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NEUROMEG  October 2009

NEUROMEG October 2009

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Subject:

Re: Bad channel scans and tsss (MaxFilter 2.1)

From:

Jukka Nenonen <[log in to unmask]>

Reply-To:

Jukka Nenonen <[log in to unmask]>

Date:

Tue, 6 Oct 2009 16:52:37 +0300

Content-Type:

text/plain

Parts/Attachments:

Parts/Attachments

text/plain (94 lines)

Hi Tony,

I will try to check ubuntu. There have been some problems with other
data analysis programs, mainly on graphical user interface dialogs.

Officially, we support only RedHat 5, but I have not heard
about such problems in Fedora, SuSe or Debian.

Best regards, Jukka

Tony W. Wilson wrote:
> Hi Jukka,
> Thanks for checking on this.  Yes, I am aware of the -st option 
> disabling autobad.  Perhaps it is the configuration we're using (32bit 
> Ubuntu 9).  Which platform do you have MF 2.1 implemented on?  
> 
> Tony
> 
> On Tue, Oct 6, 2009 at 1:07 AM, Jukka Nenonen <[log in to unmask] 
> <mailto:[log in to unmask]>> wrote:
> 
>     Hi Tony,
> 
>     I checked with several files recorded at different sites and
>     sampling frequencies, but autobad almost always reported 1-2 bad
>     channels with default settings, and over 20 bad channels when I set
>     '-badlimit 2'. Value 0.1 usually finds over 100 bad channels.
> 
>     Please note that if you use '-st',  the program does not do autobad
>     scanning at all.
> 
>     With best regards, Jukka Nenonen
> 
> 
> 
>     Yury Shtyrov wrote:
> 
>         We haven't had this in MF 2, I believe, it normally finds too
>         many bad
>         channels. New version - new bugs? ;)
> 
>         yury
> 
>         2009/10/3 Tony W. Wilson <[log in to unmask]
>         <mailto:[log in to unmask]>>:
> 
>             Hi Everyone,
>             Sorry to beat this topic to death, but I noticed a potential
>             bug in MF 2.1
>             when performing the "dummy" autobad runs.  No matter what
>             one sets the
>             badlimit at, it never finds a bad channel (according to the
>             log).  I have
>             tried various values from 30 to 0.1 and never had a bad
>             channel occurrence.
>              I have used several different raw.fif files, each about 5
>             mins at 1kHz.
>              Anyone else have this problem?
>             Maybe my data is just that good! (hehe)
>             Thanks
>             Tony
> 
> 
> 
>     ================================
>     Dr. Jukka Nenonen
>     Manager, Method development
>     Elekta Neuromag Oy
>     Street address: Siltasaarenkatu 18-20A, Helsinki, Finland
>     Mailing address: P.O. Box 68, FIN-00511 HELSINKI, Finland
>     Tel: +358 9 756 240 85 (office), +358 400 249 557 (mobile),
>         +358 9 756 240 11 (fax),    +358 9 756 2400 (operator)
>     E-mail: [log in to unmask] <mailto:[log in to unmask]>
>     http://www.elekta.com/healthcare_international_elekta_neuromag.php
> 
> 
> 
> 
> 


-- 

================================
Dr. Jukka Nenonen
Manager, Method development
Elekta Neuromag Oy
Street address: Siltasaarenkatu 18-20A, Helsinki, Finland
Mailing address: P.O. Box 68, FIN-00511 HELSINKI, Finland
Tel: +358 9 756 240 85 (office), +358 400 249 557 (mobile),
      +358 9 756 240 11 (fax),    +358 9 756 2400 (operator)
E-mail: [log in to unmask]
http://www.elekta.com/healthcare_international_elekta_neuromag.php

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