Module « scipy.special »

Classe « errstate »

Informations générales

Héritage

builtins.object
    errstate

Définition

class errstate(builtins.object):

Description _{[extrait de errstate.__doc__]}

Context manager for special-function error handling.

    Using an instance of `errstate` as a context manager allows
    statements in that context to execute with a known error handling
    behavior. Upon entering the context the error handling is set with
    `seterr`, and upon exiting it is restored to what it was before.

    Parameters
    ----------
    kwargs : {all, singular, underflow, overflow, slow, loss, no_result, domain, arg, other}
        Keyword arguments. The valid keywords are possible
        special-function errors. Each keyword should have a string
        value that defines the treatement for the particular type of
        error. Values must be 'ignore', 'warn', or 'other'. See
        `seterr` for details.

    See Also
    --------
    geterr : get the current way of handling special-function errors
    seterr : set how special-function errors are handled
    numpy.errstate : similar numpy function for floating-point errors

    Examples
    --------
    >>> import scipy.special as sc
    >>> from pytest import raises
    >>> sc.gammaln(0)
    inf
    >>> with sc.errstate(singular='raise'):
    ...     with raises(sc.SpecialFunctionError):
    ...         sc.gammaln(0)
    ...
    >>> sc.gammaln(0)
    inf

    We can also raise on every category except one.

    >>> with sc.errstate(all='raise', singular='ignore'):
    ...     sc.gammaln(0)
    ...     with raises(sc.SpecialFunctionError):
    ...         sc.spence(-1)
    ...
    inf

    

Constructeur(s)

Signature du constructeur	Description
__init__(self, **kwargs)

Liste des opérateurs

Opérateurs hérités de la classe object

__eq__, __ge__, __gt__, __le__, __lt__, __ne__

Méthodes héritées de la classe object

__delattr__, __dir__, __format__, __getattribute__, __hash__, __init_subclass__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__