Hi - the problem is that your [1 1] contrast is 'illegal'; this gives
you an 'effective EV' of all 1s, which permutation testing can't work
on - in this case you need to run this question separately, using no
design matrices, and just the -1 option.
Cheers.
On 7 Nov 2008, at 17:18, Suh Lee wrote:
> Certainly,
>
> Here they are:
>
> allfiles.nii.gz.mat:
>
> /NumWaves 2
> /NumPoints 8
> /PPheights 1 1
> /Matrix
> 1 0
> 1 0
> 1 0
> 1 0
> 0 1
> 0 1
> 0 1
> 0 1
>
>
> allfiles.nii.gz.con:
>
> /NumWaves 2
> /NumContrasts 3
> /PPheights 1 1
> /Matrix
> 1 1
> 1 0
> 0 1
>
> My images are in analyze format. I tried randomise with nifti
> images but I get the same
> error message. Do the images have to be in nifti?
>
> Thank you,
> Suh
>
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Stephen M. Smith, Professor of Biomedical Engineering
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