[FieldTrip] ft_sourceinterpolate after grandaverage, interpn error

Martin Winkels m_wink10 at uni-muenster.de
Tue Jun 26 17:41:15 CEST 2012


i will try that, thank you very very much!

On Tue, Jun 26, 2012 at 3:15 PM, cornelius abel <cornabel at googlemail.com>wrote:

> Here is a workaround:
> It seems that it works if you copy the functional data from "GrandAVG
> .avg.avg.pow" to "GrandAVG .avg.pow" prior to interpolation (and then using
> cfg.parameter='avg.pow').
>
> I posted it to the bugzilla system.
>
> Cornelius
>
> Am 23.06.2012 22:01, schrieb jan-mathijs schoffelen:
>
>> Hi Martin,
>>
>> In general, the more info you can provide us with, the more likely it is
>> that anybody can help you. The problem you sketch is too vague to even try
>> start giving hints. It would be best if you could provide us with some
>> detailed error messages to begin with. Even better would be if you create
>> an account on our bugzilla-website, where you can also upload a script and
>> some (small) data structure that would allow us to reproduce the problem.
>>
>> Best wishes,
>>
>> Jan-Mathijs
>>
>> PS: http://bugzilla.fcdonders.nl
>>
>>
>> On Jun 23, 2012, at 4:05 PM, Martin Winkels wrote:
>>
>>  I have the same Problem. I can plot my LCMV-Beamformer results on an
>>> anatomy. And I can plot the results of the normalize script. But I can't
>>> plot the GrandAVG or the Stats results on that anatomy. The interpolate
>>> function doesn' work. Without anatomy it works just fine.
>>>
>>> Any hint?
>>>
>>> Thanks, Martin
>>>
>>> On Sat, Jun 23, 2012 at 8:19 AM, jan-mathijs schoffelen <
>>> jan.schoffelen at donders.ru.nl <mailto:jan.schoffelen@**donders.ru.nl<jan.schoffelen at donders.ru.nl>>>
>>> wrote:
>>>
>>>    Hi Cornelius,
>>>
>>>    Could it be that the parameter 'avg.avg.pow' does not work?
>>>
>>>    Best,
>>>
>>>    JM
>>>
>>>    On Jun 22, 2012, at 2:38 PM, cornelius abel wrote:
>>>
>>>     Dear Fieldtrip list,
>>>>
>>>>    i successfully beamformed some steady state activity and the
>>>>    sourceplots per subject are looking very nice.
>>>>    As a next step I tried to calculate a grand average using
>>>>    ft_sourcegrandaverage:
>>>>
>>>>    cfg=[];
>>>>    cfg.keepindividual='no';
>>>>    cfg.parameter='avg.pow';
>>>>    GACont= ft_sourcegrandaverage(cfg, AllsourceCont{:});
>>>>
>>>>    giving me the following structure:
>>>>
>>>>    GACont =
>>>>    pos: [3570x3 double]
>>>>    dim: [17 14 15]
>>>>    avg: [1x1 struct]
>>>>    var: [1x1 struct]
>>>>    dimord: 'voxel'
>>>>    inside: [1846x1 double]
>>>>    outside: [1724x1 double]
>>>>    df: [3570x1 double]
>>>>    cfg: [1x1 struct]
>>>>
>>>>    but interpolating this onto an anatomy always gives me an error:
>>>>
>>>>    cfg = [];
>>>>    cfg.downsample= 2;
>>>>    cfg.parameter = 'avg.avg.pow';
>>>>    sourceDiffInt= ft_sourceinterpolate(cfg, GACont , mri);
>>>>
>>>>    /??? Error using ==> interpn at 155/
>>>>    ///Wrong number of input arguments or some dimension of V is
>>>>    less than 2./
>>>>    ///Error in ==> ft_sourceinterpolate>my_**interpn at 464/
>>>>    ///av(sel) = interpn(fv, ax(sel), ay(sel), az(sel), interpmethod);/
>>>>    ///Error in ==> ft_sourceinterpolate at 368/
>>>>    ///av( sel) = my_interpn(fv, ax(sel), ay(sel), az(sel),
>>>>    cfg.interpmethod, cfg.feedback);/
>>>>
>>>>    however interpolating a single subject source data works just
>>>>    fine...
>>>>
>>>>    cfg = [];
>>>>    cfg.downsample= 2;
>>>>    cfg.parameter = 'avg.pow';
>>>>    sourceDiffInt= ft_sourceinterpolate(cfg, AllsourceCont{1} , mri);
>>>>
>>>>
>>>>    What am i doing wrong here, any ideas?
>>>>
>>>>
>>>>
>>>>    Greetings, Cornelius
>>>>
>>>>    ______________________________**_________________
>>>>    fieldtrip mailing list
>>>>    fieldtrip at donders.ru.nl <mailto:fieldtrip at donders.ru.**nl<fieldtrip at donders.ru.nl>
>>>> >
>>>>    http://mailman.science.ru.nl/**mailman/listinfo/fieldtrip<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
>>>
>>>    Max Planck Institute for Psycholinguistics,
>>>    Nijmegen, The Netherlands
>>>
>>>    J.Schoffelen at donders.ru.nl <mailto:J.Schoffelen at donders.**ru.nl<J.Schoffelen at donders.ru.nl>
>>> >
>>>    Telephone: +31-24-3614793 <tel:%2B31-24-3614793>
>>>
>>>
>>>    ______________________________**_________________
>>>    fieldtrip mailing list
>>>    fieldtrip at donders.ru.nl <mailto:fieldtrip at donders.ru.**nl<fieldtrip at donders.ru.nl>
>>> >
>>>
>>>    http://mailman.science.ru.nl/**mailman/listinfo/fieldtrip<http://mailman.science.ru.nl/mailman/listinfo/fieldtrip>
>>>
>>>
>>> ______________________________**_________________
>>> fieldtrip mailing list
>>> fieldtrip at donders.ru.nl <mailto:fieldtrip at donders.ru.**nl<fieldtrip at donders.ru.nl>
>>> >
>>> http://mailman.science.ru.nl/**mailman/listinfo/fieldtrip<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
>>
>> Max Planck Institute for Psycholinguistics,
>> Nijmegen, The Netherlands
>>
>> J.Schoffelen at donders.ru.nl <mailto:J.Schoffelen at donders.**ru.nl<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<http://mailman.science.ru.nl/mailman/listinfo/fieldtrip>
>>
>
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