[FieldTrip] Classification with connectivity analysis

[Elif Tülay]

 Dear Jan-Mathijs,

I have 3 groups including 20, 21, and 21 subjects respectively and
cohspctrm dimension ( 'chancmb_freq' ) for each subject varies according to
the freq ranges, for example for lower frequency coherences it is 8x7 but
for gamma 8x37. For the overall coherence values in the range of 0.1 -50
Hz, it is 8 x 101. Also, I have 3 conditions (Actually I just tried to run
for 1 condition for 3 groups). The problem is the size of data? Are these
features enough to perform classification analysis with MVPA machinery?

Thanks for your answer.

Best,

Elif

On Mon, Jan 23, 2023 at 7:35 PM Schoffelen, J.M. (Jan Mathijs) via
fieldtrip <fieldtrip at science.ru.nl> wrote:

> Hi Elif,
>
> What will be the sample dimension if you want to operate the MVPA
> machinery with a ‘cohspctrm’?
>
> Best wishes,
> Jan-Mathijs
>
>
> On 22 Jan 2023, at 14:05, Elif Tülay via fieldtrip <
> fieldtrip at science.ru.nl> wrote:
>
> Dear Fieldtrippers,
>
> I wonder if we could use FieldTrip integrated MVPA_light Toolbox with the
> output of  ft_connectivityanalysis. I could not see any information in
> the tutorials. Also, I tried to perform it via ft_freqstatistics but I
> got an error message like "field 'powspctrm' not present in data '' as
> guessed since the parameter became *cohspctrm *after connectivity
> analysis.
>
> Is there any way to do that?
>
> Many thanks in advance,
> Elif
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