[Mne_analysis] mne2grad on fiff file created by kit2fiff

[Alexandre Gramfort]

hi,

MNE has a dedicated coil type and a coif def file to specify the geometry
of the coil. If the file is working fine I guess it's a fieldtrip
problem to handle
these files properly.

Best,
Alex

On Mon, Mar 13, 2017 at 12:14 PM, Israr Ul Haq <Israr at nyu.edu> wrote:
> The fif file seems to be behaving perfectly fine when Im doing the
> preprocessing, artefact rejection, frequency transformation etc in fiedtrip.
>
> when fiieldtrip mentions mne2grad, they refer back to the mne software
> http://www.fieldtriptoolbox.org/getting_started/neuromag
>
> I guess the question is whats the difference between a normal .fif file
> (from neuromag) and a .fif file created by kit2fiff (from yokogawa)
> regarding storage of the coil and sensor location information.
>
> Thanks
> Israr
>
> On Mon, Mar 13, 2017 at 12:36 PM, Alexandre Gramfort
> <alexandre.gramfort at telecom-paristech.fr> wrote:
>>
>> hi Israr,
>>
>> I don't know hat Fieldtrip is doing. mne2grad.m is not an MNE function.
>>
>> Does the converted fif file look good?
>>
>> Best,
>> A
>>
>> On Sun, Mar 12, 2017 at 5:43 PM, Israr Ul Haq <israruh at gmail.com> wrote:
>> > Hi,
>> >
>> > I have some Yokogawa data which I have converted into .fif file using
>> > kit2fiff and I want to be able to read the .fif  file in FieldTrip.
>> > FieldTrip calls on the function mne2grad from the MNE toolbox to convert
>> > the
>> > header into a gradiometer structure that can be understood by field
>> > trip.
>> > The gradiometer structure  should look like the structure below, however
>> > when I try to do it, the grad field is missing. Does the mne2grad
>> > function
>> > not work for fiff files created by kit2fiff?
>> >
>> > hdr =
>> >
>> >           label: {317x1 cell}
>> >          nChans: 317
>> >              Fs: 1000
>> >            grad: [1x1 struct]
>> >            unit: {1x317 cell}
>> >        nSamples: 396000
>> >     nSamplesPre: 0
>> >         nTrials: 1
>> >
>> >            orig: [1x1 struct]
>> >
>> > Thanks,
>> > Israr
>> >
>> > _______________________________________________
>> > Mne_analysis mailing list
>> > Mne_analysis at nmr.mgh.harvard.edu
>> > https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>> >
>> >
>> > The information in this e-mail is intended only for the person to whom
>> > it is
>> > addressed. If you believe this e-mail was sent to you in error and the
>> > e-mail
>> > contains patient information, please contact the Partners Compliance
>> > HelpLine at
>> > http://www.partners.org/complianceline . If the e-mail was sent to you
>> > in
>> > error
>> > but does not contain patient information, please contact the sender and
>> > properly
>> > dispose of the e-mail.
>> >
>> _______________________________________________
>> Mne_analysis mailing list
>> Mne_analysis at nmr.mgh.harvard.edu
>> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>
>
>
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>
>
> The information in this e-mail is intended only for the person to whom it is
> addressed. If you believe this e-mail was sent to you in error and the
> e-mail
> contains patient information, please contact the Partners Compliance
> HelpLine at
> http://www.partners.org/complianceline . If the e-mail was sent to you in
> error
> but does not contain patient information, please contact the sender and
> properly
> dispose of the e-mail.
>