[FieldTrip] topoplot of vector

[Fanny Quandt]

Hi Arjen,

thank you very much!
It works perfectly and seems way easier than to go into ft_plot_topo ( which I also tried earlier :)).

I appreciate your help,
Fanny

Am 25.05.2012 um 11:00 schrieb Stolk, A.:

> Hi Fanny,
> 
> If you want to plot results that are not the output from a ft function, you could try and place the obtained vector in a ft-alike structure.
> 
> For example;
> data.powspctrm = your_vector_here; % [N x 1]
> data.freq = 1;
> data.label = your_label_here; % {1 x N}
> data.dimord = 'chan_freq';
> ft_topoplotER(cfg,data)
> 
> The topoplot function is deprecated and still in the software package for compatibility reasons. Alternatively, have a look how ft_topoplotER/TFR calls the low-level ft_plot_topo function. I recon the above solution is easier.
> 
> Hope this helps,
> Arjen
> 
> 
> ----- Oorspronkelijk bericht -----
>> Van: "Fanny Quandt" <fannyquandt at gmail.com>
>> Aan: fieldtrip at donders.ru.nl
>> Verzonden: Vrijdag 25 mei 2012 10:12:58
>> Onderwerp: [FieldTrip] topoplot of vector
>> Dear Fieldtrip-User,
>> 
>> I am trying to plot some results ( one value per channel) using a
>> topoplot function.
>> Since I am working with ECoG data, I specified my own layout with
>> ft_prepare_layout. Plotting my results obtain from ft_freqanalysis
>> using ft_topoplotER works just fine.
>> 
>> Now 2 Questions:
>> 
>> 1) Is there a way to plot data, using ft_topoplotER , which is not
>> obtain from freqanalysis or timelocked analysis, but which is only a
>> vector.
>> 
>> 2) I tried using the function topoplot (topoplot(cfg,dat) where cfg
>> contained the layout. However I get the following error message. It
>> might be that some points of my mask fall outside the outline, which
>> does not cause a problem using ft_topoplotER.
>> 
>> Undefined function 'inside_contour' for input arguments of type
>> 'double'.
>> 
>> Error in topoplot (line 488)
>> maskA(inside_contour([Xi(:) Yi(:)], cfg.layout.mask{i})) = true;
>> 
>> 
>> I would very much appreciate any help.
>> Best,
>> Fanny
>> 
>> 
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