[FieldTrip] Problem with Geodesic 129 layout!!

[Ana Laura Diez Martini]

Try this one <https://www.dropbox.com/s/58zv658rtdant2c/GSN129.sfp?dl=0> I
use


On Sun, Aug 24, 2014 at 4:08 AM, KatrinH Heimann <katrinheimann at gmail.com>
wrote:

> Dear all, my problems seem neverending. This time however i really need
> help.
> I implemented a pipeline for ERPs. All works now, trialdefinition,
> preprocessing, channelreplacement, ica, componentrejection, final
> artifactdetection, timelock of the single subject data. However, when I
> wanna compute the grandaverage of the single subjects I get the following
> error message:
>
> computing average of avg over 19 subjects
> Warning: discarding electrode information because it cannot be averaged
> > In ft_timelockgrandaverage at 249
> the call to "ft_timelockgrandaverage" took 0 seconds and required the
> additional allocation of an estimated 3 MB
> computing average of avg over 2 subjects
> Warning: discarding electrode information because it cannot be averaged
> > In ft_timelockgrandaverage at 249
> the call to "ft_timelockgrandaverage" took 0 seconds and required the
> additional allocation of an estimated 0 MB
> the call to "ft_prepare_layout" took 0 seconds and required the additional
> allocation of an estimated 0 MB
> the call to "ft_topoplotER" took 0 seconds and required the additional
> allocation of an estimated 0 MB
>
> Furthermore in the plot of the significant clusters, the channelnames are
> mixed up (do not correspond to my net)
>
>
> I guess that there is a problem with the layout I use.
> Here the code that I use
>
> %For generating the layout (also in the single subjects):
>
> cfg = [];
>
> cfg.channel  = obs_data.label;
>
> cfg.layout   = 'GSN-HydroCel-129.sfp';
>
> cfg.feedback = 'yes';
>
> lay          = ft_prepare_layout(cfg);
>
>
>
> cfg_neighb          = [];
>
> cfg_neighb.feedback = 'yes';
>
> cfg_neighb.method   = 'triangulation';
>
> cfg_neighb.layout   = lay;
>
> neighbours          = ft_prepare_neighbours(cfg_neighb, obs_data);
>
>
>
> obs_data.elec = ft_read_sens('GSN-HydroCel-129.sfp');
>
>
> %For computing the grand average
>
> cfg = [];
>
> cfg.channel   = 'all';
>
> cfg.latency   = 'all';
>
> cfg.parameter = 'avg';
>
> cfg.keepindividual = 'no'
>
> GA_90         = ft_timelockgrandaverage(cfg,all90{:});
>
> GA_180        = ft_timelockgrandaverage(cfg,all180{:});
>
> % "{:}" means to use data from all elements of the variable
>
>
>
> For plotting the significant clusters
>
> cfg = [];
>
> cfg.style     = 'blank';
>
> cfg.layout    = lay;
>
> cfg.channellabels = 'yes';
>
> cfg.highlight = 'labels';
>
> cfg.highlightchannel = find(stat.mask);
>
> cfg.comment   = 'no';
>
> figure; ft_topoplotER(cfg, GA_90)
>
> title('Nonparametric: significant with cluster multiple comparison
> correction')
>
>
> Do you have ANY idea to this? I am really completely helpless....
>
> thanks and best
>
> Katrin
>
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