fillna(self: 'SparseArrayT', value=None, method: 'FillnaOptions | None' = None, limit: 'int | None' = None) -> 'SparseArrayT'
When :None:None:`value` is specified, the result's fill_value
depends on self.fill_value
. The goal is to maintain low-memory use.
If self.fill_value
is NA, the result dtype will be SparseDtype(self.dtype, fill_value=value)
. This will preserve amount of memory used before and after filling.
When self.fill_value
is not NA, the result dtype will be self.dtype
. Again, this preserves the amount of memory used.
Using 'method' will result in high memory use, as all :None:None:`fill_value` methods will be converted to an in-memory ndarray
Fill missing values with :None:None:`value`.
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