The error message occurs because the image file is smaller than what
is described in the header.
> Error using spm_sample_vol
> File too small.
It looks like you had problems generating the data you are now trying
to analyse.
Best regards,
-John
On 10 August 2012 21:08, Ian Carroll <[log in to unmask]> wrote:
> Hey SPM users,
>
> I'm currently trying to run a model estimation to analyze differences in
> gray matter volume. Previously I was having an issue with writing data. That
> issue has been resolved now, but unfortunately I've come across this error.
>
> SPM8: spm_spm (v4515) 13:48:46 - 10/08/2012
> ========================================================================
> Initialising parameters : ...done
> Plane 121/121, block 1/1 : ...done
> Temporal non-sphericity (over voxels) : ...ReML estimation
> ReML Iteration 1 : ...7.211585e-02 [+4.25]
>
>
> SPM8: spm_spm (v4515) 13:49:04 - 10/08/2012
> ========================================================================
> Initialising parameters : ...done
> Output images : ...initialised
> Plane 121/121, block 1/1 : ...done
> Spatial non-sphericity (over scans) : ...estimating derivativesFailed 'Model
> estimation'
> Error using spm_sample_vol
> File too small.
> In file
> "/Network/Servers/mri-xs.mri.psychiatry.wisc.edu/Users/icarroll/Documents/MATLAB/spm8/spm_est_smoothness.m"
> (v4136), function "spm_est_smoothness" at line 125.
> In file
> "/Network/Servers/mri-xs.mri.psychiatry.wisc.edu/Users/icarroll/Documents/MATLAB/spm8/spm_spm.m"
> (v4515), function "spm_spm" at line 935.
> In file
> "/Network/Servers/mri-xs.mri.psychiatry.wisc.edu/Users/icarroll/Documents/MATLAB/spm8/spm_spm.m"
> (v4515), function "spm_spm" at line 896.
> In file
> "/Network/Servers/mri-xs.mri.psychiatry.wisc.edu/Users/icarroll/Documents/MATLAB/spm8/config/spm_run_fmri_est.m"
> (v4403), function "spm_run_fmri_est" at line 33.
>
> I'm using the MNI normalized smwc files for my model estimation. Does this
> error mean something is wrong with these files? I'm able to view them all in
> SPM so I know they're not corrupt.
>
> Thanks again,
> Ian
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