Dear Ethan,
It sounds like a problem with your Matlab installation. Something is
missing from your signal processing toolbox.
Best,
Vladimir
On 22 Dec 2009, at 10:10, Ethan Weed wrote:
> Dear SPM list,
>
> I am new to spm eeg, and I'm having trouble implementing a few of
> the features that require the signal processing toolbox:
> downsampling and filtering. When I try to downsample, I get the
> following error message in Matlab:
>
>
>
> >> spm_eeg_downsample
>
> SPM8: spm_eeg_downsample (v3082) 10:03:29 -
> 22/12/2009
> ==============================
> ==========================================
> ??? Undefined function or method 'upfirdnmex' for input arguments of
> type 'double'.
>
> Error in ==> upfirdn at 86
> Y = upfirdnmex(x,h,p,q,Lx,Lh,hCols,nChans);
>
> Error in ==> resample at 106
> y = upfirdn(x,h,p,q);
>
> Error in ==> spm_eeg_downsample at 72
> d2 = resample(d', P, Q)';
>
>
> I have searched the archives, but haven't found any reference to
> this error. Hope someone else has encountered this problem, and
> knows what to do about it!
>
> Thanks,
> Ethan
|