def bigger(old_value, value):
    """Checks if a value is an improvement. Bigger values are improvements.

    Parameters
    ----------
    old_value : int or float
        The old value.
    value : int or float
        The new value that is checked.

    Returns
    -------
    bool
        Returns true if the new value is bigger than the old value, else
        returns false.

    Examples
    --------
    Some simple tests:

    .. doctest::

        >>> from lclpy.aidfunc.is_improvement_func import bigger
        >>> bigger(2, 5)
        True
        >>> bigger(5, 2)
        False
        >>> bigger(3,3)
        False

    """
    return value > old_value
