[FieldTrip] MNE fiff_read / write_raw_segment

[Alexandre Gramfort]

hi Peter,

when you add channels to a fif structure you need to update the measurement
information (channels names, types etc.). With your notations you should update
fh.info.chs

hope this helps
Alex

On Thu, Jan 24, 2013 at 2:59 AM, Peter Goodin <pgoodin at swin.edu.au> wrote:
> Hi Fieldtrip list,
>
> I'm trying to add an altered channel and save it as a new fiff file using
> the MNE commands from the external/MNE dir in Fieldtrip, but seem to just
> keep getting the data from the old fiff file instead.
>
> The code I'm currently using is:
>
> To read:
> fh = fiff_setup_read_raw('input.fif');
> f = fiff_read_raw_segment(fh);
>
> After adding in the altered channel data to f, I then use:
>
> fiff_write_raw_segment(output.fif, fh);
>
> What I thought would happen is output.fif would use the information in f and
> fh to write output.fif, but what seems to be happening is the data in f is
> being ignored.
>
> Does anyone have any ideas on how to insert the altered channel data then
> write it back out as a fiff file?
>
> Thanks,
>
> Peter.
>
>
>
>
> __________________________
> Peter Goodin,
> BSc (Hons), Ph.D Candidate.
>
> Brain and Psychological Sciences Research Centre (BPsych)
> Swinburne University,
> Hawthorn, Vic, 3122
>
> Monash Alfred Psychiatry Research Centre (MAPrc)
> Level 1, Old Baker Building
> Commercial Road
> Melbourne, Vic, 3004
>
>
>
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