If you re-run Stats & Post-stats rather than everything including pre-
stats, you should get the same stats and post-stats results. They may
look slightly different purely because the underlying example func
image has now been smoothed so looks more smooth.
On 1 Feb 2008, at 18:08, Carlos Faraco wrote:
> So, if I run the stats & post-stats again, is it as if I am running
> actual
> statistics on data that has already had statistics run on it (this
> would
> explain the lack of supra-threshold voxels)?. The reason I ran stats
> &
> post-stats vs. just post-stats is because I had specified my EVs
> incorrectly, and thought I could just skip the pre-stats part.
> However, I
> guess this is incorrect, as I just compared the rendered-zstat for
> EV -
> Baseline for a re-run of stats & post-stats to an analysis done from
> the
> beginning and noticed the results were quite different.
>
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Stephen M. Smith, Professor of Biomedical Engineering
Associate Director, Oxford University FMRIB Centre
FMRIB, JR Hospital, Headington, Oxford OX3 9DU, UK
+44 (0) 1865 222726 (fax 222717)
[log in to unmask] http://www.fmrib.ox.ac.uk/~steve
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