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Hi Dipti,

I don't think this is what's causing the problem, but you should have 20 "1" in your first EV, not two, and 20 in your EV2, not 38. Covariate should also be demeaned.

What's the result of an fslinfo on your GM_mod_merg?

Cheers,
Gwenaelle


De: dipti talreja <[log in to unmask]>
Objet: [FSL] Fwd: [FSL] Re : [FSL] FSLVBM Error while processing
À: [log in to unmask]
Date: Vendredi 28 janvier 2011, 16h54

Dear Gwenaelle, 

This is how my design matrix looks like... I have a covariate age in the 3 column


/NumWaves       3
/NumPoints      40
/PPheights              1.000000e+00    1.000000e+00    5.300000e+00



/Matrix
1.000000e+00    0.000000e+00    2.500000e+00
1.000000e+00    0.000000e+00    1.300000e+00
0.000000e+00    1.000000e+00    1.600000e+00
0.000000e+00    1.000000e+00    3.000000e+00
0.000000e+00    1.000000e+00    1.100000e+00


0.000000e+00    1.000000e+00    1.000000e+00
0.000000e+00    1.000000e+00    1.100000e+00
0.000000e+00    1.000000e+00    4.000000e+00
0.000000e+00    1.000000e+00    1.600000e+00
0.000000e+00    1.000000e+00    1.100000e+00


0.000000e+00    1.000000e+00    8.000000e-01
0.000000e+00    1.000000e+00    1.100000e+00
0.000000e+00    1.000000e+00    1.800000e+00
0.000000e+00    1.000000e+00    1.900000e+00
0.000000e+00    1.000000e+00    2.700000e+00


0.000000e+00    1.000000e+00    1.400000e+00
0.000000e+00    1.000000e+00    1.800000e+00
0.000000e+00    1.000000e+00    1.100000e+00
0.000000e+00    1.000000e+00    6.000000e-01
0.000000e+00    1.000000e+00    8.000000e-01


0.000000e+00    1.000000e+00    1.500000e+00
0.000000e+00    1.000000e+00    1.800000e+00
0.000000e+00    1.000000e+00    2.000000e+00
0.000000e+00    1.000000e+00    1.700000e+00
0.000000e+00    1.000000e+00    1.700000e+00


0.000000e+00    1.000000e+00    2.000000e+00
0.000000e+00    1.000000e+00    2.000000e+00
0.000000e+00    1.000000e+00    1.900000e+00
0.000000e+00    1.000000e+00    1.800000e+00
0.000000e+00    1.000000e+00    2.000000e+00


0.000000e+00    1.000000e+00    1.200000e+00
0.000000e+00    1.000000e+00    3.000000e+00
0.000000e+00    1.000000e+00    3.100000e+00
0.000000e+00    1.000000e+00    4.000000e+00
0.000000e+00    1.000000e+00    2.000000e+00


0.000000e+00    1.000000e+00    3.000000e+00
0.000000e+00    1.000000e+00    5.300000e+00
0.000000e+00    1.000000e+00    1.800000e+00
0.000000e+00    1.000000e+00    2.300000e+00
0.000000e+00    1.000000e+00    5.200000e+00



Thanks 

Dipti

On Fri, Jan 28, 2011 at 10:14 AM, Gwenaëlle DOUAUD <[log in to unmask]> wrote:


Hi Dipti,



could you please copy/paste the content of your design.mat please?



Cheers,

Gwenaelle



> De: Dipti J.Talreja <[log in to unmask]>

> Objet: [FSL] FSLVBM Error while processing

> À: [log in to unmask]

> Date: Vendredi 28 janvier 2011, 14h47

> Hey All

>

> I am trying to process a data set of 20 control and 20

> patients with a co-variate age in fslvbm. At the

> fslvbm_3_proc step an error is generated as fslvbm3b.e32049

> which is

>

> "An exception has been thrown

> Logic error:- detected by Newmat: incompatible dimensions

>

> MatrixType = Rect   # Rows = 40; # Cols =

> 40

> MatrixType = Rect   # Rows = 39; # Cols =

> 251462

> Trace: MatrixMult.

>

>

> Exiting

> ERROR: Program failed"

>

> I am not sure what could be wrong to cause the problem.

>

> Can anyone please guide me ..

>

> Thanks

> Dipti









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Gwenaëlle Douaud, PhD



FMRIB Centre, University of Oxford

John Radcliffe Hospital, Headington OX3 9DU  Oxford  UK



Tel: +44 (0) 1865 222 523  Fax: +44 (0) 1865 222 717



www.fmrib.ox.ac.uk/~douaud



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