def setup_class(cls):
cls.dist_sz, cls.nvox, cls.nt, cls.nf = 16, 100, 10, 4
stat = np.random.randn(cls.nvox, cls.nt, cls.nf)
rankings = np.random.rand(cls.nvox, cls.nt, cls.nf)
max_dist = np.random.randn(cls.dist_sz, cls.nt, cls.nf)
min_dist = np.random.randn(cls.dist_sz, cls.nt, cls.nf)
vox = voxel_index_list((5,5,5))[:cls.nvox]
cls.s_res = TimeFreqSnPMResults(
stat, vox, rankings, max_dist, min_dist
)