-c(1, 3)] ## drops the first and third element

HTH,

--sundar