[Mne_analysis] writting raw fif files with mne_ex_read_write_raw

Alexandre Gramfort gramfort at nmr.mgh.harvard.edu
Wed Apr 20 14:38:15 EDT 2011
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Hi Elisabeth,

may I ask what you want to do at the end? crop your data?

Alex

On Wed, Apr 20, 2011 at 12:33 PM, Elisabeth Fonteneau
<Elisabeth.Fonteneau at mrc-cbu.cam.ac.uk> wrote:
> Hello MNE users,
>
>
>
> I am trying to use the function in the example mne_ex_read_write_raw.m
>
>
>
> It works, quite well if for infile and outfile I am using the same data
>
>
>
> My point is that with the option line 74/75
>
> quantum_sec=10
>
> quantum = ceil(quantum_sec*raw.info.sfreq)
>
>
>
> the data matrix does not have the same number of data point compared to the
> original and I am struggling to understand  what the conversion is
>
>
>
>
>
> I would like to read the raw data in one set  and
>
> I tried to use the line 79 instead
>
> quantum = to – from +1
>
>
>
> And for this option the data is written but if I try to open the fif file
> with mne_browse_raw
>
> it crashed with the following error message
>
>
>
> *** glibc detected *** free():invalid pointer: 0x006a4860***
>
> Abort
>
>
>
> I also try to change line 74/75 by
>
> quantum_sec=1000
>
> quantum = ceil(quantum_sec*raw.info.sfreq)
>
>
>
> and it crashed mne_browse_raw in the same way as previous
>
>
>
> Any suggestions are highly appreciated.
>
>
>
> Thanks and best wishes,
>
>
>
> Elisabeth
>
>
>
> **********************
>
> NEW CONTACT DETAILS
>
> **********************
>
>
>
> Dr Elisabeth Fonteneau
>
>
>
> Neurolex Group
>
> Department of Experimental Psychology
>
> University of Cambridge
>
> Downing Street
>
> Cambridge CB2 3EB
>
> England
>
> Phone: +44 1223 333 548
>
> Email: ef309 at cam.ac.uk
>
> Web: http://www.mrc-cbu.cam.ac.uk/people/elisabeth.fonteneau/
>
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