[Mne_analysis] Classification result by dropping some side electrodes

[Michael Martinez]

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Thank you very much for the answer. I have 35 samples from first class vs
65 samples from second class. I'm using the TSClassifier with the
covariance matrices. The variance in the accuracy was about 4%.

Thanks for your help and for your suggestions


Alexandre Gramfort <alexandre.gramfort at inria.fr>, 30 Nis 2019 Sal, 09:57
tarihinde şunu yazdı:

>         External Email - Use Caution
>
> hi,
>
> how many trials/samples do you have? What is the variance of the accuracy
> over folds? I am asking to know if your conclusions of "better" are strong
> or could be due to variance/randomness in the estimation.
>
> Alex
>
> On Sat, Apr 27, 2019 at 11:03 PM Michael Martinez
> <michaelmart1977 at gmail.com> wrote:
> >
> >         External Email - Use Caution
> >
> > Hi all,
> > I have eeg data for hand movement recorded from 32 electrodes. I did the
> classification and got an accuracy. I removed the electrodes on the sides.
> And did the classification for only 16 electrodes (over the motor cortex).
> I got lower accuracy. (I think this is due to the high connectivity).
> > Then I wanted to see how the classification would be for the rest
> electrodes. So I dropped (removed) the electrodes over the motor cortex and
> chose only the electrodes on the sides. Surprisingly I got better results
> by choosing the electrodes on the sides than the case when choosing the
> electrodes over the motor cortex?
> > Is it normal? I'm new to this. I think you have more experience and
> knowledge than me.
> >
> > Thanks in advance for any help
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