[R] Asking Favor For "Remove element with Particular Value In Vector"
David Winsemius
dwinsemius at comcast.net
Sat Aug 27 16:33:25 CEST 2011
On Aug 27, 2011, at 5:31 AM, chuan_zl wrote:
> Dear All.
>
> I am Chuan. I am beginner for R.I facing some problem in remove
> element from
> vector.I have a vector with size 238 element as follow(a part)
>
> [1] 0 18 24 33 44..................................[238] 255
>
> Let the vector label as "x",I want remove element "0" and "255".I
> try use
> such function:
>
> x[x>0 & x<255]
I am not completely clear but it appears that you want to remove the
first and last elements. You can use negative indexing vectors.
x[ -c(1, length(x) ) ]
>
> However, I am fail
Perhaps your vector is a factor? Try this and see what you get:
str(x)
> since same results are give even try it for many times.I
> also try with shorter vector with 10 element. It is successfully
> resulted.
> So,want can I do for it. Kindly asking favor for expert here. Thank
> you very
> much.
>
> Chuan
>
> --
David Winsemius, MD
West Hartford, CT
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