<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>不一定。</div><div>我想把成对的功能连接值重回大脑显示，这个老美的讨论是否给你提示呢，所以，转给你了<br><br>发自我的 iPad</div><div><br>在 2016年4月29日，6:21，JR KING <<a href="mailto:jeanremi.king@gmail.com">jeanremi.king@gmail.com</a>> 写道：<br><br></div><blockquote type="cite"><div><div dir="ltr"><div><div><div><div>Dear Peng,<br><br></div>You shouldn't save your covariance in a text file. Covariance object contains headers/metadata<br><br></div>You should do:<br></div><br>import mne<br>epochs = mne.read_epochs(epochs_path) <br></div><div><br># compute covariance<br></div><div>cov = mne.compute_covariance(epochs, tmax=0.)<br><br></div><div># save covariance object<br></div><div>cov.save('my_file-cov.fif')<br><br></div># read covariance object<div>cov = mne.read_cov(fname_cov)<br><br><br></div><div>Try following the website tutorials first:<br><a href="http://martinos.org/mne/dev/auto_examples/io/plot_read_noise_covariance_matrix.html#sphx-glr-auto-examples-io-plot-read-noise-covariance-matrix-py">http://martinos.org/mne/dev/auto_examples/io/plot_read_noise_covariance_matrix.html#sphx-glr-auto-examples-io-plot-read-noise-covariance-matrix-py</a><br><a href="http://martinos.org/mne/dev/faq.html#how-should-i-regularize-the-covariance-matrix">http://martinos.org/mne/dev/faq.html#how-should-i-regularize-the-covariance-matrix</a><br><br></div><div>Best,<br><br></div><div>Jean-Rémi<br></div><div><div><pre><br></pre><br></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On 28 April 2016 at 17:17, Peng Zan <span dir="ltr"><<a href="mailto:zanpeng.pz@gmail.com" target="_blank">zanpeng.pz@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear mne expert,<div><br></div><div>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.</div><div><br></div><div>
<p><span>>>> cov = open('/Users/Peng/Documents/MNE/MNE_analysis/MNE_TRFs/MEG/R2262_S0807/R2262cov.txt'); cov_matrix = cov.read()</span></p>
<p><span>>>> mne.write_cov('/Users/Peng/Documents/MNE/MNE_analysis/MNE_TRFs/MEG/R2262_S0807/R2262_trf-cp-cov.fif',cov_matrix)</span></p>
<p><span>Traceback (most recent call last):</span></p>
<p><span> File "<stdin>", line 1, in <module></span></p>
<p><span> 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</span></p>
<p><span> cov.save(fname)</span></p>
<p><span>AttributeError: 'str' object has no attribute 'save'</span></p><p><span><br></span></p><p>Do you have any idea how should this work?</p><p>Thank you very much!</p><p>Sincerely,</p><p>Peng</p></div></div>
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