These are the files of contrast and matrix 



design.mat 


/NumWaves 2

/NumPoints 12

/PPheights 1.000000e+00 1.000000e+00


/Matrix

1.000000e+00 0.000000e+00

1.000000e+00 0.000000e+00

1.000000e+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 1.000000e+00

0.000000e+00 1.000000e+00

0.000000e+00 1.000000e+00

0.000000e+00 1.000000e+00

0.000000e+00 1.000000e+00

0.000000e+00 1.000000e+00



design.con 


/ContrastName1 CTRL>PAT 
/ContrastName2 PAT>CTRL 
/NumWaves 2
/NumContrasts 2
/PPheights 1.000000e+00 1.000000e+00
/RequiredEffect 5.042 5.042

/Matrix
1.000000e+00 -1.000000e+00 
-1.000000e+00 1.000000e+00



De: FSL - FMRIB's Software Library <[log in to unmask]> en nombre de Rosalia Dacosta Aguayo <[log in to unmask]>
Enviado: lunes, 8 de mayo de 2017 02:03 p. m.
Para: [log in to unmask]
Asunto: Re: [FSL] group analysis
 
Hi Gabbo,

It seems that something went wrong with your design. To see it, we need to see your design.mat and design.com.

Rosalia 

El 8 may. 2017 20:59, "Gabbo Ramírez García" <[log in to unmask]> escribió:

The problem is that the image resulting is a image with just a 0.99 value, in fact is a wstrange result for that reason I guess that something is wrong. 


 I want to do Two-Sample Unpaired T-test, because I have a control group and a patients group. for that reason I did used tha command line. 


I dont know if I am missing some step. 


RG




De: FSL - FMRIB's Software Library <[log in to unmask]> en nombre de Blazej Baczkowski <[log in to unmask]>
Enviado: lunes, 8 de mayo de 2017 01:44 p. m.
Para: [log in to unmask]
Asunto: Re: [FSL] group analysis
 
Hello

It is difficult to guess what your problem is based on your description. What type of error do you get?

It seems that you want to run a two sample t test. For this you need to specify .grp file -- information on exchangeability, which is missing in your command line. 

Best, Blazej 

On 8 May 2017 at 20:11, RGuser <[log in to unmask]> wrote:
Hello FSLuser

I am doing seed-analysis for functional resting state images. I get the main signal of some seeds and  correlate that signal with the global signal of the brain by Pearson correlation and the resulting image have p- values. I have two groups and now I want to compare the functional maps resulted after correlation signal seed - signal brain.

I used this line to do it but it did not work.

randomise -i 4dfuntionalmaps  -o result -d design.mat -t design.con -m mask.nii.gz -n 500 -T

If somebody can help me I will be thankful.