[Mne_analysis] mne_compute_Raw_inverse and snr option

[Alexandre Gramfort]

hi Elisabeth,

mne_compute_raw_inverse uses SNR=1 by default.

Best,
Alex

On Mon, Mar 18, 2013 at 3:41 PM, Elisabeth Fonteneau <ef309 at cam.ac.uk> wrote:
> Hello all,
>
>
>
> I’d like to ask a question about mne_compute_raw_inverse and snr option.
>
> I’m working with raw fif files and I recently read on this mailing list that
> for single trial analysis (which I want to do) we should use a lower snr
> (for ex 1) instead of the default option (snr=3)
>
> Now I’m using the command mne_compute_raw_inverse with the following
> options:
>
> --in <fif file>
>
> --inv <inv file>
>
> --labeldir <label file>
>
> --spm
>
> --snr 1
>
> --out <output file>
>
>
>
> I compared my file previously computed with no srn option (should be
> default, snr=3) and the one obtain with snr=1 option, I have the same
> output. Now if I force with snr=3, the file is different from the one
> computed with no snr option?? I also have the same pattern if I remove the
> spm option..
>
>
>
> My file has a nave=1 (raw) does this mean that MNE is adapting the snr to
> the appropriate level of noise regarding the nave number if the snr option
> is not used?
>
>
>
> Thanks in advance for your answer
>
> Best
>
> Elisabeth
>
>
>
>
>
>
>
> __________________________________________________________
>
>
>
> Dr Elisabeth Fonteneau
>
> Neurolex Group
>
> Department of Psychology
>
> University of Cambridge
>
> Downing Street, Cambridge CB2 3EB, UK
>
> Phone: +44 1223 333 548
>
> Email: ef309 at cam.ac.uk
>
> Web: www.neurolex.psychol.cam.ac.uk/directory/ef309 at cam.ac.uk
>
>
>
>
>
>
>
>
>
>
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