Hi Stam,
i executed bedpostx_datacheck on the bedpostx directory and the following is the log on the console
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/Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/data
data_type FLOAT64
dim1 180
dim2 180
dim3 75
dim4 31
datatype 64
pixdim1 1.3329999447
pixdim2 1.3329999447
pixdim3 2.0000000000
pixdim4 1.0000000000
cal_max 0.0000
cal_min 0.0000
file_type NIFTI-1+
/Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/nodif_brain_mask
data_type INT16
dim1 180
dim2 180
dim3 75
dim4 1
datatype 4
pixdim1 1.3329999447
pixdim2 1.3329999447
pixdim3 2.0000000000
pixdim4 1.0000000000
cal_max 0.0000
cal_min 0.0000
file_type NIFTI-1+
num lines in /Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/bvals
31
num words in /Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/bvals
31
num lines in /Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/bvecs
31
num words in /Space/jay/DTI_PWD_baseline_JA_bedpostX/d103/bvecs
93
===================================
when i created bedpostx directory, i used whole brain binary mask
bedpostx <indir> [-n 2] [-w 1] [-b 1000]
but later when i run qboot, i used probability mask(Right_Accumbens) extracted from the standard H-O atlas
qboot -k data.nii.gz -m Right_Accumbens.nii.gz -r bvecs -b bvals
BW
Jay
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