code: def dset_grids_equal(dsets):
      '''Tests if each dataset in the ``list`` ``dsets`` has the same number of voxels and voxel-widths'''
      infos = [dset_info(dset) for dset in dsets]
      for i in xrange(3):
          if len(set([x.voxel_size[i] for x in infos]))>1 or len(set([x.voxel_dims[i] for x in infos]))>1:
              return False
      return Truf dset_grids_equal(dsets):
      '''Tests if each dataset in the ``list`` ``dsets`` has the same number of voxels and voxel-widths'''
      infos = [dset_info(dset) for dset in dsets]
      for i in xrange(3):
          if len(set([x.voxel_size[i] for x in infos]))>1 or len(set([x.voxel_dims[i] for x in infos]))>1:
              return False
      return True
docs: Tests if each dataset in the ``list`` ``dsets`` has the same number of voxels and voxel-widths