[FieldTrip] converting from som to ft

[Vladimir Litvak]

I don't see what you mean. This is the intended functionality that
supports TF data and produces the right format.

Vladimir

On 11/15/12, Zita Eva Patai <eva.patai at psy.ox.ac.uk> wrote:
> Thanks Vladimir!
> (but does this mean I cannot convert my TF data at all, or i have to do
> this as a 'loophole' alternative...and then i get my TF data into the right
> format?)
>
> On Thu, Nov 15, 2012 at 4:37 PM, Vladimir Litvak
> <litvak.vladimir at gmail.com>wrote:
>
>> Dear Zita,
>>
>> You do:
>>
>> freq = D.fttimelock
>>
>> in SPM. The fieldtrip function does not support TF data.
>>
>> Best,
>>
>> Vladimir
>>
>>
>> On Thu, Nov 15, 2012 at 4:29 PM, Zita Eva Patai
>> <eva.patai at psy.ox.ac.uk>wrote:
>>
>>> Hello FT-ers
>>>
>>> In the past i had no problem when converting my data from SPM (where i
>>> do
>>> preprocessing and averaging) to FT (where I do my cluster-stats and
>>> plotting)
>>>
>>> Currently, I am using the new way to convert (previous version seems
>>> outdated 'nspm2ftrip') and I am hitting a wall: it says my data is not
>>> in
>>> the right format, ie: not freq data. But i know that it is...any advice
>>> would be much appreciated! Not to mention is warns me my data is not
>>> epoched when it is indeed so...
>>>
>>> Thank you!
>>> zita
>>>
>>> *********************
>>> *>> D = spm_eeg_load*
>>> SPM M/EEG data object
>>> Type: evoked
>>> Transform: TF
>>> 8 conditions
>>> 326 channels
>>> 20 frequencies
>>> 501 samples/trial
>>> 8 trials
>>> Sampling frequency: 250 Hz
>>> Loaded from file  C:\Users\Eva Z
>>> Patai\Documents\MATLAB\epoched_data\tf\rmtf_rs01_timecorr.mat
>>>
>>> Use the syntax D(channels, frequencies, samples, trials) to access the
>>> data
>>> Type "methods('meeg')" for the list of methods performing other
>>> operations with the object
>>> Type "help meeg/method_name" to get help about methods
>>>
>>> *>> data = spm2ft(D)*
>>>
>>> mapping condition label "11" to condition code 1
>>> mapping condition label "12" to condition code 2
>>> mapping condition label "21" to condition code 3
>>> mapping condition label "22" to condition code 4
>>> mapping condition label "31" to condition code 5
>>> mapping condition label "32" to condition code 6
>>> mapping condition label "41" to condition code 7
>>> mapping condition label "42" to condition code 8
>>>
>>> data =
>>>
>>>       fsample: 250.0000
>>>         label: {326x1 cell}
>>>          time: {1x8 cell}
>>>         trial: {1x8 cell}
>>>     trialinfo: [8x1 double]
>>>           cfg: [1x1 struct]
>>>
>>>
>>> *>> data2 = ft_checkdata(data, 'datatype', 'freq')*
>>>
>>> Warning: the data does not contain a trial definition, assuming that the
>>> trials are consecutive segments of a continuous recording
>>> > In utilities\private\warning_once at 81
>>>   In utilities\private\fixsampleinfo at 54
>>>   In ft_datatype_raw at 91
>>>   In ft_checkdata at 170
>>> Error using ft_checkdata (line 288)
>>> This function requires freq data as input.
>>>
>>>
>>>
>>> _______________________________________________
>>> fieldtrip mailing list
>>> fieldtrip at donders.ru.nl
>>> http://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>>
>>
>>
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>>
>
>
>
> --
>
> Zita Patai
> DPhil, Experimental Psychology
> University of Oxford
> bcl.psy.ox.ac.uk/people/zita-eva-patai/
>