[Homer-users] Error using ==> svd

[David Boas]

odds are that those 3 data files have data files of 0 or negative values 
in the d matrix

I suggest that you modify the d matrix in those files so that you 
replace the 0 or negative values with a very small positive number



On 7/18/14, 3:57 AM, nicolas niermann wrote:
> Good morning,
>
> I'm doing my PhD at the Sports University Cologne and use Homer2 for 
> data analysis.
>
> I transformed all my files into .nirs-files (allways did it the same 
> way) and processed them (by pressing the "run" button).
> 19 files worked and I got the HRF- 3 files constantly show the 
> following error signal:
>
>
> ??? Error using ==> svd
> Input to SVD must not contain NaN or Inf.
>
> Error in ==> enPCAFilter at 82
>         [V,St,foo] = svd(c);
>
> Error in ==> EasyNIRS_Process at 88
>         eval( fcall );
>
> Error in ==> EasyNIRS>runNIRSsignalProcess at 1022
> [procResult procInput err] = EasyNIRS_Process(hmr);
>
> Error in ==> EasyNIRS>popupmenuNIRSsignalProcess_Callback at 1435
> runNIRSsignalProcess(iGrp,iSubj,iRun,handles);
>
> Error in ==> gui_mainfcn at 96
>         feval(varargin{:});
>
> Error in ==> EasyNIRS at 43
>     gui_mainfcn(gui_State, varargin{:});
>
> Error in ==>
> @(hObject,eventdata)EasyNIRS('popupmenuNIRSsignalProcess_Callback',hObject,eventdata,guidata(hObject))
>
> ??? Error while evaluating uicontrol Callback
>
>
> I transformed them again, controlled all the data for NaN or Inf but 
> just can't find the error.
> Has someone an idea what the error could be or where to look for the 
> error in the .nirs-file??
>
> Best regards
> Nicolas Niermann
>
>
>
>
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