[Eeglablist] topoplot-connect. m plot absolute value

Makoto Miyakoshi mmiyakoshi at ucsd.edu
Tue Apr 21 11:15:24 PDT 2015

Dear Muhammad,

Sorry for inconvenience. Could you please file it to EEGLAB Bugzilla?
I appreciate your cooperation and patience. Thank you.


On Mon, Apr 20, 2015 at 3:05 AM, M Abul Hassan <abulhassan85 at yahoo.com>

> Dear eeglab users,
> I am interested to plot (among all channels) task related coherence using
> topoplot_connect.m file [ref: Delorme A & Makeig S (2004) EEGLAB: an open
> source toolbox for analysis of single-trial EEG dynamics. Journal of
> Neuroscience Methods 134:9-21]. The values for task related coherence are
> both negative and positive. While plotting with the topoplot_connect.m,
> negative values are plotted as an absolute value. In the line 63 of the m file
> (topoplot_connect.m), I remove the abs command [plotchans = abs
> (plotchans);]but program still plot absolute values.
> Please suggest how to plot both positive and negative values. If some
> other program is available to plot connectivity among all channels, please
> let me know. Any suggestion would be highly appreciable.
> Thanks
> Best Regards
> Muhammad Abul Hasan
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Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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