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Thank you...
Re question 2, the shell script tbss_2_reg can take the command line flag, -f target.hdr (user chosen target) to do N comparisons instead of NxN. But I think you end up with a skeleton with N-1 timepoints.
-Marc

On 5/24/07, Steve Smith <[log in to unmask]> wrote:
On 24 May 2007, at 11:01, Marc Dubin wrote:

> Two other quick questions...
>
> 1. I would look at tbss_tstat2 in this case and tbss_tstat1 would
> be unimportant?

It depends on your contrasts. If contrast 2 is asking about
correlation with EV2 then yes that's the one of interest.

> 2. If I passed a -f flag for pre-chosen target to tbss_2_reg then
> the target will not be included in all_FA_skeleton (reducing my n
> by 1), right?

Sorry - I can't tell what you're asking - tbss_2_reg doesn't take any
arguments?

Steve.


>
> Best,
> Marc
>
> On 5/23/07, Steve Smith < [log in to unmask]> wrote:Hi - yes,
> setup the model with Glm (or Glm_gui) and make the first EV
> constant and the second the demeaned subject scores (see the FEAT
> manual, higher-level example setups for exactly this example).
>
> Cheers.
>
>
> On 23 May 2007, at 21:53, Marc Dubin wrote:
>
> > Hello all,
> >
> > I am new to TBSS.
> >
> > I have a 4D all_FA_skeletonised file
> > containing 10 subjects (time points) and want to see
> > while voxels are linearly correlated with performnce on
> > a cognitive test (with integer score). Does anyone know
> > which function to use?
> >
> > Thanks!
> > Marc
>
>
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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)
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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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---



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646 831 8886
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