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
On 6/28/07, João Fadista [EMAIL PROTECTED] wrote:
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)
b[!(b %in% intersect(a,b))]
See ?intersect
--
Christophe
setdiff(b, a)
2007/6/28, João Fadista [EMAIL PROTECTED]:
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
setdiff(b,a) is even simpler.
On 6/28/07, Christophe Pallier [EMAIL PROTECTED] wrote:
On 6/28/07, João Fadista [EMAIL PROTECTED] wrote:
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 -
://med.kuleuven.be/biostat/
http://www.student.kuleuven.be/~m0390867/dimitris.htm
- Original Message -
From: João Fadista [EMAIL PROTECTED]
To: r-help@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
Christophe Pallier wrote:
On 6/28/07, João Fadista [EMAIL PROTECTED] wrote:
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)
b[!(b %in%
Romain Francois wrote:
There is also a pretty useful operator %w/o% in the help page of
%in%. see :
?`%in%`
a - c(1,2,3,4,5,6,7,8,9)
b - c(3,10,20,5,6)
b %w/o% a
[1] 10 20
I don't like the example. It's not obvious, in the expression...
x[!x %in% y]
... that this is the
