Message-ID: <4B52FB49.4040808@pburns.seanet.com>
Date: 2010-01-17T11:58:01Z
From: Patrick Burns
Subject: Choose every second value
In-Reply-To: <4B52F26A.1040502@googlemail.com>
Instead of making two vectors, you
might want to just have one matrix
with two rows:
amat <- matrix(a, nrow=2)
Then you can do:
amat[1,]
amat[2,]
Patrick Burns
patrick at burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of "The R Inferno" and "A Guide for the Unwilling S User")
Walther, Alexander wrote:
> Dear list,
>
> is there a command that selects every second value from a given vector?
> For instance,
>
> a <- c(1,2,3,4,5,6)
>
> should yield
>
> 1,3,5
>
> and
>
> 2,4,6
>
> which i intend to place into two seperate vectors.
>
>
> best
>
> Alex
>
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