from typing import Sequence
import pandas.api.types as pdt
import pandas as pd
import numpy as np
from visions.types.float import test_is_float
from visions.relations import IdentityRelation, InferenceRelation, TypeRelation
from visions.types import VisionsBaseType
from visions.utils.coercion import test_utils
def test_string_is_complex(series) -> bool:
coerced_series = test_utils.option_coercion_evaluator(to_complex)(series)
return coerced_series is not None and not test_is_float(series)
def to_complex(series: pd.Series) -> bool:
return series.apply(complex)
def _get_relations(cls) -> Sequence[TypeRelation]:
from visions.types import Generic, String
relations = [
IdentityRelation(cls, Generic),
InferenceRelation(
cls, String, relationship=test_string_is_complex, transformer=to_complex
),
]
return relations
[docs]class Complex(VisionsBaseType):
"""**Complex** implementation of :class:`visions.types.type.VisionsBaseType`.
Examples:
>>> import numpy as np
>>> x = pd.Series([np.complex(0, 0), np.complex(1, 2), np.complex(3, -1), np.nan])
>>> x in visions.Complex
True
"""
@classmethod
def get_relations(cls) -> Sequence[TypeRelation]:
return _get_relations(cls)
@classmethod
def contains_op(cls, series: pd.Series) -> bool:
return pdt.is_complex_dtype(series)