[Mne_analysis] mne.write_cov error

[Teon Brooks]

Hi Peng,

Do you have a traceback of why it failed with mne.write_cov? Did you try
Cov.save with your covariance matrix object?

Could you try those and see if that works?
On Thu, Apr 28, 2016 at 17:17 Peng Zan <zanpeng.pz at gmail.com> wrote:

> Dear mne expert,
>
> I wanted to write a covariance matrix into a *-cov.fif file using python
> command 'mne.write_cov' but failed. I saved the covariance matrix into a
> txt file 'R2262.txt' and then read it via python to cov_matrix. The error
> occurred in the step of 'write_cov'. In tutorial, only file name and the
> matrix are needed. Everything should be correct but it said 'str' had no
> attribute 'save'. The detail is as follows.
>
> >>> cov =
> open('/Users/Peng/Documents/MNE/MNE_analysis/MNE_TRFs/MEG/R2262_S0807/R2262cov.txt');
> cov_matrix = cov.read()
>
> >>>
> mne.write_cov('/Users/Peng/Documents/MNE/MNE_analysis/MNE_TRFs/MEG/R2262_S0807/R2262_trf-cp-cov.fif',cov_matrix)
>
> Traceback (most recent call last):
>
>   File "<stdin>", line 1, in <module>
>
>   File
> "/Users/Peng/Library/Python/2.7/lib/python/site-packages/mne-0.12.dev0-py2.7.egg/mne/cov.py",
> line 1181, in write_cov
>
>     cov.save(fname)
>
> AttributeError: 'str' object has no attribute 'save'
>
>
> Do you have any idea how should this work?
>
> Thank you very much!
>
> Sincerely,
>
> Peng
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-- 
teon
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