Not sure whether I understand your question right but here is what I would do:
# Sample data x <- seq( 1, 100, by=6) x [1] 1 7 13 19 25 31 37 43 49 55 61 67 73 79 85 91 97 # remove element with value 19 x <- x[ x != 19 ] x [1] 1 7 13 25 31 37 43 49 55 61 67 73 79 85 91 97 If you want to remove values smaller / larger than a certain threshold, your way should work well: # Sample data x <- seq( 1, 100, by=6) x[9] <- 155 x [1] 1 7 13 19 25 31 37 43 155 55 61 67 73 79 85 91 97 # Remove elements smaller than 20 or larger than 80: x <- x[ x > 20 & x < 80 ] x [1] 25 31 37 43 55 61 67 73 79 So there is probably an issue with your data vector - why don't you dput() it? Rgds, Rainer On Saturday 27 August 2011 02:31:29 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] > > However, I am fail 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 > > -- > View this message in context: > http://r.789695.n4.nabble.com/Asking-Favor-For-Remove-element-with-Particul > ar-Value-In-Vector-tp3772779p3772779.html Sent from the R help mailing list > archive at Nabble.com. > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.