[Mne_analysis] Issue when reading gdf files {Disarmed}

[Alexandre Gramfort]

        External Email - Use Caution        

hi Apostolos,

I suspect a bug in the GDF reader.

please open an issue on github providing the url of the problematic file.

Thanks for reporting the issue

Alex


On Sun, Nov 29, 2020 at 5:18 PM Apostolos Praftsiotis <apospraf at gmail.com>
wrote:

>         External Email - Use Caution
>
> Hello everyone!
>
> For the last month I've been toying around with the BCI IV 2a dataset and
> I noticed a weird behaviour when I used read_raw_gdf function to import the
> data. Particularly, when I tried to plot the gdf data the plot looked
> something like this:
> *> raw = mne.io.read_raw.gdf(gdf_path)*
> *> raw.plot()*
> [image: figure1.png]
>
> Today, I noticed that in the *MailScanner has detected a possible fraud
> attempt from "secure-web.cisco.com" claiming to be* raw.info
> <http://secure-web.cisco.com/1tf0jte3giT4_FYAKjyvbNhol4wm9ZVoZ5Eb-cFanIfJoQCtmSz6mz_3EJ1fGdOgXmvos8bfMyexQxmytKbVHgvTvKhSY3R0dR8vnYVtu7EFCDa5PxbSvepOe-obq-tgYcmfHLoi6pnCKAOzLdtLtKMANmylz8o1nbSTg5iAwb25QtDzRQCCFmUQh0hMHzvWhTNpkVD6F1IweswHL-Rz7cyQ5ZFIAGArw8_3reKmvkpV6Y97VaF7CiBU0LRquSB5C6SFjDcnSjPrbRYCxUGXqig/http%3A%2F%2Fraw.info>
> the lowpass and highpass values where switched
> *> MailScanner has detected a possible fraud attempt from
> "secure-web.cisco.com" claiming to be raw.info
> <http://secure-web.cisco.com/1tf0jte3giT4_FYAKjyvbNhol4wm9ZVoZ5Eb-cFanIfJoQCtmSz6mz_3EJ1fGdOgXmvos8bfMyexQxmytKbVHgvTvKhSY3R0dR8vnYVtu7EFCDa5PxbSvepOe-obq-tgYcmfHLoi6pnCKAOzLdtLtKMANmylz8o1nbSTg5iAwb25QtDzRQCCFmUQh0hMHzvWhTNpkVD6F1IweswHL-Rz7cyQ5ZFIAGArw8_3reKmvkpV6Y97VaF7CiBU0LRquSB5C6SFjDcnSjPrbRYCxUGXqig/http%3A%2F%2Fraw.info>*
>
>
>
>
>
>
>
>
>
>
>
>
> *<Info | 9 non-empty values bads: [] ch_names: EEG:C3, EEG:Cz, EEG:C4 chs:
> 3 EEG custom_ref_applied: False file_id: 4 items (dict) highpass: 100.0
> Hz lowpass: 0.5 Hz meas_date: 2005-10-25 09:35:11 UTC meas_id: 4 items
> (dict) nchan: 3 projs: [] sfreq: 250.0 Hz*
>
> So, I switched the values of the filters and everything worked fine as
> shown below
> *> MailScanner has detected a possible fraud attempt from
> "secure-web.cisco.com" claiming to be raw.info
> <http://secure-web.cisco.com/1tf0jte3giT4_FYAKjyvbNhol4wm9ZVoZ5Eb-cFanIfJoQCtmSz6mz_3EJ1fGdOgXmvos8bfMyexQxmytKbVHgvTvKhSY3R0dR8vnYVtu7EFCDa5PxbSvepOe-obq-tgYcmfHLoi6pnCKAOzLdtLtKMANmylz8o1nbSTg5iAwb25QtDzRQCCFmUQh0hMHzvWhTNpkVD6F1IweswHL-Rz7cyQ5ZFIAGArw8_3reKmvkpV6Y97VaF7CiBU0LRquSB5C6SFjDcnSjPrbRYCxUGXqig/http%3A%2F%2Fraw.info>["highpass"]
> = 0.5*
> *> MailScanner has detected a possible fraud attempt from
> "secure-web.cisco.com" claiming to be raw.info
> <http://secure-web.cisco.com/1tf0jte3giT4_FYAKjyvbNhol4wm9ZVoZ5Eb-cFanIfJoQCtmSz6mz_3EJ1fGdOgXmvos8bfMyexQxmytKbVHgvTvKhSY3R0dR8vnYVtu7EFCDa5PxbSvepOe-obq-tgYcmfHLoi6pnCKAOzLdtLtKMANmylz8o1nbSTg5iAwb25QtDzRQCCFmUQh0hMHzvWhTNpkVD6F1IweswHL-Rz7cyQ5ZFIAGArw8_3reKmvkpV6Y97VaF7CiBU0LRquSB5C6SFjDcnSjPrbRYCxUGXqig/http%3A%2F%2Fraw.info>["lowpass"]
> = 100*
> *> raw.plot()*
> [image: figure2.png]
>
> Am I doing something wrong when reading the gdf files?
>
> Regards,
> Apostolis
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> https://secure-web.cisco.com/1k2BBg1Q5PInJO2biJsDMAeQ18y2RbQUuucWVzxoillpxDAA0fU8BR9OqoTlJ0rv6CTMMUObQH2cOrm2iQKYB_hCupJdQDqlEzMj0by560Bk4QXmki4Y8v46Emz0NlV55cxYkLnnYCd36S1LEf1S6T8yEa_S3V47K3g3J0IbcZ-OJVmyCpEH7NC6YmTkWndx5vGViD0sUN2KOQv3HDOGQbPum3bEGpuE2A497odWdNYi7Z_pI73DarFwFyvhaXkqXPhctSjhehi2EO6v7tkF4yQ/https%3A%2F%2Fmail.nmr.mgh.harvard.edu%2Fmailman%2Flistinfo%2Fmne_analysis
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