fix(stats): keep regression inference alive when squared deviations underflow

2026-09-27 19:26:04 +02:00
parent 275de79123
commit 32e2c1efab
3 changed files with 296 additions and 6 deletions
@@ -33,6 +33,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
  p-values and `NoncentralTCDF` at extreme t answer the tail the
  format still holds instead of a silent zero or an error naming a
  NaN.
+- `LinearRegression` and `WeightedLinearRegression` keep their
+  inference alive when the squared deviations underflow to zero: the
+  standard errors, t and F statistics read factored sums of squares
+  instead of reporting infinity beside zero evidence.

 ## [1.0.0] - 2026-09-03