torchcell.verification.DerivationMethod

class DerivationMethod(*values)[source]

Bases: StrEnum

How a non-sourced statistic’s value was fixed (ordered by preference).

back_solve and the range fallbacks apply only when the source does NOT state the value per-record. Policy (CLAUDE.md “Adding Datasets”): prefer back_solve from another reported statistic; else conservative_low; median only if a central estimate is explicitly wanted over conservatism.