Function var

dask/array/reductions.py:640–660

(a, axis=None, dtype=None, keepdims=False, ddof=0, split_every=None, out=None)

@derived_from(np)
def var(a, axis=None, dtype=None, keepdims=False, ddof=0, split_every=None, out=None):
    if dtype is not None:
        dt = dtype
    else:
        dt = getattr(np.var(np.ones(shape=(1,), dtype=a.dtype)), "dtype", object)

    implicit_complex_dtype = dtype is None and np.iscomplexobj(a)

    return reduction(
        a,
        partial(moment_chunk, implicit_complex_dtype=implicit_complex_dtype),
        partial(moment_agg, ddof=ddof),
        axis=axis,
        keepdims=keepdims,
        dtype=dt,
        split_every=split_every,
        combine=moment_combine,
        name="var",
        out=out,
        concatenate=False,
    )


@derived_from(np)