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Johnson SU Distribution

    Probability Density Function (PDF)
      EXPFORECASTStep3
    Cumulative Distribution Function (CDF)
      EXPFORECASTStep3
    where z = (𝑥 - 𝜂)/𝜆 and Φ(𝑥) is the CDF of the standard normal distribution.
    • Range -∞ < 𝑥 < ∞
    • Location parameter, 𝜂, the mean
    • Scale parameter 𝜆 > 0
    • Shape1 parameter 𝛾
    • Shape2 parameter 𝛿 > 0

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