[FieldTrip] creating new dataset

[alotof eve]

Is that possible to create a new dataset based on pre-processed 4D neuroimaging dataset by FieldTrip? I mean, such as re-write average results data like in EEGLab?



________________________________
From: jan-mathijs schoffelen <jan.schoffelen at donders.ru.nl>
To: Email discussion list for the FieldTrip project <fieldtrip at donders.ru.nl>
Sent: Monday, September 26, 2011 7:26 AM
Subject: Re: [FieldTrip] creating new dataset


Hi Jessie,

FieldTrip is not able to write back into the native 4D neuroimaging format. If you want to create a new dataset, you need to have a look at the software which is provided by the 4D neuroimaging company. Your requested functionality may either be a feature of one of the applications, or may be implemented in one of the command line utilities. You may want to look in the software documentation for this.

Best wishes,

Jan-Mathijs


On Sep 26, 2011, at 4:11 PM, Luo, Jessie (NIH/NIMH) [V] wrote:

Thanks for your answer Jörn  . Yes I can use those functions to 'exlucde', but these definitions cannot be read by other software. What is why I intended to create a new dataset. Looks like fieldtrip does not allow that...
>
>Jessie
>________________________________________
>From: "Jörn M. Horschig" [jm.horschig at donders.ru.nl]
>Sent: Sunday, September 25, 2011 4:09 AM
>To: Email discussion list for the FieldTrip project
>Subject: Re: [FieldTrip] creating new dataset
>
>Hi Jessie,
>
>not quite sure what you are up to by saying that you do not want to use ft_ functions for that (maybe I misunderstood that part). Of course you could write your own loop, but the easier option would be to call ft_channelselection on your data and then call ft_preprocessing (this will return a new data-structure). See the help of these ft_channelselection:
>
>You can also exclude channels or channel groups using the following syntax
>   {'all', '-POz', '-Fp1', -EOG'}
>
>
>
>
>
>From ft_preprocessing:
>>
>If you are calling FT_PREPROCESSING<http://fieldtrip.fcdonders.nl/reference/ft_preprocessing> with also the second input argument
> "data", then that should contain data that was already read from file in
> a previous call to FT_PREPROCESSING<http://fieldtrip.fcdonders.nl/reference/ft_preprocessing>. In that case only the configuration
> options below apply.
>
> The channels that will be read and/or preprocessed are specified with
>   cfg.channel      = Nx1 cell-array with selection of channels (default = 'all'),
>                      see FT_CHANNELSELECTION<http://fieldtrip.fcdonders.nl/reference/ft_channelselection> for details
>
>
>You could also use ft_selectdata instead of ft_preprocessing in case you are handling already processed data (e.g. tfr-data ). Alternatively, you can check ft_channelrepair for interpolating the bad channels.
>
>Hope this all helps to what you are up to!
>Best,
>Jörn
>
>On 9/24/2011 10:12 PM, Luo, Jessie (NIH/NIMH) [V] wrote:
>
>Hi,
>
>If there are bad channels (e.g. for a 4D system) in a dataset, Is it possible to create a new dataset by excluding them? I meant creating a NEW dataset  without those channels (not by defining them using the ft_... in fieldtrip).
>
>Thanks,
>
>Jessie
>_______________________________________________
>fieldtrip mailing list
>fieldtrip at donders.ru.nl<mailto:fieldtrip at donders.ru.nl>
>http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>
>
>
>
>--
>Jörn M. Horschig
>PhD Student
>Donders Institute for Brain, Cognition and Behaviour
>Centre for Cognitive Neuroimaging
>Radboud University Nijmegen
>Neuronal Oscillations Group
>
>P.O. Box 9101
>NL-6500 HB Nijmegen
>The Netherlands
>
>Contact:
>E-Mail: jm.horschig at donders.ru.nl<mailto:jm.horschig at donders.ru.nl>
>Tel:    +31-(0)24-36-68493
>Web: http://www.ru.nl/donders
>
>Visiting address:
>Trigon, room 2.30
>Kapittelweg 29
>NL-6525 EN Nijmegen
>The Netherlands
>
>
>_______________________________________________
>fieldtrip mailing list
>fieldtrip at donders.ru.nl
>http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>

Jan-Mathijs Schoffelen, MD PhD 
Donders Institute for Brain, Cognition and Behaviour, 
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands
J.Schoffelen at donders.ru.nl
Telephone: +31-24-3614793 

_______________________________________________
fieldtrip mailing list
fieldtrip at donders.ru.nl
http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20110926/90d6a4f0/attachment-0002.html>