Hi Rajkumar,
it looks fine.
Cheers,
Gwenaelle
--- En date de : Mer 30.4.08, Rajkumar <[log in to unmask]> a écrit :
> De: Rajkumar <[log in to unmask]>
> Objet: Re: [FSL] TBSS
> À: [log in to unmask]
> Date: Mercredi 30 Avril 2008, 16h45
> Hi,
> Thanks for your reply. I looked at some of your past
> threads and created
> the design matrix and contrast files. We are comparing two
> groups with age
> as a covariate. The covariate values in the EV3 (third
> column) are demeaned.
> Kindly check whether my design files are correct. Thanks.
>
>
> Contrast file:
>
> /ContrastName1 group mean
> /ContrastName2
> /NumWaves 3
> /NumContrasts 2
> /PPheights 1.569813e+00 1.569813e+00
> /RequiredEffect 4.620 4.620
>
> /Matrix
> 1.000000e+00 -1.000000e+00 0.000000e+00
> -1.000000e+00 1.000000e+00 0.000000e+00
>
> Matrix file:
>
> /NumWaves 3
> /NumPoints 23
> /PPheights 1.000000e+00 1.000000e+00 1.000000e+01
>
> /Matrix
> 1.000000e+00 0.000000e+00 3.000000e-01
> 1.000000e+00 0.000000e+00 6.000000e-01
> 1.000000e+00 0.000000e+00 -2.300000e+00
> 1.000000e+00 0.000000e+00 4.700000e+00
> 1.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 4.500000e+00
> 1.000000e+00 0.000000e+00 4.000000e+00
> 1.000000e+00 0.000000e+00 2.700000e+00
> 1.000000e+00 0.000000e+00 1.700000e+00
> 1.000000e+00 0.000000e+00 2.700000e+00
> 1.000000e+00 0.000000e+00 3.900000e+00
> 0.000000e+00 1.000000e+00 -4.000000e+00
> 0.000000e+00 1.000000e+00 3.000000e+00
> 0.000000e+00 1.000000e+00 -1.300000e+00
> 0.000000e+00 1.000000e+00 -5.300000e+00
> 0.000000e+00 1.000000e+00 6.000000e-01
> 0.000000e+00 1.000000e+00 -2.000000e-01
> 0.000000e+00 1.000000e+00 -2.300000e+00
> 0.000000e+00 1.000000e+00 -3.800000e+00
> 0.000000e+00 1.000000e+00 -2.000000e+00
> 0.000000e+00 1.000000e+00 -4.200000e+00
> 0.000000e+00 1.000000e+00 -4.700000e+00
> 0.000000e+00 1.000000e+00 1.200000e+00
>
>
> -Rajkumar
> Wayne State University
> Detroit.
>
> -----Original Message-----
> From: FSL - FMRIB's Software Library
> [mailto:[log in to unmask]] On Behalf
> Of Steve Smith
> Sent: Wednesday, April 23, 2008 4:24 PM
> To: [log in to unmask]
> Subject: Re: [FSL] TBSS
>
> Hi - please see the TBSS and randomise manual!
> Cheers.
>
>
> On 22 Apr 2008, at 16:58, Rajkumar wrote:
>
> > Hi,
> > We are trying to create design matrix and
> contrast files
> > for our TBSS analysis which involved 18 study subjects
> and 13
> > control subjects. Kindly suggest how we can include
> age of the
> > individual subjects as a covariate in the final group
> analysis.
> > Thanks.
> > -Rajkumar
> >
> >
>
>
> ---------------------------------------------------------------------------
> 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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