[FieldTrip] how to make the cfg.selectfeature work in ft_databrowser?

[Diego Lozano-Soldevilla]

Hi Thomas,
Thank you for your response. It seems is not working well so I'll file a
bug and figure out how to fix it.
best,
Diego

On 7 April 2017 at 17:45, Thomas Kustermann <tfkustermann at gmail.com> wrote:

> Hello Diego,
>
> taking a look at the underlying code it seems that while multiple input
> arguments to cfg.selectfeature are accepted and passed on to
> artfctdef.xxx.artifact (line 403), the function then attempts to select the
> current artifact from cfg.selectfeature even when multiple arguments are
> entered.
> opt.ftsel       = find(strcmp(artlabel,cfg.selectfeature)); % current
> artifact/feature being selected (line 629)
>
> You could either change this line to:
> opt.ftsel       = find(strcmp(artlabel,cfg.selectfeature{1})); % current
> artifact/feature being selected
>
> automatically selecting the first input argument to cfg.selectfeature as
> default selection in ft_databrowser or you could write them to the cfg.artfctdef.xxx.artifact
> manually:
>
> cfg.selectfeature = 'a';
> cfg.artfctdef.a.artifact = zeros(0,2);
> cfg.artfctdef.b.artifact = zeros(0,2);
> ...
>
> Best,
> Thomas
>
>
>
> On Fri, Mar 31, 2017 at 4:40 PM, Diego Lozano-Soldevilla <
> dlozanosoldevilla at gmail.com> wrote:
>
>> Hi all,
>>
>> I'm using ft_databrowser to inspect sleep data and I want to visually
>> mark different events (spindles, k-complexes, artifacts, so forth) and
>> asign them to different cfg.artfctdef.xxx.artifact substructures. Could
>> somebody help me to mark different artifact trial types using the
>> cfg.selectfeature option? Please find below the code and data to reproduce
>> the error I got. I'm using the very last fieldtrip version on windows with
>> matlab 7.9b.
>>
>> Thanks beforehand,
>>
>> Diego
>>
>>
>>
>> data = [];
>> data.label = {'Fpz';'F7';'F3';'Fz';'F4';'F8';'C3';'Cz';'C4';'P3';'Pz';'P4
>> ';'O1';'Oz';'O2'};
>> data.fsample = 250;
>> data.trial{1} = rand(size(data.label,1),data.fsample*30);
>> data.time{1} = (1:data.fsample*30)./data.fsample;
>>
>> cfg         = [];
>> cfg.length  = 2;
>> cfg.overlap = 0;
>> trl = ft_redefinetrial(cfg,data);
>>
>>
>> cfg           = [];
>> cfg.channel   = 'all';
>> cfg.blocksize = 2;
>> cfg.selectfeature = {'a';'b'};
>> cfg.viewmode  = 'vertical';
>> events = ft_databrowser(cfg,trl);
>>
>>
>> the input is raw data with 15 channels and 15 trials
>> detected   0 a artifacts
>> detected   0 b artifacts
>> ??? Error using ==> plus
>> Matrix dimensions must agree.
>>
>> Error in ==> ft_databrowser at 745
>>   hsel = [1 2 3] + (opt.ftsel-1) .*3;
>>
>> ??? Reference to non-existent field 'trlvis'.
>>
>> Error in ==> ft_databrowser>redraw_cb at 1639
>> begsample = opt.trlvis(opt.trlop, 1);
>>
>> Error in ==> ft_databrowser>winresize_cb at 2250
>> redraw_cb(h,eventdata);
>>
>> ??? Error while evaluating figure ResizeFcn
>>
>>
>>
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free.
>> www.avast.com
>> <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail>
>> <#m_3369054593448223812_m_-281810346689554922_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
>>
>> _______________________________________________
>> fieldtrip mailing list
>> fieldtrip at donders.ru.nl
>> https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>>
>
>
> _______________________________________________
> fieldtrip mailing list
> fieldtrip at donders.ru.nl
> https://mailman.science.ru.nl/mailman/listinfo/fieldtrip
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20170407/f0e5f87a/attachment-0002.html>