[Mne_analysis] Need Help to do Cross Spectral Density Analysis

[MD KHORSHED ALAM]

Hi,

Thank you for your suggestion.

However,

Code: epochs = mne.Epochs(eeg_channels, events=events, event_id=event_id, tmin=-0.2, tmax=0.5, proj=True, baseline=(None, 0), preload=True)
X=epochs['aud_l', 'aud_r', 'vis_l', 'vis_r', 'smiley', 'button'].get_data()
print(X.shape)
Output:

320 matching events found
3 projection items activated
Loading data for 320 events and 421 original time points ...
0 bad epochs dropped
(320L, 60L, 421L)


Then i have applied 3D array 'X' to:  mne.time_frequency.csd_array(X, sfreq, mode='multitaper', fmin=0, fmax=35.0, fsum=False, n_fft=None, mt_bandwidth=None, mt_adaptive=False, mt_low_bias=True, verbose=None)


But still getting the following errors:


ValueError                                Traceback (most recent call last)
<ipython-input-177-d7b62b6f3fe7> in <module>()
----> 1 mne.time_frequency.csd_array(X, sfreq, mode='multitaper', fmin=0, fmax=35.0, fsum=False, n_fft=None, mt_bandwidth=None, mt_adaptive=False, mt_low_bias=True, verbose=None)


ValueError: when using select="i", select_range must contain integers, got dtype int64



Thanks With Warm Regards,

MD. KHORSHED ALAM (Shishir)

Graduate Research Assistant (GRA)

Center of Intelligent Signal and Imaging Research (CISIR)
Department of Electrical and Electronic Engineering
Universiti Teknologi PETRONAS
Bandar Seri Iskandar
32610 Tronoh
Perak Darul Ridzuan
Malaysia

Mobile no: +60176459080
Email ID: khorshed.alam at live.iium.edu.my<mailto:khorshed.alam at live.iium.edu.my>
Alternative :shishir_lmu at yahoo.com<mailto:shishir_lmu at yahoo.com>, alam.0213 at gmail.com<mailto:alam.0213 at gmail.com>

________________________________
From: mne_analysis-bounces at nmr.mgh.harvard.edu <mne_analysis-bounces at nmr.mgh.harvard.edu> on behalf of Brunner, Clemens (clemens.brunner at uni-graz.at) <clemens.brunner at uni-graz.at>
Sent: Tuesday, January 9, 2018 8:40:03 AM
To: Discussion and support forum for the users of MNE Software
Subject: Re: [Mne_analysis] Need Help to do Cross Spectral Density Analysis

Hi!

You can use the get_data method on your Epochs object, e.g.

X = epochs.get_data()

will return a 3D array of the desired shape.

HTH
Clemens


> On Jan 9, 2018, at 07:25, MD KHORSHED ALAM <khorshed.alam at live.iium.edu.my> wrote:
>
> Hi,
>
> I want to do CSD analysis on EEG data but facing problem with the following function:
>
> csd_array(X, sfreq, mode='multitaper' fmin=0 fmax=np.inf, fsum=True, n_fft=None, mt_bandwidth=None, mt_adaptive=False, mt_low_bias=True, verbose=None):
>
> I am unable to extract the "X" parameter values. Can you let me know the file where "X" (data matrix) structure is defined in order to have a better idea about "X" parameter.
>
> Thank you.
>
>
>
>
>
> Thanks With Warm Regards,
> MD. KHORSHED ALAM (Shishir)
> Graduate Research Assistant (GRA)
> Center of Intelligent Signal and Imaging Research (CISIR)
> Department of Electrical and Electronic Engineering
> Universiti Teknologi PETRONAS
> Bandar Seri Iskandar
> 32610 Tronoh
> Perak Darul Ridzuan
> Malaysia
> Mobile no: +60176459080
> Email ID: khorshed.alam at live.iium.edu.my
> Alternative :shishir_lmu at yahoo.com, alam.0213 at gmail.com
>
> _______________________________________________
> Mne_analysis mailing list
> Mne_analysis at nmr.mgh.harvard.edu
> https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
>
>
> The information in this e-mail is intended only for the person to whom it is
> addressed. If you believe this e-mail was sent to you in error and the e-mail
> contains patient information, please contact the Partners Compliance HelpLine at
> http://www.partners.org/complianceline . If the e-mail was sent to you in error
> but does not contain patient information, please contact the sender and properly
> dispose of the e-mail.


_______________________________________________
Mne_analysis mailing list
Mne_analysis at nmr.mgh.harvard.edu
https://mail.nmr.mgh.harvard.edu/mailman/listinfo/mne_analysis
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/mne_analysis/attachments/20180114/6702afda/attachment-0001.html