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Dear Bruce， 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
yours yujunjie