[R] compare 2 vectors

[Dimitris Rizopoulos]

look at setdiff(), e.g.,

setdiff(b, a)


I hope it helps.

Best,
Dimitris

----
Dimitris Rizopoulos
Ph.D. Student
Biostatistical Centre
School of Public Health
Catholic University of Leuven

Address: Kapucijnenvoer 35, Leuven, Belgium
Tel: +32/(0)16/336899
Fax: +32/(0)16/337015
Web: http://med.kuleuven.be/biostat/
     http://www.student.kuleuven.be/~m0390867/dimitris.htm


----- Original Message ----- 
From: "João Fadista" <Joao.Fadista at agrsci.dk>
To: <r-help at stat.math.ethz.ch>
Sent: Thursday, June 28, 2007 11:55 AM
Subject: [R] compare 2 vectors


Dear all,

I would like to take out the values from one vector that are equal to 
the values in another vector.

Example:
a <- c(1,2,3,4,5,6,7,8,9)
b <- c(3,10,20,5,6)
b_noRepeats = c(10,20)

So I would like to have the vector b without the same values as vector 
a.


Kind regards,
João Fadista





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