anndata.AnnData.obs_names_make_unique

AnnData.obs_names_make_unique(join='-')

Makes the index unique by appending a number string to each duplicate index element: ‘1’, ‘2’, etc.

If a tentative name created by the algorithm already exists in the index, it tries the next integer in the sequence.

The first occurrence of a non-unique value is ignored.

Parameters
join : strstr (default: '-')

The connecting string between name and integer.

Examples

>>> from anndata import AnnData
>>> adata = AnnData(np.ones((2, 3)), var=pd.DataFrame(index=["a", "a", "b"]))
>>> adata.var_names
Index(['a', 'a', 'b'], dtype='object')
>>> adata.var_names_make_unique()
>>> adata.var_names
Index(['a', 'a-1', 'b'], dtype='object')