Dear all,
I am getting an error when trying to run tckstats on global tractography.
tckstats: [ERROR] error converting string ""
Is this a “real” error or a bug? I was digging into the headers of the global vs iFOD2 .tck files and they look very different:
iFOD2:
***********************************
Tracks file: "../whole_brain/100M.tck"
act: /path/to/folder/5TT.mif
backtrack: 1
count: 100000000
crop_at_gmwmi: 1
downsample_factor: 3
fod_power: 0.25
init_threshold: 0.0599999987
lmax: 8
max_angle: 45
max_dist: 250
max_num_attempts: 10000000000
max_num_tracks: 100000000
max_seed_attempts: 50
max_trials: 1000
method: iFOD2
min_dist: 2.5
mrtrix_version: 0.3.15-32-g01c8f960
output_step_size: 0.625
rk4: 0
samples_per_step: 4
seed_dynamic: /path/to/folder/WM_FODs.mif
sh_precomputed: 1
source: /path/to/folder/WM_FODs.mif
step_size: 0.625
stop_on_all_include: 0
threshold: 0.06
timestamp: 1500552604.6361789703
total_count: 112897005
unidirectional: 0
ROI: seed WM_FODs.mif
Global:
***********************************
Tracks file: "tracks.tck"
count: 266400
mrtrix_version: 3.0_RC1-189-gbe66a20a
timestamp: 1500639794.3952083588
total_count: 266400
Comments: global tractography
segment length = 1.000000
segment weight = 0.100000
connection potential = 0.500000
particle potential = 0.050000
no. iterations = 1000000000
T0 = 0.100000
T1 = 0.001000
Does tckstats need some of the header info found in iFOD2 header in order to compute the stats that is not available in the global header?
Cheers,
Claude