Hello,
It looks like for your first contrast no voxels are significant - can you let me know the results of running
fslstats tstat1.nii.gz -r -R
?
Kind Regards
Matthew
--------------------------------
Dr Matthew Webster
FMRIB Centre
John Radcliffe Hospital
University of Oxford
> On 18 Apr 2018, at 05:19, Sungoku <[log in to unmask]> wrote:
>
> Dear FSL experts:
>
> I have 2 group of subjects to compare, one is controls and the other is patients.
> I merged all subjects nii data, patients first in the order, using fslmerge -t .
> Then, I create design.mat and design.con using Text2Vest. With EV1 for patient group, EV2 for control group ,EV3 for covariate need to remove.
>
> The design.mat is this:
> /NumWaves 3
> /NumPoints 36
> /Matrix
> 1 0 2141.25
> 1 0 14581.25
> 1 0 -27758.75
> 1 0 2522.25
> 1 0 -25247.75
> 1 0 -31483.75
> 1 0 -22558.75
> 1 0 10636.25
> 1 0 17171.25
> 1 0 2526.25
> 1 0 -5238.75
> 1 0 26846.25
> 1 0 14786.25
> 1 0 129666.25
> 1 0 -283.75
> 1 0 -522.75
> 1 0 -14333.75
> 1 0 16446.25
> 1 0 22125.25
> 1 0 -18903.75
> 1 0 -23613.75
> 1 0 -10723.75
> 1 0 1361.25
> 1 0 -8298.75
> 1 0 -25648.75
> 0 1 -12633.75
> 0 1 20090.25
> 0 1 8384.25
> 0 1 -27645.75
> 0 1 -11823.75
> 0 1 -23349.75
> 0 1 22811.25
> 0 1 12341.25
> 0 1 -1737.75
> 0 1 -15153.75
> 0 1 -17475.75
>
> and design.con is this:
> /NumWaves 3
> /NumPoints 2
> /Matrix
> 1 -1 0
> -1 1 0
>
> for EV3, I demeaned before input into design.mat.
>
> Now my problem is, randomise finished with no warning or error, by keep telling me this:
> Critical Value for: result_tfce_tstat1 is: 0
> And the output images always blank. The output files are tfce_corrp_tstat1.nii.gz, tfce_p_tstat1.nii.gz, tfce_tstat1.nii.gz.
> Only this one : tstat1.nii.gz is not blank.
>
> My randomise cmd is :
> randomise -i merged -o result -d design.mat -t design.con -T -R --uncorrp -m GreyMask.nii.gz
> I checked many times, read the wiki about randomise and GLM, but I really don't know where the problem is.
> Please, NEED some help!
>
> By the way, the same data using PALM integrated in DPABI_STAT_TOOL did not have this problem.
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