[Mne_analysis] synchronized data, different frequencies?

[arlduc]

Hi Alex and MNE list,

It turns out there are some small irregularities in the frequency of our 
EOG data, so when we try to add the EOG channel to the EEG, we're 
getting the error
"All dimensions in channels must match."
Is there a workaround for this?

Thanks,
Arlene Ducao


On 3/5/18 3:33 PM, Alexandre Gramfort wrote:
> Hi,
>
> yes create 2 Raw object than resample the EOG one to 512Hz
> with raw.resample : 
> https://martinos.org/mne/stable/generated/mne.io.Raw.html#mne.io.Raw.resample 
> <https://martinos.org/mne/stable/generated/mne.io.Raw.html#mne.io.Raw.resample>
> and then you can use raw.add_channels 
> https://martinos.org/mne/dev/generated/mne.io.Raw.html#mne.io.Raw.add_channels 
> <https://martinos.org/mne/dev/generated/mne.io.Raw.html#mne.io.Raw.add_channels>
>
> let us know if it does not work
>
> HTH
> Alex
>
> On Mon, Mar 5, 2018 at 9:24 PM, arlduc <mit at arlduc.org 
> <mailto:mit at arlduc.org>> wrote:
>
>     Hello,
>
>     I am preparing an MNE dataset from scratch. My data contains EEG
>     channels sampled at 512 Hz, and EOG channels sampled at 1 Hz. I'm not
>     sure how to synchronize this data within one Raw object. Is there
>     a way
>     to do this? Or should I store the EEG in one Raw object, and the EOG
>     data in another Raw object?
>
>     Thanks,
>     Arlene Ducao
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