Hi list,
randomise is throwing an error at me after stalling at permutation 2. "Warning: tfce has detected a large number of integral steps. This operation may require a great deal of time to complete."
It seems tfce is at fault somehow, as it runs fine unless I use --T2 or -T options. Same error on fsl 4.1.6, 4.1.5, 4.1.1.
Tips greatly appreciated!
Cheers
Inge
_______________________________
randomise options: -i all_FA_diff_skeletonised.nii.gz -m mean_FA_skeleton_mask -d fsgd/diff/design.mat -t fsgd/diff/design.con -n 10000 -x --T2 -o res_diff/FA -n 40 -o res_diff/FA_SEED250 --seed=250
Seeding with 250
Loading Data:
Data loaded
1.14956e+11 permutations required for exhaustive test of t-test 1
Doing 40 random permutations
Starting permutation 1 (Unpermuted data)
Starting permutation 2
Warning: tfce has detected a large number of integral steps. This operation may require a great deal of time to complete.
___________________________________________
WIth --debug I get this output:
randomise -i all_FA_diff_skeletonised.nii.gz -o res_diff/FA -m mean_FA_skeleton_mask -d fsgd/diff/design.mat -t fsgd/diff/design.con -n 10000 --T2 -x -V --debug
randomise options: -i all_FA_diff_skeletonised.nii.gz -o res_diff/FA -m mean_FA_skeleton_mask -d fsgd/diff/design.mat -t fsgd/diff/design.con -n 10000 --T2 -x -V --debug
Loading Data: ********************************************
Data loaded
Confounds detected.
Subject | Design | group | label
1.000000 1.363636 1.000000 1.000000
2.000000 1.363636 1.000000 1.000000
3.000000 1.363636 1.000000 1.000000
4.000000 1.363636 1.000000 1.000000
5.000000 1.363636 1.000000 1.000000
6.000000 1.363636 1.000000 1.000000
7.000000 1.363636 1.000000 1.000000
8.000000 1.363636 1.000000 1.000000
9.000000 1.363636 1.000000 1.000000
10.000000 1.363636 1.000000 1.000000
11.000000 1.363636 1.000000 1.000000
12.000000 1.363636 1.000000 1.000000
13.000000 1.363636 1.000000 1.000000
14.000000 1.363636 1.000000 1.000000
15.000000 -0.636364 1.000000 2.000000
16.000000 -0.636364 1.000000 2.000000
17.000000 -0.636364 1.000000 2.000000
18.000000 -0.636364 1.000000 2.000000
19.000000 -0.636364 1.000000 2.000000
20.000000 -0.636364 1.000000 2.000000
21.000000 -0.636364 1.000000 2.000000
22.000000 -0.636364 1.000000 2.000000
23.000000 -0.636364 1.000000 2.000000
24.000000 -0.636364 1.000000 2.000000
25.000000 -0.636364 1.000000 2.000000
26.000000 -0.636364 1.000000 2.000000
27.000000 -0.636364 1.000000 2.000000
28.000000 -0.636364 1.000000 2.000000
29.000000 -0.636364 1.000000 2.000000
30.000000 -0.636364 1.000000 2.000000
31.000000 -0.636364 1.000000 2.000000
32.000000 -0.636364 1.000000 2.000000
33.000000 -0.636364 1.000000 2.000000
34.000000 -0.636364 1.000000 2.000000
35.000000 -0.636364 1.000000 2.000000
36.000000 -0.636364 1.000000 2.000000
37.000000 -0.636364 1.000000 2.000000
38.000000 -0.636364 1.000000 2.000000
39.000000 -0.636364 1.000000 2.000000
40.000000 -0.636364 1.000000 2.000000
41.000000 -0.636364 1.000000 2.000000
42.000000 -0.636364 1.000000 2.000000
43.000000 -0.636364 1.000000 2.000000
44.000000 -0.636364 1.000000 2.000000
1.14956e+11 permutations required for exhaustive test of t-test 1
Input Design:
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
0.500000 -0.707107 0.136364
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
-0.500000 -0.707107 -0.863636
Input Contrast:
1.000000 0.000000 0.000000
Contrast rank: 1
Dof: 42 original dof: 42
Doing 10000 random permutations
Starting permutation 1 (Unpermuted data)
statistic Maximum: 2.16111e-15
Starting permutation 2
statistic Maximum: 4.00092
and hangs..
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