Thread Subject:

Leave-one Out validation in matlab.

On May 20, 5:42

Greg Heath <g.heath@verizon.net> wrote in message <3715c3b7-a55f-4667-b2f0-660dd63cf8df@ki5g2000pbb.googlegroups.com>...
> On May 20, 5:42



-------------------------------------------------------

That's all that came through on the TMW Newsreader.

This seems to be a persistent incompatibility with google groups.

"Star Strider" wrote in message <jq0jrm$nvm$1@newscl01ah.mathworks.com>...
> Greg Heath <g.heath@verizon.net> wrote in message <3715c3b7-a55f-4667-b2f0-660dd63cf8df@ki5g2000pbb.googlegroups.com>...
> > On May 20, 5:42
> > -------------------------------------------------------
>
> That's all that came through on the TMW Newsreader.
>
> This seems to be a persistent incompatibility with google groups.

Please read my reply in Google Groups.

Hope this helps.

Greg

"Greg Heath" <heath@alumni.brown.edu> wrote in message <jq3pvr$ai2$1@newscl01ah.mathworks.com>...
> "Star Strider" wrote in message <jq0jrm$nvm$1@newscl01ah.mathworks.com>...
> > Greg Heath <g.heath@verizon.net> wrote in message <3715c3b7-a55f-4667-b2f0-660dd63cf8df@ki5g2000pbb.googlegroups.com>...
> > > On May 20, 5:42
> > > -------------------------------------------------------
> >
> > That's all that came through on the TMW Newsreader.
> >
> > This seems to be a persistent incompatibility with google groups.

Newsgroups: comp.ai.neural-nets, comp.soft-sys.matlab
From: Greg Heath <g.he...@verizon.net>
Date: Mon, 28 May 2012 06:16:40 -0700 (PDT)
Local: Mon, May 28 2012 9:16 am
Subject: Re: Leave-one Out validation in matlab.

On May 20, 5:42 pm, Maicon Kist <maiconk...@gmail.com> wrote:

> Hi list,
> I'm trying to implement a NN in Matlab using the 'leave one out' validation method.

> My code is as follows:

> ====
> net = patternnet(10);
> net = configure(net, input, target);
> net.trainParam.epochs = 1000;
> net.divideMode = 'none';
> net.divideFcn = '';
> net.showWindow = false;
> net.showCommandLine = true;
> net = train(net, input, target);
> resp = net(single_elem); % A element of the data set that wasnt used in train.
> ====

> The problem is that the results are terrible compared to when "train" is used with the 'divideFcn" function.

> Any suggestions?

1. Add comp.soft-sys.matlab to the newsgroup list.
2. Replace the commands

net.divideMode = 'none';
net.divideFcn = '';

with

net.divideFcn = 'dividetrain';
net.divideMode = 'sample'; % Default

Hope this helps.

Greg

"Greg Heath" <heath@alumni.brown.edu> wrote in message <jq3pvr$ai2$1@newscl01ah.mathworks.com>...

> Please read my reply in Google Groups.
>
> Hope this helps.
>
> Greg

--------------------------------------------------

No, I don't want to use Google Groups. I used to use Thunderbird but uninstalled it, because other than c.s-s.m on the TMW Newsreader, I gave up surfing usenet a while ago.

No, it doesn't help, and if your brilliant reply doesn't post correctly to the TMW Newsreader it won't be searchable on TMW and will not be available to everyone.

"Star Strider" wrote in message <jq91n3$g9r$1@newscl01ah.mathworks.com>...
> "Greg Heath" <heath@alumni.brown.edu> wrote in message <jq3pvr$ai2$1@newscl01ah.mathworks.com>...
>
> > Please read my reply in Google Groups.
> > Hope this helps.
> > Greg
> --------------------------------------------------
> No, I don't want to use Google Groups. I used to use Thunderbird but uninstalled it, because other than c.s-s.m on the TMW Newsreader, I gave up surfing usenet a while ago.
>
> No, it doesn't help, and if your brilliant reply doesn't post correctly to the TMW >Newsreader it won't be searchable on TMW and will not be available to everyone.

I guess you were so incensed at my temporary suggestion to read the post in Google Groups that you didn't notice, BEFORE YOU WROTE YOUR SNIDE REPLY, I cut and pasted most of the screwed up GG posts directly to TMW.

Now that GG has corrected the bug, I'll be going back. So, if there are problems in the future, don't hesitate to whine again.

Greg