estimate_rician_sigma.Rd
Preferred alias for estimate_sigma_rician
estimate_rician_sigma(vec, mask = NULL)
4D fMRI data as a numeric array or `neuroim2::NeuroVec`.
Optional 3D logical/0-1 mask (array or `NeuroVol`). If `NULL`, all voxels are used.
estimate_sigma_rician