Source code for lightwood.helpers.numeric

from typing import Iterable


def is_nan_numeric(value: object) -> bool:
    """
    Determines if **value** might be `nan` or `inf` or some other numeric value (i.e. which can be cast as `float`) that is not actually a number.
    """  # noqa

    try:
        value = str(value)
        value = float(value)
    except Exception:
        return False

    try:
        if isinstance(value, float):
            a = int(value) # noqa
        isnan = False
    except Exception:
        isnan = True
    return isnan


def filter_nan_and_none(series: Iterable) -> list:
    return [x for x in series if not is_nan_numeric(x) and x is not None]