Dear FSL list,
I'm using PALM software to perform permutation test in two different functional networks (IC001 and IC002) with voxelwise EVs.
I used two design matrices (1 for IC001 and 1 for IC002, which are identical): 20 rows (n^ of subjects; 10 for group) and 4 columns (1^ raw: group 1; 2^ raw: group 2; 3^ raw: motion; 4^ raw: voxelwise EV - filled up with 1s)
I run the following (I'm using Matlab R2014b):
>> palm -i IC001.nii -i IC002.nii -d Design_IC001.mat -d Design_IC001.mat -t Design_IC001.con -t Design_IC002.con -m MNI152_mask.nii -evperdat IC001_GM.nii 4 1 -evperdat IC002_GM.nii 4 2 -corrmod -corrcon -n 10 -accel tail -nouncorrected
The following message is error message:
----------------------------------------------------------------------------------------
Warning: Matrix is singular to working precision.
> In palm_core>fastt3d at 2757
In palm_core at 1469
In palm at 81
Saving file: palm_vox_tstat_m1_d1_c1
Error using palm_gcdf (/palm_gcdf.m:63)
X must be in the interval [0,1].
Error in palm_gtoz (/palm_gtoz.m:80->palm_gcdf)
Error in palm_core (/palm_core.m:1599->palm_gtoz)
Error in palm (/palm.m:81->palm_core)
----------------------------------------------------------------------------------------
Any suggestions?
Thank you
--
Lorenzo Pini, PhD
tel: 049 821 4401
Executive Function Lab
Dipartimento di Neuroscienze
Università degli Studi di Padova
