columna API reference - v0.4.0
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    Interface CapabilityResult

    interface CapabilityResult {
        confidence: number;
        Cp?: number;
        Cpk?: number;
        cpkCI?: [number, number];
        Cpl?: number;
        Cpm?: number;
        Cpu?: number;
        lsl?: number;
        mean: number;
        n: number;
        Pp?: number;
        Ppk?: number;
        Ppl?: number;
        ppmOverall?: number;
        ppmWithin?: number;
        Ppu?: number;
        sigmaOverall: number;
        sigmaWithin: number;
        target?: number;
        usl?: number;
        zBench?: number;
    }
    Index
    confidence Cp? Cpk? cpkCI? Cpl? Cpm? Cpu? lsl? mean n Pp? Ppk? Ppl? ppmOverall? ppmWithin? Ppu? sigmaOverall sigmaWithin target? usl? zBench?
    confidence: number
    Cp?: number
    Cpk?: number
    cpkCI?: [number, number]

    Approximate CI for Cpk (Bissell / Chou–Owen–Borrego normal approx).

    Cpl?: number
    Cpm?: number
    Cpu?: number
    lsl?: number
    mean: number
    n: number
    Pp?: number
    Ppk?: number
    Ppl?: number
    ppmOverall?: number

    Expected PPM using overall σ.

    ppmWithin?: number

    Expected PPM outside specs using within σ (normal).

    Ppu?: number
    sigmaOverall: number

    Overall sample sd.

    sigmaWithin: number

    Within-subgroup σ (R̄/d₂ or S̄/c₄); equals overall when no subgrouping.

    target?: number
    usl?: number
    zBench?: number

    Z.Bench = Φ⁻¹(1 − P(defect overall)).

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