I have fdr correction for sig.mgh obtained by mri_glmfit, but the corrected graphs are all 0. Why is this, the instructions and the running results are as follows:
mri_fdr --fdr .05 --i lh2.gender_age.glmdir/group2/sig.mgh lh2.gender_age.glmdir/mask.mgh 2.mgh
$Id: mri_fdr.c,v 1.2 2016/01/07 22:23:57 greve Exp $
cwd /usr/local/freesurfer/subjects
cmdline mri_fdr --fdr .05 --i lh2.gender_age.glmdir/group2/sig.mgh lh2.gender_age.glmdir/mask.mgh 2.mgh
sysname Linux
hostname xiaorn
machine x86_64
user xiaorn
fdr 0.050000
ninputs 1
MRIfdr2vwth: np = 149953, nv = 163842
MRIfdr2vwth: vwth = 0.000003, log10(vwhth) = 5.583609
voxel-wise-threshold 5.5836093010
Writing to 2.mgh
mri_fdr done