y `scipy.stats.bootstrap`.

Attributes
----------
confidence_interval : ConfidenceInterval
    The bootstrap confidence interval as an instance of
    `collections.namedtuple` with attributes `low` and `high`.
bootstrap_distribution : ndarray
    The bootstrap distribution, that is, the value of `statistic` for
    each resample. The last dimension corresponds with the resamples
    (e.g. ``res.bootstrap_distribution.shape[-1] == n_resamples``).
standard_error : float or ndarray
    The bootstrap standard error, that is, the sample standard
    deviation of the bootstrap distribution.

