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sccn / BCILAB

MATLAB Toolbox for Brain-Computer Interface Research
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Trouble setting markers correctly #39

Open Lars-Nun opened 6 years ago

Lars-Nun commented 6 years ago

Hello,

I am getting started on BCILAB so I'm currently following through the practicum slides. I am using the current version (devel branch) which looks slighty different to the one used in the practicum. I don't understand how to set the target markers correctly. In the practicum the field appears under 'configure approach' while in my version I can only make changes to them under 'calibrate model'. I tried naming them as {'StimulusCode_2','StimulusCode_3'} as described on the website: https://sccn.ucsd.edu/wiki/BCILAB as well as {'S 1' 'S 2'} as described in the practicum. In any case I get the following error:

WARNING: the data set did not contain matching target markers. Computation failed; error trace: X and V must be of the same length. occurred in: reshapeAndSortXandV: 416 interp1: 91 design_fir: 51 flt_fir: 206 hlp_wrapresults: 52 exp_eval: 131 exp_beginfun: 428 set_makepos: 61 hlp_wrapresults: 52 exp_eval: 131 @(f,a,framef2)feval(f,a{:}): 0 hlp_scope: 53 exp_eval_optimized: 52 ParadigmDataflowSimplified.calibrate_simple: 588 ParadigmBaseSimplified.calibrate: 184 @(varargin)instance.calibrate(varargin{:}): 0 @(trainset,varargin)utl_complete_model(args.calibrate_func('collection',{trainset},varargin{:}),args.predict_func): 903 utl_searchmodel: 183 hlp_getresult: 47 par_beginschedule: 166 run_computation: 932 @(f,a,framef1)feval(f,a{:}): 0 hlp_scope: 53 bci_train: 856 pushbutton1_Callback: 156 gui_mainfcn: 95 gui_calibratemodel: 30 @(hObject,eventdata)gui_calibratemodel('pushbutton1_Callback',hObject,eventdata,guidata(hObject)): 0 Here are two screenshots of both my windows: screenshot calibrate screenshot configure approach

Is the [7 30] as the frequency specification of the filter correct? I assume it's the same thing as 'frequency domain selection' in the practicum?

I've been trying for a while now to fix this but I am not a programmer and new to this. The 'help' function didn't get me any further. Does anybody have an idea? Any help would be greatly appreciated!

JimiJam18 commented 6 years ago

Hello,

I am currently having the same problem. Did you happen to figure it out? I cannot find information anywhere. I would greatly appreciate your help!