columna API reference - v0.5.0
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    Function capability

    • Process capability indices (Minitab Capability Analysis — Normal). Within σ from R̄/d₂ (default) or S̄/c₄ when method: 's'; overall σ = sample sd.

      Parameters

      • x: number[][] | ArrayLike<number | null | undefined>
      • Optionaloptions: {
            confidence?: number;
            lsl?: number;
            method?: "r" | "s";
            sigmaWithin?: number;
            subgroup?: number;
            target?: number;
            usl?: number;
            withinDF?: number;
        }
        • Optionalconfidence?: number
        • Optionallsl?: number
        • Optionalmethod?: "r" | "s"
        • OptionalsigmaWithin?: number

          Explicit within sigma from an independently fitted process estimator.

        • Optionalsubgroup?: number
        • Optionaltarget?: number
        • Optionalusl?: number
        • OptionalwithinDF?: number

          Effective DF for approximate within-sigma confidence intervals.

      Returns CapabilityResult