pqc.utils.stats

Provide small statistical utilities without SciPy.

These helpers implement small, reusable statistical transforms used by the detectors. They intentionally avoid SciPy to keep dependencies minimal.

Functions

bh_fdr(pvals, q)	Apply Benjamini–Hochberg FDR and return discovery mask.
chi2_sf_approx(chi2, dof)	Approximate chi-square survival function using Wilson-Hilferty transform.
norm_abs_sf(x)	Return survival probabilities for |Z| where Z ~ N(0,1).
robust_scale_mad(x)	Estimate scale using the median absolute deviation (MAD).