Hi Yufeng, it cannot handle only a single run. You must have both polar 
and eccen. You can "fool" it by copying your polar run into another run 
and calling it eccen.
doug
ps. Please remember to send email to the list and not to me personally. 
Thanks!



On 4/16/13 11:02 AM, yuf...@mail.ustc.edu.cn wrote:
> Hi Doug,
>   Thank you for your patient. I am doing retinotopy analysis by using 
> freesurfer 5.1 with the help of the webside 
> http://surfer.nmr.mgh.harvard.edu/fswiki/FsFastIndividualRetinotopyAnalysis . 
> And my problem is as followed while doing
> selxavg3-sess -s Sess01 -a fmcpr.sm5.self.lh.nii.gz
> My mmkanalysis-sess code is as followed:
> mmkanalysis-sess -fsd bold -stc odd -surface self lh -fwhm 5 -retinotopy 32 
> -paradigm rtopy.par -analysis fmcpr.sm5.self.lh.nii.gz -TR 2
>
> Error information
> Saving X matrix to 
> /usr/local/freesurfer/stable5/retinotopy_002/Sess01/bold/fmcpr.odd.sm5.fsaverage.lh.nii.gz/Xtmp.mat
> ??? Error using ==> svd
> Input to SVD must not contain NaN or Inf.
>
> Error in ==> cond at 40
>     s = svd(A);
>
> Error in ==> fast_selxavg3 at 254
>    XCond = cond(XtX);
>   
>>> ------------------------------------------
> ERROR: fast_selxavg3() failed\n
>   
>   I just have one run and the rtopy.par is
> stimtype polar
>
> direction neg
>   
> I attach the analysis.info and Xtmp.mat on the email. Thanks very much.
>                                                                               
>                                        Yours Yufeng
>                                                                               
>                                             

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