[FieldTrip] Granger convention

[Gio Piantoni]

Hi all,

I'm resurrecting an old post, because I found the answer in
ft_connectivityplot and it might useful to other people:

line 122:
% use the convention of the row-channel causing the column-channel

I updated the wiki as well. Please, correct me if this is not the
correct convention.

Best,

Gio

On Wed, Aug 17, 2011 at 13:43, Gio Piantoni <g.piantoni at nin.knaw.nl> wrote:
>
> Hi all,
>
> The connectivity toolbox is very powerful and straightforward to use,
> thanks for that! However, I did not find any information about the
> convention used by Fieldtrip to represent asymmetrical connectivity
> measures (such as granger causality), f.e. in the help of the
> functions, in http://fieldtrip.fcdonders.nl/faq/in_what_way_can_frequency_domain_data_be_represented_in_fieldtrip
> nor in http://fieldtrip.fcdonders.nl/development/connectivity_tutorial
>
> Do the values in data.grangerspctrm(1, 2, :) represent the
> granger-causality values from channel 1 to channel 2 or the other way
> round?
>
> BTW, is it possible to run time-domain granger causality in Fieldtrip?
>
> Thanks!
>
> Gio
>
> --
> Giovanni Piantoni, Ph.D. student
> Dept. Sleep & Cognition
> Netherlands Institute for Neuroscience
> Meibergdreef 47
> 1105 BA Amsterdam (NL)
>
> +31 (0)20 5665492
> g.piantoni at nin.knaw.nl
> www.giovannipiantoni.com