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If the spm_realign function is called so that output arguments are to be 
assigned, then it does not write any rp_*.txt file.  If you want such a file, 
then try pasting the following into MATLAB:

V = spm_vol(spm_select(Inf,'image'));
fname = [spm_str_manip(prepend(V(1).fname,'rp_'),'s') '.txt'];
n = length(V);
Q = zeros(n,6);
for j=1:n,
        qq     = spm_imatrix(V(j).mat/V(1).mat);
        Q(j,:) = qq(1:6);
end;
save(fname,'Q','-ascii');


Best regards,
-John


On Thursday 12 June 2008 19:30, Ben Yerys wrote:
> Hi SPMers:
>
> I would like to use an individual realignment parameters as regressors in
> my individual fMRI maps, however when I am setting up the batch script I do
> not find the rp_*.txt file in my subject's directory.  This was not the
> case in the earlier version of SPM5 that I was using.  Is this a new bug?
> Or do others have codes to work around this issue?
>
> Thanks,
> Ben
>
> ---------
> Benjamin E. Yerys, Ph.D.
> T-32 IDDRC Post-Doctoral Fellow
> Children's National Medical Center