转自：https://scanpy.readthedocs.io/en/stable/
1.scanpy.pp.normalize_total
scanpy.pp.normalize_total(adata, target_sum=None, exclude_highly_expressed=False,
max_fraction=0.05, key_added=None, layer=None, layers=None, layer_norm=None, inplace=True, copy=False)
- target_sum默认为None，经过归一化后，每个cell的total count都是归一化前的中值median。