read_var

@staticmethodSingleCell.read_var(h5ad_file, *, columns=None, num_threads=-1)

Load just var from an .h5ad file as a polars DataFrame.

Parameters:

• h5ad_file: str | Path

  an .h5ad filename

• columns: str | Iterable[str] | None

  the column(s) of var to load; if None, load all columns

• num_threads: int

  the number of threads to use when reading. By default (num_threads=-1), use all available cores, as determined by os.cpu_count().

Returns:

A polars DataFrame of the data in var.

Return type:

DataFrame