I tried to set up the design with Glm_gui in the TBSS step5 (voxelwise statistics on the skeletonised FA data).
I have two groups and I want to analyze with two sample T test.
Group A includes 22 subjects and GroupB includes 21subjects.
--------------In Glm_gui---------------
Non-time series design
Number of main EVs 2
Group EV1 Ev2
groupA groupB
input 1 1 0 1
input 2 1 0 1
•
•
input 22 1 0 1
input 23 2 1 0
input 24 2 1 0
•
•
input 43 2 1 0
*CONTRAST
C1 groupA>goupB 1 -1
C2 groupB>groupA -1 1
-----------------------------------
After processing, I typed "randomise -i all_FA_skeletonised -o tbss -m mean_FA_skeleton_mask -d design.mat -t design.con -n 500 --T2 -V".
Then following error appeared.
Loading Data: **************************************************************************************
Data loaded
ERROR: Program failed
An exception has been thrown
Logic error:- detected by Newmat: incompatible dimensions
MatrixType = Rect # Rows = 43; # Cols = 43
MatrixType = Rect # Rows = 86; # Cols = 110634
Trace: MatrixMult.
Exiting
Please tell me the solution
Thank you for your kindness. Chihiro
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