2019年8月28日(水) 8:57 Rok Mihevc <rok.mih...@gmail.com>: > > On Wed, Aug 28, 2019 at 1:18 AM Wes McKinney <wesmck...@gmail.com> wrote: > > > null/NA. But, as far as I'm aware, this component of pandas is > > relatively unique and was never intended as an alternatives to sparse > > matrix libraries. > > > > Another example is > https://sparse.pydata.org/en/latest/generated/sparse.SparseArray.html?highlight=fill%20value#sparse.SparseArray.fill_value, > but it might have been influenced by Pandas.
pydata/sparse's COO tensor also has fill_value property, and it raises a ValueError in to_scipy_sparse method when the tensor has a non-zero fill value. So we should support fill value someday, I think. > I'm ok with dropping this for now. Yes, we can advance without it, and support it later. And, I think supporting fill value is not difficult. -- Kenta Murata
