Message-ID: <AANLkTik2rBNkWjtAtBE-R5aNo1gk-OTJpGKogVHrwKFR@mail.gmail.com>
Date: 2011-03-15T12:05:24Z
From: Sarah Goslee
Subject: ecodist (MRM) error message
In-Reply-To: <1300140526736-6170910.post@n2.nabble.com>
Alfredo,
I'd be happy to try to help, but need rather more information.
What version of R, ecodist? What OS?
What do your data look like - str() is very helpful in this regard,
or possibly summary(as.vector(Dx)) and summary(as.vector(Dy)).
What are Dx and Dy? How were the dissimilarities calculated?
Can you provide a reproducible example so that I can see the error
for myself?
With only what you have provided here, there's nothing I or anyone else
can do to assist you.
Sarah
On Mon, Mar 14, 2011 at 6:08 PM, Alfredo Tello <alfredotello at gmail.com> wrote:
> Hi Everyone,
>
> MRM is returning what seems to be a matrix singularity error:
>
> Error in solve.default(XX) :
> ?system is computationally singular: reciprocal condition number =
> 1.88323e-86
>
> when running MRM(Dy~exp(Dx)).
>
> I would appreciate it if anyone could help me around this.
>
> Thanks,
>
> A
--
Sarah Goslee
http://www.functionaldiversity.org