
ARENA BASIC EDITION USER’S GUIDE
68
• • • • •
JohnsonJOHNSON(Gamma, Delta, Lambda, Xi) or JOHN(Gamma,
Delta, Lambda, Xi)
Gamma shape parameter (
γ
), Delta shape parameter (
δ
> 0), Lambda scale parameter (
λ
),
and Xi location parameter (
ξ
).
(−∞, +∞) Unbounded Family
[ξ, ξ + λ] Bounded Family
The flexibility of the Johnson distribution allows it to fit many data sets. Arena can
sample from both the unbounded and bounded form of the distribution. If Delta (
δ
) is
passed as a positive number, the bounded form is used. If Delta is passed as a negative
value, the unbounded form is used with |
δ
| as the parameter.
Probability
Density
Function
Parameters
Range
Applications
Unbounded Family Bounded Family
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