Hi, there, Suppose I have two vector say x=c(1 2 3 4 5) and y=(2 3 6 7). Then I want to combine these two vector together and get z=c(1 2 3 4 5 6 7) with 2 and 3 only appear once. I want to extend this one to a general case(say more than 100 elements in x and y and each time I don't know which elements are the same). Do you happen to know how to do this and which command should use? Thank you very much. Please reply to this email. Any kind help would be greatly appreciated. Mike
anyone know how to combine two vector with some # overlaped?
4 messages · Mike, Julian Taylor, Uwe Ligges +1 more
Try x <- c(1,2,3,4,5) y <- c(2,3,6,7) z <- c(x,y)[!duplicated(c(x,y))] HTH, Jules
Mike wrote:
Hi, there, Suppose I have two vector say x=c(1 2 3 4 5) and y=(2 3 6 7). Then I want to combine these two vector together and get z=c(1 2 3 4 5 6 7) with 2 and 3 only appear once. I want to extend this one to a general case(say more than 100 elements in x and y and each time I don't know which elements are the same). Do you happen to know how to do this and which command should use? Thank you very much. Please reply to this email. Any kind help would be greatly appreciated. Mike
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--- Julian Taylor phone: +61 8 8303 6751 ARC Research Associate fax: +61 8 8303 6760 BiometricsSA, mobile: +61 4 1638 8180 University of Adelaide/SARDI email: julian.taylor at adelaide.edu.au Private Mail Bag 1 www: http://www.BiometricsSA.adelaide.edu.au Glen Osmond SA 5064 "There is no spoon." -- Orphan boy ---
Mike wrote:
Hi, there, Suppose I have two vector say x=c(1 2 3 4 5) and y=(2 3 6 7). Then I want to combine these two vector together and get z=c(1 2 3 4 5 6 7) with 2 and 3 only appear once. I want to extend this one to a general case(say more than 100 elements in x and y and each time I don't know which elements are the same). Do you happen to know how to do this and which command should use? Thank you very much. Please reply to this email. Any kind help would be greatly appreciated. Mike
______________________________________________ R-help at stat.math.ethz.ch mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
See ?unique Uwe Ligges
Mike wrote:
Hi, there, Suppose I have two vector say x=c(1 2 3 4 5) and y=(2 3 6 7). Then I want to combine these two vector together and get z=c(1 2 3 4 5 6 7) with 2 and 3 only appear once.
union(x,y) R provides several set operators. See ?union. Christophe Pallier