Message-ID: <f8e6ff050809171935o5fabd443vc3125e827cefabd4@mail.gmail.com>
Date: 2008-09-18T02:35:02Z
From: Hadley Wickham
Subject: matrix to list
In-Reply-To: <2947BB7F49B05B4C85A67A4F2E95D9D70E18EEBFF2@wood-site-001.corporateict.domain>
On Wed, Sep 17, 2008 at 8:52 PM, Pinder, Adrian
<Adrian.Pinder at dec.wa.gov.au> wrote:
> Hi, can someone please tell me how to convert a square matrix to a list in R?
>
> i.e. I want to convert from:
>
> a b c
> a 1 1 1
> b 2 2 2
> c 3 3 3
>
> to:
>
> a a 1
> a b 1
> a c 1
> b a 2
> b b 2
> b c 2
> c a 3
> c b 3
> c c 3
Try melt from the reshape package.
Hadley
--
http://had.co.nz/