[R] a question

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Hello sir:
Here's a question:
x<-1:5
y<-c(2,1,4)

I wanna get the different elements between x & y,i.e. 3,5.

How can I get the result(3,5) via R function?

Thanks a lot for your help.

My best!







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Xin Meng 
Capitalbio Corporation
National Engineering Research Center 
for Beijing Biochip Technology 
BioPharma-informatics & Software Dept. 
Research Engineer
Tel: +86-10-80715888/80726868-6444 
Fax: +86-10-80726790
Email£ºxmeng at capitalbio.com 
Address:18 Life Science Parkway, 
Changping District, Beijing 102206, China