Hello,
It looks like all your design columns have non-zero means ( 0.24, 0.31, 0.45 respectively ) which is generating the warning message..
Many Regards
Natthew
> I have 3 groups in a feat GLM that I am running TFCE using randomise. My 4d nifti file is the cope from each subjects fixed effects mean.
>
> My understanding is that I need to demean my data. However I get the error message "Warning: You have demeaned your data, but at least one design column has non-zero mean" with the design contrast and matrix below which makes me think there is an error in it although I can't figure out where.
>
> I used a binary IFG mask with the randomise command here
>
> randomise -i randomise_input.nii.gz -o cope -d design.mat -t design.con -m final_bin.nii.gz -n 10000 -D -T
>
>
> /ContrastName1 "Con > Scz"
> /ContrastName2 "Scz > Con"
> /ContrastName3 "Con > Rel"
> /ContrastName4 "Rel > Con"
> /ContrastName5 "Rel > Scz"
> /ContrastName6 "Scz > Rel"
> /ContrastName7 "Con > Rel,Scz"
> /ContrastName8 "Con < Rel,Scz"
> /ContrastName9 "Rel>Con,Scz"
> /ContrastName10 "Rel<Con,Scz"
> /ContrastName11 "Scz>Con,Rel"
> /ContrastName12 "Scz<Con,Rel"
> /NumWaves 3
> /NumContrasts 12
> /PPheights 1.000000e+00 1.000000e+00 1.000000e+00 1.000000e+00 1.000000e+00 1.000000e+00 5.309068e-01 5.309068e-01 5.506899e-01 5.506899e-01 5.209657e-01 5.209657e-01
> /RequiredEffect 1.006 1.006 0.923 0.923 1.076 1.076 0.851 0.851 0.955 0.955 0.973 0.973
>
> /Matrix
> -1.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 -1.000000e+00
> 0.000000e+00 -1.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 -1.000000e+00
> -1.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 -1.000000e+00 0.000000e+00
> -1.000000e+00 -1.000000e+00 2.000000e+00
> 1.000000e+00 1.000000e+00 -2.000000e+00
> -1.000000e+00 2.000000e+00 -1.000000e+00
> 1.000000e+00 -2.000000e+00 1.000000e+00
> 2.000000e+00 -1.000000e+00 -1.000000e+00
> -2.000000e+00 1.000000e+00 1.000000e+00
>
>
> /NumWaves 3
> /NumPoints 92
> /PPheights 1.000000e+00 1.000000e+00 1.000000e+00
>
> /Matrix
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 0.000000e+00 1.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 0.000000e+00 1.000000e+00 0.000000e+00
> 1.000000e+00 0.000000e+00 0.000000e+00
>
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