[Mne_analysis] raw.plot() not working for EGI data file

[Denis-Alexander Engemann]

For now, save the raw to a fiff file via raw.save and load it into memory.
The round trip will ensure things are correct. We might probably want to
relax type checks. Technically, after reading the EGI data the way data are
represented does not match a hundred percent the default MNE data container.

Denis
On Mon, 24 Apr 2017 at 10:46, Le Wang <lwang at bu.edu> wrote:

> Hi, MNE-users,
>
> I use mne.io.read_raw_egi to load the simple binary files from EGI into a
> raw object. Then when I use raw.plot(), it complains that "ValueError: Must
> supply either Raw or Epochs" (Line 1492 in utils.py in the function
> "_compute_scalings"). The error is raised because mne doesn't consider the
> raw object created from EGI as an instance of the BaseRaw class.
> "type(raw)" returns mne.io.egi.egi.RawEGI.
>
> I only started to see this error after a recent update of the mne from
> 0.10 to 0.15.dev0, and raw.plot() worked fine for EGI files in my previous
> version of mne.
>
> I wonder if anyone knows a solution to this problem. Thank you!
>
> Best
>
> Le
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