[Mne_analysis] Mne python compute covariance

[Alexandre Gramfort]

hi,

I could reproduce the problem. I opened I issue:

https://github.com/mne-tools/mne-python/issues/4140

We'll fix ASAP. For now use n_jobs=1.

Thanks for taking the time to report the bug.

Best,
Alex

On Thu, Mar 30, 2017 at 7:44 PM, Peter Goodin <pgoodin at swin.edu.au> wrote:
> Hi Alex,
>
>
> I'm using the standard mne.compute_covariance call
>
>
> cov = mne.compute_covariance(epochs['condition'], method = 'shrunk', n_jobs
> = 3).
>
>
> I've attached a link to the error below. Also, I've tried using the PCA
> method and get another error message (with the helpful suggestion to contact
> you guys at the end!). Please find the link below too.
>
>
> Peter.
>
>
> shrunk estimate:
> https://gist.github.com/orcasha/c990decc15f38a3300ffa6e2f976eb25
>
>
> PCA estimate:
> https://gist.github.com/orcasha/443bc7e74fd3e7e50a7ce1371b4bef31
>
>
>
> _______________________
> Dr Peter Goodin,
>
> Brain and Psychological Sciences Research Centre (BPsyC)
> Swinburne University,
> Hawthorn, Vic, 3122
> ________________________________
> From: mne_analysis-bounces at nmr.mgh.harvard.edu
> <mne_analysis-bounces at nmr.mgh.harvard.edu> on behalf of Alexandre Gramfort
> <alexandre.gramfort at telecom-paristech.fr>
> Sent: 28 March 2017 21:00:42
> To: Discussion and support forum for the users of MNE Software
> Subject: Re: [Mne_analysis] Mne python compute covariance
>
> hi Peter,
>
> can you share a gist to replicate the problem?
>
> I think I know what's going on but with a gist I am sure it fixes your pb.
>
> thx
> Alex
>
> On Tue, Mar 28, 2017 at 12:58 AM, Peter Goodin <pgoodin at swin.edu.au> wrote:
>> Hi,
>>
>> I'm getting the following error
>> (PicklingError: Can't pickle <class 'mne.cov._ShrunkCovariance'>: it's not
>> found as mne.cov._ShrunkCovariance)
>> when running computing covariance. It happens at the cross validation
>> stage.
>>
>> Any help would be appreciated.
>>
>> Thanks,
>>
>> Peter
>>
>>
>>
>>
>>
>> _______________________
>> Dr Peter Goodin,
>>
>> Brain and Psychological Sciences Research Centre (BPsyC)
>> Swinburne University,
>> Hawthorn, Vic, 3122
>>
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