Message-ID: <A0C20390AF37844A9E2C783C9C268D8C496566EF94@CCD1XM1101.ccd1.root4.net>
Date: 2011-10-06T07:42:56Z
From: fernando.cabrera at nordea.com
Subject: Populate a matrix
In-Reply-To: <2885999.ONQgauKSmv@augeatur>
This last solution is what I was looking for, I was trying to avoid loops. Thanks!
-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Rainer Schuermann
Sent: 5. oktober 2011 18:29
To: r-help at r-project.org
Subject: Re: [R] Populate a matrix
m <- matrix( rep( y, length( x ) ), length( y ), length( x ) )
On Wednesday 05 October 2011 18:11:18 fernando.cabrera at nordea.com wrote:
> Hi guys
>
> I have vectors x <- c(1,2,3,4) and y <- c(4,3,9) and would like to generate a matrix which has 3 rows (length(y)) and 4
columns (length(x)), and each row is the corresponding y element repeated length(x) times.
>
> 4,4,4,4
> 3,3,3,3
> 9,9,9,9
>
> Thanks.
>
> Fernando ?lvarez
>
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and provide commented, minimal, self-contained, reproducible code.