[Homer-users] Question about configuring .cfg file

[Venkata Naga Pradeep Ambati]

Dear HOMER Users,

Please take a look at my questions and help me resolve this issues. My raw data file from HITACHI ETG-4000 has around 5000 to 6000 data points in the time series. I converted it into .fNIRS format for further processing. However I am not able to configure the processing option file (*.cfg) or use the processing option files used for the examples.


At the moment I am trying to play with these *.cfg files provided in the sample files on HOMER 2 website before actually configuring them to process my data. I started by using the simplest *.cfg file from example 1 which only has band pass filters and OD to Conc conversion. Although I do not get any error messages when I use this file to process my data, I am also not seeing any processed data. When I click on OD and Conc, I see nothing in the data window. I see a similar response when I used .cfg file from example 5. There was no error message when I used this file as well.


I then used .cfg files from example 4 to see what it does to my data and I get the following error message in the command window.


??? 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 apologize for the long email. I'd appreciate any feedback you can give me. Before configuring these .cfg files I would like to see what the example files do to my data. For some reason they are not even filtering or giving me OD for my data files.

Thanks,

Sincerely,

V.N.Pradeep Ambati, PhD
Post-Doc, School of Health Physical Education and Recreation
Biomechanics Research Building
6160 University Drive
Omaha, NE 68182-0860

University of Nebraska at Omaha
Mob: 804-402-0415
email: vambati at unomaha.edu
coe.unomaha.edu/biomechanics<http://coe.unomaha.edu/biomechanics>
[cid:2AD8C849-75A3-43F5-9CEE-F033CF946A16 at brf.unomaha.edu]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.nmr.mgh.harvard.edu/pipermail/homer-users/attachments/20141205/0b2ae595/attachment.html