Describe your issue

Several statistical distribution methods emit warnings stemming from Boost. This issue tracks the status of all of them.

• beta.ppf as reported here; should be fixed by short-circuit overflow protection for M1 Mac clang boostorg/math#827
• ncf as reported in BUG: stats: spurious warning from ncf.cdf #17101, should be fixed by Fix for issue 845 boostorg/math#846
• nct - I'm not sure that this has been reported separately yet. Is it caused by the same sort of thing?
• ncx2 - Ditto.

gh-17272 will silence the failures in SciPy's tests temporarily, but as many of these marks as possible should be removed when gh-17207 merges.

Original Post

Describe your issue.

macOS CI is failing due to an overflow. I am still trying to reproduce locally.

NumPy was updated to 1.21.3, could be this or another dependency.

https://github.com/scipy/scipy/runs/3960228039

Reproducing Code Example

# from scipy/stats/tests/test_distributions.py:2878: in test_issue_12796
import numpy as np
from scipy import stats
q = 0.999995
a = np.array([ 2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20])
b = np.array([99999, 99998, 99997, 99996, 99995, 99994, 99993, 99992, 99991, 99990, 99989, 99988, 99987, 99986, 99985, 99984, 99983, 99982, 99981])
stats.beta.ppf(q, a, b)

Error message

FAILED scipy/stats/tests/test_distributions.py::TestBeta::test_issue_12635 - ...
927
FAILED scipy/stats/tests/test_distributions.py::TestBeta::test_issue_12794 - ...
928
FAILED scipy/stats/tests/test_distributions.py::TestBeta::test_issue_12796 - ...
...
scipy/stats/_continuous_distns.py:626: in _ppf
916
    return _boost._beta_ppf(q, a, b)
917
E   RuntimeWarning: overflow encountered in _beta_ppf

SciPy/NumPy/Python version information

master on macOS/CI