Box-Cox Transformer

ISO 22514-2 Compliant Logic

Advanced Statistical Pre-processing • Data Normalization

Raw Data (Comma Separated)

Input only positive values (Y > 0) for Box-Cox logic.

Transformation Parameter (λ)

0 (Natural Log) Optimal λ Search

Distribution Before

Distribution After (Transformed)

Transformed Data Traceability

Obs # Original Value Transformed (W)
Mathematical Proof: If λ ≠ 0, W = (Y^λ - 1) / λ. If λ = 0, W = ln(Y). This transformation stabilizes variance and normalizes data for subsequent Cpk/Ppk analysis[cite: 66, 172].