Mauricio,
Did you set `eog=True` in the arguments to `mne.fiff.pick_types` i.e.,
picks=mne.fiff.pick_types(info, meg=False, eeg=True, stim=False, eog=True,
exclude=[])
If the picks array is built without your channels of interest then
mne.Epochs will throw the error you're seeing c.f. epoching example (
http://martinos.org/mne/stable/auto_examples/plot_from_raw_to_multiple_epochs_to_evoked.html
).
best,
Kambiz
The other possible scenario is that you need to change the sensor
type. This has been available in the latest code for ~ 1 month with
the mne.rename_channels function.
HTH
D
Hi!
Thanks for your answers.
Efectively I set "eog = True".
Would I have to set, when I read the raw edt, n_eeg to another value
instead of None?
Currently I'm doing that by
raw = read_raw_edf(input_fname = bdf_file, n_eeg = None, stim_channel = -1,
annot = None, annotmap = None, hpts = hpts_file, preload = False, verbose =
None)
On the other hand, I cannot find the documentation for mne.rename_channels.
Could you tell me what do I have to do, more specifically, with this
function?
All the best,
Mauricio.
2014-04-02 15:14 GMT-03:00 dgw <dgwakeman at gmail.com>:
The other possible scenario is that you need to change the sensor
type. This has been available in the latest code for ~ 1 month with
the mne.rename_channels function.HTH
D> Mauricio,
> Did you set `eog=True` in the arguments to `mne.fiff.pick_types` i.e.,
>
> picks=mne.fiff.pick_types(info, meg=False, eeg=True, stim=False,
eog=True,
> exclude=)
>
> If the picks array is built without your channels of interest then
> mne.Epochs will throw the error you're seeing c.f. epoching example
> (
http://martinos.org/mne/stable/auto_examples/plot_from_raw_to_multiple_epochs_to_evoked.html
).
>
> best,
> Kambiz
>
>
> ------------------------------------------------------------
> Kambiz Tavabi PhD
> Institute for Learning & Brain Sciences
> 1715 Columbia Road N
> Portage Bay Building
> Box 357988
> University of Washington
> Seattle, WA 98195-7988
> Tel: 206-685-6173
> ------------------------------------------------------------
>
>
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>> 1. how to set eog channels (Mauricio Asp? S?nchez)
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>> ----------------------------------------------------------------------
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>> Message: 1
>> Date: Wed, 2 Apr 2014 11:21:39 -0400
>> From: Mauricio Asp? S?nchez <mauricio.aspe.s at gmail.com>
>> Subject: [Mne_analysis] how to set eog channels
>> To: "mne_analysis at nmr.mgh.harvard.edu"
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>> Hi everybody,
>> sorry for all these newbie's questions, but I'm really interested in
>> migrate all my EEGLab analysis to Mne-Python.
>>
>> I'm trying to epoch my data, but the command
>>
>> epochs = mne.Epochs(raw, events = events, event_id = events_ids,
>> tmin = tmin, tmax = tmax, baseline = baseline, picks = picks,
>> preload = True, reject = dict(eeg = 80e-6, eog = 150e-6))
>>
>> gives me the error:
>>
>> ValueError: No EOG channel found. Cannot reject based on EOG.
>>
>> and I cannot figure out how to label the EOG channels in my raw
structure.
>>
>> How do I do that?
>>
>> Thanks for all,
>> Mauricio.
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hi Mauricio,
On the other hand, I cannot find the documentation for mne.rename_channels.
Could you tell me what do I have to do, more specifically, with this
function?
it's not released yet. You'll need to install the latest version on github.
code of the function is at:
https://github.com/mne-tools/mne-python/blob/master/mne/fiff/channels.py#L190
then the function is just accessible with
mne.rename_channels
HTH
Alex